def test_viewport_set_frozen_layer_names():
viewport = Viewport.new('F000')
layer_names = ['bricks', 'steel', 'glass']
viewport.frozen_layers = layer_names
assert layer_names == viewport.frozen_layers
def test_viewport_set_frozen_layer_names():
viewport = Viewport.new("F000")
layer_names = ["bricks", "steel", "glass"]
viewport.frozen_layers = layer_names
assert layer_names == viewport.frozen_layers