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Diffstat (limited to 'lib/common_test/doc/src/ct_master_chapter.xml')
| -rw-r--r-- | lib/common_test/doc/src/ct_master_chapter.xml | 49 |
1 files changed, 33 insertions, 16 deletions
diff --git a/lib/common_test/doc/src/ct_master_chapter.xml b/lib/common_test/doc/src/ct_master_chapter.xml index 1622b5b29c..4ab891edee 100644 --- a/lib/common_test/doc/src/ct_master_chapter.xml +++ b/lib/common_test/doc/src/ct_master_chapter.xml @@ -102,7 +102,7 @@ <p><c>ct_master:abort()</c> (stop all) or <c>ct_master:abort(Nodes)</c></p> <p>For detailed information about the <c>ct_master</c> API, please see the - manual page for this module.</p> + <seealso marker="ct_master">manual page</seealso> for this module.</p> </section> <section> <title>Test Specifications</title> @@ -197,32 +197,49 @@ <section> <title>Automatic startup of the test target nodes</title> <marker id="ct_slave"></marker> - <p>Is is possible to start nodes acting like a test targets automatically - using a new term in the test specification, <c>node_start</c>:</p> + <p>Is is possible to perform initial actions on test target nodes + automatically using a new term in the test specification, <c>init</c>.</p> + <p>Currently, two sub-terms are supported, <c>node_start</c> and <c>eval</c>.</p> <pre> {node, node1, node1@host1}. {node, node2, node1@host2}. {node, node3, node2@host2}. - {node_start, node1, [{callback_module, my_slave_callback}]}. - {node_start, [node2, node3], [{username, "ct_user"}, {password, "ct_password"}]}. + {node, node4, node1@host3}. + {init, node1, [{node_start, [{callback_module, my_slave_callback}]}]}. + {init, [node2, node3], {node_start, [{username, "ct_user"}, {password, "ct_password"}]}}. + {init, node4, {eval, {module, function, []}}}. </pre> <p>This test specification declares that <c>node1@host1</c> is to be started using user's callback <c>my_slave_callback</c> with no parameters, and nodes <c>node1@host2</c> and <c>node2@host2</c> will be started with the default callback module <c>ct_slave</c>, - using the given user name and password to log into remote host <c>host2</c>.</p> - <p>Default <seealso marker="ct_slave">ct_slave</seealso> callback module delivered with the Common Test has the following features: + using the given user name and password to log into remote host <c>host2</c>. + Also, there will be function module:function/0 evaluated on the + <c>node1@host3</c>, and result of this call will be printed to the log.</p> + <p>Default <seealso marker="ct_slave">ct_slave</seealso> callback module + delivered with the Common Test has the following features: <list> - <item>Starting the Erlang nodes or local or remote hosts (ssh is used for remote ones);</item> - <item>Ability to start Erlang emulator with the additional flags (any flags supported by <c>erl</c> are supported);</item> - <item>Supervision of the node being start using internal callback functions. Used to prevent hanging of started nodes. Configurable;</item> - <item>Monitoring of the master node by the slaves. Slave node may be stopped in case of master node termination. Configurable;</item> - <item>Execution of the user's functions after slave node is started. Functions can be given as a list of {Module, Function, Arguments} tuples.</item> + <item>Starting the Erlang nodes or local or remote hosts + (ssh is used for remote ones); + </item> + <item>Ability to start Erlang emulator with the additional flags + (any flags supported by <c>erl</c> are supported); + </item> + <item>Supervision of the node being start using internal callback + functions. Used to prevent hanging of started nodes. Configurable; + </item> + <item>Monitoring of the master node by the slaves. Slave node may be + stopped in case of master node termination. Configurable; + </item> + <item>Execution of the user's functions after slave node is started. + Functions can be given as a list of {Module, Function, Arguments} tuples. + </item> </list> </p> - <p>If any <c>eval</c> term is specified for a node which has <c>node_start</c> term - defined for it, the evaluation of the functions will be deferred until the node is started. - The functions to be evaluated are simply added to the end of the <c>startup_functions</c> list - (see <seealso marker="ct_slave">ct_slave</seealso> chapter in the Reference Manual).</p> + <p>Note that it is possible to specify <c>eval</c> term for the node as well + as <c>startup_functions</c> in the <c>node_start</c> options list. In this + case first node will be started, then the <c>startup_functions</c> are + executed, and finally functions specified with <c>eval</c> will be called. + </p> </section> </chapter> |