public void testVerifyNotNull_simple_success() {
    String result = verifyNotNull(NON_NULL_STRING);
    assertSame(NON_NULL_STRING, result);
  }

  public void testVerifyNotNull_simple_failure() {
    assertThrows(VerifyException.class, () -> verifyNotNull(null));
  }

  public void testVerifyNotNull_complexMessage_success() {
    String result = verifyNotNull(NON_NULL_STRING, "%s", IGNORE_ME);