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<H2>4. Managing Tests & Suites</H2>

In order for a test to be run by CUnit, it must be added to a test
collection (suite) which is registered with the 
<A HREF="test_registry.html">test registry</A>.

<H3 ID="synopsis">4.1. Synopsis</H3>
#include &lt;<A HREF="headers/TestDB.h">CUnit/TestDB.h</A>&gt;
(included automatically by &lt;<A HREF="headers/CUnit.h">CUnit/CUnit.h</A>&gt;)
<P />
<PRE>
  typedef struct <B CLASS="cite">CU_Suite</B>
  typedef CU_Suite*  <B CLASS="cite">CU_pSuite</B>

  typedef struct <B CLASS="cite">CU_Test</B>
  typedef CU_Test*  <B CLASS="cite">CU_pTest</B>

  typedef void (*<B CLASS="cite">CU_TestFunc</B>)(void)
  typedef int  (*<B CLASS="cite">CU_InitializeFunc</B>)(void)
  typedef int  (*<B CLASS="cite">CU_CleanupFunc</B>)(void)

  CU_pSuite <A HREF="#addsuite">CU_add_suite</A>(const char* strName,
                         CU_InitializeFunc pInit,
                         CU_CleanupFunc pClean);

  CU_pTest  <A HREF="#addtest">CU_add_test</A>(CU_pSuite pSuite,
                        const char* strName,
                        CU_TestFunc pTestFunc);

  typedef struct <B CLASS="cite">CU_TestInfo</B>
  typedef struct <B CLASS="cite">CU_SuiteInfo</B>

  CU_ErrorCode <A HREF="#regsuites">CU_register_suites</A>(CU_SuiteInfo suite_info[]);
  CU_ErrorCode <A HREF="#regsuites">CU_register_nsuites</A>(int suite_count, ...);

  CU_ErrorCode <A HREF="#activation">CU_set_suite_active</A>(CU_pSuite pSuite, CU_BOOL fNewActive)
  CU_ErrorCode <A HREF="#activation">CU_set_test_active</A>(CU_pTest, CU_BOOL fNewActive)

  CU_ErrorCode <A HREF="#modification">CU_set_suite_name</A>(CU_pSuite pSuite, const char *strNewName)
  CU_ErrorCode <A HREF="#modification">CU_set_suite_initfunc</A>(CU_pSuite pSuite, CU_InitializeFunc pNewInit)
  CU_ErrorCode <A HREF="#modification">CU_set_suite_cleanupfunc</A>(CU_pSuite pSuite, CU_CleanupFunc pNewClean)

  CU_ErrorCode <A HREF="#modification">CU_set_test_name</A>(CU_pTest pTest, const char *strNewName)
  CU_ErrorCode <A HREF="#modification">CU_set_test_func</A>(CU_pTest pTest, CU_TestFunc pNewFunc)

  CU_pSuite <A HREF="#lookup">CU_get_suite</A>(const char* strName)
  CU_pSuite <A HREF="#lookup">CU_get_suite_at_pos</A>(unsigned int pos)
  unsigned int <A HREF="#lookup">CU_get_suite_pos</A>(CU_pSuite pSuite)
  unsigned int <A HREF="#lookup">CU_get_suite_pos_by_name</A>(const char* strName)

  CU_pTest <A HREF="#lookup">CU_get_test</A>(CU_pSuite pSuite, const char *strName)
  CU_pTest <A HREF="#lookup">CU_get_test_at_pos</A>(CU_pSuite pSuite, unsigned int pos)
  unsigned int <A HREF="#lookup">CU_get_test_pos</A>(CU_pSuite pSuite, CU_pTest pTest)
  unsigned int <A HREF="#lookup">CU_get_test_pos_by_name</A>(CU_pSuite pSuite, const char *strName)
</PRE>

