path: root/lib/common_test/doc/src/notes.xml

<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">

<chapter>
  <header>
    <copyright>
      <year>2004</year><year>2013</year>
      <holder>Ericsson AB. All Rights Reserved.</holder>
    </copyright>
    <legalnotice>
      The contents of this file are subject to the Erlang Public License,
      Version 1.1, (the "License"); you may not use this file except in
      compliance with the License. You should have received a copy of the
      Erlang Public License along with this software. If not, it can be
      retrieved online at http://www.erlang.org/.

      Software distributed under the License is distributed on an "AS IS"
      basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
      the License for the specific language governing rights and limitations
      under the License.

    </legalnotice>

    <title>Common Test Release Notes</title>
    <prepared>Peter Andersson</prepared>
    <responsible>Peter Andersson</responsible>
    <docno></docno>
    <approved></approved>
    <checked></checked>
    <date>2007-12-01</date> 
    <rev>A</rev>
    <file>notes.xml</file>
    </header>

<section><title>Common_Test 1.8.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Ticket OTP-11971 introduced a runtime dependency towards
	    test_server-3.7.1, since the interface between
	    test_server and common_test was changed. Erroneously, the
	    common_test.app file was not updated according to this.
	    This has now been corrected.</p>
          <p>
	    Own Id: OTP-12037</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Warning: this is experimental and may disappear or change
	    without previous warning.</p>
          <p>
	    Experimental support for running Quickcheck and PropEr
	    tests from common_test suites is added to common_test.
	    See the reference manual for the new module
	    <c>ct_property_testing</c>.</p>
          <p>
	    Experimental property tests are added under
	    <c>lib/{inet,ssh}/test/property_test</c>. They can be run
	    directly or from the commont_test suites
	    <c>inet/ftp_property_test_SUITE.erl</c> and
	    <c>ssh/test/ssh_property_test_SUITE.erl</c>.</p>
          <p>
	    See the code in the <c>test</c> directories and the man
	    page for details.</p>
          <p>
	    (Thanks to Tuncer Ayaz for a patch adding Triq)</p>
          <p>
	    Own Id: OTP-12119</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.8.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Substrings in long telnet messages would sometimes get
	    wrongly reversed. This error has been corrected.</p>
          <p>
	    Own Id: OTP-11871 Aux Id: seq12581 </p>
        </item>
        <item>
          <p>
	    The basic_html logging mode in Common Test (for
	    compatibility with old browsers) generated HTML code with
	    unbalanced tags. This has been fixed.</p>
          <p>
	    Own Id: OTP-11917 Aux Id: seq12598 </p>
        </item>
        <item>
          <p>
	    The mechanism for running code cover analysis with
	    common_test has been improved. Earlier, if a test run
	    consisted of multiple tests, cover would be started and
	    stopped for each test. This would give "intermediate"
	    cover logs available from the "Coverage log" link on the
	    test suite result pages. To accumulate cover data over
	    all tests, the 'export' option had to be used in the
	    cover spec file. This was not well documented, and the
	    functionality was quite confusing.</p>
          <p>
	    Using the 'nodes' option in the cover spec file would
	    fail when the test run consisted of multiple tests, since
	    the specified nodes would only be included in the cover
	    analysis of the first test.</p>
          <p>
	    The repeated compilation and analysis of the same modules
	    was also very time consuming.</p>
          <p>
	    To overcome these problems, ct will now only cover
	    compile and analyze modules once per test run, i.e. once
	    for each cover spec file. The log file is available via a
	    new button on the top level index page. The old "Coverage
	    log" links on the test suite result pages still exist,
	    but they all point to the same log containing the
	    accumulated result.</p>
          <p>
	    Own Id: OTP-11971</p>
        </item>
        <item>
          <p>
	    If multiple tests would run simultaneously on different
	    Erlang nodes, writing their logs to the same directory,
	    then there would often be entries in the all_runs.html
	    log file showing incomplete results (all zeroes) upon
	    completion. This problem was caused by a bug in the
	    Common Test log cache mechanism, which has been fixed.</p>
          <p>
	    Own Id: OTP-11988 Aux Id: seq12611 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.8</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The error generated if a test case process received an
	    exit from a linked process while executing
	    init_per_testcase/2, was handled incorrectly by Common
	    Test. The problem has been solved, and Common Test now
	    reports this type of error correctly, with proper error
	    reason and exit location as well.</p>
          <p>
	    Own Id: OTP-11643</p>
        </item>
        <item>
          <p>
	    Running a parallel test case group with two or more
	    instances of the same test case would result in identical
	    log file names, and one test case instance would
	    overwrite the log file of another. This problem has been
	    solved.</p>
          <p>
	    Own Id: OTP-11644</p>
        </item>
        <item>
          <p>
	    Application upgrade (appup) files are corrected for the
	    following applications: </p>
          <p>
	    <c>asn1, common_test, compiler, crypto, debugger,
	    dialyzer, edoc, eldap, erl_docgen, et, eunit, gs, hipe,
	    inets, observer, odbc, os_mon, otp_mibs, parsetools,
	    percept, public_key, reltool, runtime_tools, ssh,
	    syntax_tools, test_server, tools, typer, webtool, wx,
	    xmerl</c></p>
          <p>
	    A new test utility for testing appup files is added to
	    test_server. This is now used by most applications in
	    OTP.</p>
          <p>
	    (Thanks to Tobias Schlager)</p>
          <p>
	    Own Id: OTP-11744</p>
        </item>
        <item>
          <p>
	    The <c>cth_surefire</c> hook would crash in
	    <c>pre_init_per_suite/3</c> if a previous hook returned
	    <c>{skip,Reason}</c> or <c>{fail,Reason}</c> instead of a
	    <c>Config</c> list. This error has been corrected, and
	    <c>cth_surefire</c> will now simply propagate the
	    received <c>InitData</c> value instead.</p>
          <p>
	    Own Id: OTP-11811</p>
        </item>
        <item>
          <p>
	    Specs of return values are corrected for
	    <c>ct_netconfc:get/2,3</c>,
	    <c>ct_netconfc:get_config/3,4</c>,
	    <c>ct_netconfc:action/2,3</c>,
	    <c>ct_netconfc:send_rpc/2,3</c> and
	    <c>ct_netconfc:send/2,3</c>.</p>
          <p>
	    Own Id: OTP-11834 Aux Id: seq12574 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    ct_telnet can now log all communication taking place
	    during a telnet session. Previously, only information
	    about ct_telnet operations and commands, as well as
	    explicitly requested data from the server, was logged.</p>
          <p>
	    Furthermore, a logging mechanism based on an Error Logger
	    event handler and a dedicated Common Test hook,
	    <c>cth_conn_log</c>, now makes it possible to print data
	    for individual connections to separate log files. Please
	    see the <c>ct_telnet</c> reference manual for more
	    information and examples.</p>
          <p>
	    Important note: A new argument, <c>ConnName</c> has been
	    added to the <c>unix_telnet:connect/5</c> callback
	    function. This forces users that use private ct_telnet
	    callback modules to update their code according to
	    <c>unix_telnet:connect/6</c>. Please see the
	    <c>unix_telnet</c> reference manual and source code
	    module for details.</p>
          <p>
	    Own Id: OTP-11440 Aux Id: seq12457 </p>
        </item>
        <item>
          <p>
	    A new timeout option has been introduced for the
	    <c>ct_telnet:expect/3</c> function. With
	    <c>{total_timeout,Time}</c> it's possible to set a time
	    limit for the complete expect operation. After
	    <c>Time</c> milliseconds, <c>expect/3</c> returns
	    <c>{error,timeout}</c>. The default value used if
	    <c>total_timeout</c> is not specified, is infinity (i.e.
	    no time limit). Please see the <c>ct_telnet</c> reference
	    manual for more information.</p>
          <p>
	    Own Id: OTP-11689</p>
        </item>
        <item>
          <p>
	    Some function specs are corrected or moved and some edoc
	    comments are corrected in order to allow use of edoc.
	    (Thanks to Pierre Fenoll)</p>
          <p>
	    Own Id: OTP-11702</p>
        </item>
        <item>
          <p>
	    Test case group name information has been added to the
	    data sent with <c>tc_user_skip</c> and
	    <c>tc_auto_skip</c> event messages, as well as the data
	    passed in calls to the CT Hook functions
	    <c>on_tc_skip/3</c> and <c>on_tc_fail/3</c>. The
	    modification only affects the function name
	    element/argument. This value remains an atom if the test
	    case in question does not belong to a test case group.
	    Otherwise a tuple <c>{FuncName,GroupName}</c>
	    (<c>{atom(),atom()}</c>) is passed instead.</p>
          <p>
	    Note that this change may (depending on the patterns used
	    for matching) require modifications of user event
	    handlers and hook modules. Please see the Event Handling
	    chapter in the Common Test User's Guide, and the
	    reference manual for <c>ct_hooks</c>, for details.</p>
          <p>
	    Note also that the Test Server framework callback
	    function <c>report/2</c> has been modified. This change
	    only affects users with test frameworks interfacing Test
	    Server rather than Common Test. See the
	    <c>test_server_ctrl</c> reference manual for details.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-11732 Aux Id: seq12541 </p>
        </item>
        <item>
          <p>
	    If Common Test can't prompt the user to abort or continue
	    the test run when one or more test suites fail to
	    compile, a new option,
	    <c>{abort_if_missing_suites,Bool}</c>, can be used to
	    specify whether it should proceed with the test run, or
	    stop execution. The default value of <c>Bool</c> is
	    <c>false</c> (i.e. to proceed even if suites are
	    missing).</p>
          <p>
	    Own Id: OTP-11769</p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    common_test: Fix problems reported by Dialyzer.</p>
          <p>
	    Own Id: OTP-11525</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.7.4</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Return values from group and testcase info functions are
	    now properly checked, and associated test cases are auto
	    skipped if a return value is invalid.</p>
          <p>
	    Own Id: OTP-10631 Aux Id: kunagi-345 [256] </p>
        </item>
        <item>
