def METHOD_NAME(self):
    """
    Test Gaussian noise for binary classifier.
    """
    (_, _), (x_test, _) = self.mnist
    classifier = get_image_classifier_kr_tf_binary()
    preds = classifier.predict(x_test[0:1])
    postprocessor = GaussianNoise(scale=0.1)
    post_preds = postprocessor(preds=preds)
    classifier_prediction_expected = np.asarray([[0.5301345]], dtype=np.float32)
    post_classifier_prediction_expected = np.asarray([[0.577278]], dtype=np.float32)
    np.testing.assert_array_almost_equal(preds, classifier_prediction_expected, decimal=4)
    np.testing.assert_array_almost_equal(post_preds, post_classifier_prediction_expected, decimal=4)