def test_unsupported_module():
# Arrange
module = "unsupported_module"
# Act / Assert
with pytest.raises(ValueError):
features.check_module(module)
with pytest.raises(ValueError):
features.version_module(module)
def test_combine(name, text, dir, anchor, epsilon):
if (parse_version(features.version_module("freetype2")) <
parse_version("2.5.1") and dir == "ttb"):
# FreeType 2.5.1 README: Miscellaneous Changes:
# Improved computation of emulated vertical metrics for TrueType fonts.
pytest.skip("FreeType <2.5.1 has incompatible ttb metrics")
path = f"Tests/images/test_combine_{name}.png"
f = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf", 48)
im = Image.new("RGB", (400, 400), "white")
d = ImageDraw.Draw(im)
d.line(((0, 200), (400, 200)), "gray")
d.line(((200, 0), (200, 400)), "gray")
try:
d.text((200, 200),
text,
fill="black",
anchor=anchor,
direction=dir,
font=f)
except ValueError as ex:
if str(ex) == "libraqm 0.7 or greater required for 'ttb' direction":
pytest.skip("libraqm 0.7 or greater not available")
assert_image_similar_tofile(im, path, epsilon)
def test_write_animation_L(tmp_path):
"""
Convert an animated GIF to animated WebP, then compare the frame count, and first
and last frames to ensure they're visually similar.
"""
with Image.open("Tests/images/iss634.gif") as orig:
assert orig.n_frames > 1
temp_file = str(tmp_path / "temp.webp")
orig.save(temp_file, save_all=True)
with Image.open(temp_file) as im:
assert im.n_frames == orig.n_frames
# Compare first and last frames to the original animated GIF
orig.load()
im.load()
assert_image_similar(im, orig.convert("RGBA"), 32.9)
if is_big_endian():
webp = parse_version(features.version_module("webp"))
if webp < parse_version("1.2.2"):
pytest.skip("Fails with libwebp earlier than 1.2.2")
orig.seek(orig.n_frames - 1)
im.seek(im.n_frames - 1)
orig.load()
im.load()
assert_image_similar(im, orig.convert("RGBA"), 32.9)
def test_anchor(self, anchor, left, left_old, top):
name, text = "quick", "Quick"
path = f"Tests/images/test_anchor_{name}_{anchor}.png"
freetype = parse_version(features.version_module("freetype2"))
if freetype < parse_version("2.4"):
width, height = (129, 44)
left = left_old
elif self.LAYOUT_ENGINE == ImageFont.LAYOUT_RAQM:
width, height = (129, 44)
else:
width, height = (128, 44)
bbox_expected = (left, top, left + width, top + height)
f = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf",
48,
layout_engine=self.LAYOUT_ENGINE)
im = Image.new("RGB", (200, 200), "white")
d = ImageDraw.Draw(im)
d.line(((0, 100), (200, 100)), "gray")
d.line(((100, 0), (100, 200)), "gray")
d.text((100, 100), text, fill="black", anchor=anchor, font=f)
assert d.textbbox((0, 0), text, f, anchor=anchor) == bbox_expected
assert_image_similar_tofile(im, path, 7)
def test_anchor_ttb(anchor):
if parse_version(
features.version_module("freetype2")) < parse_version("2.5.1"):
# FreeType 2.5.1 README: Miscellaneous Changes:
# Improved computation of emulated vertical metrics for TrueType fonts.
pytest.skip("FreeType <2.5.1 has incompatible ttb metrics")
text = "f"
path = f"Tests/images/test_anchor_ttb_{text}_{anchor}.png"
f = ImageFont.truetype("Tests/fonts/NotoSans-Regular.ttf", 120)
im = Image.new("RGB", (200, 400), "white")
d = ImageDraw.Draw(im)
d.line(((0, 200), (200, 200)), "gray")
d.line(((100, 0), (100, 400)), "gray")
try:
d.text((100, 200),
text,
fill="black",
anchor=anchor,
direction="ttb",
font=f)
except ValueError as ex:
if str(ex) == "libraqm 0.7 or greater required for 'ttb' direction":
pytest.skip("libraqm 0.7 or greater not available")
with Image.open(path) as expected:
assert_image_similar(im, expected, 1) # fails at 5
def test_variation_get(self):
font = self.get_font()
freetype = parse_version(features.version_module("freetype2"))
if freetype < parse_version("2.9.1"):
with pytest.raises(NotImplementedError):
font.get_variation_names()
with pytest.raises(NotImplementedError):
font.get_variation_axes()
return
with pytest.raises(OSError):
font.get_variation_names()
with pytest.raises(OSError):
font.get_variation_axes()
font = ImageFont.truetype("Tests/fonts/AdobeVFPrototype.ttf")
assert font.get_variation_names(), [
b"ExtraLight",
b"Light",
b"Regular",
b"Semibold",
b"Bold",
b"Black",
b"Black Medium Contrast",
b"Black High Contrast",
b"Default",
]
assert font.get_variation_axes() == [
{"name": b"Weight", "minimum": 200, "maximum": 900, "default": 389},
{"name": b"Contrast", "minimum": 0, "maximum": 100, "default": 0},
