from __future__ import annotations import copy import os import re import shutil import sys from io import BytesIO from pathlib import Path from typing import Any, BinaryIO import pytest from packaging.version import parse as parse_version from PIL import Image, ImageDraw, ImageFont, features from PIL._typing import StrOrBytesPath from .helper import ( assert_image_equal, assert_image_equal_tofile, assert_image_similar_tofile, is_win32, skip_unless_feature, skip_unless_feature_version, ) FONT_PATH = "Tests/fonts/FreeMono.ttf" FONT_SIZE = 20 TEST_TEXT = "hey you\nyou are awesome\nthis looks awkward" pytestmark = skip_unless_feature("freetype2") def test_sanity() -> None: assert re.search(r"\d+\.\d+\.\d+$", features.version_module("freetype2")) @pytest.fixture( scope="module", params=[ pytest.param(ImageFont.Layout.BASIC), pytest.param(ImageFont.Layout.RAQM, marks=skip_unless_feature("raqm")), ], ) def layout_engine(request: pytest.FixtureRequest) -> ImageFont.Layout: return request.param @pytest.fixture(scope="module") def font(layout_engine: ImageFont.Layout) -> ImageFont.FreeTypeFont: return ImageFont.truetype(FONT_PATH, FONT_SIZE, layout_engine=layout_engine) def test_font_properties(font: ImageFont.FreeTypeFont) -> None: assert font.path == FONT_PATH assert font.size == FONT_SIZE font_copy = font.font_variant() assert font_copy.path == FONT_PATH assert font_copy.size == FONT_SIZE font_copy = font.font_variant(size=FONT_SIZE + 1) assert font_copy.size == FONT_SIZE + 1 second_font_path = "Tests/fonts/DejaVuSans/DejaVuSans.ttf" font_copy = font.font_variant(font=second_font_path) assert font_copy.path == second_font_path def _render( font: StrOrBytesPath | BinaryIO, layout_engine: ImageFont.Layout ) -> Image.Image: txt = "Hello World!" ttf = ImageFont.truetype(font, FONT_SIZE, layout_engine=layout_engine) ttf.getbbox(txt) img = Image.new("RGB", (256, 64), "white") d = ImageDraw.Draw(img) d.text((10, 10), txt, font=ttf, fill="black") return img @pytest.mark.parametrize("font", (FONT_PATH, Path(FONT_PATH))) def test_font_with_name(layout_engine: ImageFont.Layout, font: str | Path) -> None: _render(font, layout_engine) def test_font_with_filelike(layout_engine: ImageFont.Layout) -> None: def _font_as_bytes() -> BytesIO: with open(FONT_PATH, "rb") as f: font_bytes = BytesIO(f.read()) return font_bytes ttf = ImageFont.truetype(_font_as_bytes(), FONT_SIZE, layout_engine=layout_engine) ttf_copy = ttf.font_variant() assert ttf_copy.font_bytes == ttf.font_bytes _render(_font_as_bytes(), layout_engine) # Usage note: making two fonts from the same buffer fails. # shared_bytes = _font_as_bytes() # _render(shared_bytes) # with pytest.raises(Exception): # _render(shared_bytes) def test_font_with_open_file(layout_engine: ImageFont.Layout) -> None: with open(FONT_PATH, "rb") as f: _render(f, layout_engine) def test_render_equal(layout_engine: ImageFont.Layout) -> None: img_path = _render(FONT_PATH, layout_engine) with open(FONT_PATH, "rb") as f: font_filelike = BytesIO(f.read()) img_filelike = _render(font_filelike, layout_engine) assert_image_equal(img_path, img_filelike) def test_non_ascii_path(tmp_path: Path, layout_engine: ImageFont.Layout) -> None: tempfile = str(tmp_path / ("temp_" + chr(128) + ".ttf")) try: shutil.copy(FONT_PATH, tempfile) except UnicodeEncodeError: pytest.skip("Non-ASCII path could not be created") ImageFont.truetype(tempfile, FONT_SIZE, layout_engine=layout_engine) def test_transparent_background(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGBA", size=(300, 100)) draw = ImageDraw.Draw(im) txt = "Hello World!" draw.text((10, 10), txt, font=font) target = "Tests/images/transparent_background_text.png" assert_image_similar_tofile(im, target, 4.09) target = "Tests/images/transparent_background_text_L.png" assert_image_similar_tofile(im.convert("L"), target, 0.01) def test_I16(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="I;16", size=(300, 100)) draw = ImageDraw.Draw(im) txt = "Hello World!" draw.text((10, 10), txt, fill=0xFFFE, font=font) assert im.getpixel((12, 14)) == 0xFFFE target = "Tests/images/transparent_background_text_L.png" assert_image_similar_tofile(im.convert("L"), target, 0.01) def test_textbbox_equal(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) txt = "Hello World!" bbox = draw.textbbox((10, 10), txt, font) draw.text((10, 10), txt, font=font) draw.rectangle(bbox) assert_image_similar_tofile(im, "Tests/images/rectangle_surrounding_text.png", 2.5) @pytest.mark.parametrize( "text, mode, fontname, size, length_basic, length_raqm", ( # basic test ("text", "L", "FreeMono.ttf", 15, 36, 36), ("text", "1", "FreeMono.ttf", 15, 36, 36), # issue 4177 ("rrr", "L", "DejaVuSans/DejaVuSans.ttf", 18, 21, 22.21875), ("rrr", "1", "DejaVuSans/DejaVuSans.ttf", 18, 24, 22.21875), # test 'l' not including extra margin # using exact value 2047 / 64 for raqm, checked with debugger ("ill", "L", "OpenSansCondensed-LightItalic.ttf", 63, 33, 31.984375), ("ill", "1", "OpenSansCondensed-LightItalic.ttf", 63, 33, 31.984375), ), ) def test_getlength( text: str, mode: str, fontname: str, size: int, layout_engine: ImageFont.Layout, length_basic: int, length_raqm: float, ) -> None: f = ImageFont.truetype("Tests/fonts/" + fontname, size, layout_engine=layout_engine) im = Image.new(mode, (1, 1), 0) d = ImageDraw.Draw(im) if layout_engine == ImageFont.Layout.BASIC: length = d.textlength(text, f) assert length == length_basic else: # disable kerning, kerning metrics changed length = d.textlength(text, f, features=["-kern"]) assert length == length_raqm def test_float_size() -> None: lengths = [] for size in (48, 48.5, 49): f = ImageFont.truetype( "Tests/fonts/NotoSans-Regular.ttf", size, layout_engine=layout_engine ) lengths.append(f.getlength("text")) assert lengths[0] != lengths[1] != lengths[2] def test_render_multiline(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) line_spacing = font.getbbox("A")[3] + 4 lines = TEST_TEXT.split("\n") y = 0 for line in lines: draw.text((0, y), line, font=font) y += line_spacing # some versions of freetype have different horizontal spacing. # setting a tight epsilon, I'm showing the original test failure # at epsilon = ~38. assert_image_similar_tofile(im, "Tests/images/multiline_text.png", 6.2) def test_render_multiline_text(font: ImageFont.FreeTypeFont) -> None: # Test that text() correctly connects to multiline_text() # and that align defaults to left im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) draw.text((0, 0), TEST_TEXT, font=font) assert_image_similar_tofile(im, "Tests/images/multiline_text.png", 0.01) # Test that text() can pass on additional arguments # to multiline_text() draw.text( (0, 0), TEST_TEXT, fill=None, font=font, anchor=None, spacing=4, align="left" ) draw.text((0, 0), TEST_TEXT, None, font, None, 4, "left") @pytest.mark.parametrize( "align, ext", (("left", ""), ("center", "_center"), ("right", "_right")) ) def test_render_multiline_text_align( font: ImageFont.FreeTypeFont, align: str, ext: str ) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) draw.multiline_text((0, 