running a subset of JUnit @Test methods

Question

We\'re using JUnit 4 to test: we have classes that don\'t are a subclass of TestCase, and they have public methods annotated with @Test. We have on

Answer 1

Create your own TestClassMethodsRunner (it's not documentated or I don't find it now).
A TestClassMethodsRunner executes all TestCases and you can set up a filtered TestClassMethodsRunner.

All you have to do is override the TestMethodRunner createMethodRunner(Object, Method, RunNotifier) method. This is a simple an hacky solution:

public class FilteredTestRunner extends TestClassMethodsRunner {

    public FilteredTestRunner(Class aClass) {
        super(aClass);
    }

    @Override
    protected TestMethodRunner createMethodRunner(Object aTest, Method aMethod, RunNotifier aNotifier) {
        if (aTest.getClass().getName().contains("NOT")) {
            return new TestMethodRunner(aTest, aMethod, aNotifier, null) {
                @Override
                public void run() {
                    //do nothing with this test.
                }
            };
        } else {
            return super.createMethodRunner(aTest, aMethod, aNotifier);
        }
    }

}

With this TestRunner, you execute all Tests that don't contain the string "NOT". Others will be ignored :) Just add the @RunWith annotation with your TestRunner class to your test.

@RunWith(FilteredTestRunner.class)
public class ThisTestsWillNOTBeExecuted {
   //No test is executed.
}

@RunWith(FilteredTestRunner.class)
public class ThisTestsWillBeExecuted {
   //All tests are executed.
}

In the createMethodRunner method you can check the current test against a list of tests that must be executed or introduce new criterias.

Good luck with this!

Hints for a nicer solution are appreciated!