	    <p>The way Common Test handles skipping of test cases has
	    been updated. In previous versions, returning
	    <c>{skip,Reason}</c> from a configuration function (such
	    as init_per_suite or init_per_group), resulted in all
	    affected test cases getting skipped with status
	    <c>auto_skipped</c>. This was inappropriate, since this
	    status is supposed to be used to inform that Common Test
	    has taken the initiative to skip something (e.g. a test
	    case group if init_per_group failed). Therefore, in this
	    version of Common Test, whenever the user skips a suite,
	    group, or individual test case (by means of a
	    configuration function or test specification term), the
	    affected test cases get the status <c>user_skipped</c>
	    instead.</p> <p>This update has meant a few changes that
	    may affect Common Test users in various ways: <list>
	    <item>The test results and statistics will be affected,
	    which is important to know when running regression tests
	    and comparing results to previous test runs.</item>
	    <item>Users that read or parse the textual log file
	    <c>suite.log</c> will notice that an auto skipped
	    function is now reported as <c>auto_skipped</c> rather
	    than <c>skipped</c> as before.</item> <item>When
	    <c>require</c> fails in an info function (such as suite/0
	    or group/1), all affected configuration functions and
	    test cases are marked as <c>auto_skipped</c>.</item>
	    <item>If Common Test detects an error in the test suite
	    (such as e.g. an invalid all/0 function), all affected
	    configuration functions and test cases are marked as
	    <c>auto_skipped</c>.</item> <item>If a repeated test run
	    session reaches a deadline with <c>force_stop</c>
	    enabled, all remaining test cases are marked as
	    <c>auto_skipped</c> rather than <c>user_skipped</c> as
	    before.</item> <item>The event messages that Common Test
	    generates during test runs have been affected by this
	    update. For details see OTP-11524.</item> </list> </p>
          <p>
	    Own Id: OTP-11305 Aux Id: OTP-11524 </p>
        </item>
        <item>
          <p>
	    Returning {skip, Reason} from a pre_end_per_group/3 user
	    hook function would result in an exit in the Common Test
	    cth_log_redirect hook. This problem has been solved.</p>
          <p>
	    Own Id: OTP-11409 Aux Id: seq12446 </p>
        </item>
        <item>
          <p>
	    When the netconf server did not respond to the
	    close-session request, the call to
	    ct_netconfc:close_session/2 would hang forever waiting
	    for the netconf client to terminate. This has been
	    corrected. The client will now always terminate (and take
	    down the connection) if the close-session request times
	    out.</p>
          <p>
	    Own Id: OTP-11478</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Fix cth_log_redirect.erl to fulfill gen_event behaviour.
	    Thanks to Roberto Aloi.</p>
          <p>
	    Own Id: OTP-11401</p>
        </item>
        <item>
          <p>
	    The first argument of the CT hook callback function
	    <c>on_tc_skip/3</c> has been modified. When this function
	    is called for <c>init_per_group</c> or
	    <c>end_per_group</c>, the value of the first argument is
	    now <c>{init_per_group,GroupName}</c> or
	    <c>{end_per_group,GroupName}</c>.</p>
          <p>
	    Own Id: OTP-11523</p>
        </item>
        <item>
	    <p>The following modifications have been made to the
	    event messages that Common Test sends during test
	    execution: <list> <item>For the <c>tc_auto_skip</c>
	    event, the value of the <c>Func</c> element has changed
	    from <c>end_per_group</c> to
	    <c>{end_per_group,GroupName}</c>.</item> <item>When
	    <c>require</c> fails in an info function, such as suite/0
	    or group/1, the init configuration function is now
	    reported as <c>auto_skipped</c> intead of <c>skipped</c>,
	    with the <c>tc_done</c> event.</item> <item>When
	    <c>require</c> fails in an info function because of a
	    configuration name already in use, the <c>tc_done</c>
	    event now reports the error with a tuple (of size 2)
	    tagged <c>failed</c> instead of <c>skipped</c>.</item>
	    </list> Please see the Event Handling chapter in the
	    Common Test User's Guide for reference. </p>
          <p>
	    Own Id: OTP-11524 Aux Id: OTP-11305 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.7.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Documentation is added for ct_netconfc:send and
	    ct_netconfc:send_rpc.</p>
          <p>
	    Own Id: OTP-11132</p>
        </item>
        <item>
          <p>
	    ct_netconfc:create_subscription only allowed one XML
	    element inside the 'filter' element. According to RFC5277
	    it should be allowed to add any number of elements inside
	    the filter, so this is now corrected.</p>
          <p>
	    Own Id: OTP-11166</p>
        </item>
        <item>
          <p>
	    The error handler installed by the Common Test hook
	    cth_log_redirect did not respond to init:stop/1/2. This
	    has been corrected.</p>
          <p>
	    Own Id: OTP-11175 Aux Id: seq12356 </p>
        </item>
        <item>
          <p>
	    Calling ct:pal/2 or ct:print/2 when Common Test was not
	    running, would cause an exit. This has been changed and
	    the string is now simply printed to stdout instead.</p>
          <p>
	    Own Id: OTP-11176</p>
        </item>
        <item>
          <p>
	    Fixed problem with the cth_log_redirect hook making calls
	    to an undefined function in ct_logs.</p>
          <p>
	    Own Id: OTP-11238</p>
        </item>
        <item>
          <p>
	    When running tests with the 'repeat' option, the Common
	    Test utility process did not always terminate quickly
	    enough after a test run, causing the start of the next
	    run to fail. A monitor is now used to ensure termination
	    of the utility process after each test run.</p>
          <p>
	    Own Id: OTP-11244 Aux Id: seq12396 </p>
        </item>
        <item>
          <p>
	    Test Server installed an error handler (test_server_h)
	    only to be able to write the name of the current test
	    case to stdout whenever it received an error- or progress
	    report. This functionality was not useful and has been
	    removed. The built-in Common Test hook, cth_log_redirect,
	    has instead been improved to now also tag all error- and
	    progress reports in the log with suite-, group-, and/or
	    test case name.</p>
          <p>
	    Own Id: OTP-11263 Aux Id: seq12251 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A new log, the "Pre- and Post Test I/O Log", has been
	    introduced, which makes it possible to capture error- and
	    progress reports, as well as printouts made with ct:log/2
	    and ct:pal/2, before and after a test run. (Some minor
	    improvements of the logging system have been made at the
	    same time). Links to the new log are found on the Common
	    Test Framework Log page. The Common Test User's Guide has
	    been updated with information about the new log and also
	    with a new section on how to synchronize external
	    applications with Common Test by means of the CT Hook
	    init and terminate functions.</p>
          <p>
	    Own Id: OTP-11272</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.7.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    A design flaw in the generic connection handling in
	    Common Test made it impossible to implement a connection
	    handler that could map multiple connection names (i.e.
	    configuration variable aliases) to single connection
	    pids. This problem has been solved.</p>
          <p>
	    Own Id: OTP-10126 Aux Id: kunagi-178 [89] </p>
        </item>
        <item>
          <p>
	    If a telnet connection is hanging, then a call to
	    ct_telnet:close/1 will time out after 5 seconds and the
	    connection process is brutally killed. In some cases the
	    connection would not be unregistered and attempts at
	    opening a new connection with the same name would make
	    common_test try to reuse the same connection since it
	    believed that it was still alive. This has been corrected
	    - a killed connection is now always unregistered.</p>
          <p>
	    Own Id: OTP-10648 Aux Id: seq12212 </p>
        </item>
        <item>
          <p>
	    Test performance has been improved by means of a cache
	    for the top level HTML index logs (all_runs.html and
	    index.html, in the logdir directory). This solves
	    problems with slow start up times and test execution
	    times increasing with the number of ct_run directories
	    stored in logdir. The cached index entries are stored in
	    RAM during test execution and are saved to file in logdir
	    (for faster start up times) whenever a test run finishes.</p>
          <p>
	    Own Id: OTP-10855</p>
        </item>
        <item>
          <p>
	    Testing of the test specification functionality has been
	    improved and a couple of minor bugs have been discovered
	    and corrected.</p>
          <p>
	    Own Id: OTP-10857</p>
        </item>
        <item>
          <p>
	    Links to the top level index files in some HTML footers
	    had disappeared. This error has been corrected. Also, a
	    problem with the suite overview log file not being closed
	    properly has been solved.</p>
          <p>
	    Own Id: OTP-11046</p>
        </item>
        <item>
          <p>
	    Common Test would, in case of timetrap error, print a
	    warning in the log if end_per_testcase wasn't implemented
	    in the suite, even though it's an optional function. This
	    printout has been removed.</p>
          <p>
	    Own Id: OTP-11052</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    If it could not be decided which test case a certain log
	    printout belonged to, the common test framework log was
	    earlier used. Such printouts are now instead sent to
	    unexpected_io.log.html in test_server so that there is
	    only one place to look for "missing" printouts.</p>
          <p>
	    Own Id: OTP-10494 Aux Id: kunagi-319 [230] </p>
        </item>
        <item>
          <p>
	    Make cover smarter about finding source from beam.</p>
          <p>
	    In particular, search using the source path in
	    module_info if the current heuristic fails.</p>
          <p>
	    Own Id: OTP-10902</p>
        </item>
        <item>
          <p>
	    Add a variant of ct_slave:start/2 that starts a node with
	    specified options on the local host.</p>
          <p>
	    Own Id: OTP-10920</p>
        </item>
        <item>
          <p>
	    Integrate elliptic curve contribution from Andreas
	    Schultz </p>
          <p>
	    In order to be able to support elliptic curve cipher
	    suites in SSL/TLS, additions to handle elliptic curve
	    infrastructure has been added to public_key and crypto.</p>
          <p>
	    This also has resulted in a rewrite of the crypto API to
	    gain consistency and remove unnecessary overhead. All OTP
	    applications using crypto has been updated to use the new