<H3 ID="addsuite">4.2. Adding Suites to the Registry</H3>
<P CLASS="indent2"><CITE>CU_pSuite <B>CU_add_suite</B>(const char* strName, CU_InitializeFunc pInit, CU_CleanupFunc pClean)</CITE></P>
<P CLASS="indent5">Creates a new test collection (suite) having
the specified name, initialization function, and cleanup function.
The new suite is registered with (and owned by) the
<A HREF="test_registry.html">test registry</A>, so the registry must be
<A HREF="test_registry.html#init">initialized</A> before adding any suites.
The current implementation does not support the creation of suites 
independent of the test registry.  This function may not be called 
during a test run (i.e. from a test function or suite 
initialization/cleanup function).
<BR /><BR />
It is recommended that the suite's name be unique among all suites in 
the registry.  This facilitates suite lookup by name, which only finds 
the first suite having a given name.  The initialization and cleanup 
functions are optional, and are passed as pointers to functions to be 
called before and after running the tests contained in the suite.  This 
allows the suite to set up and tear down temporary fixtures to support 
running the tests.  These functions take no arguments and should return 
zero if they are completed successfully (non-zero otherwise).  If a 
suite does not require one or both of these functions, pass 
<CODE>NULL</CODE> to <CITE>CU_add_suite()</CITE>.
<BR /><BR />
A pointer to the new suite is returned, which is needed for adding
tests to the suite.  The pointer will be <CODE>NULL</CODE> if a fatal
error occurs.  In addition, the framework 
<A HREF="error_handling.html">error code</A> is set to one
of the following:
</P>
<P CLASS="indent10">
<TABLE CELLPADDING=1>
  <TR>
    <TD><CITE>CUE_SUCCESS</CITE></TD>
    <TD>suite creation was successful.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NOREGISTRY</CITE></TD>
    <TD>Error: the registry has not been initialized.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NO_SUITENAME</CITE></TD>
    <TD>Error: strName was <CODE>NULL</CODE>.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_DUP_SUITE</CITE></TD>
    <TD>Warning: the suite's name was not unique.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NOMEMORY</CITE></TD>
    <TD>Error: memory allocation failed.</TD>
  </TR>
</TABLE>
</P>

<H3 ID="addtest">4.3. Adding Tests to Suites</H3>
<P CLASS="indent2"><CITE>CU_pTest <B>CU_add_test</B>(CU_pSuite pSuite, const char* strName, CU_TestFunc pTestFunc)</CITE></P>
<P CLASS="indent5">Creates a new test having the specified name and
test function, and registers it with the specified suite.  The suite
must already have been created using <A HREF="#addsuite">CU_add_suite()</A>.
The current implementation does not support the creation of tests
independent of a registered suite.  This function may not be called 
during a test run (i.e. from a test function or suite 
initialization/cleanup function).
<BR /><BR />
It is recommended that the test's name be unique among all tests added 
to a single suite.  This facilitates lookup of the test by name, which
will find only the 1st test having a given name.  The test function cannot 
be <CODE>NULL</CODE>, and points to a function to be called when the test 
is run. Test functions have neither arguments nor return values.
<BR /><BR />
A pointer to the new test is returned.  If a fatal error occurs during
creation of the test, <CODE>NULL</CODE> is returned.  In addition. the 
framework <A HREF="error_handling.html">error code</A> is set to one of 
the following:
</P>
<P CLASS="indent10">
<TABLE CELLPADDING=1>
  <TR>
    <TD><CITE>CUE_SUCCESS</CITE></TD>
    <TD>suite creation was successful.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NOREGISTRY</CITE></TD>
    <TD>Error: the registry has not been initialized.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NOSUITE</CITE></TD>
    <TD>Error: the specified suite was <CODE>NULL</CODE> or invalid.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NO_TESTNAME</CITE></TD>
    <TD>Error: strName was <CODE>NULL</CODE>.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NO_TEST</CITE></TD>
    <TD>Error: pTestFunc was <CODE>NULL</CODE> or invalid.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_DUP_TEST</CITE></TD>
    <TD>Warning: the test's name was not unique.</TD>
  </TR>
  <TR>
    <TD><CITE>CUE_NOMEMORY</CITE></TD>
    <TD>Error: memory allocation failed.</TD>
  </TR>
</TABLE>
</P>

