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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
673 lines
24 KiB
Python
673 lines
24 KiB
Python
import os
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import sys
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from io import BytesIO
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from PIL import Image, ImageFile, JpegImagePlugin
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from .helper import PillowTestCase, cjpeg_available, djpeg_available, hopper, unittest
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codecs = dir(Image.core)
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TEST_FILE = "Tests/images/hopper.jpg"
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class TestFileJpeg(PillowTestCase):
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def setUp(self):
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if "jpeg_encoder" not in codecs or "jpeg_decoder" not in codecs:
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self.skipTest("jpeg support not available")
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def roundtrip(self, im, **options):
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out = BytesIO()
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im.save(out, "JPEG", **options)
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test_bytes = out.tell()
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out.seek(0)
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im = Image.open(out)
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im.bytes = test_bytes # for testing only
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return im
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def gen_random_image(self, size, mode="RGB"):
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""" Generates a very hard to compress file
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:param size: tuple
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:param mode: optional image mode
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"""
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return Image.frombytes(mode, size, os.urandom(size[0] * size[1] * len(mode)))
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def test_sanity(self):
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# internal version number
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self.assertRegex(Image.core.jpeglib_version, r"\d+\.\d+$")
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im = Image.open(TEST_FILE)
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im.load()
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self.assertEqual(im.mode, "RGB")
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self.assertEqual(im.size, (128, 128))
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self.assertEqual(im.format, "JPEG")
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self.assertEqual(im.get_format_mimetype(), "image/jpeg")
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def test_app(self):
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# Test APP/COM reader (@PIL135)
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im = Image.open(TEST_FILE)
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self.assertEqual(
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im.applist[0], ("APP0", b"JFIF\x00\x01\x01\x01\x00`\x00`\x00\x00")
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)
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self.assertEqual(
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im.applist[1], ("COM", b"File written by Adobe Photoshop\xa8 4.0\x00")
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)
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self.assertEqual(len(im.applist), 2)
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def test_cmyk(self):
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# Test CMYK handling. Thanks to Tim and Charlie for test data,
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# Michael for getting me to look one more time.
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f = "Tests/images/pil_sample_cmyk.jpg"
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im = Image.open(f)
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# the source image has red pixels in the upper left corner.
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c, m, y, k = [x / 255.0 for x in im.getpixel((0, 0))]
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self.assertEqual(c, 0.0)
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self.assertGreater(m, 0.8)
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self.assertGreater(y, 0.8)
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self.assertEqual(k, 0.0)
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# the opposite corner is black
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c, m, y, k = [x / 255.0 for x in im.getpixel((im.size[0] - 1, im.size[1] - 1))]
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self.assertGreater(k, 0.9)
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# roundtrip, and check again
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im = self.roundtrip(im)
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c, m, y, k = [x / 255.0 for x in im.getpixel((0, 0))]
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self.assertEqual(c, 0.0)
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self.assertGreater(m, 0.8)
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self.assertGreater(y, 0.8)
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self.assertEqual(k, 0.0)
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c, m, y, k = [x / 255.0 for x in im.getpixel((im.size[0] - 1, im.size[1] - 1))]
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self.assertGreater(k, 0.9)
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def test_dpi(self):
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def test(xdpi, ydpi=None):
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im = Image.open(TEST_FILE)
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im = self.roundtrip(im, dpi=(xdpi, ydpi or xdpi))
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return im.info.get("dpi")
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self.assertEqual(test(72), (72, 72))
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self.assertEqual(test(300), (300, 300))
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self.assertEqual(test(100, 200), (100, 200))
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self.assertIsNone(test(0)) # square pixels
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def test_icc(self):
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# Test ICC support
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im1 = Image.open("Tests/images/rgb.jpg")
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icc_profile = im1.info["icc_profile"]
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self.assertEqual(len(icc_profile), 3144)
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# Roundtrip via physical file.
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f = self.tempfile("temp.jpg")
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im1.save(f, icc_profile=icc_profile)
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im2 = Image.open(f)
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self.assertEqual(im2.info.get("icc_profile"), icc_profile)
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# Roundtrip via memory buffer.