	    API.</p>
          <p>
	    Impact: Elliptic curve cryptography (ECC) offers
	    equivalent security with smaller key sizes than other
	    public key algorithms. Smaller key sizes result in
	    savings for power, memory, bandwidth, and computational
	    cost that make ECC especially attractive for constrained
	    environments.</p>
          <p>
	    Own Id: OTP-11009</p>
        </item>
        <item>
	    <p> Postscript files no longer needed for the generation
	    of PDF files have been removed. </p>
          <p>
	    Own Id: OTP-11016</p>
        </item>
        <item>
          <p>
	    A link is added from the red error printout in a test
	    case log (for a failed test case) to the full error
	    description at the end of the log. The reason for this is
	    that the error description in the red field is sometimes
	    truncated at 50 characters in order to keep the log as
	    short and easy to read as possible.</p>
          <p>
	    Own Id: OTP-11044 Aux Id: seq12304 </p>
        </item>
        <item>
          <p>
	    A new option 'no_prompt_check' is added to
	    ct_telnet:expect/3. If this option is used, ct_telnet
	    will not wait for a prompt or a newline before attempting
	    to match the given pattern.</p>
          <p>
	    Own Id: OTP-11095</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.7.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    If an event handler installed in the CT Master event
	    manager took too long to respond during the termination
	    phase, CT Master crashed because of a timeout after 5
	    secs. This would leave the system in a bad state. The
	    problem has been solved by means of a 30 min timeout
	    value and if CT Master gets a timeout after that time, it
	    now kills the event manager and shuts down properly.</p>
          <p>
	    Own Id: OTP-10634 Aux Id: kunagi-347 [258] </p>
        </item>
        <item>
          <p>
	    Printing with any of the ct printout functions from an
	    event handler installed by Common Test, would cause a
	    deadlock. This problem has been solved.</p>
          <p>
	    Own Id: OTP-10826 Aux Id: seq12250 </p>
        </item>
        <item>
          <p>
	    Using the force_stop flag/option to interrupt a test run
	    caused a crash in Common Test. This problem has been
	    solved.</p>
          <p>
	    Own Id: OTP-10832</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Removed depricated run_test program, use ct_run instead.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9052</p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    Test case execution time increases with size of test run.</p>
          <p>
	    Own Id: OTP-10855</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.7</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Severe errors detected by <c>test_server</c> (e.g. if log
	    files directories cannot be created) will now be reported
	    to <c>common_test</c> and noted in the <c>common_test</c>
	    logs.</p>
          <p>
	    Own Id: OTP-9769 Aux Id: kunagi-202 [113] </p>
        </item>
        <item>
          <p>
	    The earlier undocumented cross cover feature for
	    accumulating cover data over multiple tests has now been
	    fixed and documented.</p>
          <p>
	    Own Id: OTP-9870 Aux Id: kunagi-206 [117] </p>
        </item>
        <item>
          <p>
	    If a busy test case generated lots of error messages,
	    cth_log_redirect:post_end_per_testcase would crash with a
	    timeout while waiting for the error logger to finish
	    handling all error reports. The default timer was 5
	    seconds. This has now been extended to 5 minutes.</p>
          <p>
	    Own Id: OTP-10040 Aux Id: kunagi-173 [84] </p>
        </item>
        <item>
	    <p>When a test case failed because of a timetrap time
	    out, the <c>Config</c> data for the case was lost in the
	    following call to <c>end_per_testcase/2</c>, and also in
	    calls to the CT Hook function
	    <c>post_end_per_testcase/4</c>. This problem has been
	    solved and the <c>Config</c> data is now correctly passed
	    to the above functions after a timetrap timeout
	    failure.</p>
          <p>
	    Own Id: OTP-10070 Aux Id: kunagi-175 [86] </p>
        </item>
        <item>
          <p>
	    Some calls to deprecated and removed functions in snmp
	    are removed from ct_snmp.</p>
          <p>
	    Own Id: OTP-10088 Aux Id: kunagi-176 [87] </p>
        </item>
        <item>
	    <p>In test_server, the same process would supervise the
	    currently running test case and be group leader (and IO
	    server) for the test case. Furthermore, when running
	    parallel test cases, new temporary supervisor/group
	    leader processes were spawned and the process that was
	    group leader for sequential test cases would not be
	    active. That would lead to several problems:</p>
	    <p>* Processes started by init_per_suite will inherit the
	    group leader of the init_per_suite process (and that
	    group leader would not process IO requests when parallel
	    test cases was running). If later a parallel test case
	    caused such a processto print using (for example)
	    io:format/2, the calling would hang.</p>
	    <p>* Similarly, if a process was spawned from a parallel
	    test case, it would inherit the temporary group leader
	    for that parallel test case. If that spawned process
	    later - when the group of parallel tests have finished -
	    attempted to print something, its group leader would be
	    dead and there would be <c>badarg</c> exception.</p>
	    <p>Those problems have been solved by having group
	    leaders separate from the processes that supervises the
	    test cases, and keeping temporary group leader process
	    for parallel test cases alive until no more process in
	    the system use them as group leaders.</p>
	    <p>Also, a new <c>unexpected_io.log</c> log file
	    (reachable from the summary page of each test suite) has
	    been introduced. All unexpected IO will be printed into
	    it(for example, IO to a group leader for a parallel test
	    case that has finished).</p>
          <p>
	    Own Id: OTP-10101 Aux Id: OTP-10125 </p>
        </item>
        <item>
          <p>
	    Some bugfixes in <c>ct_snmp:</c></p>
          <p>
	    <list> <item> ct_snmp will now use the value of the
	    'agent_vsns' config variable when setting the 'variables'
	    parameter to snmp application agent configuration.
	    Earlier this had to be done separately - i.e. the
	    supported versions had to be specified twice. </item>
	    <item> Snmp application failed to write notify.conf since
	    ct_snmp gave the notify type as a string instead of an
	    atom. This has been corrected. </item> </list></p>
          <p>
	    Own Id: OTP-10432</p>
        </item>
        <item>
          <p>
	    Some bugfixes in <c>ct_snmp</c>:</p>
          <p>
	    <list> <item> Functions <c>register_users/2</c>,
	    <c>register_agents/2</c> and <c>register_usm_users/2</c>,
	    and the corresponding <c>unregister_*/1</c> functions
	    were not executable. These are corrected/rewritten.
	    </item> <item> Function <c>update_usm_users/2</c> is
	    removed, and an unregister function is added instead.
	    Update can now be done with unregister_usm_users and then
	    register_usm_users. </item> <item> Functions
	    <c>unregister_*/2</c> are added, so specific
	    users/agents/usm users can be unregistered. </item>
	    <item> Function <c>unload_mibs/1</c> is added for
	    completeness. </item> <item> Overriding configuration
	    files did not work, since the files were written in
	    priv_dir instead of in the configuration dir
	    (priv_dir/conf). This has been corrected. </item> <item>
	    Arguments to <c>register_usm_users/2</c> were faulty
	    documented. This has been corrected. </item> </list></p>
          <p>
	    Own Id: OTP-10434 Aux Id: kunagi-264 [175] </p>
        </item>
        <item>
          <p>
	    Faulty exported specs in common test has been corrected
	    to <c>ct_netconfc:hook_options/0</c> and
	    <c>inet:hostname/0</c></p>
          <p>
	    Own Id: OTP-10601</p>
        </item>
        <item>
          <p>
	    The netconf client in common_test did not adjust the
	    window after receiving data. Due to this, the client
	    stopped receiving data after a while. This has been
	    corrected.</p>
          <p>
	    Own Id: OTP-10646</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
	    <p>It is now possible to let a test specification include
	    other test specifications. Included specs can either be
	    joined with the source spec (and all other joined specs),
	    resulting in one single test run, or they can be executed
	    in separate test runs. Also, a start flag/option,
	    <c>join_specs</c>, has been introduced, to be used in
	    combination with the <c>spec</c> option. With
	    <c>join_specs</c>, Common Test can be told to either join
	    multiple test specifications, or run them separately.
	    Without <c>join_specs</c>, the latter behaviour is
	    default. Note that this is a change compared to earlier
	    versions of Common Test, where specifications could only
	    be joined. More information can be found in the Running
	    Tests chapter in the User's Guide (see the Test
	    Specifications section).</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9881 Aux Id: kunagi-350 [261] </p>
        </item>
        <item>
          <p>
	    The <c>ct_slave:start/3</c> function now supports an
	    <c>{env,[{Var,Value}]}</c> option to extend environment
	    for the slave node.</p>
          <p>
	    Own Id: OTP-10469 Aux Id: kunagi-317 [228] </p>
        </item>
        <item>
	    <p> Some examples overflowing the width of PDF pages have
	    been corrected. </p>
          <p>
	    Own Id: OTP-10665</p>
        </item>
        <item>
          <p>
	    Update common test modules to handle unicode <list>
	    <item> Use UTF-8 encoding for all HTML files, except the
	    HTML version of the test suite generated with
	    erl2html2:convert, which will have the same encoding as
	    the original test suite (.erl) file. </item> <item>
	    Encode link targets in HTML files with
	    test_server_ctrl:uri_encode/1. </item> <item> Use unicode
	    modifier 't' with ~s when appropriate. </item> <item> Use
	    unicode:characters_to_list and
	    unicode:characters_to_binary for conversion between
	    binaries and strings instead of binary_to_list and
	    list_to_binary. </item> </list></p>
          <p>
	    Own Id: OTP-10783</p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    CT drops error reason when groups/0 crashes.</p>
          <p>
	    Own Id: OTP-10631 Aux Id: kunagi-345 [256] </p>
        </item>
        <item>
          <p>
	    Event handler on a ct_master node causes hanging.</p>
          <p>
	    Own Id: OTP-10634 Aux Id: kunagi-347 [258] </p>
        </item>
        <item>
          <p>
	    CT fails to open telnet conn after a timetrap timeout.</p>
          <p>
	    Own Id: OTP-10648 Aux Id: seq12212 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.6.3.1</title>

