The TestCase base class

This is the base class of all other test cases in the JUnit framework. It implements the basic methods that we were analyzing in the previous examples (setUp()). The TestCase class also implements the junit.framework.Test interface, meaning it can be run as a JUnit test.

Your Android test cases should always extend TestCase or one of its descendants.

The default constructor

All test cases require a default constructor because, sometimes, depending on the test runner used, this is the only constructor that is invoked, and is also used for serialization.

According to the documentation, this method is not intended to be used by "mere mortals" without calling setName(String name).

Therefore, to appease the Gods, a common pattern is to use a default test case name in this constructor and invoke the given name constructor afterwards:

public class MyTestCase extends TestCase {
   public MyTestCase() {
      this("MyTestCase Default Name");
   }

   public MyTestCase(String name...