testing::InitGoogleTest() before calling RUN_ALL_TESTS()

[ivanwagner]

Dear all,

I have a test application which relies on Zephyr (RTOS) and I run all my unit tests using gtest.

The main function looks like the following:

void main( void )
{
    int ret = 0;
    int argc;
    char **argv;

    // googletext expects two arguments otherwise it doesn't parse gtest_filter.
    // native_get_test_cmd_line_args returns only the options after the -testargs argument thus avoiding the exe name

    // int argc and char* argv[] provided by native_posix board
    native_get_test_cmd_line_args(&argc, &argv);

    std::vector<char *> newArgv(argc+1); // vector containing one element more than required
    newArgv[0] = "test";
    for(int arg = 0; arg < argc; ++arg)
    {
        newArgv[arg+1] = argv[arg];
    }

    testing::InitGoogleTest( &argc, newArgv.data() );
    testing::InitGoogleMock( &argc, newArgv.data() );

    ret = RUN_ALL_TESTS();
    posix_exit(ret);
}

This is done because the application entry point is not under my control and but I can fetch CLI arguments by calling native_get_test_cmd_line_args.
At this point I need to elaborate the args in order to give gtest what he expects. In fact the Zephyr application has its own args but there is a flag called -testargs where you actually append everything which is related for the tests. I've noticed that to make gtest_filter arg work, gtest looks for it after arg position 0. For this reason I rewrite the args passed to gtest prepending "test".

The final exe is called like this:

./zephyr -testargs gtest_filter=*

I am getting the following notice after executing:

IMPORTANT NOTICE - DO NOT IGNORE:
This test program did NOT call testing::InitGoogleTest() before calling RUN_ALL_TESTS(). This is INVALID. Soon Google Test will start to enforce the valid usage. Please fix it ASAP, or IT WILL START TO FAIL.

How should I fix this? In fact I do call InitGoogleTest before RUN_ALL_TESTS as shown in the above example.

Thank you for the support

Ivan