    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    The following corrections/changes are done in the
	    cth_surefire hook:</p>
          <p>
	    <list> <item> Earlier there would always be a
	    'properties' element under the 'testsuites' element. This
	    would exist even if there were no 'property' element
	    inside it. This has been changed so if there are no
	    'property' elements to display, then there will not be a
	    'properties' element either. </item> <item> The XML file
	    will now (unless other is specified) be stored in the top
	    log directory. Earlier, the default directory would be
	    the current working directory for the erlang node, which
	    would mostly, but not always, be the top log directory.
	    </item> <item> The 'hostname' attribute in the
	    'testsuite' element would earlier never have the correct
	    value. This has been corrected. </item> <item> The
	    'errors' attribute in the 'testsuite' element would
	    earlier display the number of failed testcases. This has
	    been changed and will now always have the value 0, while
	    the 'failures' attribute will show the number of failed
	    testcases. </item> <item> A new attribute 'skipped' is
	    added to the 'testsuite' element. This will display the
	    number of skipped testcases. These would earlier be
	    included in the number of failed test cases. </item>
	    <item> The total number of tests displayed by the 'tests'
	    attribute in the 'testsuite' element would earlier
	    include init/end_per_suite and init/end_per_group. This
	    is no longer the case. The 'tests' attribute will now
	    only count "real" test cases. </item> <item> Earlier,
	    auto skipped test cases would have no value in the 'log'
	    attribute. This is now corrected. </item> <item> A new
	    attributes 'log' is added to the 'testsuite' element.
	    </item> <item> A new option named 'url_base' is added for
	    this hook. If this option is used, a new attribute named
	    'url' will be added to the 'testcase' and 'testsuite'
	    elements. </item> </list></p>
          <p>
	    Own Id: OTP-10589</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.6.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The ct:run_test/1 option 'config' only worked with a
	    single config file, not a list of files. This has been
	    fixed.</p>
          <p>
	    Own Id: OTP-10495</p>
        </item>
        <item>
          <p>
	    ct_netconfc:close_session sometimes returned
	    {error,closed} because the ssh connection was closed
	    (from the server side) before the rpc-reply was received
	    by the client. This is normal and can not be helped. It
	    has been corrected so the return will be 'ok' in this
	    case. Other error situations will still give
	    {error,Reason}.</p>
          <p>
	    Own Id: OTP-10510 Aux Id: kunagi-320 [231] </p>
        </item>
        <item>
          <p>
	    ct_netconfc:close_session sometimes returned
	    {error,closed} or (if the connection was named)
	    {error,{process_down,Pid,normal}} because the ssh
	    connection was closed (from the server side) before the
	    rpc-reply was received by the client. This is normal and
	    can not be helped. It has been corrected so the return
	    will be 'ok' in this situation.</p>
          <p>
	    Own Id: OTP-10570</p>
        </item>
        <item>
          <p>
	    Fix bug where ct:require of same name with same config
	    would return name_in_use.</p>
          <p>
	    Own Id: OTP-10572</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A new test case group search functionality has been
	    implemented that makes Common Test search automatically
	    through the group definitions tree (the return value of
	    groups/0) and create tests for all paths of nested groups
	    that match the specification. It also allows for
	    specifying unique paths to sub groups in order to avoid
	    execution of unwanted tests. This new feature can be used
	    whenever starting a test run by means of the ct_run
	    program, the ct:run_test/1 API function, or a Test
	    Specification. Details can be found in the Test Case
	    Group Execution section in the Running Tests chapter.</p>
          <p>
	    Own Id: OTP-10466 Aux Id: kunagi-276 [187] </p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    Restore Config data if lost when test case fails.</p>
          <p>
	    Own Id: OTP-10070 Aux Id: kunagi-175 [86] </p>
        </item>
        <item>
          <p>
	    IO server error in test_server.</p>
          <p>
	    Own Id: OTP-10125 Aux Id: OTP-10101, kunagi-177 [88] </p>
        </item>
        <item>
          <p>
	    Faulty connection handling in common_test.</p>
          <p>
	    Own Id: OTP-10126 Aux Id: kunagi-178 [89] </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.6.2.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The interactive mode (ct_run -shell) would not start
	    properly. This error has been fixed.</p>
          <p>
	    Own Id: OTP-10414</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.6.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    If a CT hook function caused a crash, this could in some
	    situations cause Common Test to terminate due to an
	    illegal IO operation. This error has been corrected.</p>
          <p>
	    Own Id: OTP-10050 Aux Id: seq12039 </p>
        </item>
        <item>
          <p>
	    The Common Test documentation states that timetraps are
	    never active during execution of CT hook functions. This
	    was only true for post hook functions, not for pre hook
	    functions. The code for CT hooks has been modified to
	    behave according to the documentation.</p>
          <p>
	    Own Id: OTP-10069</p>
        </item>
        <item>
          <p>
	    If a CT hook function would call the exit/1 or throw/1
	    BIF (possibly indirectly, e.g. as a result of a timeout
	    in gen_server:call/3), Common Test would hang. This
	    problem has been fixed.</p>
          <p>
	    Own Id: OTP-10072 Aux Id: seq12053 </p>
        </item>
        <item>
          <p>
	    The documentation has been updated with information about
	    how to deal with chaining of hooks which return
	    fail/skip.</p>
          <p>
	    Own Id: OTP-10077 Aux Id: seq12048 </p>
        </item>
        <item>
          <p>
	    When ct_hooks called the id/1 functions of multiple
	    hooks, it would reverse the order of the hooks and call
	    the proceeding init/2 calls in the wrong order. This has
	    been fixed.</p>
          <p>
	    Own Id: OTP-10135</p>
        </item>
        <item>
          <p>
	    The surefire hook now correctly handles autoskipped
	    initialization and test functions.</p>
          <p>
	    Own Id: OTP-10158</p>
        </item>
        <item>
          <p>
	    The ct:get_status/0 function failed to report status if a
	    parallel test case group was running at the time of the
	    call. This has been fixed and the return value for the
	    function has been updated. Please see the ct reference
	    manual for details.</p>
          <p>
	    Own Id: OTP-10172</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The support for "silent connections" has been updated to
	    include ssh. Also, a silent_connections term has been
	    added to the set of test specification terms.</p>
          <p>
	    Own Id: OTP-9625 Aux Id: seq11918 </p>
        </item>
        <item>
          <p>
	    It is now possible to specify an arbitrarily large tuple
	    as the requires config data when using require and
	    ct:get_config. See the ct:get_config and ct:require
	    reference manual pages for details about which keys are
	    allowed.</p>
          <p>
	    This change introduces a backwards incompatability in the
	    <c>ct:require/2</c> interface. Previously when doing
	    <c>ct:require(a_name,{key,subkey})</c>, a_name would be
	    associated with key. This has been changed to that
	    <c>a_name</c> is associated with <c>subkey</c>. This
	    change also effects using <c>require</c> in an
	    suite/group/testcase info function.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9626 Aux Id: seq11920 </p>
        </item>
        <item>
          <p>
	    The ct_run program now sets the OS process exit status
	    before it ends. Value 0 indicates a successful test
	    result, 1 indicates one or more failed or auto-skipped
	    test cases, and 2 indicates test execution failure.</p>
          <p>
	    Own Id: OTP-9865 Aux Id: OTP-10087 </p>
        </item>
        <item>
          <p>
	    It is now possible to sort the HTML tables by clicking on
	    the header elements. In order to reset a sorted table,
	    the browser window should simply be refreshed. This
	    feature requires that the browser supports javascript,
	    and has javascript execution enabled. If the 'ct_run
	    -basic_html' flag is used, no javascript code is included
	    in the generated HTML code.</p>
          <p>
	    Own Id: OTP-9896 Aux Id: seq12034, OTP-9835 </p>
        </item>
        <item>
          <p>
	    A netconf client, ct_netconfc, is added to common_test.
	    It supports basic netconf functionality over SSH. In
	    order to allow testing of both success and failure cases,
	    it is intentionally written to allow non-standard
	    behavior.</p>
          <p>
	    Own Id: OTP-10025</p>
        </item>
        <item>
          <p>
	    The test specification term {define,Constant,Value} has
	    been introduced, which makes it possible to replace
	    constant names (atom()) with values (term()) in arbitrary
	    test specification terms. The 'define' makes the (now
	    deprecated) 'alias' term obsolete. More details,
	    including examples, can be found in the Test
	    Specifications chapter in the Common Test User's Guide.</p>
          <p>
	    Own Id: OTP-10049</p>
        </item>
        <item>
          <p>
	    Verbosity levels for log printouts has been added. This
	    makes it possible to specify preferred verbosity for
	    different categories of log printouts, as well as general
	    printouts (such as standard IO), to allow control over
	    which strings get printed and which get ignored. New
	    versions of the Common Test logging functions, ct:log,
	    ct:pal and ct:print, have been introduced, with a new
	    Importance argument added. The Importance value is
	    compared to the verbosity level at runtime. More
	    information can be found in the chapter about Logging in
	    the Common Test User's Guide.</p>
          <p>
	    Own Id: OTP-10067 Aux Id: seq12050 </p>
        </item>
        <item>
          <p>
	    The return values of ct:run_test/1 and ct:run_testspec/1
	    have been changed from an uninformative 'ok' (independent
	    of the test outcome) to a value,
	    {Ok,Failed,{UserSkipped,AutoSkipped}} (all integers),
	    that presents the final test case result, or a value,
	    {error,Reason}, that informs about fatal test execution
	    failure. See details in the reference manual for ct.</p>
          <p>
	    Own Id: OTP-10087 Aux Id: OTP-9865 </p>
        </item>
        <item>
          <p>
	    The test specification syntax has been updated with new
	    and missing terms, such as 'define', 'verbosity',
	    'auto_compile', 'stylesheet', 'silent_connections',
	    'basic_html' and 'release_shell'. See the Test
	    Specification chapter in the Common Test User's Guide for
	    details.</p>
          <p>
	    Own Id: OTP-10089 Aux Id: OTP-10049 </p>
        </item>
        <item>
          <p>
	    It is now possible to pause execution of a test case, by
	    calling the ct:break/1/2 function. Execution is resumed
	    with a call to ct:continue/0/1. Break/continue also works
	    for test cases executing in parallel. See the ct
	    reference manual for details.</p>
          <p>
	    Own Id: OTP-10127</p>
        </item>
        <item>
          <p>
	    It is now possible to send user defined events from a
	    testcase which will be picked up by the installed event
	    handler.</p>
          <p>
	    Own Id: OTP-10157</p>
        </item>
        <item>
          <p>
	    A new start option, release_shell, for ct:run_test/1, has
	    been added, which makes Common Test release the shell
	    process after the test suite compilation phase is
	    finished. For details, see the Running Tests chapter in
	    the User's Guide.</p>
          <p>
	    Own Id: OTP-10248 Aux Id: OTP-10127 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.6.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Common Test adds the test suite directories to the code
	    path before executing the tests. These directories should
	    also be removed from the code path at the end of the test
	    run, which, prior to this fix, was not performed.</p>
          <p>
	    Own Id: OTP-9595</p>
        </item>
        <item>
          <p>
	    An entry is now created in the index.html file (i.e. the
	    overview file for the test run) for each repeated test
	    during a test run. This was previously not the case. Note
	    that in the top level (logdir) index file, however, only
	    the last test result is listed. For example, given the
	    test spec:
	    [{merge_tests,false},{dirs,"test1"},{dirs,"test1"}]. In
	    the index file for the test run (under
	    Logdir/ct_run.Node.Date.Time), both tests are listed. In
	    the top level index file (under Logdir), only the last
	    test is listed (one has to find the previous results
	    through the all_runs.html file).</p>
          <p>
	    Own Id: OTP-9634 Aux Id: seq11924 </p>
        </item>
        <item>
          <p>
	    After a test case timeout or abortion, the
	    end_per_testcase function executes on a new dedicated
	    process. The group leader for this process should be set
	    to the IO server for the test case, which was not done
	    properly. The result of this error was that no warnings
	    about end_per_testcase failing or timing out were ever
	    printed in the test case log. Also, help functions such
	    as e.g. test_server:stop_node/1, attempting to
	    synchronize with the IO server, would hang. The fault has
	    been corrected.</p>
          <p>
	    Own Id: OTP-9666</p>
        </item>
        <item>
          <p>
