c++ - How to run specific test cases in GoogleTest

Question

I am trying to write a function/method for my project, which will ask to user which all test cases are you going to run? It looks like below...,

Test_Cases_1
         |_TestNo1
         |_TestNo2....so on
Test_Cases_2
         |_TestNo1
         |_TestNo2....so on
....
....so on
Test_Cases_N
         |_TestNo1
         |_TestNo2....so on

So, now the challenge is while running the project it should prompt me what all test cases you would like to execute? If I select Test_Cases_1 and Test_Cases_N. Then it should execute these two test cases and should exclude all other from Test_Cases_2 to ..... In result window also I would like to see the results of Test_Cases_1 and Test_Cases_N.

So, if I will see the GoogleTest, there is a method called test_case_to_run_count(); But all the test cases are getting registered with Test_F() method. So, I did lots of analysis, but still did not find any solution. Please help me.

Answer 1

You could use advanced options to run Google tests.

To run only some unit tests you could use --gtest_filter=Test_Cases1* command line option with value that accepts the * and ? wildcards for matching with multiple tests. I think it will solve your problem.

UPD:

Well, the question was how to run specific test cases. Integration of gtest with your GUI is another thing, which I can't really comment, because you didn't provide details of your approach. However I believe the following approach might be a good start:

1. Get all testcases by running tests with --gtest_list_tests
2. Parse this data into your GUI
3. Select test cases you want ro run
4. Run test executable with option --gtest_filter