Google使用全局向量测试ValuesIn

我花了最后一个小时试图弄清楚这一点,然后一发布我就想出了解决方案。我会把这个留在这里,因为它可能会在未来帮助某人:

不要试图在main中创建文件列表,而是将ValuesIn传递给加载文件并返回向量的函数。

std::vector<TestParam> GetFilesInDir() 
{
    std::vector<TestParam> values;
    QString dir = "/home/mitydsp/trunk/System/logicExecutionEngine/unittest/expressions/bad/";
    QDirIterator it(dir, QStringList() << "*.txt", QDir::Files, QDirIterator::Subdirectories);

    while (it.hasNext()) {
        QString path = it.next();
        QStringList nameParts = it.fileName().split("_");
        int exitCode = nameParts[0].toInt();
        values.push_back(TestParam(path, exitCode));
    }

    return values;
}

INSTANTIATE_TEST_CASE_P(TestBadExpressions, LogicBuilderTest,
                        ::testing::ValuesIn(GetFilesInDir()));

感谢Maksim Solovjov提醒我INSTANTATE_TEST_CASE_P宏在main之前执行。

我们在这个问题上花了几个小时,认为这个片段会有所帮助。

#include <iostream>
#include <string>
#include <vector>
using namespace std;
#include "gtest/gtest.h"

GTEST_API_ main( int argc, char* argv[] ) {
   testing::InitGoogleTest( &argc, argv );
   return RUN_ALL_TESTS();
}

struct test_parms_s {
   string         name;             // Simple name of this test
   string         description;      // Description of this test
   void*          function_parms;   // Pointer to test function specific data
};

std::vector<test_parms_s*> BuildTestData() {
   test_parms_s* pTestDataA = new test_parms_s(); 
   test_parms_s* pTestDataB = new test_parms_s(); 
   test_parms_s* pTestDataC = new test_parms_s();

   pTestDataA->name.assign("testA");
   pTestDataA->description.assign("testA_desc");
   pTestDataA->function_parms = NULL;

   pTestDataB->name.assign("testB");
   pTestDataB->description.assign("testB_desc");
   pTestDataB->function_parms = NULL;

   pTestDataC->name.assign("testC");
   pTestDataC->description.assign("testC_desc");
   pTestDataC->function_parms = NULL;

   std::vector<test_parms_s*> values;
   values.push_back(pTestDataA);
   values.push_back(pTestDataB);
   values.push_back(pTestDataC);
   cout << "BuildTestData" << endl;

   return values;
}
//------------------------------------------------------------------------
class Testy {
  private:
     string       testname_;
  public:
     Testy( string testname );
     ~Testy();
     string   GetTestName();
     void     SetTestName( string testname );
};
Testy::Testy( string testname ) {
   testname_.assign(testname);
}
Testy::~Testy() {}
string Testy::GetTestName() { return testname_; }
void Testy::SetTestName( string testname ) { testname_ = testname; }
//------------------------------------------------
class TestFixture : public ::testing::TestWithParam<test_parms_s*> {
   protected:
     Testy* testy;      
     virtual void SetUp() {
        testy = new Testy( "Test");
     }
     virtual void TearDown() {
        delete( testy );
     }
};
//------------------------------------------------
TEST_P( TestFixture, ParamTest ) {
   test_parms_s* pTestParms = GetParam();
   cout << pTestParms->name << endl;
} 
//------------------------------------------------
INSTANTIATE_TEST_CASE_P( TestFixture_instance, TestFixture,                     
                         ::testing::ValuesIn(BuildTestData()));
//========================================================================

输出将是

BuildTestData
[==========] Running 3 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 3 tests from TestFixture_instance/TestFixture
[ RUN      ] TestFixture_instance/TestFixture.ParamTest/0
testA
[       OK ] TestFixture_instance/TestFixture.ParamTest/0 (0 ms)
[ RUN      ] TestFixture_instance/TestFixture.ParamTest/1
testB
[       OK ] TestFixture_instance/TestFixture.ParamTest/1 (0 ms)
[ RUN      ] TestFixture_instance/TestFixture.ParamTest/2
testC
[       OK ] TestFixture_instance/TestFixture.ParamTest/2 (0 ms)
[----------] 3 tests from TestFixture_instance/TestFixture (0 ms total)

[----------] Global test environment tear-down
[==========] 3 tests from 1 test case ran. (0 ms total)
[  PASSED  ] 3 tests.

我不是手动实例化Google测试的专家,但你做的方式不可能奏效:你调用 INSTANTIATE_TEST_CASE_P 在静态上下文中,因此它在 main 被称为。

您可以尝试在之前移动实例化 RUN_ALL_TESTS ; 但是,我不知道宏的作用,这可能是非法的。在这种情况下,我认为您不能使用 实例化测试用例 以您想要的动态方式。