0), TEST_TEXT, font=font, align=align) assert_image_similar_tofile(im, f"Tests/images/multiline_text{ext}.png", 0.01) def test_unknown_align(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) # Act/Assert with pytest.raises(ValueError): draw.multiline_text((0, 0), TEST_TEXT, font=font, align="unknown") def test_draw_align(font: ImageFont.FreeTypeFont) -> None: im = Image.new("RGB", (300, 100), "white") draw = ImageDraw.Draw(im) line = "some text" draw.text((100, 40), line, (0, 0, 0), font=font, align="left") def test_multiline_bbox(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) # Test that textbbox() correctly connects to multiline_textbbox() assert draw.textbbox((0, 0), TEST_TEXT, font=font) == draw.multiline_textbbox( (0, 0), TEST_TEXT, font=font ) # Test that multiline_textbbox corresponds to ImageFont.textbbox() # for single line text assert font.getbbox("A") == draw.multiline_textbbox((0, 0), "A", font=font) # Test that textbbox() can pass on additional arguments # to multiline_textbbox() draw.textbbox((0, 0), TEST_TEXT, font=font, spacing=4) def test_multiline_width(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) assert ( draw.textbbox((0, 0), "longest line", font=font)[2] == draw.multiline_textbbox((0, 0), "longest line\nline", font=font)[2] ) def test_multiline_spacing(font: ImageFont.FreeTypeFont) -> None: im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) draw.multiline_text((0, 0), TEST_TEXT, font=font, spacing=10) assert_image_similar_tofile(im, "Tests/images/multiline_text_spacing.png", 2.5) @pytest.mark.parametrize( "orientation", (Image.Transpose.ROTATE_90, Image.Transpose.ROTATE_270) ) def test_rotated_transposed_font( font: ImageFont.FreeTypeFont, orientation: Image.Transpose ) -> None: img_gray = Image.new("L", (100, 100)) draw = ImageDraw.Draw(img_gray) word = "testing" transposed_font = ImageFont.TransposedFont(font, orientation=orientation) # Original font draw.font = font bbox_a = draw.textbbox((10, 10), word) # Rotated font draw.font = transposed_font bbox_b = draw.textbbox((20, 20), word) # Check (w, h) of box a is (h, w) of box b assert ( bbox_a[2] - bbox_a[0], bbox_a[3] - bbox_a[1], ) == ( bbox_b[3] - bbox_b[1], bbox_b[2] - bbox_b[0], ) # Check top left co-ordinates are correct assert bbox_b[:2] == (20, 20) # text length is undefined for vertical text with pytest.raises(ValueError): draw.textlength(word) @pytest.mark.parametrize( "orientation", ( None, Image.Transpose.ROTATE_180, Image.Transpose.FLIP_LEFT_RIGHT, Image.Transpose.FLIP_TOP_BOTTOM, ), ) def test_unrotated_transposed_font( font: ImageFont.FreeTypeFont, orientation: Image.Transpose ) -> None: img_gray = Image.new("L", (100, 100)) draw = ImageDraw.Draw(img_gray) word = "testing" transposed_font = ImageFont.TransposedFont(font, orientation=orientation) # Original font draw.font = font bbox_a = draw.textbbox((10, 10), word) length_a = draw.textlength(word) # Rotated font draw.font = transposed_font bbox_b = draw.textbbox((20, 20), word) length_b = draw.textlength(word) # Check boxes a and b are same size assert ( bbox_a[2] - bbox_a[0], bbox_a[3] - bbox_a[1], ) == ( bbox_b[2] - bbox_b[0], bbox_b[3] - bbox_b[1], ) # Check top left co-ordinates are correct assert bbox_b[:2] == (20, 20) assert length_a == length_b @pytest.mark.parametrize( "orientation", (Image.Transpose.ROTATE_90, Image.Transpose.ROTATE_270) ) def test_rotated_transposed_font_get_mask( font: ImageFont.FreeTypeFont, orientation: Image.Transpose ) -> None: # Arrange text = "mask this" transposed_font = ImageFont.TransposedFont(font, orientation=orientation) # Act