<H3 ID="shortcuts">4.4. Shortcut Methods for Managing Tests</H3>
<P CLASS="indent2"><CITE>#define <B>CU_ADD_TEST</B>(suite, test) (CU_add_test(suite, #test, (CU_TestFunc)test))</CITE></P>
<P CLASS="indent5">This macro automatically generates a unique test name
based on the test function name, and adds it to the specified suite.  The return 
value should be checked by the user to verify success.</P>
<P CLASS="indent2" ID="regsuites">
<CITE>CU_ErrorCode <B>CU_register_suites</B>(CU_SuiteInfo suite_info[])</CITE><BR />
<CITE>CU_ErrorCode <B>CU_register_nsuites</B>(int suite_count, ...)</CITE>
</P>
<P CLASS="indent5">For large test structures with many tests and suites,
managing test/suite associations and registration is tedious and error-prone.
CUnit provides a special registration system to help manage suites and tests.
Its primary benefit is to centralize the registration of suites and associated
tests, and to minimize the amount of error checking code the user needs to write.
<BR /><BR />
Test cases are first grouped into arrays of <CITE>CU_TestInfo</CITE> instances
(defined in &lt;<A HREF="headers/TestDB.h">CUnit/TestDB.h</A>&gt;):</P>
<PRE CLASS="indent10">
CU_TestInfo test_array1[] = {
  { "testname1", test_func1 },
  { "testname2", test_func2 },
  { "testname3", test_func3 },
  CU_TEST_INFO_NULL,
};
</PRE>
<P CLASS="indent5">Each array element contains the (unique) name and test
function for a single test case.  The array must end with an element
holding <CODE>NULL</CODE> values, which the macro <CITE>CU_TEST_INFO_NULL</CITE>
conveniently defines.  The test cases included in a single
<CITE>CU_TestInfo</CITE> array form the set of tests that will be registered
with a single test suite.
<BR /><BR />
Suite information is then defined in one or more arrays of 
<CITE>CU_SuiteInfo</CITE> instances (defined in 
&lt;<A HREF="headers/TestDB.h">CUnit/TestDB.h</A>&gt;):</P>
<PRE CLASS="indent10">
CU_SuiteInfo suites[] = {
  { "suitename1", suite1_init-func, suite1_cleanup_func, test_array1 },
  { "suitename2", suite2_init-func, suite2_cleanup_func, test_array2 },
  CU_SUITE_INFO_NULL,
};
</PRE>
<P CLASS="indent5">Each of these array elements contain the (unique) name,
suite initialization function, suite cleanup function, and
<CITE>CU_TestInfo</CITE> array for a single suite.  As usual,
<CODE>NULL</CODE> may be used for the initialization or cleanup
function if the given suite does not need it. The array must end
with an all-<CODE>NULL</CODE> element, for which the macro
<CITE>CU_SUITE_INFO_NULL</CITE> may be used.
<BR /><BR />
All suites defined in a <CITE>CU_SuiteInfo</CITE> array can then be
registered in a single statement:</P>
<P CLASS="indent10">
<CODE>CU_ErrorCode error = CU_register_suites(suites);</CODE>
</P>
<P CLASS="indent5">If an error occurs during the registration of any suite or
test, an error code is returned.  The error codes are the same as those returned
by normal <A HREF="#addsuite">suite registration</A> and
<A HREF="#addtest">test addition</A> operations.  The function
<CITE>CU_register_nsuites()</CITE> is provided for situations in which
the user wishes to register multiple <CITE>CU_SuiteInfo</CITE> arrays
in a single statement:</P>
<P CLASS="indent10">
<CODE>CU_ErrorCode error = CU_register_nsuites(2, suites1, suites2);</CODE>
</P>
<P CLASS="indent5">
This function accepts a variable number of <CITE>CU_SuiteInfo</CITE> arrays.
The first argument indicates the actual number ot arrays being passed.
</P>

<H3 ID="activation">4.5. Activation of Suites and Tests</H3>
<P CLASS="indent2">
  <CITE>CU_ErrorCode <B>CU_set_suite_active</B>(CU_pSuite pSuite, CU_BOOL fNewActive)</CITE><BR />
  <CITE>CU_ErrorCode <B>CU_set_test_active</B>(CU_pTest pTest, CU_BOOL fNewActive)</CITE>
</P>
<P CLASS="indent5">These functions may be used to deactivate or reactivate
individual tests and suites.  A suite or test will not be executed during a
test run unless it is active.  All suites and tests are active by default 
upon creation.  The current active state is available as <I>pSuite->fActive</I> 
and <I>pTest->fActive</I>, respectively.  The flag will be <CODE>CU_TRUE</CODE> 
if active and <CODE>CU_FALSE</CODE> if not.  This gives the client the ability to 
choose subsets of tests to run dynamically.  Note that it is a framework error 
to deactivate a test or suite and then specifically request that it be 
<A HREF="running_test/html#overview">run</A>.  These functions return
<CODE>CUE_SUCCESS</CODE> on success, and <CODE>CUE_NOSUITE</CODE> (or
<CODE>CUE_NOTEST</CODE>) if the corresponding suite (or test) is <CODE>NULL</CODE>.
</P>