]
font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf")
assert font.get_variation_names() == [
b"20",
b"40",
b"60",
b"80",
b"100",
b"120",
b"140",
b"160",
b"180",
b"200",
b"220",
b"240",
b"260",
b"280",
b"300",
b"Regular",
]
assert font.get_variation_axes() == [
{"name": b"Size", "minimum": 0, "maximum": 300, "default": 0}
]
def check(temp_file):
with Image.open(temp_file) as im:
assert im.n_frames == 2
# Compare first frame to original
im.load()
assert_image_equal(im, frame1.convert("RGBA"))
# Compare second frame to original
if is_big_endian():
webp = parse_version(features.version_module("webp"))
if webp < parse_version("1.2.2"):
pytest.skip("Fails with libwebp earlier than 1.2.2")
im.seek(1)
im.load()
assert_image_equal(im, frame2.convert("RGBA"))
def test_variation_set_by_axes(self):
font = self.get_font()
freetype = parse_version(features.version_module("freetype2"))
if freetype < parse_version("2.9.1"):
with pytest.raises(NotImplementedError):
font.set_variation_by_axes([100])
return
with pytest.raises(OSError):
font.set_variation_by_axes([500, 50])
font = ImageFont.truetype("Tests/fonts/AdobeVFPrototype.ttf", 36)
font.set_variation_by_axes([500, 50])
self._check_text(font, "Tests/images/variation_adobe_axes.png", 11.05)
font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf", 36)
font.set_variation_by_axes([100])
self._check_text(font, "Tests/images/variation_tiny_axes.png", 32.5)
def test_sanity():
# basic smoke test.
# this mostly follows the cms_test outline.
v = ImageCms.versions() # should return four strings
assert v[0] == "1.0.0 pil"
assert list(map(type, v)) == [str, str, str, str]
# internal version number
assert re.search(r"\d+\.\d+(\.\d+)?$",
features.version_module("littlecms2"))
skip_missing()
i = ImageCms.profileToProfile(hopper(), SRGB, SRGB)
assert_image(i, "RGB", (128, 128))
i = hopper()
ImageCms.profileToProfile(i, SRGB, SRGB, inPlace=True)
assert_image(i, "RGB", (128, 128))
t = ImageCms.buildTransform(SRGB, SRGB, "RGB", "RGB")
i = ImageCms.applyTransform(hopper(), t)
assert_image(i, "RGB", (128, 128))
with hopper() as i:
t = ImageCms.buildTransform(SRGB, SRGB, "RGB", "RGB")
ImageCms.applyTransform(hopper(), t, inPlace=True)
assert_image(i, "RGB", (128, 128))
p = ImageCms.createProfile("sRGB")
o = ImageCms.getOpenProfile(SRGB)
t = ImageCms.buildTransformFromOpenProfiles(p, o, "RGB", "RGB")
i = ImageCms.applyTransform(hopper(), t)
assert_image(i, "RGB", (128, 128))
t = ImageCms.buildProofTransform(SRGB, SRGB, SRGB, "RGB", "RGB")
assert t.inputMode == "RGB"
assert t.outputMode == "RGB"
i = ImageCms.applyTransform(hopper(), t)
assert_image(i, "RGB", (128, 128))
# test PointTransform convenience API
hopper().point(t)
def setup_class(self):
freetype = parse_version(features.version_module("freetype2"))
self.metrics = self.METRICS["Default"]
for conditions, metrics in self.METRICS.items():
if not isinstance(conditions, tuple):
continue
for condition in conditions:
version = parse_version(re.sub("[<=>]", "", condition))
if (condition.startswith(">=")
and freetype >= version) or (condition.startswith("<")
and freetype < version):
# Condition was met
continue
# Condition failed
break
else:
# All conditions were met
self.metrics = metrics
def test_variation_set_by_name(self):
font = self.get_font()
freetype = parse_version(features.version_module("freetype2"))
if freetype < parse_version("2.9.1"):
with pytest.raises(NotImplementedError):
font.set_variation_by_name("Bold")
return
with pytest.raises(OSError):
font.set_variation_by_name("Bold")
font = ImageFont.truetype("Tests/fonts/AdobeVFPrototype.ttf", 36)
self._check_text(font, "Tests/images/variation_adobe.png", 11)
for name in ["Bold", b"Bold"]:
font.set_variation_by_name(name)
self._check_text(font, "Tests/images/variation_adobe_name.png", 11)
font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf", 36)
self._check_text(font, "Tests/images/variation_tiny.png", 40)
for name in ["200", b"200"]:
font.set_variation_by_name(name)
self._check_text(font, "Tests/images/variation_tiny_name.png", 40)
def test_version(self):
_webp.WebPDecoderVersion()
_webp.WebPDecoderBuggyAlpha()
assert re.search(r"\d+\.\d+\.\d+$", features.version_module("webp"))
def test_sanity(self):
assert re.search(r"\d+\.\d+\.\d+$",
features.version_module("freetype2"))
def test_version(self):
_avif.AvifCodecVersions()
assert re.search(r"\d+\.\d+\.\d+$", features.version_module("avif"))