	    The ct:get_status/0 function would cause the calling
	    process to receive 'DOWN' messages if no tests were
	    running at the time of the call. This bug has been fixed.</p>
          <p>
	    Own Id: OTP-9830 Aux Id: seq11975 </p>
        </item>
        <item>
          <p>
	    A deadlock situation could occur if Common Test is
	    forwarding error_handler printouts to Test Server at the
	    same time a new test case is starting. This error has
	    been fixed.</p>
          <p>
	    Own Id: OTP-9894</p>
        </item>
        <item>
          <p>
	    A link to the ct_run program is now created, as expected,
	    in the installation bin directory (default
	    /usr/local/bin) during 'make install'.</p>
          <p>
	    Own Id: OTP-9898</p>
        </item>
        <item>
          <p>
	    Using the repeat, duration or until option with
	    ct:run_test/1, would cause an infinite loop. This has
	    been fixed.</p>
          <p>
	    Own Id: OTP-9899</p>
        </item>
        <item>
          <p>
	    Two or more test cases executing in parallel and printing
	    to screen at the same time with ct:pal/2/3 or
	    ct:print/2/3 could write into each other's "slots" and
	    create a mess of mixed strings. In order to avoid this,
	    only a single IO message is now ever sent per printout
	    call.</p>
          <p>
	    Own Id: OTP-9900 Aux Id: OTP-9904 </p>
        </item>
        <item>
          <p>
	    When a test case was killed because of a timetrap
	    timeout, the current location (suite, case and line) was
	    not printed correctly in the log files. This has been
	    corrected.</p>
          <p>
	    Own Id: OTP-9930 Aux Id: seq12002 </p>
        </item>
        <item>
          <p>
	    The wrong exit location was printed in the log file when
	    ct:fail/1 or ct_fail/2 was called.</p>
          <p>
	    Own Id: OTP-9933 Aux Id: seq12002 </p>
        </item>
        <item>
          <p>
	    Test Server and Common Test would add new error handlers
	    with each test run and fail to remove previously added
	    ones. In the case of Test Server, this would only happen
	    if SASL was not running on the test node. This has been
	    fixed.</p>
          <p>
	    Own Id: OTP-9941 Aux Id: seq12009 </p>
        </item>
        <item>
          <p>
	    If a test case process was terminated due to an exit
	    signal from a linked process, Test Server failed to
	    report the correct name of the suite and case to the
	    framework. This has been corrected.</p>
          <p>
	    Own Id: OTP-9958 Aux Id: OTP-9855 </p>
        </item>
        <item>
          <p>
	    When starting a test with ct_run and adding a directory
	    to the code path using -pa or -pz (preceding -erl_args),
	    Common Test would delete any existing directory in the
	    code path with the same base name (see
	    filename:basename/1) as the directory being added. This
	    has been fixed.</p>
          <p>
	    Own Id: OTP-9964</p>
        </item>
        <item>
          <p>
	    If passing two or more directories with the same base
	    name (see filename:basename/1) to Common Test with ct_run
	    -pa, only one of the directories would actually be added.</p>
          <p>
	    Own Id: OTP-9975 Aux Id: seq12019 </p>
        </item>
        <item>
          <p>
	    Configuration data required by the group info function
	    was deleted before the call to post_end_per_group, which
	    made it impossible for the hook function to read and use
	    the data in question. This has been fixed.</p>
          <p>
	    Own Id: OTP-9989</p>
        </item>
        <item>
          <p>
	    Disabling built-in hooks in a test specification was
	    ignored, this has now been fixed.</p>
          <p>
	    Own Id: OTP-10009</p>
        </item>
        <item>
          <p>
	    Various typographical errors corrected in documentation
	    for common_test, driver, erl_driver and windows
	    installation instructions. (Thanks to Tuncer Ayaz)</p>
          <p>
	    Own Id: OTP-10037</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A new optional feature has been introduced that enables
	    Common Test to generate priv_dir directory names that are
	    unique for each test case or config function. The name of
	    the option/flag is 'create_priv_dir' and it can be set to
	    value 'auto_per_run' (which is the default, existing,
	    behaviour), or 'auto_per_tc' or 'manual_per_tc'. If
	    'auto_per_tc' is used, Test Server creates a dedicated
	    priv_dir automatically for each test case (which can be
	    very expensive in case of many and/or repeated cases). If
	    'manual_per_tc' is used, the user needs to create the
	    priv_dir explicitly by calling the new function
	    ct:make_priv_dir/0.</p>
          <p>
	    Own Id: OTP-9659 Aux Id: seq11930 </p>
        </item>
        <item>
          <p>
	    A column for test case group name has been added to the
	    suite overview HTML log file.</p>
          <p>
	    Own Id: OTP-9730 Aux Id: seq11952 </p>
        </item>
        <item>
          <p>
	    It is now possible to use the post_end_per_testcase CT
	    hook function to print a comment for a test case in the
	    overview log file, even if the test case gets killed by a
	    timetrap or unknown exit signal, or if the
	    end_per_testcase function times out.</p>
          <p>
	    Own Id: OTP-9855 Aux Id: seq11979 </p>
        </item>
        <item>
          <p>
	    The pre- and post CT hook functions are now always called
	    for all configuration functions, even for configuration
	    functions that are not implemented in the test suite.</p>
          <p>
	    Own Id: OTP-9880 Aux Id: seq11993 </p>
        </item>
        <item>
          <p>
	    Common Test will now print error information (with a time
	    stamp) in the test case log file immediately when a test
	    case fails. This makes it easier to see when, in time,
	    the fault actually occured, and aid the job of locating
	    relevant trace and debug printouts in the log.</p>
          <p>
	    Own Id: OTP-9904 Aux Id: seq11985, OTP-9900 </p>
        </item>
        <item>
          <p>
	    Test Server has been modified to check the SASL
	    errlog_type parameter when receiving an error logger
	    event, so that it doesn't print reports of type that the
	    user has disabled.</p>
          <p>
	    Own Id: OTP-9955 Aux Id: seq12013 </p>
        </item>
        <item>
          <p>
	    The test specification term 'skip_groups' was implemented
	    in Common Test v1.6. It was never documented however,
	    which has now been attended to. Please see the Test
	    Specifications chapter in the User's Guide for
	    information.</p>
          <p>
	    Own Id: OTP-9972</p>
        </item>
        <item>
          <p>
	    The Common Test Master has been updated to use a CSS
	    style sheet for the html log files.</p>
          <p>
	    Own Id: OTP-9973</p>
        </item>
        <item>
          <p>
	    If the init_per_group/2 and end_per_group/2 functions are
	    not implemented in the test suite, Common Test calls it's
	    own local init- and end functions - previously named
	    ct_init_per_group/2 and ct_end_per_group/2 - when a group
	    is executed. These functions have been renamed
	    init_per_group/2 and end_per_group/2 respectively. Note
	    that this may affect any user event handler identifying
	    events by the old names.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9986 Aux Id: OTP-9992 </p>
        </item>
        <item>
          <p>
	    By specifying a user defined function ({M,F,A} or fun) as
	    timetrap value, either by means of an info function or by
	    calling ct:timetrap/1, it is now possible to set a
	    timetrap that will be triggered when the user function
	    returns.</p>
          <p>
	    Own Id: OTP-9988 Aux Id: OTP-9501, seq11894 </p>
        </item>
        <item>
          <p>
	    If the optional configuration functions init_per_suite/1
	    and end_per_suite/1 are not implemented in the test
	    suite, local Common Test versions of these functions are
	    called instead, and will be displayed in the overview log
	    file. Any printouts made by the pre- or
	    post_init_per_suite and pre- or post_end_per_suite hook
	    functions are saved in the log files for these functions.</p>
          <p>
	    Own Id: OTP-9992</p>
        </item>
        <item>
          <p>
	    A hook has been added to common test which outputs
	    surefire XML for usage together with CI tools such as
	    Jenkins. To enable the hook pass '-ct_hooks cth_surefire'
	    to ct_run. See the CTH documentation for more details.</p>
          <p>
	    Own Id: OTP-9995</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.6</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A Getting Started chapter has been added to the Common
	    Test User's Guide.</p>
          <p>
	    Own Id: OTP-9156</p>
        </item>
        <item>
          <p>
	    The test case group info function has been implemented in
	    Common Test. Before execution of a test case group, a
	    call is now made to <c>TestSuite:group(GroupName)</c>.
	    The function returns a list of test properties, e.g. to
	    specify timetrap values, require configuration data, etc
	    (analogue to the test suite- and test case info
	    function). The scope of the properties set by
	    <c>group(GroupName)</c> is all test cases and sub-groups
	    of group <c>GroupName</c>.</p>
          <p>
	    Own Id: OTP-9235</p>
        </item>
        <item>
          <p>
	    Common Test hooks are now in a final supported version.
	    The Common Test hooks allow you to abstract out
	    initialization behaviour that is common to multiple test
	    suites into one place and also extend the behaviour of a
	    suite without changing the suite itself. For more
	    information see the Common Test user's guide.</p>
          <p>
	    Own Id: OTP-9449</p>
        </item>
        <item>
          <p>
	    A new built-in common test hook has been added which
	    captures error_logger and SASL event and prints them in
	    the testcase log. To disable this (and any other built-in
	    hooks) pass 'enable_builtin_hooks false' to common test.</p>
          <p>
	    Own Id: OTP-9543</p>
        </item>
        <item>
          <p>
	    Common Test now calls info functions also for the
	    <c>init/end_per_suite/1</c> and
	    <c>init/end_per_group/2</c> configuration functions.
	    These can be used e.g. to set timetraps and require
	    external configuration data relevant only for the
	    configuration functions in question (without affecting
	    properties set for groups and test cases in the suite).
	    The info function for <c>init/end_per_suite(Config)</c>
	    is <c>init/end_per_suite()</c>, and for
	    <c>init/end_per_group(GroupName,Config)</c> it's
	    <c>init/end_per_group(GroupName)</c>. Info functions can
	    not be used with <c>init/end_per_testcase(TestCase,
	    Config)</c>, since these configuration functions execute
	    on the test case process and will use the same properties
	    as the test case (i.e. properties set by the test case
	    info function, <c>TestCase()</c>).</p>
          <p>
	    Own Id: OTP-9569</p>
        </item>
        <item>
          <p>
	    It's now possible to read the full name of the test case
	    log file during execution. One way to do this is to
	    lookup it up as value of the key <c>tc_logfile</c> in the
	    test case <c>Config</c> list (which means it can also be
	    read by a pre- or post Common Test hook function). The
	    data is also sent with the event
	    <c>#event{name=tc_logfile,data={{Suite,Func},LogFileName}}</c>,
	    and can be read by any installed event handler.</p>
          <p>
	    Own Id: OTP-9676 Aux Id: seq11941 </p>
        </item>
        <item>
          <p>
	    The look of the HTML log files generated by Common Test
	    and Test Server has been improved (and made easier to
	    customize) by means of a CSS file.</p>
          <p>
	    Own Id: OTP-9706</p>
        </item>
        <item>
          <p>
	    Functions ct:fail(Format, Args) and ct:comment(Format,
	    Args) have been added in order to make printouts of
	    formatted error and comment strings easier (no need for
	    the user to call io_lib:format/2 explicitly).</p>
          <p>
	    Own Id: OTP-9709 Aux Id: seq11951 </p>
        </item>
        <item>
          <p>
	    The order in which ct hooks are executed for cleanup
	    hooks (i.e. *_end_per_* hooks) has been reversed.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-9774 Aux Id: seq11913 </p>
        </item>
        <item>
          <p>
	    Printouts to stdout may be captured during test case
	    execution. This is useful in order to e.g. read and parse
	    tty printouts from the SUT during test case execution (if
	    necessary, say, to determine the outcome of the test).
	    The capturing session is started with
	    <c>ct:capture_start/0</c>, and stopped with
	    <c>ct:capture_stop/0</c>. The list of buffered strings is
	    read and purged with <c>ct:capture_get/0/1</c>. It's
	    possible to filter out printouts made with
	    <c>ct:log/2/3</c> and <c>ct:pal/2/3</c> from the captured
	    list of strings. This is done by calling
	    <c>capture_get/1</c> with a list of log categories to
	    exclude.</p>
          <p>
	    Own Id: OTP-9775</p>
        </item>
        <item>
          <p>
	    The syntax for specifying test case groups in the all/0
	    list has been extended to include execution properties
	    for both groups and sub-groups. The properties specified
	    in all/0 for a group overrides the properties specified
	    in the group declaration (in groups/0). The main purpose
	    of this extension is to make it possible to run the same
	    set of tests, but with different properties, without
	    having to declare copies of the group in question. Also,
	    the same syntax may be used in test specifications in
	    order to change properties of groups at the time of
	    execution, without having to edit the test suite. Please
	    see the User's Guide for details and examples.</p>
          <p>
	    Own Id: OTP-9809 Aux Id: OTP-9235 </p>
        </item>
      </list>
    </section>