<H3 ID="modification">4.6. Modifying Other Attributes of Suites and Tests</H3>
<P CLASS="indent2">Normally the attributes of suites and tests are set at creation time.  
In some cases, a client may wish to manipulate these to modify the test structure 
dynamically.  The following functions are provided for this purpose, and should
be used instead of directly setting the value of the data structure members.  All
return <CODE>CUE_SUCCESS</CODE> on success, and the indicated error code on failure.
<A HREF="#lookup">Lookup functions</A> are provided to assist clients in locating
specific tests and suites.
</P>
<P CLASS="indent2">
  <CITE>CU_ErrorCode <B>CU_set_suite_name</B>(CU_pSuite pSuite, const char *strNewName)</CITE><BR />
  <CITE>CU_ErrorCode <B>CU_set_test_name</B>(CU_pTest pTest, const char *strNewName)</CITE>
</P>
<P CLASS="indent5">These functions change the name of registered suites and tests.  
The current names are available as the <I>pSuite->pName</I> and 
<I>pTest->pName</I> data structure members.  If the suite or test is <CODE>NULL</CODE>,
then <CODE>CUE_NOSUITE</CODE> or <CODE>CUE_NOTEST</CODE> is returned, respectively.  If
strNewName is <CODE>NULL</CODE>, then <CODE>CUE_NO_SUITENAME</CODE> or
<CODE>CUE_NO_TESTNAME</CODE> is returned, respectively.
</P>
<P CLASS="indent2">
  <CITE>CU_ErrorCode <B>CU_set_suite_initfunc</B>(CU_pSuite pSuite, CU_InitializeFunc pNewInit)</CITE><BR />
  <CITE>CU_ErrorCode <B>CU_set_suite_cleanupfunc</B>(CU_pSuite pSuite, CU_CleanupFunc pNewClean)</CITE>
</P>
<P CLASS="indent5">These functions change the initialization and cleanup
functions for a registered suite.  The current functions are available as the 
<I>pSuite->pInitializeFunc</I> and <I>pSuite->pCleanupFunc</I> data structure 
members.  If the suite is <CODE>NULL</CODE> then <CODE>CUE_NOSUITE</CODE> is
returned.
</P>
<P CLASS="indent2">
  <CITE>CU_ErrorCode <B>CU_set_test_func</B>(CU_pTest pTest, CU_TestFunc pNewFunc)</CITE>
</P>
<P CLASS="indent5">This function changes the test function for a registered test.  
The current test function is available as the <I>pTest->pTestFunc</I> data 
structure member.  If either pTest or pNewFunc is <CODE>NULL</CODE>, then
<CODE>CUE_NOTEST</CODE> is returned.
</P>

<H3 ID="lookup">4.7. Lookup of Individual Suites and Tests</H3>
<P CLASS="indent2">In most cases, clients will have references to registered 
suites and tests as pointers returned from <A HREF="#addsuite">CU_add_suite()</A>
and <A HREF="#addtest">CU_add_test()</A>.  Occassionally, a client may need to be
able to retrieve a reference to a suite or test.  The following functions are
provided to assist clients with this when the client has some information about
the entity (name or order of registration).  In cases where nothing is known about
the suite or test, the client will need to iterate the internal data structures to
enumerate the suites and tests.  This is not directly supported in the client API.
</P>
<P CLASS="indent2">
  <CITE>CU_pSuite <B>CU_get_suite</B>(const char* strName)</CITE><BR />
  <CITE>CU_pSuite <B>CU_get_suite_at_pos</B>(unsigned int pos)</CITE><BR />
  <CITE>unsigned int <B>CU_get_suite_pos</B>(CU_pSuite pSuite)</CITE><BR />
  <CITE>unsigned int <B>CU_get_suite_pos_by_name</B>(const char* strName)</CITE>
</P>
<P CLASS="indent5">These functions facilitate lookup of suites registered in the
active <A HREF="test_registry.html">test registry</A>.  The first 2 functions allow 
lookup of the suite by name or position and return <CODE>NULL</CODE> if the suite cannot
be found.  The position is a 1-based index in the range 
[1 .. <A HREF="test_registry.html#otherfuncs">CU_get_registry()</A>->uiNumberOfSuites].
This may be helpful when suites having duplicate names are registered, in which case
lookup by name can only retrieve the 1st suite having that name.  The second 2 functions
help the client identify the position of a registered suite.  These return 0 if the suite 
cannot be found.  In addition, all these functions set the CUnit error state to
<CODE>CUE_NOREGISTRY</CODE> if the registry is not <A HREF="test_registry.html#init">
initialized</A>.  As appropriate, <CODE>CUE_NO_SUITENAME</CODE> is set if <CODE>strName</CODE>
is <CODE>NULL</CODE>, and <CODE>CUE_NOSUITE</CODE> is set if <CODE>pSuite</CODE>
is <CODE>NULL</CODE>.
</P>
<P CLASS="indent2">
  <CITE>CU_pTest <B>CU_get_test</B>(CU_pSuite pSuite, const char *strName)</CITE><BR />
  <CITE>CU_pTest <B>CU_get_test_at_pos</B>(CU_pSuite pSuite, unsigned int pos)</CITE><BR />
  <CITE>unsigned int <B>CU_get_test_pos</B>(CU_pSuite pSuite, CU_pTest pTest)</CITE><BR />
  <CITE>unsigned int <B>CU_get_test_pos_by_name</B>(CU_pSuite pSuite, const char *strName)</CITE>
</P>
<P CLASS="indent5">These functions facilitate lookup of tests registered in suites.  The first 
2 functions allow lookup of the test by name or position and return <CODE>NULL</CODE> if the 
test cannot found.  The position is a 1-based index in the range [1 .. pSuite->uiNumberOfSuites].
This may be helpful when tests having duplicate names are registered, in which case
lookup by name can only retrieve the 1st test having that name.  The second 2 functions
help the client identify the position of a test in a suite.  These return 0 if the test  
cannot be found.  In addition, all these functions set the CUnit error state to
<CODE>CUE_NOREGISTRY</CODE> if the registry is not <A HREF="test_registry.html#init">
initialized</A>, and to <CODE>CUE_NOSUITE</CODE> if <CODE>pSuite</CODE> is <CODE>NULL</CODE>.
As appropriate, <CODE>CUE_NO_TESTNAME</CODE> is set if <CODE>strName</CODE> is 
<CODE>NULL</CODE>, and <CODE>CUE_NOTEST</CODE> is set if <CODE>pTest</CODE> is <CODE>NULL</CODE>.
</P>
	
