Using Different Test Runners For Different Tests

I am using Dagger 2 and trying to provide different dependencies at test time.

I can provide different dependencies for the tests but unfortunately, these then apply to all tests in the androidTest directory.

I do this by specifying a TestAppComponent which uses a TestAppModule. In my TestApplication, which extends my AndroidApplication, I supply the TestAppComponent rather than the real AppComponent. Then I have TestRunner that extends the newApplication method like so:

@Override
public Application newApplication(ClassLoader cl, String className, Context context) throws InstantiationException, IllegalAccessException, ClassNotFoundException {
    return super.newApplication(cl, TestApplication.class.getName(), context);
}

Then to use this runner I replace the current runner with the following:

testInstrumentationRunner "com.company.myapp.TestRunner"

My Question

How do I use a different component/application/test runner for different tests rather than use the same for each one? I may want to mock a dependency in one test but not in another?