Flutter integration_test - add --flavor argument in VS Code

Question

I have a suite of integration tests for a Flutter app. I would like to run them using the VS Code Testing tab, so that I can easily see info about what tests passed/failed, etc.

This worked fine before we implemented flavors. Now that flavors are defined in launch.json, running the tests require a --flavor argument, but I can't seem to set that in the UI.

If I try to run them on iOS using the Testing tab in VS Code, I get this error:

The Xcode project defines schemes: dev, prod, qa Exception: You must specify a --flavor option to select one of the available schemes.

I can run flutter test integration_test --flavor dev, but the terminal fills up with logs and it's harder to find out which tests failed and why.

Weanling

What version of Flutter do you use? There was an issue with flavors but that has actually been fixed some time ago. – Trueblood

@Trueblood I'm currently using Flutter version 3.7.6 and am still experiencing this issue. – Weanling

Answer 1

I just struggled with it too. You need to add this in your launch.json:

{
        "name": "integration test",
        "request": "launch",
        "type": "dart",
        // Define your flavor (here: foo) that you use in tests
        "toolArgs": [
            "--flavor",
            "foo",
        ],
        // This is important: set it only for integration_test
        "templateFor": "integration_test",
    },

Thats it! Now you can run them on VSCode too.

Libbielibbna

This only works if you want to run all tests at once - the Run/Debug buttons next to each test will still fail. – Ytterbia