def test_invalid_arc_not_enough_args(path):
pen = ArcRecordingPen()
with pytest.raises(ValueError, match="Invalid arc command") as e:
parse_path(path, pen)
assert isinstance(e.value.__cause__, ValueError)
assert "Not enough arguments" in str(e.value.__cause__)
def test_equivalent_paths(pathdef1, pathdef2):
pen1 = RecordingPen()
parse_path(pathdef1, pen1)
pen2 = RecordingPen()
parse_path(pathdef2, pen2)
assert pen1.value == pen2.value
def test_arc_pen_with_arcTo():
pen = ArcRecordingPen()
parse_path("M300,200 h-150 a150,150 0 1,0 150,-150 z", pen)
expected = [('moveTo', ((300.0, 200.0), )), ('lineTo', ((150.0, 200.0), )),
('arcTo', (150.0, 150.0, 0.0, True, False, (300.0, 50.0))),
('lineTo', ((300.0, 200.0), )), ('closePath', ())]
assert pen.value == expected
def test_equivalent_paths(pathdef1, pathdef2):
pen1 = RecordingPen()
parse_path(pathdef1, pen1)
pen2 = RecordingPen()
parse_path(pathdef2, pen2)
assert pen1.value == pen2.value
def test_exponents():
# It can be e or E, the plus is optional, and a minimum of +/-3.4e38 must be supported.
pen = RecordingPen()
parse_path("M-3.4e38 3.4E+38L-3.4E-38,3.4e-38", pen)
expected = [
("moveTo", ((-3.4e+38, 3.4e+38), )),
("lineTo", ((-3.4e-38, 3.4e-38), )),
("endPath", ()),
]
assert pen.value == expected
def test_exponents():
# It can be e or E, the plus is optional, and a minimum of +/-3.4e38 must be supported.
pen = RecordingPen()
parse_path("M-3.4e38 3.4E+38L-3.4E-38,3.4e-38", pen)
expected = [
("moveTo", ((-3.4e+38, 3.4e+38),)),
("lineTo", ((-3.4e-38, 3.4e-38),)),
("endPath", ()),
]
assert pen.value == expected
def __init__(self, name, d, advwidth, advheight, transform=Identity):
self.name = name
advwidth *= abs(transform[0])
advheight *= abs(transform[3])
self.advwidth = advwidth
self.advheight = advheight
pen = T2CharStringPen(advwidth, None)
tpen = TransformPen(pen, transform)
parse_path(d, tpen)
self.charstring = pen.getCharString()
def test_invalid_arc_argument_value():
pen = ArcRecordingPen()
with pytest.raises(ValueError, match="Invalid arc command") as e:
parse_path("M0,0 A0,0,0,2,0,0,0", pen)
cause = e.value.__cause__
assert isinstance(cause, ValueError)
assert "Invalid argument for 'large-arc-flag' parameter: '2'" in str(cause)
pen = ArcRecordingPen()
with pytest.raises(ValueError, match="Invalid arc command") as e:
parse_path("M0,0 A0,0,0,0,-2.0,0,0", pen)
cause = e.value.__cause__
assert isinstance(cause, ValueError)
assert "Invalid argument for 'sweep-flag' parameter: '-2.0'" in str(cause)
def test_arc_to_cubic_bezier():
pen = RecordingPen()
parse_path("M300,200 h-150 a150,150 0 1,0 150,-150 z", pen)
expected = [
('moveTo', ((300.0, 200.0), )), ('lineTo', ((150.0, 200.0), )),
('curveTo', ((150.0, 282.842), (217.157, 350.0), (300.0, 350.0))),
('curveTo', ((382.842, 350.0), (450.0, 282.842), (450.0, 200.0))),
('curveTo', ((450.0, 117.157), (382.842, 50.0), (300.0, 50.0))),
('lineTo', ((300.0, 200.0), )), ('closePath', ())
]
result = list(pen.value)
assert len(result) == len(expected)
for (cmd1, points1), (cmd2, points2) in zip(result, expected):
assert cmd1 == cmd2
assert len(points1) == len(points2)
for pt1, pt2 in zip(points1, points2):
assert pt1 == pytest.approx(pt2, rel=1e-5)
def test_parse_path(pathdef, expected):
pen = RecordingPen()
parse_path(pathdef, pen)
assert pen.value == expected
def drawPoints(pointPen):
pen = TransformPen(SegmentToPointPen(pointPen), transform)
parse_path(path, pen)
def test_arc_not_implemented():
pathdef = "M300,200 h-150 a150,150 0 1,0 150,-150 z"
with pytest.raises(NotImplementedError) as exc_info:
parse_path(pathdef, RecordingPen())
assert exc_info.match("arcs are not supported")
def test_invalid_implicit_command():
with pytest.raises(ValueError) as exc_info:
parse_path("M 100 100 L 200 200 Z 100 200", RecordingPen())
assert exc_info.match("Unallowed implicit command")
def test_invalid_implicit_command():
with pytest.raises(ValueError) as exc_info:
parse_path("M 100 100 L 200 200 Z 100 200", RecordingPen())
assert exc_info.match("Unallowed implicit command")
def test_arc_flags_without_spaces(path, expected):
pen = ArcRecordingPen()
parse_path(path, pen)
assert pen.value == expected
def test_arc_not_implemented():
pathdef = "M300,200 h-150 a150,150 0 1,0 150,-150 z"
with pytest.raises(NotImplementedError) as exc_info:
parse_path(pathdef, RecordingPen())
assert exc_info.match("arcs are not supported")
def test_parse_path(pathdef, expected):
pen = RecordingPen()
parse_path(pathdef, pen)
assert pen.value == expected
