def test_ros_sample_wt_fit():
 ros = RandomOverSampler(random_state=RND_SEED)
 assert_raises(RuntimeError, ros.sample, X, Y)

def test_ros_sample_wt_fit ( ) : ros = RandomOverSampler ( random_state = RND_SEED ) assert_raises ( RuntimeError , ros . sample , X , Y )
test either if an error is raised when sample is called before fitting .