    <section><title>Known Bugs and Problems</title>
      <list>
        <item>
          <p>
	    Fix problems in CT/TS due to line numbers in exceptions.</p>
          <p>
	    Own Id: OTP-9203</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.5.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    An error in how comments are colored in the test suite
	    overview html log file has been corrected. As result, a
	    new framework callback function, format_comment/1, has
	    been introduced.</p>
          <p>
	    Own Id: OTP-9237</p>
        </item>
        <item>
          <p>
	    Automatically generated init- and end-configuration
	    functions for test case groups caused incorrect execution
	    order of test cases. This has been corrected.</p>
          <p>
	    Own Id: OTP-9369</p>
        </item>
        <item>
          <p>
	    If multiple directories were specified with the 'logdir'
	    flag/option, Common Test would crash. This has been fixed
	    so that an error is properly reported instead.</p>
          <p>
	    Own Id: OTP-9370</p>
        </item>
        <item>
          <p>
	    If ct:log/2 was called with bad arguments, this could
	    cause the Common Test IO handling process to crash. This
	    fault has been corrected.</p>
          <p>
	    Own Id: OTP-9371 Aux Id: OTP-8933 </p>
        </item>
        <item>
          <p>
	    A bug has been fixed that made Test Server call the
	    end_tc/3 framework function with an incorrect module name
	    as first argument.</p>
          <p>
	    Own Id: OTP-9379 Aux Id: seq11863 </p>
        </item>
        <item>
          <p>
	    If a timetrap timeout occured during execution of of a
	    function in a lib module (i.e. a function called directly
	    or indirectly from a test case), the Suite argument in
	    the end_tc/3 framework callback function would not
	    correctly contain the name of the test suite, but the lib
	    module. (This would only happen if the lib module was
	    compiled with ct.hrl included). This error has been
	    solved.</p>
          <p>
	    Own Id: OTP-9398</p>
        </item>
        <item>
          <p>
	    Corrections of the vts mode. It will now report errors
	    (about e.g. incorrect config files) instead of crashing
	    or hanging. Furthermore, the requirement that the test
	    directory name must have a "_test" suffix has been
	    removed. Also, a workaround has been implemented for the
	    limitation that the file browser (in many web browsers)
	    will only return the basic file name, not the full
	    directory path (which made it impossible to have config
	    files in other directories than the main test directory).</p>
          <p>
	    Own Id: OTP-9429</p>
        </item>
        <item>
          <p>
	    Add a proplist() type</p>
          <p>
	    Recently I was adding specs to an API and found that
	    there is no canonical proplist() type defined. (Thanks to
	    Ryan Zezeski)</p>
          <p>
	    Own Id: OTP-9499</p>
        </item>
        <item>
          <p>
	    It is now possible to use the 'step' flag/option to run
	    the debugger for test suites that contain test case
	    groups. This previously caused Common Test to crash. If
	    'step config' is specified, breakpoints are now also
	    automatically set on init_per_group and end_per_group.
	    Note that breakpoints are always set automatically on
	    test case functions and this is true also for grouped
	    cases.</p>
          <p>
	    Own Id: OTP-9518 Aux Id: OTP-8933 </p>
        </item>
        <item>
          <p>
	    The test index page was not refreshed at the start of
	    each test suite which made it impossible to follow test
	    execution by means of refreshing the browser window (no
	    links to follow). This has been fixed.</p>
          <p>
	    Own Id: OTP-9520 Aux Id: OTP-8933 </p>
        </item>
        <item>
          <p>
	    If a test suite would start with a test case group
	    defined without the init_per_group/2 and end_per_group/2
	    function, init_per_suite/1 would not execute initially
	    and logging of the test run would fail. This error has
	    been fixed.</p>
          <p>
	    Own Id: OTP-9584</p>
        </item>
        <item>
          <p>
	    The "Missing Suites" link from the top level index page
	    was incorrect and has been fixed.</p>
          <p>
	    Own Id: OTP-9592</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Various corrections and updates to improve the handling
	    and reporting of errors.</p>
          <p>
	    Own Id: OTP-8933</p>
        </item>
        <item>
          <p>
	    The dir and suite start option can now be used in
	    combination. E.g. executing my_SUITE in directory
	    my_tests can either be specified as "ct_run -suite
	    my_tests/my_SUITE" or as "ct_run -dir my_tests -suite
	    my_SUITE". Furthermore, the specification:
	    ct:run_test([{suite,["./my_SUITE"]},{testcase,t1}]) is
	    now interpreted as
	    ct:run_test([{suite,"./my_SUITE"},{testcase,t1}]), i.e.
	    only testcase t1 in test suite my_SUITE - not all cases -
	    will be executed.</p>
          <p>
	    Own Id: OTP-9155</p>
        </item>
        <item>
          <p>
	    A new option, 'logopts', has been introduced, to make it
	    possible to modify some aspects of the logging behaviour
	    in Common Test (or Test Server). For example, whenever an
	    io printout is made, test_server adds newline (\n) to the
	    end of the output string. This may not always be a
	    preferred action and can therefore be disabled by means
	    of "ct_run ... -logopts no_nl" (or ct:run_test([...,
	    {logopts,[no_nl]}])). A new framework callback function,
	    get_logopts/0, has been introduced (see the ct_framework
	    module for details).</p>
          <p>
	    Own Id: OTP-9372 Aux Id: OTP-9396 </p>
        </item>
        <item>
          <p>
	    A new option, 'logopts', has been introduced, to make it
	    possible to modify some aspects of the logging behaviour
	    in Common Test (or Test Server). For example, if the html
	    version of the test suite source code should not be
	    generated during the test run (and consequently be
	    unavailable in the log file system), the feature may be
	    disabled by means of "ct_run ... -logopts no_src" (or
	    ct:run_test([..., {logopts,[no_src]}])). A new framework
	    callback function, get_logopts/0, has been introduced
	    (see the ct_framework module for details).</p>
          <p>
	    Own Id: OTP-9396 Aux Id: seq11869, OTP-9372 </p>
        </item>
        <item>
          <p>
	    CT Hooks can now be assigned a priority. The priority of
	    a CTH determines when it should execute in relation to
	    other CTHs. The CTH with the lowest priority will be
	    executed first, CTHs with equal priority will be executed
	    in the order which they were installed.</p>
          <p>
	    Own Id: OTP-9445</p>
        </item>
        <item>
          <p>
	    It is now possible to use a tuple {M,F,A}, or a fun, as
	    timetrap specification in the suite info function or test
	    case info functions. The function must return a valid
	    timeout value, as documented in the common_test man page
	    and in the User's Guide.</p>
          <p>
	    Own Id: OTP-9501 Aux Id: seq11894 </p>
        </item>
        <item>
          <p>
	    A new built-in common test hook has been added which
	    captures error_logger and SASL event and prints them in
	    the testcase log. To disable this (and any other built-in
	    hooks) pass 'enable_builtin_hooks false' to common test.</p>
          <p>
	    Own Id: OTP-9543</p>
        </item>
        <item>
          <p>
	    Common Test now has the possibility to have built-in
	    hooks which are started by default when any test is run.
	    To disable built-in hooks pass 'enable_builtin_hooks
	    false' to common test. See the common test hooks
	    documentation for more details.</p>
          <p>
	    Own Id: OTP-9564</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.5.4</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    It was previously not possible to use timetrap value
	    'infinity' with ct:timetrap/1. This has been fixed.</p>
          <p>
	    Own Id: OTP-9159</p>
        </item>
        <item>
          <p>
	    The Common Test VTS mode has been updated to be able to
	    report test results of suites that include test case
	    groups (when it would previously crash).</p>
          <p>
	    Own Id: OTP-9195</p>
        </item>
        <item>
          <p>
	    Common Test now refreshes the very top level index.html
	    page at the start of each individual test in a test run,
	    so that progress of the ongoing test can be tracked by
	    following the link to its overview page.</p>
          <p>
	    Own Id: OTP-9210 Aux Id: OTP-9054 </p>
        </item>
        <item>
          <p>
	    A bug that made it impossible to cancel the previous
	    timetrap when calling ct:timetrap/1 has been corrected.</p>
          <p>
	    Own Id: OTP-9233 Aux Id: OTP-9159 </p>
        </item>
        <item>
          <p>
	    Fix bug which would make cth's to not be removed when out
	    of scope when adding a cth in suite/0 and crashing in
	    pre_init_per_suite.</p>
          <p>
	    Own Id: OTP-9264</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    It is now possible to return a tuple {fail,Reason} from
	    init_per_testcase/2. The result is that the associated
	    test case gets logged as failed without ever executing.</p>
          <p>
	    Own Id: OTP-9160 Aux Id: seq11502 </p>
        </item>
        <item>
          <p>
	    Common Test now accepts, but ignores, empty test case
	    group specifications.</p>
          <p>
	    Own Id: OTP-9161</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.5.3</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Added an option to test specs which allow the execution
	    of tests as is, instead of doing merging of tests on the
	    same "level". See the merge_tests directive the test
	    specification documentation.</p>
          <p>
	    Own Id: OTP-9026 Aux Id: seq11768 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Alpha release of Common Test Hooks (CTH). CTHs allow the
	    users of common test to abtract out common behaviours
	    from test suites in a much more elegant and flexible way
	    than was possible before. Note that the addition of this
	    feature may introduce minor changes in the undocumented
	    behaviour of the interface inbetween common_test and
	    test_server.</p>
          <p>
	    *** POTENTIAL INCOMPATIBILITY ***</p>
          <p>
	    Own Id: OTP-8851</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.5.2</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Updated ct:get_status documentation to describe
	    no_tests_running return value.</p>
          <p>
	    Own Id: OTP-8895 Aux Id: seq11701 </p>
        </item>
        <item>
          <p>
	    Fixed race condition test failures in the test suites
	    testing common test's parallel groups feature.</p>
          <p>
	    Own Id: OTP-8921</p>
        </item>
        <item>
          <p>
	    The include directive of testspecs now work when used on
	    a remote node.</p>
          <p>
	    Own Id: OTP-8935 Aux Id: seq11731 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    ct:parse_table can now handle multiline sql rows</p>
          <p>
	    Own Id: OTP-8907 Aux Id: seq11702 </p>
        </item>
        <item>
          <p>
	    The run_test executable has been renamed to the less
	    generic ct_run to better work with other applications.
	    run_test will remain until R16B at which point it will be
	    removed.</p>
          <p>
	    Own Id: OTP-8936</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.5.1</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Returning {return_group_result,failed} from end_per_group
	    in a group that is part of a sequence, did not cause the
	    proceeding cases (or groups) to get skipped. This has
	    been fixed.</p>
          <p>
	    Own Id: OTP-8753 Aux Id: seq11644 </p>
        </item>
        <item>
          <p>
	    ct:install now works as the documentation describes.</p>
          <p>
	    Own Id: OTP-8818 Aux Id: seq-11666 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Common Test has been updated to handle start options and
	    test specification terms for test case groups (and test
	    cases in groups). Also, an option named 'label', has been
	    added that associates the test run with a name that
	    Common Test prints in the overview HTML logs.</p>
          <p>
	    Own Id: OTP-8725 Aux Id: OTP-8727 </p>
        </item>
        <item>
          <p>
	    Andrey Pampukha has been added to the AUTHORS file. Thank
	    you Andrey for your work on configuration data handling,
	    Large Scale Testing improvements, and other useful
	    updates and fixes.</p>
          <p>
	    Own Id: OTP-8803</p>
        </item>
        <item>
          <p>
	    The Configuration Data chapter in the User's Guide has
	    been updated.</p>
          <p>
	    Own Id: OTP-8804</p>
        </item>
        <item>
          <p>
	    Milliseconds are now included in timestamps in Common
	    Test log entries. (Thanks to Tomas Johansson.)</p>
          <p>
	    Own Id: OTP-8808</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    Process calls using monitors in Common Test would not
	    clear the inbox of remaining DOWN messages. This has been
	    fixed.</p>
          <p>
	    Own Id: OTP-8621 Aux Id: seq11560 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    It is now possible for the user to provide specific
	    callback modules that handle test configuration data, so
	    that data on arbitray form can be accessed (e.g. by
	    reading files or by communicating with a configuration
	    server process). Two default callback modules have been
	    introduced in Common Test: ct_config_plain and
	    ct_config_xml. The former is used to handle the
	    traditional Common Test configuration files (with terms
	    on key-value tuple form) and the latter to handle
	    configuration data on XML representation.</p>
          <p>
	    Own Id: OTP-8485</p>
        </item>
        <item>
          <p>
	    It is now possible to execute test suites that are not
	    necessarily available on the local file system, but have
	    been loaded on the test node in advance (e.g. sent as
	    binaries from a remote node and loaded by RPC). A
	    requirement is that the no_auto_compile (or
	    {auto_compile,false}) parameter has been set.</p>
          <p>
	    Own Id: OTP-8490 Aux Id: seq11500 </p>
        </item>
        <item>
          <p>
	    Test Server will now call the end_per_testcase/2 function
	    even if the test case has been terminated explicitly
	    (with abort_current_testcase/1), or after a timetrap
	    timeout. Under these circumstances the return value of
	    end_per_testcase is completely ignored. Therefore the
	    function will not be able to change the reason for test
	    case termination by returning {fail,Reason}, nor will it
	    be able to save data with {save_config,Data}.</p>
          <p>
