Converted addCleanup

Tests/test_decompression_bomb.py

@@ -61,9 +61,8 @@ class TestDecompressionBomb(PillowTestCase):
 
 class TestDecompressionCrop(PillowTestCase):
     def setUp(self):
-        self.src = hopper()
-        self.addCleanup(self.src.close)
-        Image.MAX_IMAGE_PIXELS = self.src.height * self.src.width * 4 - 1
+        width, height = 128, 128
+        Image.MAX_IMAGE_PIXELS = height * width * 4 - 1
 
     def tearDown(self):
         Image.MAX_IMAGE_PIXELS = ORIGINAL_LIMIT
@@ -71,8 +70,9 @@ class TestDecompressionCrop(PillowTestCase):
     def testEnlargeCrop(self):
         # Crops can extend the extents, therefore we should have the
         # same decompression bomb warnings on them.
-        box = (0, 0, self.src.width * 2, self.src.height * 2)
-        pytest.warns(Image.DecompressionBombWarning, self.src.crop, box)
+        with hopper() as src:
+            box = (0, 0, src.width * 2, src.height * 2)
+            pytest.warns(Image.DecompressionBombWarning, src.crop, box)
 
     def test_crop_decompression_checks(self):
 

Tests/test_font_pcf.py

@@ -1,3 +1,4 @@
+import os
 import pytest
 from PIL import FontFile, Image, ImageDraw, ImageFont, PcfFontFile
 
@@ -13,17 +14,23 @@ fontname = "Tests/fonts/10x20-ISO8859-1.pcf"
 message = "hello, world"
 
 
-@skip_unless_feature("zlib")
-class TestFontPcf(PillowTestCase):
-    def save_font(self):
+pytestmark = skip_unless_feature("zlib")
+
+def save_font(request, tmp_path):
     with open(fontname, "rb") as test_file:
         font = PcfFontFile.PcfFontFile(test_file)
     assert isinstance(font, FontFile.FontFile)
     # check the number of characters in the font
     assert len([_f for _f in font.glyph if _f]) == 223
 
-        tempname = self.tempfile("temp.pil")
-        self.addCleanup(self.delete_tempfile, tempname[:-4] + ".pbm")
+    tempname = str(tmp_path / "temp.pil")
+
+    def delete_tempfile():
+        try:
+            os.remove(tempname[:-4] + ".pbm")
+        except OSError:
+            pass  # report?
+    request.addfinalizer(delete_tempfile)
     font.save(tempname)
 
     with Image.open(tempname.replace(".pil", ".pbm")) as loaded:
@@ -35,16 +42,16 @@ class TestFontPcf(PillowTestCase):
             assert f_loaded.read() == f_target.read()
     return tempname
 
-    def test_sanity(self):
-        self.save_font()
+def test_sanity(request, tmp_path):
+    save_font(request, tmp_path)
 
-    def test_invalid_file(self):
+def test_invalid_file():
     with open("Tests/images/flower.jpg", "rb") as fp:
         with pytest.raises(SyntaxError):
             PcfFontFile.PcfFontFile(fp)
 
-    def test_draw(self):
-        tempname = self.save_font()
+def test_draw(request, tmp_path):
+    tempname = save_font(request, tmp_path)
     font = ImageFont.load(tempname)
     im = Image.new("L", (130, 30), "white")
     draw = ImageDraw.Draw(im)
@@ -52,8 +59,8 @@ class TestFontPcf(PillowTestCase):
     with Image.open("Tests/images/test_draw_pbm_target.png") as target:
         assert_image_similar(im, target, 0)
 
-    def test_textsize(self):
-        tempname = self.save_font()
+def test_textsize(request, tmp_path):
+    tempname = save_font(request, tmp_path)
     font = ImageFont.load(tempname)
     for i in range(255):
         (dx, dy) = font.getsize(chr(i))
@@ -63,8 +70,8 @@ class TestFontPcf(PillowTestCase):
         msg = message[: l + 1]
         assert font.getsize(msg) == (len(msg) * 10, 20)
 