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im1 = self.roundtrip(hopper())
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im2 = self.roundtrip(hopper(), icc_profile=icc_profile)
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self.assert_image_equal(im1, im2)
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self.assertFalse(im1.info.get("icc_profile"))
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self.assertTrue(im2.info.get("icc_profile"))
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def test_icc_big(self):
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# Make sure that the "extra" support handles large blocks
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def test(n):
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# The ICC APP marker can store 65519 bytes per marker, so
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# using a 4-byte test code should allow us to detect out of
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# order issues.
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icc_profile = (b"Test" * int(n / 4 + 1))[:n]
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self.assertEqual(len(icc_profile), n) # sanity
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im1 = self.roundtrip(hopper(), icc_profile=icc_profile)
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self.assertEqual(im1.info.get("icc_profile"), icc_profile or None)
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test(0)
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test(1)
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test(3)
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test(4)
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test(5)
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test(65533 - 14) # full JPEG marker block
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test(65533 - 14 + 1) # full block plus one byte
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test(ImageFile.MAXBLOCK) # full buffer block
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test(ImageFile.MAXBLOCK + 1) # full buffer block plus one byte
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test(ImageFile.MAXBLOCK * 4 + 3) # large block
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def test_large_icc_meta(self):
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# https://github.com/python-pillow/Pillow/issues/148
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# Sometimes the meta data on the icc_profile block is bigger than
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# Image.MAXBLOCK or the image size.
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im = Image.open("Tests/images/icc_profile_big.jpg")
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f = self.tempfile("temp.jpg")
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icc_profile = im.info["icc_profile"]
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# Should not raise IOError for image with icc larger than image size.
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im.save(
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f,
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format="JPEG",
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progressive=True,
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quality=95,
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icc_profile=icc_profile,
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optimize=True,
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)
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def test_optimize(self):
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im1 = self.roundtrip(hopper())
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im2 = self.roundtrip(hopper(), optimize=0)
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im3 = self.roundtrip(hopper(), optimize=1)
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self.assert_image_equal(im1, im2)
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self.assert_image_equal(im1, im3)
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self.assertGreaterEqual(im1.bytes, im2.bytes)
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self.assertGreaterEqual(im1.bytes, im3.bytes)
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def test_optimize_large_buffer(self):
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# https://github.com/python-pillow/Pillow/issues/148
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f = self.tempfile("temp.jpg")
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# this requires ~ 1.5x Image.MAXBLOCK
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im = Image.new("RGB", (4096, 4096), 0xFF3333)
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im.save(f, format="JPEG", optimize=True)
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def test_progressive(self):
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im1 = self.roundtrip(hopper())
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im2 = self.roundtrip(hopper(), progressive=False)
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im3 = self.roundtrip(hopper(), progressive=True)
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self.assertFalse(im1.info.get("progressive"))
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self.assertFalse(im2.info.get("progressive"))
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self.assertTrue(im3.info.get("progressive"))
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self.assert_image_equal(im1, im3)
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self.assertGreaterEqual(im1.bytes, im3.bytes)
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def test_progressive_large_buffer(self):
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f = self.tempfile("temp.jpg")
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# this requires ~ 1.5x Image.MAXBLOCK
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im = Image.new("RGB", (4096, 4096), 0xFF3333)
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im.save(f, format="JPEG", progressive=True)
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def test_progressive_large_buffer_highest_quality(self):
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f = self.tempfile("temp.jpg")
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im = self.gen_random_image((255, 255))
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# this requires more bytes than pixels in the image
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im.save(f, format="JPEG", progressive=True, quality=100)
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def test_progressive_cmyk_buffer(self):
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# Issue 2272, quality 90 cmyk image is tripping the large buffer bug.