	    Own Id: OTP-8500 Aux Id: seq11521 </p>
        </item>
        <item>
          <p>
	    It is now possible to use the test specification term
	    'init' to start Common Test nodes automatically, as well
	    as have initial function calls evaluated on the nodes. A
	    default callback module for the 'init' term, ct_slave,
	    has been introduced to enable Common Test Master to
	    perform host login and node startup operations over ssh.</p>
          <p>
	    Own Id: OTP-8570</p>
        </item>
        <item>
          <p>
	    The run_test script has been replaced by a program (with
	    the same name) which can be executed without explicit
	    installation. The start flags are the same as for the
	    legacy start script.</p>
          <p>
	    Own Id: OTP-8650</p>
        </item>
        <item>
          <p>
	    Previously, a repeat property of a test case group
	    specified the number of times the group should be
	    repeated after the main test run. I.e. {repeat,N} would
	    case the group to execute 1+N times. To be consistent
	    with the behaviour of the run_test repeat option, this
	    has been changed. N now specifies the absolute number of
	    executions instead.</p>
          <p>
	    Own Id: OTP-8689 Aux Id: seq11502 </p>
        </item>
        <item>
          <p>
	    With the run_test -erl_args option, it's possible to
	    divide the options on the run_test command line into ones
	    that Common Test should process (those preceding
	    -erl_args, and ones it should ignore (those succeeding
	    -erl_args). Options preceding -erl_args that Common Test
	    doesn't recognize are also ignored (i.e. the same
	    behaviour as earlier versions of Common Test).</p>
          <p>
	    Own Id: OTP-8690 Aux Id: OTP-8650 </p>
        </item>
        <item>
          <p>
	    Directories added with -pa or -pz in the pre-erl_args
	    part of the run_test command line will be converted from
	    relative to absolute, this to avoid problems loading user
	    modules when Common Test switches working directory
	    during the test run.</p>
          <p>
	    Own Id: OTP-8691 Aux Id: OTP-8650 </p>
        </item>
        <item>
          <p>
	    The timetrap handling has been made more user
	    controllable by means of new start options and new ct
	    interface functions. With the 'multiply_timetraps' start
	    option, it's possible to specify a value which all
	    timetrap timeout values get multiplied by. This is useful
	    e.g. to extend the timetraps temporarily while running
	    cover or trace. The 'scale_timetraps' start option
	    switches on or off the Test Server timetrap scaling
	    feature (which tries to detect if the tests may benefit
	    from extended timetraps, e.g. due to running certain test
	    tools, and performs the scaling automatically).
	    Furthermore, the ct:timetrap/1 function has been
	    introduced, which makes it possible to set/reset
	    timetraps during test execution. Also, a ct:sleep/1
	    function is now available, which takes the timetrap
	    parameters into account when calculating the time to
	    suspend the process.</p>
          <p>
	    Own Id: OTP-8693</p>
        </item>
        <item>
          <p>
	    A new run_test start option, event_handler_init, has been
	    added that takes a start argument which gets passed to
	    the init function of the event handler.</p>
          <p>
	    Own Id: OTP-8694</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.4.7</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The auto compilation feature of Common Test did not
	    recognize if a header file included in a test suite was
	    modified (if the dir start flag/option was used). This
	    has been fixed.</p>
          <p>
	    Own Id: OTP-8396 Aux Id: seq11488, OTP-8311 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The tc_status value in the Config list for a test case
	    that has failed because of a timetrap timeout, has
	    changed from {tc_status,timeout} to
	    {tc_status,timetrap_timeout}.</p>
          <p>
	    Own Id: OTP-8302</p>
        </item>
        <item>
	    <p>The documentation is now possible to build in an open
	    source environment after a number of bugs are fixed and
	    some features are added in the documentation build
	    process. </p>
	    <p>- The arity calculation is updated.</p>
	    <p>- The module prefix used in the function names for
	    bif's are removed in the generated links so the links
	    will look like
	    "http://www.erlang.org/doc/man/erlang.html#append_element-2"
	    instead of
	    "http://www.erlang.org/doc/man/erlang.html#erlang:append_element-2".</p>
	    <p>- Enhanced the menu positioning in the html
	    documentation when a new page is loaded.</p>
	    <p>- A number of corrections in the generation of man
	    pages (thanks to Sergei Golovan)</p>
	    <p>- The legal notice is taken from the xml book file so
	    OTP's build process can be used for non OTP
	    applications.</p>
          <p>
	    Own Id: OTP-8343</p>
        </item>
        <item>
          <p>
	    It is now possible to include the <c>ct.hrl</c> using the
	    -include_lib directive. (Thanks to Fred Hebert.)</p>
          <p>
	    Own Id: OTP-8379</p>
        </item>
        <item>
          <p>
	    The telnet client in Common Test sent [IAC,DO,NOP] to the
	    server in attempt to keep the connection alive. This is
	    not a valid sequence according to the standard, and some
	    telnet servers would terminate the connection because of
	    it. The client has been changed to send [IAC,NOP] every
	    10 secs instead, which should be a valid sequence. The
	    client does not negotiate this type of "keep alive"
	    message with the server, and if it causes problems, the
	    user may disable the keep alive feature by adding
	    {keep_alive,false} to the telnet configuration data for
	    the server/connection. Please see the ct_telnet and
	    unix_telnet manual pages for details.</p>
          <p>
	    Own Id: OTP-8450 Aux Id: OTP-8311 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.4.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    If the init_per_testcase/2 function fails, the test case
	    now gets marked and counted as auto skipped, not user
	    skipped (which would previously happen).</p>
          <p>
	    Own Id: OTP-8289</p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The documentation is now built with open source tools
	    (xsltproc and fop) that exists on most platforms. One
	    visible change is that the frames are removed.</p>
          <p>
	    Own Id: OTP-8201</p>
        </item>
        <item>
          <p>
	    For a failed test case, the tc_done event is supposed to
	    report info on the form {failed,Error}. Only Error was
	    reported, however, which has now been fixed.</p>
          <p>
	    Own Id: OTP-8235 Aux Id: seq-11414 </p>
        </item>
        <item>
          <p>
	    It is now possible to fail a test case from the
	    end_per_testcase/2 function, by returning {fail,Reason}.</p>
          <p>
	    Own Id: OTP-8284</p>
        </item>
        <item>
          <p>
	    It is now possible to fail a test case by having the
	    end_tc/3 framework function return {fail,Reason} for the
	    test case.</p>
          <p>
	    Own Id: OTP-8285</p>
        </item>
        <item>
          <p>
	    The test_server framework API (e.g. the end_tc/3
	    function) has been modified. See the test_server_ctrl
	    documentation for details.</p>
          <p>
	    Own Id: OTP-8286 Aux Id: OTP-8285, OTP-8287 </p>
        </item>
        <item>
          <p>
	    Various updates of the test events have been implemented.
	    The data field for some events, such as tc_done and
	    tc_auto_skip has been modified to make pattern matching
	    on the data easier and more consistent. Also the order in
	    which some events are received has been altered. E.g. the
	    tc_auto_skip event for a test case now comes after the
	    tc_done for the failed configuration function (not
	    before) which makes more sense. Note that no new events
	    have been added and that the event record remains
	    unchanged.</p>
          <p>
	    Own Id: OTP-8287 Aux Id: OTP-8235 </p>
        </item>
        <item>
          <p>
	    The marquee used for test names on the all_runs.html page
	    has been removed on request. Note that the test name
	    field has the full text string in a title tag, which is
	    displayed when hovering the mouse pointer over it (i.e.
	    if the web browser supports title tags).</p>
          <p>
	    Own Id: OTP-8288</p>
        </item>
        <item>
          <p>
	    It is now possible to refresh the top level index files
	    in an arbitrary log directory by specifying a
	    {refresh_logs,LogDir} tuple in the ct:run_test/1 options
	    list. Also the -refresh_logs flag for the run_test script
	    has been extended to take an optional LogDir argument,
	    i.e. -refresh_logs [LogDir]. If no LogDir is specified,
	    current working directory is assumed, unless the log
	    directory is set with the -logdir flag.</p>
          <p>
	    Own Id: OTP-8290</p>
        </item>
        <item>
          <p>
	    It was previously required that test suites were located
	    under a test object (or OTP application) sub-directory
	    named "test" (or under a directory named
	    "&lt;testobject&gt;_test"). This has been changed so that
	    Common Test now looks for suites primarily in a test
	    sub-directory only if the directory exists. Otherwise it
	    will assume the suites are stored in the same directory
	    the user specifies with e.g. the 'dir' start flag/option.</p>
          <p>
	    Own Id: OTP-8294</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.4.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
	    The Common Test logger process crashed if a test case in
	    a sequence (declared with sequences/0) failed. This fault
	    has been corrected.</p>
          <p>
	    Own Id: OTP-8089 Aux Id: seq11334 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Various updates and fixes in Common Test and Test Server.</p>
          <p>
	    Own Id: OTP-8045 Aux Id: OTP-8089,OTP-8105,OTP-8163 </p>
        </item>
        <item>
          <p>
	    Errors in coverage data collection and analysis were
	    difficult to detect. The logging has been improved so
	    that more information about e.g. imported and missing
	    modules is printed to the html log files.</p>
          <p>
	    Own Id: OTP-8163 Aux Id: seq11374 </p>
        </item>
        <item>
          <p>
	    The Common Test HTML overview pages have been improved.
	    It is now possible to see if a test case has been skipped
	    explicitly or because a configuration function has
	    failed. Also, the history page (all_runs.html) now has
	    scrolling text displaying the test names. The old format
	    (showing names as a truncated string) can still be
	    generated by means of the flag/option 'basic_html'.</p>
          <p>
	    Own Id: OTP-8177</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.4.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Various corrections and improvements of Common Test and
	    Test Server.</p>
          <p>
	    Own Id: OTP-7981</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.4.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Minor updates and corrections.</p>
          <p>
	    Own Id: OTP-7897</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    A support client module for SSH and SFTP, ct_ssh, has
	    been introduced in Common Test.</p>
          <p>
	    Own Id: OTP-7838</p>
        </item>
        <item>
          <p>
	    Test case groups have been introduced. With this feature
	    it's possible to execute groups (possibly nested) of test
	    cases, each group wrapped with a call to function
	    init_per_group/2 and end_per_group/2. Group definitions
	    are done by means of the new call-back function groups/0,
	    which should return a list of definitions. A group
	    definition contains a name tag, a list of properties and
	    a list of test cases (including possible nested group
	    definitions). The properties make it possible to execute
	    test cases in parallel, in sequence and in shuffled
	    order. It is also possible to repeat test cases according
	    to different criterias. The properties can be combined,
	    making it possible to e.g. repeat a conf case a certain
	    number of times and execute the test cases in different
	    (random) order every time. Available properties are:
	    parallel, sequence, shuffle, repeat, repeat_until_all_ok,
	    repeat_until_any_ok, repeat_until_any_fail and
	    repeat_until_all_fail. Please see the Common Test User's
	    Guide for details.</p>
          <p>
	    Own Id: OTP-7839 Aux Id: OTP-7511 </p>
        </item>
        <item>
          <p>
	    It is now possible to use DES3 encrypted configuration
	    files with Common Test.</p>
          <p>
	    Own Id: OTP-7842 Aux Id: OTP-7838 </p>
        </item>
        <item>
          <p>
	    In previous versions of Common Test, only one FTP
	    connection could be opened per configuration target name.
	    This has been updated so that multiple connections may be
	    opened. The possibility to use named connections is still
	    supported.</p>
          <p>
	    Own Id: OTP-7853 Aux Id: OTP-7838 </p>
        </item>
        <item>
          <p>
	    The Erlang mode for Emacs has been updated with new and
	    modified skeletons for Common Test and TS. Syntax for
	    test case groups in Common Test (and conf cases with
	    properties in TS) has been added and a new minimal Common
	    Test suite skeleton has been introduced.</p>
          <p>
	    Own Id: OTP-7856</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.3.6</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            When running a test which includes all suites in a test
            directory, if the auto compilation would fail for one
            suite, all following suites would be excluded from the
            test. This was an unwanted behaviour and has been
            corrected. Now all suites will always be compiled and
            only the failing ones excluded from the test (and logged
            as missing).</p>
          <p>
            Own Id: OTP-7750 Aux Id: OTP-7803 </p>
        </item>
        <item>
          <p>
            The step functionality in Common Test (based on
            interaction with Debugger) was broken. This has been
            fixed, and some new step features have also been added.
            Please see the Common Test User's Guide for details.</p>
          <p>
            Own Id: OTP-7800 Aux Id: seq11106 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            It is now possible for the user to specify include
            directories that Common Test will pass along to the
            compiler when suite and help modules are being compiled
            (which Common Test performs automatically before running
            tests).</p>
          <p>
            Own Id: OTP-7803 Aux Id: OTP-7750 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.3.5</title>

