How to parameterize junit Test Suite

Question

Is it possible to parameterize a TestSuite in junit 4 ?

For declaring a class as a test suite I need the annotation @RunWith(Suite.class), but the same

Answer 1

As already stated multiple times, it's not possible to parameterize a test suite with the runners provided by JUnit 4.

Anyway, I wouldn't recommend to make your testclasses dependent from some externally provided state. What if you want to run a single testclass?

I would recommend to make your separate test classes @Parameterized and use a utility class to provide the parameters:

@RunWith(Suite.class)
@SuiteClasses({ Test1.class, Test2.class })
public class TestSuite {
    // suite
}

@RunWith(Parameterized.class}
public class Test1 {
    public Test1(Object param1) { /* ... */ }

    @Parameters
    public static Collection data() {
        return TestParameters.provideTestData()
    }

    @Test
    public void someTest() { /* ... */ }
}

@RunWith(Parameterized.class}
public class Test2 {
    public Test2(Object param1) { /* ... */ }

    @Parameters
    public static Collection data() {
        return TestParameters.provideTestData()
    }

    @Test
    public void someOtherTest() { /* ... */ }
}

class TestParameters {
    public static Collection provideTestData() {
        Collection data = new ...;
        // build testdata
    return data;
}