1  import java.util.Objects;

  2  

  3  public interface TestCase

  4  {

  5     void execute() throws Exception;

  6     default void assertEquals(Object expected, Object actual)

  7     {

  8        if (!Objects.equals(actual, expected))

  9           throw new TestException("Expected: " + expected + "\nActual: " + actual);

 10     }

 11  }