def test_toggle_reticule(self):
marker = Marker(10, 10, 10)
def assert_visible(visible):
assert_that(marker.circle.get_visible(), equal_to(visible))
for line in marker.lines:
assert_that(line.get_visible(), equal_to(visible))
assert_visible(True)
marker.toggle_reticule()
assert_visible(False)
marker.toggle_reticule()
assert_visible(True)
