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Use assert_image_equal* when similarity is zero

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This commit is contained in:
Andrew Murray 2026-02-06 08:34:13 +11:00
parent 2a2638e58f
commit 18cab11437
6 changed files with 9 additions and 11 deletions
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4
Tests/test_file_gif.py
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@ -399,7 +399,7 @@ def test_save_netpbm_bmp_mode(tmp_path: Path) -> None:
b = BytesIO() b = BytesIO()
GifImagePlugin._save_netpbm(img_rgb, b, tempfile) GifImagePlugin._save_netpbm(img_rgb, b, tempfile)
with Image.open(tempfile) as reloaded: with Image.open(tempfile) as reloaded:
assert_image_similar(img_rgb, reloaded.convert("RGB"), 0) assert_image_equal(img_rgb, reloaded.convert("RGB"))
@pytest.mark.skipif(not netpbm_available(), reason="Netpbm not available") @pytest.mark.skipif(not netpbm_available(), reason="Netpbm not available")
@ -411,7 +411,7 @@ def test_save_netpbm_l_mode(tmp_path: Path) -> None:
b = BytesIO() b = BytesIO()
GifImagePlugin._save_netpbm(img_l, b, tempfile) GifImagePlugin._save_netpbm(img_l, b, tempfile)
with Image.open(tempfile) as reloaded: with Image.open(tempfile) as reloaded:
assert_image_similar(img_l, reloaded.convert("L"), 0) assert_image_equal(img_l, reloaded.convert("L"))
def test_seek() -> None: def test_seek() -> None:

2
Tests/test_file_libtiff.py
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@ -738,7 +738,7 @@ class TestFileLibTiff(LibTiffTestCase):
buffer_io.seek(0) buffer_io.seek(0)
with Image.open(buffer_io) as saved_im: with Image.open(buffer_io) as saved_im:
assert_image_similar(pilim, saved_im, 0) assert_image_equal(pilim, saved_im)
save_bytesio() save_bytesio()
save_bytesio("raw") save_bytesio("raw")

2
Tests/test_file_wmf.py
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@ -18,7 +18,7 @@ def test_load_raw() -> None:
# Currently, support for WMF/EMF is Windows-only # Currently, support for WMF/EMF is Windows-only
im.load() im.load()
# Compare to reference rendering # Compare to reference rendering
assert_image_similar_tofile(im, "Tests/images/drawing_emf_ref.png", 0) assert_image_equal_tofile(im, "Tests/images/drawing_emf_ref.png")
# Test basic WMF open and rendering # Test basic WMF open and rendering
with Image.open("Tests/images/drawing.wmf") as im: with Image.open("Tests/images/drawing.wmf") as im:

5
Tests/test_font_pcf.py
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@ -10,7 +10,6 @@ from PIL import FontFile, Image, ImageDraw, ImageFont, PcfFontFile
from .helper import ( from .helper import (
assert_image_equal_tofile, assert_image_equal_tofile,
assert_image_similar_tofile,
skip_unless_feature, skip_unless_feature,
) )
@ -73,7 +72,7 @@ def test_draw(request: pytest.FixtureRequest, tmp_path: Path) -> None:
im = Image.new("L", (130, 30), "white") im = Image.new("L", (130, 30), "white")
draw = ImageDraw.Draw(im) draw = ImageDraw.Draw(im)
draw.text((0, 0), message, "black", font=font) draw.text((0, 0), message, "black", font=font)
assert_image_similar_tofile(im, "Tests/images/test_draw_pbm_target.png", 0) assert_image_equal_tofile(im, "Tests/images/test_draw_pbm_target.png")
def test_textsize(request: pytest.FixtureRequest, tmp_path: Path) -> None: def test_textsize(request: pytest.FixtureRequest, tmp_path: Path) -> None:
@ -100,7 +99,7 @@ def _test_high_characters(
im = Image.new("L", (750, 30), "white") im = Image.new("L", (750, 30), "white")
draw = ImageDraw.Draw(im) draw = ImageDraw.Draw(im)
draw.text((0, 0), message, "black", font=font) draw.text((0, 0), message, "black", font=font)
assert_image_similar_tofile(im, "Tests/images/high_ascii_chars.png", 0) assert_image_equal_tofile(im, "Tests/images/high_ascii_chars.png")
def test_high_characters(request: pytest.FixtureRequest, tmp_path: Path) -> None: def test_high_characters(request: pytest.FixtureRequest, tmp_path: Path) -> None:

3
Tests/test_font_pcf_charsets.py
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@ -10,7 +10,6 @@ from PIL import FontFile, Image, ImageDraw, ImageFont, PcfFontFile
from .helper import ( from .helper import (
assert_image_equal_tofile, assert_image_equal_tofile,
assert_image_similar_tofile,
skip_unless_feature, skip_unless_feature,
) )
@ -85,7 +84,7 @@ def test_draw(request: pytest.FixtureRequest, tmp_path: Path, encoding: str) ->
draw = ImageDraw.Draw(im) draw = ImageDraw.Draw(im)
message = charsets[encoding]["message"].encode(encoding) message = charsets[encoding]["message"].encode(encoding)
draw.text((0, 0), message, "black", font=font) draw.text((0, 0), message, "black", font=font)
assert_image_similar_tofile(im, charsets[encoding]["image1"], 0) assert_image_equal_tofile(im, charsets[encoding]["image1"])
@pytest.mark.parametrize("encoding", ("iso8859-1", "iso8859-2", "cp1250")) @pytest.mark.parametrize("encoding", ("iso8859-1", "iso8859-2", "cp1250"))

4
Tests/test_uploader.py
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@ -1,6 +1,6 @@
from __future__ import annotations from __future__ import annotations
from .helper import assert_image_equal, assert_image_similar, hopper from .helper import assert_image_equal, hopper
def check_upload_equal() -> None: def check_upload_equal() -> None:
@ -12,4 +12,4 @@ def check_upload_equal() -> None:
def check_upload_similar() -> None: def check_upload_similar() -> None:
result = hopper("P").convert("RGB") result = hopper("P").convert("RGB")
target = hopper("RGB") target = hopper("RGB")
assert_image_similar(result, target, 0) assert_image_equal(result, target)