Summary of the API for writing tests

Assertions	Short description
`BOOST_TEST`, `BOOST_TEST_<level>`	General purpose assertion macro.
`BOOST_<level>`	Simple validation of a boolean predicate value.
`BOOST_<level>_BITWISE_EQUAL`	Bitwise equality test of two elements.
`BOOST_<level>_EQUAL`	Equality test of two elements.
`BOOST_<level>_EQUAL_COLLECTIONS`	Element-wise equality test of two collections.
`BOOST_<level>_CLOSE`	Floating point comparison using a percentage of deviation.
`BOOST_<level>_CLOSE_FRACTION`	Floating point comparison using the fraction of the compared operands.
`BOOST_<level>_EXCEPTION`	Exception detection and validation check.
`BOOST_<level>_GE`	Comparison of two values (with convenient reporting).
`BOOST_<level>_GT`	Comparison of two values (with convenient reporting).
`BOOST_<level>_LE`	Comparison of two values (with convenient reporting).
`BOOST_<level>_LT`	Comparison of two values (with convenient reporting).
`BOOST_<level>_MESSAGE`	Same as `BOOST_<level>` with a custom message in case of failure.
`BOOST_<level>_NE`	Comparison of two values (with convenient reporting).
`BOOST_<level>_NO_THROW`	Checks an expression does not throw any exception.
`BOOST_<level>_PREDICATE`	Checks a list of arguments against a predicate functor.
`BOOST_<level>_SMALL`	Checks a value is small according to a tolerance.
`BOOST_<level>_THROW`	Checks an expression throws a specific type of expression.
`BOOST_AUTO_TEST_CASE_EXPECTED_FAILURES`	Indicates the number of expected failures for a test case
`BOOST_ERROR`	Logs an error message, fails but does not abort the current test.
`BOOST_FAIL`	Logs an error message, fails and aborts the current test.
`BOOST_IS_DEFINED`	Checks at runtime whether or not the supplied preprocessor symbol is defined.

Decorators	Short description
`expected_failures`	Indicates the expected failures of a test unit.
`timeout`	Sets the maximum amount of time a test unit should take.
`tolerance`	Sets the floating point comparison tolerance for a test unit.

Control macros	Short description
`BOOST_TEST_TOOLS_UNDER_DEBUGGER`	When defined, test assertions are compiled in debugger-friendly mode.
`BOOST_TEST_TOOLS_DEBUGGABLE`	When defined, test assertions are compiled in two modes (debugger-friendly and full-featured), and the version is selected at run-time.