Android Unit Testing of Categories

Question

I'd like to be able to have two (or multiple) test tasks for my Android project, where the difference is a different set of Junit Categories to include/exclude.

Using the gradle java plugin, I can do something like

task testFast(type: Test) {
    useJUnit {
        includeCategories 'foo.Fast'
        excludeCategories 'foo.Slow'
    }
}

task testSlow(type: Test) {
    useJUnit {
        includeCategories 'foo.Slow'
        excludeCategories 'foo.Fast'
    }
}

However, if using the android plugin, I have to add testOptions to the android closure to include/exclude,

android {
...
    testOptions {
        unitTests.all {
            useJUnit {
                excludeCategories foo.Slow'
            }
        }
    }
...
}

but of course that applies to all test tasks for all build variants.

Is there a way to create tasks that use the same build variant, but execute tests on different categories?

Answer 1

Best I've come up with is to use a gradle property from the command line:

testOptions {
    unitTests.all {
        useJUnit {
            if (project.hasProperty('testCategory') && testCategory == "Slow") {
                includeCategories 'foo.Slow'
            } else {
                excludeCategories 'foo.Slow'
            }
        }
    }
}

and use

gradlew -PtestCategory=Slow test