boost 中的单元测试库

Boost单元测试示例及异常处理

最新推荐文章于 2025-05-10 11:55:42 发布

原创最新推荐文章于 2025-05-10 11:55:42 发布 · 1.5k 阅读

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文章标签：

#单元测试 #exception #signal #loops #include #output

博客展示了使用Boost进行单元测试的示例代码，包含强制除零和无限循环测试。单元测试框架能捕获操作系统信号，还可通过超时机制打破无限循环。测试运行时出现算术异常和超时异常，测试套件检测到错误。

#include <boost/test/unit_test.hpp>
using boost::unit_test::test_suite;

void force_division_by_zero()
{
    // unit test framework can catch operating system signals
    BOOST_CHECKPOINT("About to force division by zero!");
    int i = 1, j = 0;
    i = i / j;
}

void infinite_loop()
{
    // unit test framework can break infinite loops by timeout
#ifdef __unix // don't have timeout on other platforms
    BOOST_CHECKPOINT("About to enter an infinite loop!");
    while(1);
#else
    BOOST_MESSAGE( "Timeout support is not implemented on your platform" );
#endif
}

test_suite*
init_unit_test_suite( int argc, char * argv[] ) {
    test_suite* test= BOOST_TEST_SUITE( "Unit test example 2" );

    test->add( BOOST_TEST_CASE( &force_division_by_zero ) );
    test->add( BOOST_TEST_CASE( &infinite_loop ), 0, /* timeout */ 2 );

    return test;
}

// EOF

输出：
Running 2 test cases...
Exception in "force_division_by_zero": signal: SIGFPE (arithmetic exception)
t7.cpp(7): last checkpoint: About to force division by zero!
Exception in "infinite_loop": signal: SIGALRM (timeout while executing function)
t7.cpp(16): last checkpoint: About to enter an infinite loop!