JUnit4 test runner

Question

My Java test do not compile, I run it and have:

no junit tests could not find main class (specified in run-configuration)

Answer 1

You don't have any @Test methods in your class.

JUnit4 looks for methods annotated with @Test - if it doesn't find any in a class, it omits that class completely.

Answer 2

I agree with Peter

@Test 
    public void testSomeBehavior() { 
        assertEquals("Empty list should have 0 elements", 0, emptyList.size()); 
    }