mask = transposed_font.getmask(text) # Assert assert mask.size == (13, 108) @pytest.mark.parametrize( "orientation", ( None, Image.Transpose.ROTATE_180, Image.Transpose.FLIP_LEFT_RIGHT, Image.Transpose.FLIP_TOP_BOTTOM, ), ) def test_unrotated_transposed_font_get_mask( font: ImageFont.FreeTypeFont, orientation: Image.Transpose ) -> None: # Arrange text = "mask this" transposed_font = ImageFont.TransposedFont(font, orientation=orientation) # Act mask = transposed_font.getmask(text) # Assert assert mask.size == (108, 13) def test_free_type_font_get_name(font: ImageFont.FreeTypeFont) -> None: assert ("FreeMono", "Regular") == font.getname() def test_free_type_font_get_metrics(font: ImageFont.FreeTypeFont) -> None: ascent, descent = font.getmetrics() assert isinstance(ascent, int) assert isinstance(descent, int) assert (ascent, descent) == (16, 4) def test_free_type_font_get_mask(font: ImageFont.FreeTypeFont) -> None: # Arrange text = "mask this" # Act mask = font.getmask(text) # Assert assert mask.size == (108, 13) def test_load_path_not_found() -> None: # Arrange filename = "somefilenamethatdoesntexist.ttf" # Act/Assert with pytest.raises(OSError): ImageFont.load_path(filename) with pytest.raises(OSError): ImageFont.truetype(filename) def test_load_non_font_bytes() -> None: with open("Tests/images/hopper.jpg", "rb") as f: with pytest.raises(OSError): ImageFont.truetype(f) def test_default_font() -> None: # Arrange txt = "This is a default font using FreeType support." im = Image.new(mode="RGB", size=(300, 100)) draw = ImageDraw.Draw(im) # Act default_font = ImageFont.load_default() draw.text((10, 10), txt, font=default_font) larger_default_font = ImageFont.load_default(size=14) draw.text((10, 60), txt, font=larger_default_font) # Assert assert_image_equal_tofile(im, "Tests/images/default_font_freetype.png") @pytest.mark.parametrize("mode", (None, "1", "RGBA")) def test_getbbox(font: ImageFont.FreeTypeFont, mode: str | None) -> None: assert (0, 4, 12, 16) == font.getbbox("A", mode) def test_getbbox_empty(font: ImageFont.FreeTypeFont) -> None: # issue #2614, should not crash. assert (0, 0, 0, 0) == font.getbbox("") def test_render_empty(font: ImageFont.FreeTypeFont) -> None: # issue 2666 im = Image.new(mode="RGB", size=(300, 100)) target = im.copy() draw = ImageDraw.Draw(im) # should not crash here. draw.text((10, 10), "", font=font) assert_image_equal(im, target) def test_unicode_extended(layout_engine: ImageFont.Layout) -> None: # issue #3777 text = "A\u278A\U0001F12B" target = "Tests/images/unicode_extended.png" ttf = ImageFont.truetype( "Tests/fonts/NotoSansSymbols-Regular.ttf", FONT_SIZE, layout_engine=layout_engine, ) img = Image.new("RGB", (100, 60)) d = ImageDraw.Draw(img) d.text((10, 10), text, font=ttf) # fails with 14.7 assert_image_similar_tofile(img, target, 6.2) @pytest.mark.parametrize( "platform, font_directory", (("linux", "/usr/local/share/fonts"), ("darwin", "/System/Library/Fonts")), ) @pytest.mark.skipif(is_win32(), reason="requires Unix or macOS") def test_find_font( monkeypatch: pytest.MonkeyPatch, platform: str, font_directory: str ) -> None: def _test_fake_loading_font(path_to_fake: str, fontname: str) -> None: # Make a copy of FreeTypeFont so we can patch the original free_type_font = copy.deepcopy(ImageFont.FreeTypeFont) with monkeypatch.context() as m: m.setattr(ImageFont, "_FreeTypeFont", free_type_font, raising=False) def loadable_font( filepath: str, size: int, index: int, encoding: str, *args: Any ): if filepath == path_to_fake: