59 lines
1.6 KiB
Python
59 lines
1.6 KiB
Python
from gaphas.aspect import Connector, ConnectionSink
|
|
from gaphas.canvas import Canvas
|
|
from gaphas.examples import Box
|
|
from gaphas.item import Line
|
|
|
|
|
|
def test_undo_on_delete_element(revert_undo, undo_fixture):
|
|
b1 = Box()
|
|
b2 = Box()
|
|
line = Line()
|
|
|
|
canvas = Canvas()
|
|
canvas.add(b1)
|
|
assert 2 == len(canvas.solver.constraints)
|
|
|
|
canvas.add(b2)
|
|
assert 4 == len(canvas.solver.constraints)
|
|
|
|
canvas.add(line)
|
|
|
|
sink = ConnectionSink(b1, b1.ports()[0])
|
|
connector = Connector(line, line.handles()[0])
|
|
connector.connect(sink)
|
|
|
|
sink = ConnectionSink(b2, b2.ports()[0])
|
|
connector = Connector(line, line.handles()[-1])
|
|
connector.connect(sink)
|
|
|
|
assert 6 == len(canvas.solver.constraints)
|
|
assert 2 == len(list(canvas.get_connections(item=line)))
|
|
|
|
del undo_fixture[2][:] # Clear undo_list
|
|
|
|
# Here disconnect is not invoked!
|
|
canvas.remove(b2)
|
|
|
|
assert 3 == len(canvas.solver.constraints)
|
|
assert 1 == len(list(canvas.get_connections(item=line)))
|
|
|
|
cinfo = canvas.get_connection(line.handles()[0])
|
|
assert b1 == cinfo.connected
|
|
|
|
cinfo = canvas.get_connection(line.handles()[-1])
|
|
assert cinfo is None
|
|
|
|
assert [] == list(canvas.solver.constraints_with_variable(line.handles()[-1].pos.x))
|
|
assert [] == list(canvas.solver.constraints_with_variable(line.handles()[-1].pos.y))
|
|
|
|
undo_fixture[0]() # Call undo
|
|
|
|
assert 6 == len(canvas.solver.constraints)
|
|
assert 2 == len(list(canvas.get_connections(item=line)))
|
|
|
|
cinfo = canvas.get_connection(line.handles()[0])
|
|
assert b1 == cinfo.connected
|
|
|
|
cinfo = canvas.get_connection(line.handles()[-1])
|
|
assert b2 == cinfo.connected
|