def test_clearing_layerlist():
"""Test clearing layer list."""
layers = LayerList()
layer = Image(np.random.random((10, 10)))
layers.append(layer)
layers.append(layer)
assert len(layers) == 2
layers.clear()
assert len(layers) == 0
def test_clearing_layerlist(qtbot):
"""Test clearing layer list."""
layers = LayerList()
view = QtLayerList(layers)
qtbot.addWidget(view)
layers.extend([Image(np.random.random((15, 15))) for _ in range(4)])
assert view.vbox_layout.count() == 2 * (len(layers) + 1)
assert check_layout_layers(view.vbox_layout, layers)
assert check_layout_dividers(view.vbox_layout, len(layers))
layers.clear()
assert len(layers) == 0
assert view.vbox_layout.count() == 2 * (len(layers) + 1)
assert check_layout_layers(view.vbox_layout, layers)
assert check_layout_dividers(view.vbox_layout, len(layers))
