def test_integers(self):
""" Test that mad of an integer array is working as intended """
arr_int = np.random.randint(-15, 15, size=(8, 8))
arr_flo = np.array(arr_int, copy=True, dtype=np.float)
mad_int = mad(arr_int)
mad_flo = mad(arr_flo)
self.assertTrue(np.allclose(mad_int, mad_flo))
def test_correctness(self):
""" Test that the mad() function works as expected """
arr = np.random.random(size=(32,))
from_mad = mad(arr)
explicit = np.abs(arr - np.median(arr))
self.assertTrue(np.allclose(from_mad, explicit))
def test_trivial(self):
""" Test that the median absolute dev of an array of zeroes is zero """
arr = np.zeros((16,))
self.assertTrue(np.allclose(mad(arr), 0))
def test_side_effects(self):
""" Test that input array is not modified by mad() """
arr = np.random.random(size=(32,))
arr.setflags(write=False)
mad(arr)
def test_mad_trivial():
""" Test that the median absolute dev of an array of zeroes is zero """
arr = np.zeros((16, ))
assert np.allclose(mad(arr), 0)