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f = BytesIO()
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im = self.gen_random_image((256, 256), "CMYK")
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im.save(f, format="JPEG", progressive=True, quality=94)
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def test_large_exif(self):
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# https://github.com/python-pillow/Pillow/issues/148
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f = self.tempfile("temp.jpg")
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im = hopper()
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im.save(f, "JPEG", quality=90, exif=b"1" * 65532)
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def test_exif_typeerror(self):
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im = Image.open("Tests/images/exif_typeerror.jpg")
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# Should not raise a TypeError
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im._getexif()
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def test_exif_gps(self):
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# Arrange
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im = Image.open("Tests/images/exif_gps.jpg")
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gps_index = 34853
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expected_exif_gps = {
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0: b"\x00\x00\x00\x01",
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2: (4294967295, 1),
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5: b"\x01",
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30: 65535,
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29: "1999:99:99 99:99:99",
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}
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# Act
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exif = im._getexif()
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# Assert
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self.assertEqual(exif[gps_index], expected_exif_gps)
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def test_exif_rollback(self):
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# rolling back exif support in 3.1 to pre-3.0 formatting.
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# expected from 2.9, with b/u qualifiers switched for 3.2 compatibility
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# this test passes on 2.9 and 3.1, but not 3.0
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expected_exif = {
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34867: 4294967295,
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258: (24, 24, 24),
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36867: "2099:09:29 10:10:10",
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34853: {
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0: b"\x00\x00\x00\x01",
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2: (4294967295, 1),
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5: b"\x01",
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30: 65535,
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29: "1999:99:99 99:99:99",
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},
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296: 65535,
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34665: 185,
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41994: 65535,
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514: 4294967295,
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271: "Make",
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272: "XXX-XXX",
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305: "PIL",
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42034: ((1, 1), (1, 1), (1, 1), (1, 1)),
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42035: "LensMake",
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34856: b"\xaa\xaa\xaa\xaa\xaa\xaa",
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282: (4294967295, 1),
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33434: (4294967295, 1),
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}
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im = Image.open("Tests/images/exif_gps.jpg")
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exif = im._getexif()
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for tag, value in expected_exif.items():
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self.assertEqual(value, exif[tag])
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def test_exif_gps_typeerror(self):
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im = Image.open("Tests/images/exif_gps_typeerror.jpg")
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# Should not raise a TypeError
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im._getexif()
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def test_progressive_compat(self):
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im1 = self.roundtrip(hopper())
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self.assertFalse(im1.info.get("progressive"))
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self.assertFalse(im1.info.get("progression"))
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im2 = self.roundtrip(hopper(), progressive=0)
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im3 = self.roundtrip(hopper(), progression=0) # compatibility
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self.assertFalse(im2.info.get("progressive"))
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self.assertFalse(im2.info.get("progression"))
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self.assertFalse(im3.info.get("progressive"))
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self.assertFalse(im3.info.get("progression"))
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im2 = self.roundtrip(hopper(), progressive=1)
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im3 = self.roundtrip(hopper(), progression=1) # compatibility
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self.assert_image_equal(im1, im2)
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self.assert_image_equal(im1, im3)
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self.assertTrue(im2.info.get("progressive"))
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self.assertTrue(im2.info.get("progression"))
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self.assertTrue(im3.info.get("progressive"))
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self.assertTrue(im3.info.get("progression"))
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def test_quality(self):
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im1 = self.roundtrip(hopper())
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im2 = self.roundtrip(hopper(), quality=50)
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self.assert_image(im1, im2.mode, im2.size)
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self.assertGreaterEqual(im1.bytes, im2.bytes)
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def test_smooth(self):
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im1 = self.roundtrip(hopper())
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im2 = self.roundtrip(hopper(), smooth=100)
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self.assert_image(im1, im2.mode, im2.size)
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def test_subsampling(self):
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def getsampling(im):
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layer = im.layer
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return layer[0][1:3] + layer[1][1:3] + layer[2][1:3]
