def METHOD_NAME(self, correlation_type):
    actuals = [1, 2, 3, 4, 5, 6, 7, 8]
    preds = [0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8][::-1]
    metric = correlation_type(0, 10, 0.0, 1.0)
    metric.update_state(actuals, preds)
    scipy_value = self.scipy_corr[correlation_type](actuals, preds)[0]
    np.testing.assert_almost_equal(metric.result(), scipy_value)