return ImageFont._FreeTypeFont( FONT_PATH, size, index, encoding, *args ) return ImageFont._FreeTypeFont(filepath, size, index, encoding, *args) m.setattr(ImageFont, "FreeTypeFont", loadable_font) font = ImageFont.truetype(fontname) # Make sure it's loaded name = font.getname() assert ("FreeMono", "Regular") == name # A lot of mocking here - this is more for hitting code and # catching syntax like errors monkeypatch.setattr(sys, "platform", platform) if platform == "linux": monkeypatch.setenv("XDG_DATA_DIRS", "/usr/share/:/usr/local/share/") def fake_walker(path: str) -> list[tuple[str, list[str], list[str]]]: if path == font_directory: return [ ( path, [], ["Arial.ttf", "Single.otf", "Duplicate.otf", "Duplicate.ttf"], ) ] return [(path, [], ["some_random_font.ttf"])] monkeypatch.setattr(os, "walk", fake_walker) # Test that the font loads both with and without the extension _test_fake_loading_font(font_directory + "/Arial.ttf", "Arial.ttf") _test_fake_loading_font(font_directory + "/Arial.ttf", "Arial") # Test that non-ttf fonts can be found without the extension _test_fake_loading_font(font_directory + "/Single.otf", "Single") # Test that ttf fonts are preferred if the extension is not specified _test_fake_loading_font(font_directory + "/Duplicate.ttf", "Duplicate") def test_imagefont_getters(font: ImageFont.FreeTypeFont) -> None: assert font.getmetrics() == (16, 4) assert font.font.ascent == 16 assert font.font.descent == 4 assert font.font.height == 20 assert font.font.x_ppem == 20 assert font.font.y_ppem == 20 assert font.font.glyphs == 4177 assert font.getbbox("A") == (0, 4, 12, 16) assert font.getbbox("AB") == (0, 4, 24, 16) assert font.getbbox("M") == (0, 4, 12, 16) assert font.getbbox("y") == (0, 7, 12, 20) assert font.getbbox("a") == (0, 7, 12, 16) assert font.getlength("A") == 12 assert font.getlength("AB") == 24 assert font.getlength("M") == 12 assert font.getlength("y") == 12 assert font.getlength("a") == 12 @pytest.mark.parametrize("stroke_width", (0, 2)) def test_getsize_stroke(font: ImageFont.FreeTypeFont, stroke_width: int) -> None: assert font.getbbox("A", stroke_width=stroke_width) == ( 0 - stroke_width, 4 - stroke_width, 12 + stroke_width, 16 + stroke_width, ) def test_complex_font_settings() -> None: t = ImageFont.truetype(FONT_PATH, FONT_SIZE, layout_engine=ImageFont.Layout.BASIC) with pytest.raises(KeyError): t.getmask("абвг", direction="rtl") with pytest.raises(KeyError): t.getmask("абвг", features=["-kern"]) with pytest.raises(KeyError): t.getmask("абвг", language="sr") def test_variation_get(font: ImageFont.FreeTypeFont) -> None: 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_text(font: ImageFont.FreeTypeFont, path: str, epsilon: float) -> None: im = Image.new("RGB", (100, 75), "white") d = ImageDraw.Draw(im) d.text((10, 10), "Text", font=font, fill="black") try: assert_image_similar_tofile(im, path, epsilon) except AssertionError: if "_adobe" in path: path = path.replace("_adobe", "_adobe_older_harfbuzz") assert_image_similar_tofile(im, path, epsilon) else: raise def test_variation_set_by_name(font: ImageFont.FreeTypeFont) -> None: 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) _check_text(font, "Tests/images/variation_adobe.png", 11) for name in ["Bold", b"Bold"]: font.set_variation_by_name(name) assert font.getname()[1] == "Bold" _check_text(font, "Tests/images/variation_adobe_name.png", 16) font = ImageFont.truetype("Tests/fonts/TINY5x3GX.ttf", 36) _check_text(font, "Tests/images/variation_tiny.png", 40) for name in ["200", b"200"]: