def test_post_load_hook_resolves_frozen_layer_handles_into_names():
doc = ezdxf.new('R2000')
l1 = doc.layers.new('Layer1')
l2 = doc.layers.new('Layer2')
handles = [l1.dxf.handle, l2.dxf.handle]
viewport = Viewport.from_text(ENTITY_R2000)
# implant some handles
viewport.frozen_layers = handles
result = viewport.post_load_hook(doc)
assert result is None
assert viewport.frozen_layers == ['Layer1', 'Layer2'], \
'Layer handles must be resolved'
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