def test_is_patched():
assert not MockTurtle.is_patched()
MockTurtle.monkey_patch()
try:
assert MockTurtle.is_patched()
finally:
MockTurtle.remove_monkey_patch()
assert not MockTurtle.is_patched()
def display_diff(self, actual: LivePainter, expected: LivePainter):
if not self.is_displayed:
return
if not MockTurtle.is_patched():
return
t = MockTurtle()
w = t.getscreen().window_width()
h = t.getscreen().window_height()
ox, oy = w / 2, h / 2
actual_width, actual_height = actual.get_size()
expected_width, expected_height = expected.get_size()
diff_width, diff_height = self.diff.get_size()
text_space = (h - actual_height - diff_height - expected_height)
text_height = max(20, text_space // 3)
font = ('Arial', text_height // 2, 'normal')
t.penup()
t.goto(-ox, oy)
t.right(90)
t.forward(text_height)
t.write('Actual', font=font)
actual.display(t.pos())
t.forward(actual_height)
t.forward(text_height)
t.write('Diff ({} pixels)'.format(self.diff_count), font=font)
self.diff.display(t.pos())
t.forward(diff_height)
t.forward(text_height)
t.write('Expected', font=font)
expected.display(t.pos())
def test_offset():
assert not MockTurtle.is_patched()
expected_report = """\
create_line
400
300
500
300
fill='black'
pensize=1
"""
t = MockTurtle(canvas=Canvas(800, 600))
t.fd(100)
report = t.report
assert report == expected_report.splitlines()
def test_offset_with_scale():
""" The offset is applied BEFORE the scale. """
assert not MockTurtle.is_patched()
expected_report = """\
create_line
400
300
500
300
fill='black'
pensize=1
"""
t = MockTurtle(canvas=Canvas(800, 600))
t.screen.xscale = 100
t.fd(1)
report = t.report
assert report == expected_report.splitlines()