-    def _test_high_characters(self, message):
-        tempname = self.save_font()
+def _test_high_characters(request, tmp_path, message):
+    tempname = save_font(request, tmp_path)
     font = ImageFont.load(tempname)
     im = Image.new("L", (750, 30), "white")
     draw = ImageDraw.Draw(im)
@@ -72,8 +79,8 @@ class TestFontPcf(PillowTestCase):
     with Image.open("Tests/images/high_ascii_chars.png") as target:
         assert_image_similar(im, target, 0)
 
-    def test_high_characters(self):
+def test_high_characters(request, tmp_path):
     message = "".join(chr(i + 1) for i in range(140, 232))
-        self._test_high_characters(message)
+    _test_high_characters(request, tmp_path, message)
     # accept bytes instances.
-        self._test_high_characters(message.encode("latin1"))
+    _test_high_characters(request, tmp_path, message.encode("latin1"))

Tests/test_image_fromqimage.py

@@ -1,21 +1,26 @@
+import pytest
 from PIL import Image, ImageQt
 
 from .helper import PillowTestCase, assert_image_equal, hopper
-from .test_imageqt import PillowQtTestCase
+from .test_imageqt import skip_if_qt_is_not_installed
 
 
-class TestFromQImage(PillowQtTestCase, PillowTestCase):
-    def setUp(self):
-        super().setUp()
-        self.files_to_test = [
+pytestmark = skip_if_qt_is_not_installed()
+
+@pytest.fixture
+def test_images():
+    ims = [
         hopper(),
         Image.open("Tests/images/transparent.png"),
         Image.open("Tests/images/7x13.png"),
     ]
-        for im in self.files_to_test:
-            self.addCleanup(im.close)
+    try:
+        yield ims
+    finally:
+        for im in ims.values():
+            im.close()
 
-    def roundtrip(self, expected):
+def roundtrip(expected):
     # PIL -> Qt
     intermediate = expected.toqimage()
     # Qt -> PIL
@@ -26,22 +31,22 @@ class TestFromQImage(PillowQtTestCase, PillowTestCase):
     else:
         assert_image_equal(result, expected.convert("RGB"))
 
-    def test_sanity_1(self):
-        for im in self.files_to_test:
-            self.roundtrip(im.convert("1"))
+def test_sanity_1(test_images):
+    for im in test_images:
+        roundtrip(im.convert("1"))
 
-    def test_sanity_rgb(self):
-        for im in self.files_to_test:
-            self.roundtrip(im.convert("RGB"))
+def test_sanity_rgb(test_images):
+    for im in test_images:
+        roundtrip(im.convert("RGB"))
 
-    def test_sanity_rgba(self):
-        for im in self.files_to_test:
-            self.roundtrip(im.convert("RGBA"))
+def test_sanity_rgba(test_images):
+    for im in test_images:
+        roundtrip(im.convert("RGBA"))
 
-    def test_sanity_l(self):
-        for im in self.files_to_test:
-            self.roundtrip(im.convert("L"))
+def test_sanity_l(test_images):
+    for im in test_images:
+        roundtrip(im.convert("L"))
 
-    def test_sanity_p(self):
-        for im in self.files_to_test:
-            self.roundtrip(im.convert("P"))
+def test_sanity_p(test_images):
+    for im in test_images:
+        roundtrip(im.convert("P"))

Tests/test_imageops_usm.py

@@ -4,68 +4,82 @@ from PIL import Image, ImageFilter
 from .helper import PillowTestCase
 
 
-class TestImageOpsUsm(PillowTestCase):
-    def setUp(self):
-        super().setUp()
-        self.im = Image.open("Tests/images/hopper.ppm")
-        self.addCleanup(self.im.close)
-        self.snakes = Image.open("Tests/images/color_snakes.png")
-        self.addCleanup(self.snakes.close)
+@pytest.fixture
+def test_images():
+    ims = {
+        "im": Image.open("Tests/images/hopper.ppm"),
+        "snakes": Image.open("Tests/images/color_snakes.png"),
+    }
+    try:
+        yield ims
+    finally:
+        for im in ims.values():
+            im.close()
 
