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import pickle
import re
import platform
import pytest
import cairo
# https://foss.heptapod.net/pypy/pypy/-/issues/2742
@pytest.mark.skipif(platform.python_implementation() == "PyPy", reason="PyPy")
def test_type():
t = cairo.Antialias
assert int in t.__mro__
assert isinstance(t(42), int)
assert isinstance(t(0), int)
assert issubclass(t, int)
with pytest.raises(TypeError):
t()
with pytest.raises(TypeError):
t(object())
with pytest.raises(TypeError):
type("foo", (t,), {})
assert hasattr(t, "DEFAULT")
assert t.DEFAULT == 0
assert t.__name__ == "Antialias"
assert t.__module__ == "cairo"
assert repr(t.DEFAULT) == "cairo.Antialias.DEFAULT"
assert repr(t(123456)) == "123456"
assert repr(t(0)) == "cairo.Antialias.DEFAULT"
assert str(t(0)) == "0"
assert isinstance(cairo.ANTIALIAS_DEFAULT, t)
def test_misc():
cairo.Status.JBIG2_GLOBAL_MISSING
def test_format_methods():
assert cairo.Format.RGB24.stride_for_width(8) == 32
assert cairo.Format.stride_for_width(cairo.Format.RGB24, 8) == 32
def test_text_cluster_flags():
assert cairo.TextClusterFlags.BACKWARD == 1
def test_surface_observer_mode():
assert cairo.SurfaceObserverMode.NORMAL == 0
def test_aliases():
types_ = [
cairo.Antialias,
cairo.Content,
cairo.Extend,
cairo.FillRule,
cairo.Filter,
cairo.FontWeight,
cairo.FontSlant,
cairo.Format,
cairo.HintMetrics,
cairo.HintStyle,
cairo.LineCap,
cairo.LineJoin,
cairo.Operator,
cairo.PathDataType,
cairo.RegionOverlap,
cairo.SubpixelOrder,
]
if hasattr(cairo, "ColorMode"):
# cairo 1.17.8+
types_.append(cairo.ColorMode)
if hasattr(cairo, "Dither"):
# cairo 1.18.0+
types_.append(cairo.Dither)
def get_prefix(t):
name = t.__name__
# special case..
if name == "PathDataType":
name = "Path"
return "_".join([s.upper() for s in re.findall('[A-Z][^A-Z]*', name)])
for t in types_:
for name in dir(t):
if name.upper() != name:
continue
value = getattr(t, name)
assert isinstance(value, t)
prefix = get_prefix(t)
assert getattr(cairo, f"{prefix}_{name}") == value
for name in dir(cairo):
for t in types_:
prefix = get_prefix(t)
if name.startswith(f"{prefix}_"):
postfix = name[len(prefix) + 1:]
value = getattr(cairo, name)
assert getattr(t, postfix) == value
# some enums are different, check manually
assert cairo.SVG_VERSION_1_1 == cairo.SVGVersion.VERSION_1_1
assert isinstance(cairo.SVG_VERSION_1_1, cairo.SVGVersion)
assert isinstance(cairo.SVGVersion.VERSION_1_1, cairo.SVGVersion)
assert cairo.SVG_VERSION_1_2 == cairo.SVGVersion.VERSION_1_2
assert isinstance(cairo.SVG_VERSION_1_2, cairo.SVGVersion)
assert isinstance(cairo.SVGVersion.VERSION_1_2, cairo.SVGVersion)
assert cairo.PDF_VERSION_1_4 == cairo.PDFVersion.VERSION_1_4
assert isinstance(cairo.PDF_VERSION_1_4, cairo.PDFVersion)
assert isinstance(cairo.PDFVersion.VERSION_1_4, cairo.PDFVersion)
assert cairo.PDF_VERSION_1_5 == cairo.PDFVersion.VERSION_1_5
assert isinstance(cairo.PDF_VERSION_1_5, cairo.PDFVersion)
assert isinstance(cairo.PDFVersion.VERSION_1_5, cairo.PDFVersion)
assert cairo.PS_LEVEL_2 == cairo.PSLevel.LEVEL_2
assert isinstance(cairo.PS_LEVEL_2, cairo.PSLevel)
assert isinstance(cairo.PSLevel.LEVEL_2, cairo.PSLevel)
assert cairo.PS_LEVEL_3 == cairo.PSLevel.LEVEL_3
assert isinstance(cairo.PS_LEVEL_3, cairo.PSLevel)
assert isinstance(cairo.PSLevel.LEVEL_3, cairo.PSLevel)
def test_pickle():
# These constants used to be plain int. Try to pickle to int so that
# there is no dependency on pycairo when unpickling.
value = cairo.Antialias(42)
new_value = pickle.loads(pickle.dumps(value))
assert type(new_value) is int
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