font.set_variation_by_name(name) assert font.getname()[1] == "200" _check_text(font, "Tests/images/variation_tiny_name.png", 40) def test_variation_set_by_axes(font: ImageFont.FreeTypeFont) -> None: 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]) _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]) _check_text(font, "Tests/images/variation_tiny_axes.png", 32.5) @pytest.mark.parametrize( "anchor, left, top", ( # test horizontal anchors ("ls", 0, -36), ("ms", -64, -36), ("rs", -128, -36), # test vertical anchors ("ma", -64, 16), ("mt", -64, 0), ("mm", -64, -17), ("mb", -64, -44), ("md", -64, -51), ), ids=("ls", "ms", "rs", "ma", "mt", "mm", "mb", "md"), ) def test_anchor( layout_engine: ImageFont.Layout, anchor: str, left: int, top: int ) -> None: name, text = "quick", "Quick" path = f"Tests/images/test_anchor_{name}_{anchor}.png" if 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=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) @pytest.mark.parametrize( "anchor, align", ( # test horizontal anchors ("lm", "left"), ("lm", "center"), ("lm", "right"), ("mm", "left"), ("mm", "center"), ("mm", "right"), ("rm", "left"), ("rm", "center"), ("rm", "right"), # test vertical anchors ("ma", "center"), # ("mm", "center"), # duplicate ("md", "center"), ), ) def test_anchor_multiline( layout_engine: ImageFont.Layout, anchor: str, align: str ) -> None: target = f"Tests/images/test_anchor_multiline_{anchor}_{align}.png" text = "a\nlong\ntext sample" f = ImageFont.truetype( "Tests/fonts/NotoSans-Regular.ttf", 48, layout_engine=layout_engine ) # test render im = Image.new("RGB", (600, 400), "white") d = ImageDraw.Draw(im) d.line(((0, 200), (600, 200)), "gray") d.line(((300, 0), (300, 400)), "gray") d.multiline_text((300, 200), text, fill="black", anchor=anchor, font=f, align=align) assert_image_similar_tofile(im, target, 4) def test_anchor_invalid(font: ImageFont.FreeTypeFont) -> None: im = Image.new("RGB", (100, 100), "white") d = ImageDraw.Draw(im) d.font = font for anchor in ["", "l", "a", "lax", "sa", "xa", "lx"]: with pytest.raises(ValueError): font.getmask2("hello", anchor=anchor) with pytest.raises(ValueError): font.getbbox("hello", anchor=anchor) with pytest.raises(ValueError): d.text((0, 0), "hello", anchor=anchor) with pytest.raises(ValueError): d.textbbox((0, 0), "hello", anchor=anchor) with pytest.raises(ValueError): d.multiline_text((0, 0), "foo\nbar", anchor=anchor) with pytest.raises(ValueError): d.multiline_textbbox((0, 0), "foo\nbar", anchor=anchor) for anchor in ["lt", "lb"]: with pytest.raises(ValueError): d.multiline_text((0, 0), "foo\nbar", anchor=anchor) with pytest.raises(ValueError): d.multiline_textbbox((0, 0), "foo\nbar", anchor=anchor) @pytest.mark.parametrize("bpp", (1, 2, 4, 8)) def test_bitmap_font(layout_engine: ImageFont.Layout, bpp: int) -> None: text = "Bitmap Font" layout_name = ["basic", "raqm"][layout_engine] target = f"Tests/images/bitmap_font_{bpp}_{layout_name}.png" font = ImageFont.truetype( f"Tests/fonts/DejaVuSans/DejaVuSans-24-{bpp}-stripped.ttf", 24, layout_engine=layout_engine, ) im = Image.new("RGB", (160, 35), "white") draw = ImageDraw.Draw(im) draw.text((2, 2), text, "black", font) assert_image_equal_tofile(im, target) def test_bitmap_font_stroke(layout_engine: ImageFont.Layout) -> None: text = "Bitmap Font" layout_name = ["basic", "raqm"][layout_engine] target = f"Tests/images/bitmap_font_stroke_{layout_name}.png" font = ImageFont.truetype( "Tests/fonts/DejaVuSans/DejaVuSans-24-8-stripped.ttf", 24, layout_engine=layout_engine, ) im = Image.new("RGB", (160, 