public static PTransformMatcher classEqualTo(Class<? extends PTransform> clazz) {
    return new EqualClassPTransformMatcher(clazz);
  }
@Test
  public void classEqualToDoesNotMatchUnrelatedClass() {
    PTransformMatcher matcher = PTransformMatchers.classEqualTo(ParDo.SingleOutput.class);
    AppliedPTransform<?, ?, ?> application =
        getAppliedTransform(Window.<KV<String, Integer>>into(new GlobalWindows()));

    assertThat(matcher.matches(application), is(false));
  }