<H3 ID="deprecated">4.8. Deprecated v1 Data Types & Functions</H3>
The following data types and functions are deprecated as of version 2.
To use these deprecated names, user code must be compiled with
<CITE>USE_DEPRECATED_CUNIT_NAMES</CITE> defined.
<P />
<B>#include&nbsp;&lt;<A HREF="headers/TestDB.h">CUnit/TestDB.h</A>&gt;</B>
(included automatically by <A HREF="headers/CUnit.h">CUnit/CUnit.h</A>&gt;).
<P />
<TABLE CELLPADDING=5 BORDER=2>
  <TR VALIGN="top">
    <TD><B>Deprecated Name</B></TD>
    <TD><B>Equivalent New Name</B></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>TestFunc</CODE></TD>
    <TD><A HREF="#synopsis">CU_TestFunc</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>InitializeFunc</CODE></TD>
    <TD><A HREF="#synopsis">CU_InitializeFunc</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>CleanupFunc</CODE></TD>
    <TD><A HREF="#synopsis">CU_CleanupFunc</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>_TestCase</CODE></TD>
    <TD><A HREF="#synopsis">CU_Test</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>PTestCase</CODE></TD>
    <TD><A HREF="#synopsis">CU_pTest</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>_TestGroup</CODE></TD>
    <TD><A HREF="#synopsis">CU_Suite</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>PTestGroup</CODE></TD>
    <TD><A HREF="#synopsis">CU_pSuite</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>add_test_group()</CODE></TD>
    <TD><A HREF="#addsuite">CU_add_suite()</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>add_test_case()</CODE></TD>
    <TD><A HREF="#addtest">CU_add_test()</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>ADD_TEST_TO_GROUP()</CODE></TD>
    <TD><A HREF="#shortcuts">CU_ADD_TEST()</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>test_case_t</CODE></TD>
    <TD><A HREF="#regsuites">CU_TestInfo</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>test_group_t</CODE></TD>
    <TD><A HREF="#regsuites">CU_SuiteInfo</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>test_suite_t</CODE></TD>
    <TD>no equivalent - use <A HREF="#regsuites">CU_SuiteInfo</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>TEST_CASE_NULL</CODE></TD>
    <TD><A HREF="#regsuites">CU_TEST_INFO_NULL</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>TEST_GROUP_NULL</CODE></TD>
    <TD><A HREF="#regsuites">CU_SUITE_INFO_NULL</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>test_group_register</CODE></TD>
    <TD><A HREF="#regsuites">CU_register_suites()</A></TD>
  </TR>
  <TR VALIGN="top">
    <TD><CODE>test_suite_register</CODE></TD>
    <TD>no equivalent - use <A HREF="#regsuites">CU_register_suites()</A></TD>
  </TR>
</TABLE>

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