Unit Test Frameworks

Name

assertion_traits

Description

The template assertion_traits (see Figure C-1) is used by the CPPUNIT_ASSERT_EQUAL() macro. The template is specialized for different data types that are passed to the macro. For example, the template specialization assertion_traits<int> is used when CPPUNIT_ASSERT_EQUAL( ) takes arguments of type int.

The declaration of assertion_traits is found in TestAssert.h. It belongs to the namespace CppUnit.

Figure C-1. The template assertion_traits

Declaration

template<class T> struct assertion_traits<T>

Constructors/Destructors

None.

Public Methods

static bool equal(const T& x, const T& y)

A function template to compare two arguments of type T. The default implementation compares them using ==.

static string toString(const T& x)

A function template to output a string representing the input argument of type T. The default implementation creates the output string by creating a std::OStringStream and using its << operator.

Protected/Private Methods

None.

Attributes

None.