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authorSiri Hansen <[email protected]>2012-11-27 18:41:30 +0100
committerSiri Hansen <[email protected]>2012-12-04 11:35:51 +0100
commita6142c21052ab16c080314aa05d1a30e6631a64c (patch)
tree2e33ec8dd2ed409c0536a7bc1560209dc362b74c
parenta71ec754bb995f72f0c7fa244ceb21383d717cfc (diff)
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[test_server] Update documentation about cross cover
Add info about cross statement in cover file: {cross,[{Tag,Modules}]}. Add parameter Tests = [{Tag,Dir}] to test_server_ctrl:cross_cover_analyse
-rw-r--r--lib/test_server/doc/src/test_server_ctrl.xml93
-rw-r--r--lib/test_server/doc/src/ts.xml4
2 files changed, 74 insertions, 23 deletions
diff --git a/lib/test_server/doc/src/test_server_ctrl.xml b/lib/test_server/doc/src/test_server_ctrl.xml
index 41bc0bcc75..af96f1fe7e 100644
--- a/lib/test_server/doc/src/test_server_ctrl.xml
+++ b/lib/test_server/doc/src/test_server_ctrl.xml
@@ -427,11 +427,21 @@ Optional, if not given the test server controller node
<p>A <c>CoverFile</c> can have the following entries:</p>
<code type="none">
{exclude, all | ExcludeModuleList}.
-{include, IncludeModuleList}. </code>
+{include, IncludeModuleList}.
+{cross, CrossCoverInfo}.</code>
<p>Note that each line must end with a full
stop. <c>ExcludeModuleList</c> and <c>IncludeModuleList</c>
are lists of atoms, where each atom is a module name.
</p>
+
+ <p><c>CrossCoverInfo</c> is used when collecting cover data
+ over multiple tests. Modules listed here are compiled, but
+ they will not be analysed when the test is finished. See
+ <seealso
+ marker="#cross_cover_analyse-2">cross_cover_analyse/2</seealso>
+ for more information about the cross cover mechanism and the
+ format of <c>CrossCoverInfo</c>.
+ </p>
<p>If both an <c>Application</c> and a <c>CoverFile</c> is
given, all modules in the application are cover compiled,
except for the modules listed in <c>ExcludeModuleList</c>. The
@@ -467,30 +477,71 @@ Optional, if not given the test server controller node
</desc>
</func>
<func>
- <name>cross_cover_analyse(Level) -> ok</name>
- <fsummary>Analyse cover data collected from all tests</fsummary>
+ <name>cross_cover_analyse(Level, Tests) -> ok</name>
+ <fsummary>Analyse cover data collected from multiple tests</fsummary>
<type>
<v>Level = details | overview</v>
+ <v>Tests = [{Tag,LogDir}]</v>
+ <v>Tag = atom()</v>
+ <d>Test identifier.</d>
+ <v>LogDir = string()</v>
+ <d>Log directory for the test identified by <c>Tag</c>. This
+ can either be the <c>run.&lt;timestamp&gt;</c> directory or
+ the parent directory of this (in which case the latest
+ <c>run.&lt;timestamp&gt;</c> directory is chosen.</d>
</type>
<desc>
- <p>Analyse cover data collected from all tests. The modules
- analysed are the ones listed in the cross cover file
- <c>cross.cover</c> in the current directory of the test
- server.</p>
- <p>The modules listed in the <c>cross.cover</c> file are
- modules that are heavily used by other applications than the
- one they belong to. This function should be run after all
- tests are completed, and the result will be stored in a file
- called cross_cover.html in the run.&lt;timestamp&gt;
- directory of the application the modules belong to.
- </p>
- <p>The <c>cross.cover</c> file contains elements like this:</p>
- <pre>
-{App,Modules}. </pre>
- <p>where <c>App</c> can be an application name or the atom
- <c>all</c>. The application (or all applications) will cover
- compile the listed <c>Modules</c>.
- </p>
+ <p>Analyse cover data collected from multiple tests. The modules
+ analysed are the ones listed in <c>cross</c> statements in
+ the cover files. These are modules that are heavily used by
+ other tests than the one where they belong or are explicitly
+ tested. They should then be listed as cross modules in the
+ cover file for the test where they are used but do not
+ belong. Se example below.</p>
+ <p>This function should be run after all tests are completed,
+ and the result will be stored in a file called
+ <c>cross_cover.html</c> in the <c>run.&lt;timestamp&gt;</c>
+ directory of the test the modules belong to.</p>
+ <p>Note that the function can be executed on any node, and it
+ does not require <c>test_server_ctrl</c> to be started first.</p>
+ <p>The <c>cross</c> statement in the cover file must be like this:</p>
+ <code type="none">
+{cross,[{Tag,Modules}]}.</code>
+ <p>where <c>Tag</c> is the same as <c>Tag</c> in the
+ <c>Tests</c> parameter to this function and <c>Modules</c> is a
+ list of module names (atoms).</p>
+ <p><em>Example:</em></p>
+ <p>If the module <c>m1</c> belongs to system <c>s1</c> but is
+ heavily used also in the tests for another system <c>s2</c>,
+ then the cover files for the two systems' tests could be like
+ this:</p>
+<code type="none">
+s1.cover:
+ {include,[m1]}.
+
+s2.cover:
+ {include,[....]}. % modules belonging to system s2
+ {cross,[{s1,[m1]}]}.</code>
+ <p>When the tests for both <c>s1</c> and <c>s2</c> are completed, run</p>
+<code type="none">
+test_server_ctrl:cross_cover_analyse(Level,[{s1,S1LogDir},{s2,S2LogDir}])
+</code>
+
+ <p>and the accumulated cover data for <c>m1</c> will be written to
+ <c>S1LogDir/[run.&lt;timestamp&gt;/]cross_cover.html</c>.</p>
+ <p>Note that the <c>m1</c> module will also be presented in the
+ normal coverage log for <c>s1</c> (due to the include statement in
+ <c>s1.cover</c>), but that only includes the coverage achieved by the
+ <c>s1</c> test itself.</p>
+ <p>The Tag in the <c>cross</c> statement in the cover file has
+ no other purpose than mapping the list of modules
+ (<c>[m1]</c> in the example above) to the correct log
+ directory where it should be included in the
+ <c>cross_cover.html</c> file (<c>S1LogDir</c> in the example
+ above). I.e. the value of <c>Tag</c> has no meaning, it
+ could be <c>foo</c> as well as <c>s1</c> above, as long as
+ the same <c>Tag</c> is used in the cover file and in the
+ call to this function.</p>
</desc>
</func>
<func>
diff --git a/lib/test_server/doc/src/ts.xml b/lib/test_server/doc/src/ts.xml
index 4a2c536e96..82ba3a5017 100644
--- a/lib/test_server/doc/src/ts.xml
+++ b/lib/test_server/doc/src/ts.xml
@@ -5,7 +5,7 @@
<header>
<copyright>
<year>2007</year>
- <year>2011</year>
+ <year>2012</year>
<holder>Ericsson AB, All Rights Reserved</holder>
</copyright>
<legalnotice>
@@ -450,7 +450,7 @@ This option is mandatory for remote targets
<desc>
<p>Analyse cover data collected from all tests.
</p>
- <p>See test_server_ctrl:cross_cover_analyse/1
+ <p>See test_server_ctrl:cross_cover_analyse/2
</p>
</desc>
</func>