80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
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// Helper macros for writing exception-based tests
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/** The exception that is thrown if a test fails.
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It doesn't inherit from any type so that it is not possible to catch it by a mistake,
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it needs to be caught explicitly (used in the TEST_THROWS).
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It bears a single message that is to be displayed to stderr. */
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class TestException
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{
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public:
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TestException(const AString & aMessage):
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mMessage(aMessage)
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{
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}
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AString mMessage;
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};
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/** Checks that the two values are equal; if not, throws a TestException. */
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#define TEST_EQUAL(VAL1, VAL2) \
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if (VAL1 != VAL2) \
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{ \
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throw TestException(Printf("%s (line %d): Equality test failed: %s != %s", \
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__FUNCTION__, __LINE__, \
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#VAL1, #VAL2 \
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)); \
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}
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/** Checks that the two values are not equal; if they are, throws a TestException. */
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#define TEST_NOTEQUAL(VAL1, VAL2) \
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if (VAL1 == VAL2) \
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{ \
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throw TestException(Printf("%s (line %d): Inequality test failed: %s == %s", \
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__FUNCTION__, __LINE__, \
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#VAL1, #VAL2 \
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)); \
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}
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/** Checks that the statement throws an exception of the specified class. */
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#define TEST_THROWS(Stmt, ExcClass) \
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try \
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{ \
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Stmt; \
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throw TestException(Printf("%s (line %d): Failed to throw an exception of type %s", \
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__FUNCTION__, __LINE__, \
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#ExcClass \
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)); \
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} \
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catch (const ExcClass &) \
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{ \
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/* This is the expected case. */ \
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} \
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catch (const std::exception & exc) \
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{ \
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throw TestException(Printf("%s (line %d): An unexpected std::exception descendant was thrown, was expecting type %s. Message is: %s", \
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__FUNCTION__, __LINE__, \
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#ExcClass, exc.what() \
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)); \
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} \
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catch (...) \
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{ \
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throw TestException(Printf("%s (line %d): An unexpected exception object was thrown, was expecting type %s", \
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__FUNCTION__, __LINE__, \
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#ExcClass \
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)); \
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}
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