-    def test_filter_api(self):
+
+def test_filter_api(test_images):
+    im = test_images["im"]
 
     test_filter = ImageFilter.GaussianBlur(2.0)
-        i = self.im.filter(test_filter)
+    i = im.filter(test_filter)
     assert i.mode == "RGB"
     assert i.size == (128, 128)
 
     test_filter = ImageFilter.UnsharpMask(2.0, 125, 8)
-        i = self.im.filter(test_filter)
+    i = im.filter(test_filter)
     assert i.mode == "RGB"
     assert i.size == (128, 128)
 
-    def test_usm_formats(self):
+
+def test_usm_formats(test_images):
+    im = test_images["im"]
 
     usm = ImageFilter.UnsharpMask
     with pytest.raises(ValueError):
-            self.im.convert("1").filter(usm)
-        self.im.convert("L").filter(usm)
+        im.convert("1").filter(usm)
+    im.convert("L").filter(usm)
     with pytest.raises(ValueError):
-            self.im.convert("I").filter(usm)
+        im.convert("I").filter(usm)
     with pytest.raises(ValueError):
-            self.im.convert("F").filter(usm)
-        self.im.convert("RGB").filter(usm)
-        self.im.convert("RGBA").filter(usm)
-        self.im.convert("CMYK").filter(usm)
+        im.convert("F").filter(usm)
+    im.convert("RGB").filter(usm)
+    im.convert("RGBA").filter(usm)
+    im.convert("CMYK").filter(usm)
     with pytest.raises(ValueError):
-            self.im.convert("YCbCr").filter(usm)
+        im.convert("YCbCr").filter(usm)
 
-    def test_blur_formats(self):
+
+def test_blur_formats(test_images):
+    im = test_images["im"]
 
     blur = ImageFilter.GaussianBlur
     with pytest.raises(ValueError):
-            self.im.convert("1").filter(blur)
-        blur(self.im.convert("L"))
+        im.convert("1").filter(blur)
+    blur(im.convert("L"))
     with pytest.raises(ValueError):
-            self.im.convert("I").filter(blur)
+        im.convert("I").filter(blur)
     with pytest.raises(ValueError):
-            self.im.convert("F").filter(blur)
-        self.im.convert("RGB").filter(blur)
-        self.im.convert("RGBA").filter(blur)
-        self.im.convert("CMYK").filter(blur)
+        im.convert("F").filter(blur)
+    im.convert("RGB").filter(blur)
+    im.convert("RGBA").filter(blur)
+    im.convert("CMYK").filter(blur)
     with pytest.raises(ValueError):
-            self.im.convert("YCbCr").filter(blur)
+        im.convert("YCbCr").filter(blur)
 
-    def test_usm_accuracy(self):
 
-        src = self.snakes.convert("RGB")
+def test_usm_accuracy(test_images):
+    snakes = test_images["snakes"]
+
+    src = snakes.convert("RGB")
     i = src.filter(ImageFilter.UnsharpMask(5, 1024, 0))
     # Image should not be changed because it have only 0 and 255 levels.
     assert i.tobytes() == src.tobytes()
 
-    def test_blur_accuracy(self):
 
-        i = self.snakes.filter(ImageFilter.GaussianBlur(0.4))
+def test_blur_accuracy(test_images):
+    snakes = test_images["snakes"]
+
+    i = snakes.filter(ImageFilter.GaussianBlur(0.4))
     # These pixels surrounded with pixels with 255 intensity.
     # They must be very close to 255.
     for x, y, c in [

Tests/test_imageqt.py

@@ -1,3 +1,4 @@
+import pytest
 from PIL import ImageQt
 
 from .helper import PillowTestCase, hopper
@@ -5,14 +6,14 @@ from .helper import PillowTestCase, hopper
 if ImageQt.qt_is_installed:
     from PIL.ImageQt import qRgba
 
-    def skip_if_qt_is_not_installed(_):
+    def skip_if_qt_is_not_installed():
         pass
 
 
 else:
 
-    def skip_if_qt_is_not_installed(test_case):
-        test_case.skipTest("Qt bindings are not installed")
+    def skip_if_qt_is_not_installed():
+        return pytest.mark.skip(reason="Qt bindings are not installed")
 
 
 class PillowQtTestCase: