def test_get_convolution():
''' Check whether convolutions are retrieved appropriately. '''
assert_raises(KeyError, get_convolution, 'fictional_hrf')
conv1 = get_convolution('gamma', n=5)
conv2 = gamma(n=5)
assert_array_equal(conv1, conv2)
def test_gamma():
duration = 10
hz = 10
conv = gamma(duration=duration, hz=hz)
assert_equal(len(conv), duration*hz)