JUnit extend base class and have tests in that class being run

I am using JUnit 3 and have a situation where often I have to test that an object is created correctly. My idea was to write a class `MyTestBase` as shown below and then extend from that for the situation specific unit tests. However in the example I've given, `MyTests` does not run the tests in `MyTestBase`. ``` public class MyTestBase extends TestCase { protected String foo; public void testFooNotNull() { assertNotNull(foo); } public void testFooValue() { assertEquals("bar", foo); } } public class MyTests extends MyTestBase { public void setUp() { this.foo = "bar"; } public void testSomethingElse() { assertTrue(true); } } ``` What am I doing wrong? Update Apologies. Stupid error. The tests in my base class weren't named correctly.