Re: [googletest] GTEST_FLAG(filter) problem

[Dirk Meister]

Hello,

According to the documentation [1], the ":" is a separator for different filters. If a tests passed any of the filters, it is executed.

Therefore, "*test*:**" executed all tests as "**" matches any test name.

Best regards,

Dirk

[1] https://code.google.com/p/googletest/wiki/V1_6_AdvancedGuide#Running_a_Subset_of_the_Tests

On Fri, Mar 8, 2013 at 10:48 AM, <bri...@gmail.com> wrote:

Hi, I am running googletest from Visual Studio and targeting an embedded target device.

I would like to run a limited set of tests which can be configured programmatically. I think the way to do this is through filtering. 

I have this as a basis (many different filter test string combinations have been tried). I do see the text "Note: Google Test filter = " on the console.

    ::testing::GTEST_FLAG(filter) = "*test*:**";

    testing::InitGoogleTest(&argc, argv);

    RUN_ALL_TESTS();

However, all the tests are always run.

As a test, I have also tried to set using command line -gtest_filter="*test*:*".  Again all the tests are run.

However  -gtest_filter="*zzzz*", no tests are run. And setting ::testing::GTEST_FLAG(filter) = "*zzz*"; within the program, not tests are run.

Any Suggestions? Can I get confirmation of the exact format of the filter needed and is it indeed the test_case_name and test_name defined in  TEST(test_case_name, test_name) and TEST_F(test_case_name, test_name)

Thanks.

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[bri...@gmail.com]

Hi Dirk,

Many thanks for the information.

I have reviewed this section. I have tried to create a filter to run just one test. I have used the command line to pass in the format --gtest_filter=TestCaseName:TestName

My application displays the correct filter to the console :-

"Note: Google Test filter = TestCaseName:TestName"

I can confirm that I have a test in the form:

TEST(TestCaseName, TestName)

However, none of my tests are executed.

Any ideas why this might be the case?

Also, I am actually using gtest inside gmock 1.6.0.

Thanks

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[Dirk Meister]

Hello,

Normal tests as you used are denoted as TestCaseName.TestName in gtest.

So the filter for this test should be --gtest_filter=TestCaseName.TestName.

P.S. Sometimes it helps to output the names of all tests in a binary. You can use --gtest_list_tests for this.

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[bri...@gmail.com]

Hi Dirk,

Many thanks for your response. I now understand where I was was going wrong. I read the separator ":" to be the character to separate TestCaseName and TestName - it is not.

For anyone else of read, here is what can be constructed:-

::testing::GTEST_FLAG(filter) = "TestCaseOne.*:TestCaseTwo.Test5:TestCaseTen.Test3";

This will execute all tests under TestCaseOne and two extra individual tests (TestCaseTwo.Test5, TestCaseTen.Test3).

Thanks Dirk!

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[Ken Turkowski]

--gtest_filter=TestCaseName.TestName

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