def test_to_prestep():
x = np.arange(4)
y1 = np.arange(4)
y2 = np.arange(4)[::-1]
xs, y1s, y2s = cbook.pts_to_prestep(x, y1, y2)
x_target = np.asarray([0, 0, 1, 1, 2, 2, 3], dtype='float')
y1_target = np.asarray([0, 1, 1, 2, 2, 3, 3], dtype='float')
y2_target = np.asarray([3, 2, 2, 1, 1, 0, 0], dtype='float')
assert_array_equal(x_target, xs)
assert_array_equal(y1_target, y1s)
assert_array_equal(y2_target, y2s)
xs, y1s = cbook.pts_to_prestep(x, y1)
assert_array_equal(x_target, xs)
assert_array_equal(y1_target, y1s)
def test_to_prestep():
x = np.arange(4)
y1 = np.arange(4)
y2 = np.arange(4)[::-1]
xs, y1s, y2s = cbook.pts_to_prestep(x, y1, y2)
x_target = np.asarray([0, 0, 1, 1, 2, 2, 3], dtype='float')
y1_target = np.asarray([0, 1, 1, 2, 2, 3, 3], dtype='float')
y2_target = np.asarray([3, 2, 2, 1, 1, 0, 0], dtype='float')
assert_array_equal(x_target, xs)
assert_array_equal(y1_target, y1s)
assert_array_equal(y2_target, y2s)
xs, y1s = cbook.pts_to_prestep(x, y1)
assert_array_equal(x_target, xs)
assert_array_equal(y1_target, y1s)
def test_step_fails(args):
with pytest.raises(ValueError):
cbook.pts_to_prestep(*args)
def test_to_prestep_empty():
steps = cbook.pts_to_prestep([], [])
assert steps.shape == (2, 0)
def test_step_fails(args):
with pytest.raises(ValueError):
cbook.pts_to_prestep(*args)
def test_to_prestep_empty():
steps = cbook.pts_to_prestep([], [])
assert steps.shape == (2, 0)
