def test_clim():
# 2D uint8
image = Image()
image.value = np.random.rand(60, 60)
rendered = image.image_rgba
assert isinstance(rendered, np.ndarray)
assert rendered.shape == (60, 60, 4)
image.set_clim(0.5, 0.7)
rendered2 = image.image_rgba
assert not np.allclose(rendered, rendered2)
assert image.get_clim() == (0.5, 0.7)
def test_empty_image():
image = Image()
assert image.image_data is None
assert image.image_rgba is None
assert image.get_clim() == (None, None)
with pytest.raises(RuntimeError):
image.set_clim(0, 100)
with pytest.raises(RuntimeError):
image.set_clim(0, 100)
with pytest.raises(RuntimeError):
image.set_cmap("turbo")
with pytest.raises(RuntimeError):
image.set_norm(1)