35), "white") draw = ImageDraw.Draw(im) draw.text((2, 2), text, "black", font, stroke_width=2, stroke_fill="red") assert_image_similar_tofile(im, target, 0.03) @pytest.mark.parametrize("embedded_color", (False, True)) def test_bitmap_blend(layout_engine: ImageFont.Layout, embedded_color: bool) -> None: font = ImageFont.truetype( "Tests/fonts/EBDTTestFont.ttf", size=64, layout_engine=layout_engine ) im = Image.new("RGBA", (128, 96), "white") d = ImageDraw.Draw(im) d.text((16, 16), "AA", font=font, fill="#8E2F52", embedded_color=embedded_color) assert_image_equal_tofile(im, "Tests/images/bitmap_font_blend.png") def test_standard_embedded_color(layout_engine: ImageFont.Layout) -> None: txt = "Hello World!" ttf = ImageFont.truetype(FONT_PATH, 40, layout_engine=layout_engine) ttf.getbbox(txt) im = Image.new("RGB", (300, 64), "white") d = ImageDraw.Draw(im) d.text((10, 10), txt, font=ttf, fill="#fa6", embedded_color=True) assert_image_similar_tofile(im, "Tests/images/standard_embedded.png", 3.1) @pytest.mark.parametrize("fontmode", ("1", "L", "RGBA")) def test_float_coord(layout_engine: ImageFont.Layout, fontmode: str) -> None: txt = "Hello World!" ttf = ImageFont.truetype(FONT_PATH, 40, layout_engine=layout_engine) im = Image.new("RGB", (300, 64), "white") d = ImageDraw.Draw(im) if fontmode == "1": d.fontmode = "1" embedded_color = fontmode == "RGBA" d.text((9.5, 9.5), txt, font=ttf, fill="#fa6", embedded_color=embedded_color) try: assert_image_similar_tofile(im, "Tests/images/text_float_coord.png", 3.9) except AssertionError: if fontmode == "1" and layout_engine == ImageFont.Layout.BASIC: assert_image_similar_tofile( im, "Tests/images/text_float_coord_1_alt.png", 1 ) else: raise def test_cbdt(layout_engine: ImageFont.Layout) -> None: try: font = ImageFont.truetype( "Tests/fonts/CBDTTestFont.ttf", size=64, layout_engine=layout_engine ) im = Image.new("RGB", (128, 96), "white") d = ImageDraw.Draw(im) d.text((16, 16), "AB", font=font, embedded_color=True) assert_image_equal_tofile(im, "Tests/images/cbdt.png") except OSError as e: # pragma: no cover assert str(e) in ("unimplemented feature", "unknown file format") pytest.skip("freetype compiled without libpng or CBDT support") def test_cbdt_mask(layout_engine: ImageFont.Layout) -> None: try: font = ImageFont.truetype( "Tests/fonts/CBDTTestFont.ttf", size=64, layout_engine=layout_engine ) im = Image.new("RGB", (128, 96), "white") d = ImageDraw.Draw(im) d.text((16, 16), "AB", "green", font=font) assert_image_equal_tofile(im, "Tests/images/cbdt_mask.png") except OSError as e: # pragma: no cover assert str(e) in ("unimplemented feature", "unknown file format") pytest.skip("freetype compiled without libpng or CBDT support") def test_sbix(layout_engine: ImageFont.Layout) -> None: try: font = ImageFont.truetype( "Tests/fonts/chromacheck-sbix.woff", size=300, layout_engine=layout_engine ) im = Image.new("RGB", (400, 400), "white") d = ImageDraw.Draw(im) d.text((50, 50), "\uE901", font=font, embedded_color=True) assert_image_similar_tofile(im, "Tests/images/chromacheck-sbix.png", 1) except OSError as e: # pragma: no cover assert str(e) in ("unimplemented feature", "unknown file format") pytest.skip("freetype compiled without libpng or SBIX support") def test_sbix_mask(layout_engine: ImageFont.Layout) -> None: try: font = ImageFont.truetype( "Tests/fonts/chromacheck-sbix.woff", size=300, layout_engine=layout_engine ) im = Image.new("RGB", (400, 400), "white") d = ImageDraw.Draw(im) d.text((50, 50), "\uE901", (100, 0, 