def test_patch_twice():
MockTurtle.monkey_patch()
try:
with pytest.raises(RuntimeError,
match=r'MockTurtle is already monkey patched\.'):
MockTurtle.monkey_patch()
finally:
MockTurtle.remove_monkey_patch()
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 test_bounds_after_monkey_patch():
expected_width = 300
expected_height = 200
MockTurtle.monkey_patch(canvas=Canvas(expected_width, expected_height))
try:
width = turtle.window_width()
height = turtle.window_height()
finally:
MockTurtle.remove_monkey_patch()
assert width == expected_width
assert height == expected_height
def test_offset():
MockTurtle.remove_monkey_patch()
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. """
MockTurtle.remove_monkey_patch()
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()
def test_display_image_position_with_size():
expected_report = """\
create_image
110
180
image='UE5HX0lNQUdFX0RBVEE='
"""
MockTurtle.monkey_patch(Canvas(width=200, height=400))
try:
t = MockTurtle()
image_data = b'PNG_IMAGE_DATA'
LivePng(image_data).display((10, 20))
report = t.report
finally:
MockTurtle.remove_monkey_patch()
assert report == expected_report.splitlines()
def tearDown(self):
MockTurtle.remove_monkey_patch()
def patched_turtle():
MockTurtle.monkey_patch()
yield
MockTurtle.remove_monkey_patch()
def test_remove_patch_too_soon():
with pytest.raises(RuntimeError,
match=r'MockTurtle is not monkey patched\.'):
MockTurtle.remove_monkey_patch()
