*
 * @author Ben Yu
 */
@NullUnmarked
public class ClassSanityTesterTest extends TestCase {

  private final ClassSanityTester tester = new ClassSanityTester();

  public void testEqualsOnReturnValues_good() throws Exception {
    tester.forAllPublicStaticMethods(GoodEqualsFactory.class).testEquals();
  }

  public static class GoodEqualsFactory {
    public static Object good(
        String a,