    <section><title>Fixed Bugs and Malfunctions</title>
      <list>
        <item>
          <p>
            If the Erlang runtime system was started without access
            to an erlang shell (e.g. -noshell), compilation errors
            would cause a crash in the Common Test application.
            Without access to a shell, Common Test can not prompt the
            user to choose to continue or abort the test session, but
            must assume that the session should proceed.</p>
          <p>
            Own Id: OTP-7749 Aux Id: seq11175, seq11180 </p>
        </item>
      </list>
    </section>


    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
            It is now possible for the Common Test user to disable
            the auto-compile feature. This is done by specifying the
            run_test flag -no_auto_compile, or the ct:run_test/1
            option {auto_compile,false}.</p>
          <p>
            Own Id: OTP-7663</p>
        </item>
        <item>
          <p>
            A new function, ct:get_config/3, has been added to Common
            Test that makes it possible to - if a particular config
            variable has been defined in multiple config files -
            return all matching values for the variable. The order of
            the elements in the returned list is the same as the
            specified order of the config files.</p>
          <p>
            Own Id: OTP-7758 Aux Id: seq11158 </p>
        </item>
        <item>
          <p>
            Because a telnet connection was always identified by a
            config variable alias, it was impossible to open multiple
            connections using the same telnet host data entry in the
            config file. This limitation has been removed by making
            it possible to associate a connection with handle value
            only (i.e. multiple connections may be opened using the
            same config variable). See ct_telnet:open/4 for details.</p>
          <p>
            Own Id: OTP-7781</p>
        </item>
        <item>
          <p>
            A new syntax for defining default config data values has
            been introduced. In previous versions of Common Test, to
            define and access a default value for a config variable
            (in the suite info- or test case info function), an alias
            name had to be used. With the new syntax you may define
            default values without reference to aliases, like this:
            {default_config,VarName,DefaultValue}. Please see the
            User's Guide for more info.</p>
          <p>
            Own Id: OTP-7782</p>
        </item>
        <item>
          <p>
            In previous versions of Common Test, whenever a config
            variable got associated with a name (by means of a
            require statement), the config variable name was replaced
            with the new name. This introduced unwanted dependencies
            between test cases (e.g. if one test case would introduce
            a new name, the following test cases could no longer
            access the config data by means of the original
            variable). This functionality has now been updated so
            that when new names are introduced with require, they
            become aliases (references) instead of replacements.
            Hence, config data elements can always, at any time, be
            accessed by means of the original config variable names.</p>
          <p>
            Own Id: OTP-7783</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.3.4</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Common Test now uses the re application instead of the
	    previous rx driver to perform regular expression matching
	    on telnet strings. Since re works on all supported
	    operating systems, it is now possible to run telnet
	    sessions also on platforms such as e.g. Windows (which
	    was not the case with the previous rx driver). Note that
	    the rx driver is obsolete from now on, and will be
	    removed from Common Test after OTP R12B.</p>
          <p>
	    Own Id: OTP-7528</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.3.3</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    Various updates and improvements, plus some minor bug
	    fixes, have been implemented in Common Test and Test
	    Server.</p>
          <p>
	    Own Id: OTP-7112</p>
        </item>
        <item>
          <p>
	    It is now possible, by means of the new function
	    ct:abort_current_testcase/1 or
	    test_server_ctrl:abort_current_testcase/1, to abort the
	    currently executing test case.</p>
          <p>
	    Own Id: OTP-7518 Aux Id: OTP-7112 </p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.3.2</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The configure test of the rx lib in Common Test was not
	    performed during the general OTP application
	    configuration phase. This made e.g. autoconf impossible.
	    This has been changed to correspond with the normal OTP
	    build procedure.</p>
          <p>
	    Own Id: OTP-7379</p>
        </item>
      </list>
    </section>

</section>

<section><title>Common_Test 1.3.1</title>

    <section><title>Improvements and New Features</title>
      <list>
        <item>
          <p>
	    The rx library, included with common_test, failed to
	    build on on some architectures because the -fPIC compiler
	    option was missing.</p>
          <p>
	    Own Id: OTP-7111</p>
        </item>
      </list>
    </section>

</section>

  <section><title>common_test 1.3.0</title>
  </section>
</chapter>