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BOOST_WARN(predicate); BOOST_CHECK(predicate); BOOST_REQUIRE(predicate);
These tools are used to validate the predicate value. The only parameter for these tools is a boolean predicate value that gets validated. It could be any expression that could be evaluated and converted to boolean value. The expression gets evaluated only once, so it's safe to pass complex expression for validation.
Code |
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#define BOOST_TEST_MODULE example #include <boost/test/included/unit_test.hpp> BOOST_AUTO_TEST_CASE( test ) { int i=2; BOOST_WARN( sizeof(int) == sizeof(short) ); BOOST_CHECK( i == 1 ); BOOST_REQUIRE( i > 5 ); BOOST_CHECK( i == 6 ); // will never reach this check } |
Output |
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> example --log_level=warning Running 1 test case... test.cpp(9): warning in "test": condition sizeof(int) == sizeof(short) is not satisfied test.cpp(10): error in "test": check i == 1 has failed test.cpp(11): fatal error in "test": critical check i > 5 has failed *** 2 failures are detected in test suite "example" |
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