[英]Boost Unit Test framework can't find main function
I have this minimal unit test: 我有这个最小的单元测试:
#include <boost/test/unit_test.hpp>
#define BOOST_TEST_MODULE a_test
struct Color{};
BOOST_AUTO_TEST_CASE(color_test)
{
BOOST_CHECK(std::is_pod<Color>());
}
However when I compile it like so 但是当我这样编译时
clang -std=c++14 -lc++ -lboost_unit_test_framework a_test.cc -o main
I get an undefined symbol for _main. 我得到_main的未定义符号。 -lboost_unit_test_framework
uses the shared library. -lboost_unit_test_framework
使用共享库。
I used this library before, and I remember not having to declare a main function myself, as it was automatically running the several BOOST_AUTO_TEST_CASE
s I define. 我以前使用过这个库,记得没有必要自己声明main函数,因为它会自动运行我定义的几个BOOST_AUTO_TEST_CASE
。
What am I doing wrong? 我究竟做错了什么?
When linking Boost.Test dynamically, you need to define BOOST_TEST_DYN_LINK
( see boost docs here ). 动态链接Boost.Test时,您需要定义BOOST_TEST_DYN_LINK
( 请参阅此处的boost文档 )。
You may also have to link boost_test_exec_monitor
. 您可能还必须链接boost_test_exec_monitor
。
Also, all the configuration macros need to be defined before including the library header to have any effect. 同样,所有配置宏都需要先定义,再包括库头才能生效。
@melak47 is also right. @ melak47也正确。 I believe the following should work, too: 我相信以下内容也应该起作用:
#define BOOST_TEST_MODULE my_tests TestSuites // to define main()
#include <boost/test/unit_test.hpp>
struct Color{};
BOOST_AUTO_TEST_SUITE(MyColorTests)
BOOST_AUTO_TEST_CASE(color_test)
{
BOOST_CHECK( std::is_pod<Color>() );
}
BOOST_AUTO_TEST_SUITE_END()
If you link multiple such modules together, make sure that BOOST_TEST_MODULE
is only defined in one of them, before the include. 如果将多个这样的模块链接在一起,请确保在包含之前仅在其中一个模块中定义了BOOST_TEST_MODULE
。
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