Use pytest.mark.parametrize r=@saimn

tests/test_image.py

@@ -45,26 +45,16 @@ def test_generate_image(tmpdir):
         assert im.size == size
 
 
-def test_generate_gif_image_passthrough(tmpdir):
-    "Test the generate_image function with gif images."
-    dstfile = str(tmpdir.join(TEST_GIF_IMAGE))
-    settings = create_settings()
-    generate_image(SRC_GIF_FILE, dstfile, settings)
-    # Check the file was copied, not (sym)linked
-    st_src = os.stat(SRC_GIF_FILE)
-    st_dst = os.stat(dstfile)
-    assert st_src.st_size == st_dst.st_size
-    assert not os.path.samestat(st_src, st_dst)
-
-
-def test_generate_image_passthrough(tmpdir):
+@pytest.mark.parametrize(("image", "path"), [(TEST_IMAGE, SRCFILE),
+                                             (TEST_GIF_IMAGE, SRC_GIF_FILE)])
+def test_generate_image_passthrough(tmpdir, image, path):
     "Test the generate_image function with use_orig=True."
 
-    dstfile = str(tmpdir.join(TEST_IMAGE))
+    dstfile = str(tmpdir.join(image))
     settings = create_settings(use_orig=True)
-    generate_image(SRCFILE, dstfile, settings)
+    generate_image(path, dstfile, settings)
     # Check the file was copied, not (sym)linked
-    st_src = os.stat(SRCFILE)
+    st_src = os.stat(path)
     st_dst = os.stat(dstfile)
     assert st_src.st_size == st_dst.st_size
     assert not os.path.samestat(st_src, st_dst)
@@ -93,36 +83,23 @@ def test_generate_image_processor(tmpdir):
         generate_image(SRCFILE, dstfile, settings)
 
 
-def test_generate_thumbnail(tmpdir):
-    "Test the generate_thumbnail function."
-
-    dstfile = str(tmpdir.join(TEST_IMAGE))
-    delay = 0
-    for size in [(200, 150), (150, 200)]:
-        generate_thumbnail(SRCFILE, dstfile, size, delay)
-        im = Image.open(dstfile)
-        assert im.size == size
-
-    for size, thumb_size in [((200, 150), (185, 150)),
-                             ((150, 200), (150, 122))]:
-        generate_thumbnail(SRCFILE, dstfile, size, delay, fit=False)
-        im = Image.open(dstfile)
-        assert im.size == thumb_size
-
-
-def test_generate_gif_thumbnail(tmpdir):
+@pytest.mark.parametrize(
+    ("image", "path", "wide_size", "high_size"),
+    [(TEST_IMAGE, SRCFILE, (185, 150), (150, 122)),
+     (TEST_GIF_IMAGE, SRC_GIF_FILE, (127, 150), (150, 177))])
+def test_generate_thumbnail(tmpdir, image, path, wide_size, high_size):
     "Test the generate_thumbnail function."
 
-    dstfile = str(tmpdir.join(TEST_GIF_IMAGE))
+    dstfile = str(tmpdir.join(image))
     delay = 0
     for size in [(200, 150), (150, 200)]:
-        generate_thumbnail(SRC_GIF_FILE, dstfile, size, delay)
+        generate_thumbnail(path, dstfile, size, delay)
         im = Image.open(dstfile)
         assert im.size == size
 
-    for size, thumb_size in [((200, 150), (127, 150)),
-                             ((150, 200), (150, 177))]:
-        generate_thumbnail(SRC_GIF_FILE, dstfile, size, delay, fit=False)
+    for size, thumb_size in [((200, 150), wide_size),
+                             ((150, 200), high_size)]:
+        generate_thumbnail(path, dstfile, size, delay, fit=False)
         im = Image.open(dstfile)
         assert im.size == thumb_size