Question

我想在ubuntu x64下使用命令行运行gtest的C ++类的单元测试。我正在按照一本书的教程，使用以下命令来实现：

g++ -o tester.exe MyClass1.cpp MyClass1Test.cpp 
-I googletest/googletest -I googletest/googletest/include
-I googletest/googlemock -I googletest/googlemock/include 
-I usr/lib/libgtest.a -l -lpthread

“掌握C ++编程”（Jeganathan Swaminathan）建议的原始命令：

g++ -o tester.exe src/Math.cpp test/MathTest.cpp 
-I googletest/googletest -I googletest/googletest/include 
-I googletest/googlemock -I googletest/googlemock/include 
-I src libgtest.a -lpthread

我的3个文件看起来像这样：

“MyClass1.cpp”

#include "MyClass1.h"

bool MyClass1::checkEquality(int number1, int number2) {

        int result = number1 - number2;

        if(result == 0) {
                return true;
        }
        else {
                return false;
        }

}

int main() {}

“MyClass1.h”

class MyClass1 {
public:
    bool checkEquality(int number1, int number2);
};

“MyClass1Test.cpp”

#include "MyClass1.h"
#include <gtest/gtest.h>

TEST ( MyClass1Test, checkIntEquality) {

        MyClass1 myClass;

        bool expectedResult = true;
        int number1 = 10;
        int number2 = 10;

        bool result = myClass.checkEquality(number1, number2);

        EXPECT_EQ(expectedResult, result);
}

当我搜索解决方案时，我已经尝试过使用参数的顺序，但这并没有给我一个不同的输出。我还读到lpthread库与此问题有关，但我不确定该如何处理。

我从上面的命令得到的输出是：

/tmp/ccJVQJv2.o: In function `MyClass1Test_checkIntEquality_Test::TestBody()':
MyClass1Test.cpp:(.text+0x72): undefined reference to `testing::Message::Message()'
MyClass1Test.cpp:(.text+0x9f): undefined reference to `testing::internal::AssertHelper::AssertHelper(testing::TestPartResult::Type, char const*, int, char const*)'
MyClass1Test.cpp:(.text+0xb2): undefined reference to `testing::internal::AssertHelper::operator=(testing::Message const&) const'
MyClass1Test.cpp:(.text+0xbe): undefined reference to `testing::internal::AssertHelper::~AssertHelper()'
MyClass1Test.cpp:(.text+0xe7): undefined reference to `testing::internal::AssertHelper::~AssertHelper()'
/tmp/ccJVQJv2.o: In function `__static_initialization_and_destruction_0(int, int)':
MyClass1Test.cpp:(.text+0x17b): undefined reference to `testing::internal::GetTestTypeId()'
MyClass1Test.cpp:(.text+0x1e9): undefined reference to `testing::internal::MakeAndRegisterTestInfo(char const*, char const*, char const*, char const*, testing::internal::CodeLocation, void const*, void (*)(), void (*)(), testing::internal::TestFactoryBase*)'
/tmp/ccJVQJv2.o: In function `MyClass1Test_checkIntEquality_Test::MyClass1Test_checkIntEquality_Test()':
MyClass1Test.cpp:(.text._ZN34MyClass1Test_checkIntEquality_TestC2Ev[_ZN34MyClass1Test_checkIntEquality_TestC5Ev]+0x14): undefined reference to `testing::Test::Test()'
/tmp/ccJVQJv2.o: In function `testing::internal::scoped_ptr<std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > >::reset(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*)':
MyClass1Test.cpp:(.text._ZN7testing8internal10scoped_ptrINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE5resetEPS7_[_ZN7testing8internal10scoped_ptrINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEE5resetEPS7_]+0x24): undefined reference to `testing::internal::IsTrue(bool)'
/tmp/ccJVQJv2.o: In function `testing::internal::scoped_ptr<std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> > >::reset(std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >*)':
MyClass1Test.cpp:(.text._ZN7testing8internal10scoped_ptrINSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEEE5resetEPS7_[_ZN7testing8internal10scoped_ptrINSt7__cxx1118basic_stringstreamIcSt11char_traitsIcESaIcEEEE5resetEPS7_]+0x23): undefined reference to `testing::internal::IsTrue(bool)'
/tmp/ccJVQJv2.o: In function `testing::AssertionResult testing::internal::CmpHelperEQ<bool, bool>(char const*, char const*, bool const&, bool const&)':
MyClass1Test.cpp:(.text._ZN7testing8internal11CmpHelperEQIbbEENS_15AssertionResultEPKcS4_RKT_RKT0_[_ZN7testing8internal11CmpHelperEQIbbEENS_15AssertionResultEPKcS4_RKT_RKT0_]+0x36): undefined reference to `testing::AssertionSuccess()'
/tmp/ccJVQJv2.o: In function `testing::AssertionResult testing::internal::CmpHelperEQFailure<bool, bool>(char const*, char const*, bool const&, bool const&)':
MyClass1Test.cpp:(.text._ZN7testing8internal18CmpHelperEQFailureIbbEENS_15AssertionResultEPKcS4_RKT_RKT0_[_ZN7testing8internal18CmpHelperEQFailureIbbEENS_15AssertionResultEPKcS4_RKT_RKT0_]+0x6c): undefined reference to `testing::internal::EqFailure(char const*, char const*, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, bool)'
/tmp/ccJVQJv2.o:(.rodata._ZTV34MyClass1Test_checkIntEquality_Test[_ZTV34MyClass1Test_checkIntEquality_Test]+0x20): undefined reference to `testing::Test::SetUp()'
/tmp/ccJVQJv2.o:(.rodata._ZTV34MyClass1Test_checkIntEquality_Test[_ZTV34MyClass1Test_checkIntEquality_Test]+0x28): undefined reference to `testing::Test::TearDown()'
/tmp/ccJVQJv2.o: In function `MyClass1Test_checkIntEquality_Test::~MyClass1Test_checkIntEquality_Test()':
MyClass1Test.cpp:(.text._ZN34MyClass1Test_checkIntEquality_TestD2Ev[_ZN34MyClass1Test_checkIntEquality_TestD5Ev]+0x20): undefined reference to `testing::Test::~Test()'
/tmp/ccJVQJv2.o:(.rodata._ZTI34MyClass1Test_checkIntEquality_Test[_ZTI34MyClass1Test_checkIntEquality_Test]+0x10): undefined reference to `typeinfo for testing::Test'
collect2: error: ld returned 1 exit status

Answer 1

有一本奇怪的教程书。 .exe扩展对于Linux来说是荒谬的，删除它。

g++ -o tester MyClass1.cpp MyClass1Test.cpp -Igoogletest/googletest -Igoogletest/googletest/include -Igoogletest/googlemock -Ioogletest/googlemock/include -lgtest -lpthread

或者

g++ -o tester MyClass1.cpp MyClass1Test.cpp -Igoogletest/googletest -Igoogletest/googletest/include -Igoogletest/googlemock -Ioogletest/googlemock/include /usr/lib/libgtest.a -lpthread

对于Windows，您可以借助教程How to use Google Test for C++ in Visual Studio？

来调整Visual Studio的开发环境

使用命令行运行gtest会产生错误

1 个答案: