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For example, assume that C++test generated the following test case:

void TestSuite_getData_0::test_getData_0()
{
    /* Pre-condition initialization */     
    /* Initializing argument 0 (this) */
	/* Initializing constructor argument 1 (fill) */
	char _cpptest_TestObject_arg_fill = cpptestLimitsGetMaxChar();    
    ::Data _cpptest_TestObject (_cpptest_TestObject_arg_fill);
    /* Tested function call */
    const char * _result = _cpptest_TestObject.getData();
    /* Post-condition check */
    CPPTEST_POST_CONDITION_CSTR("const char* _result", _result)
}

There is no need for additional precondition initialization other than creating an object to perform a function call on it. However, for the sake of this example, assume that we want to introduce the following modifications:

  • Change the constructor used for creating ::Data object to: ::Data _cpptest_TestObject('g');. This will fill the internal char buffer with g.
  • Replace the postcondition macro with a section with validation for controlling test results.

The modified test case would look like this:

void TestSuite_getData_0::test_getData_0()
{
    /* Pre-condition initialization */
    /* Initializing argument 0 (this) */
    ::Data _cpptest_TestObject('g') ;
    /* Tested function call */
    const char * _result = _cpptest_TestObject.getData();
    /* Post-condition check */
    bool res = true;
    for (int i = 0; i < _cpptest_TestObject.getSize() - 1; i++) {
	if (_result[i] != 'g') {
		res = false;
	}
    }
    // To see what is in the buffer:     
    CPPTEST_MESSAGE(_result);
    // To control test case status:
    CPPTEST_ASSERT_MESSAGE("Test failed : Buffer should be filled with 'g'", 
res == true);
}

Note: The CPPTEST_MESSAGE macro will send the content of “_result” buffer as the test case output, and the CPPTEST_ASSERT_MESSAGE will assert when the test condition fails.

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