0), font=font) assert_image_similar_tofile(im, "Tests/images/chromacheck-sbix_mask.png", 1) except OSError as e: # pragma: no cover assert str(e) in ("unimplemented feature", "unknown file format") pytest.skip("freetype compiled without libpng or SBIX support") @skip_unless_feature_version("freetype2", "2.10.0") def test_colr(layout_engine: ImageFont.Layout) -> None: font = ImageFont.truetype( "Tests/fonts/BungeeColor-Regular_colr_Windows.ttf", size=64, layout_engine=layout_engine, ) im = Image.new("RGB", (300, 75), "white") d = ImageDraw.Draw(im) d.text((15, 5), "Bungee", font=font, embedded_color=True) assert_image_similar_tofile(im, "Tests/images/colr_bungee.png", 21) @skip_unless_feature_version("freetype2", "2.10.0") def test_colr_mask(layout_engine: ImageFont.Layout) -> None: font = ImageFont.truetype( "Tests/fonts/BungeeColor-Regular_colr_Windows.ttf", size=64, layout_engine=layout_engine, ) im = Image.new("RGB", (300, 75), "white") d = ImageDraw.Draw(im) d.text((15, 5), "Bungee", "black", font=font) assert_image_similar_tofile(im, "Tests/images/colr_bungee_mask.png", 22) def test_woff2(layout_engine: ImageFont.Layout) -> None: try: font = ImageFont.truetype( "Tests/fonts/OpenSans.woff2", size=64, layout_engine=layout_engine, ) except OSError as e: assert str(e) in ("unimplemented feature", "unknown file format") pytest.skip("FreeType compiled without brotli or WOFF2 support") im = Image.new("RGB", (350, 100), "white") d = ImageDraw.Draw(im) d.text((15, 5), "OpenSans", "black", font=font) assert_image_similar_tofile(im, "Tests/images/test_woff2.png", 5) def test_render_mono_size() -> None: # issue 4177 im = Image.new("P", (100, 30), "white") draw = ImageDraw.Draw(im) ttf = ImageFont.truetype( "Tests/fonts/DejaVuSans/DejaVuSans.ttf", 18, layout_engine=ImageFont.Layout.BASIC, ) draw.text((10, 10), "r" * 10, "black", ttf) assert_image_equal_tofile(im, "Tests/images/text_mono.gif") def test_too_many_characters(font: ImageFont.FreeTypeFont) -> None: with pytest.raises(ValueError): font.getlength("A" * 1_000_001) with pytest.raises(ValueError): font.getbbox("A" * 1_000_001) with pytest.raises(ValueError): font.getmask2("A" * 1_000_001) transposed_font = ImageFont.TransposedFont(font) with pytest.raises(ValueError): transposed_font.getlength("A" * 1_000_001) imagefont = ImageFont.ImageFont() with pytest.raises(ValueError): imagefont.getlength("A" * 1_000_001) with pytest.raises(ValueError): imagefont.getbbox("A" * 1_000_001) with pytest.raises(ValueError): imagefont.getmask("A" * 1_000_001) @pytest.mark.parametrize( "test_file", [ "Tests/fonts/oom-e8e927ba6c0d38274a37c1567560eb33baf74627.ttf", "Tests/fonts/oom-4da0210eb7081b0bf15bf16cc4c52ce02c1e1bbc.ttf", ], ) def test_oom(test_file: str) -> None: with open(test_file, "rb") as f: font = ImageFont.truetype(BytesIO(f.read())) with pytest.raises(Image.DecompressionBombError): font.getmask("Test Text") def test_raqm_missing_warning(monkeypatch: pytest.MonkeyPatch) -> None: monkeypatch.setattr(ImageFont.core, "HAVE_RAQM", False) with pytest.warns(UserWarning) as record: font = ImageFont.truetype( FONT_PATH, FONT_SIZE, layout_engine=ImageFont.Layout.RAQM ) assert font.layout_engine == ImageFont.Layout.BASIC assert str(record[-1].message) == ( "Raqm layout was requested, but Raqm is not available. " "Falling back to basic layout." ) @pytest.mark.parametrize("size", [-1, 0]) def test_invalid_truetype_sizes_raise_valueerror( layout_engine: ImageFont.Layout, size: int ) -> None: with pytest.raises(ValueError): ImageFont.truetype(FONT_PATH, size, layout_engine=layout_engine)