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# experimental API
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im = self.roundtrip(hopper(), subsampling=-1) # default
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self.assertEqual(getsampling(im), (2, 2, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling=0) # 4:4:4
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self.assertEqual(getsampling(im), (1, 1, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling=1) # 4:2:2
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self.assertEqual(getsampling(im), (2, 1, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling=2) # 4:2:0
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self.assertEqual(getsampling(im), (2, 2, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling=3) # default (undefined)
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self.assertEqual(getsampling(im), (2, 2, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling="4:4:4")
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self.assertEqual(getsampling(im), (1, 1, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling="4:2:2")
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self.assertEqual(getsampling(im), (2, 1, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling="4:2:0")
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self.assertEqual(getsampling(im), (2, 2, 1, 1, 1, 1))
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im = self.roundtrip(hopper(), subsampling="4:1:1")
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self.assertEqual(getsampling(im), (2, 2, 1, 1, 1, 1))
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self.assertRaises(TypeError, self.roundtrip, hopper(), subsampling="1:1:1")
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def test_exif(self):
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im = Image.open("Tests/images/pil_sample_rgb.jpg")
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info = im._getexif()
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self.assertEqual(info[305], "Adobe Photoshop CS Macintosh")
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def test_mp(self):
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im = Image.open("Tests/images/pil_sample_rgb.jpg")
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self.assertIsNone(im._getmp())
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def test_quality_keep(self):
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# RGB
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im = Image.open("Tests/images/hopper.jpg")
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f = self.tempfile("temp.jpg")
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im.save(f, quality="keep")
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# Grayscale
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im = Image.open("Tests/images/hopper_gray.jpg")
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f = self.tempfile("temp.jpg")
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im.save(f, quality="keep")
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# CMYK
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im = Image.open("Tests/images/pil_sample_cmyk.jpg")
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f = self.tempfile("temp.jpg")
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im.save(f, quality="keep")
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def test_junk_jpeg_header(self):
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# https://github.com/python-pillow/Pillow/issues/630
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filename = "Tests/images/junk_jpeg_header.jpg"
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Image.open(filename)
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def test_ff00_jpeg_header(self):
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filename = "Tests/images/jpeg_ff00_header.jpg"
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Image.open(filename)
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def test_truncated_jpeg_should_read_all_the_data(self):
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filename = "Tests/images/truncated_jpeg.jpg"
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ImageFile.LOAD_TRUNCATED_IMAGES = True
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im = Image.open(filename)
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im.load()
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ImageFile.LOAD_TRUNCATED_IMAGES = False
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self.assertIsNotNone(im.getbbox())
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def test_truncated_jpeg_throws_IOError(self):
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filename = "Tests/images/truncated_jpeg.jpg"
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im = Image.open(filename)
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with self.assertRaises(IOError):
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im.load()
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def _n_qtables_helper(self, n, test_file):
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im = Image.open(test_file)
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f = self.tempfile("temp.jpg")
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im.save(f, qtables=[[n] * 64] * n)
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im = Image.open(f)
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self.assertEqual(len(im.quantization), n)
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reloaded = self.roundtrip(im, qtables="keep")
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self.assertEqual(im.quantization, reloaded.quantization)
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def test_qtables(self):
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im = Image.open("Tests/images/hopper.jpg")
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qtables = im.quantization
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reloaded = self.roundtrip(im, qtables=qtables, subsampling=0)
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self.assertEqual(im.quantization, reloaded.quantization)
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self.assert_image_similar(im, self.roundtrip(im, qtables="web_low"), 30)
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self.assert_image_similar(im, self.roundtrip(im, qtables="web_high"), 30)
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self.assert_image_similar(im, self.roundtrip(im, qtables="keep"), 30)
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# valid bounds for baseline qtable
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bounds_qtable = [int(s) for s in ("255 1 " * 32).split(None)]
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self.roundtrip(im, qtables=[bounds_qtable])
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# values from wizard.txt in jpeg9-a src package.
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standard_l_qtable = [
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int(s)
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for s in """
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16 11 10 16 24 40 51 61
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12 12 14 19 26 58 60 55
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14 13 16 24 40 57 69 56
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14 17 22 29 51 87 80 62
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18 22 37 56 68 109 103 77
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24 35 55 64 81 104 113 92
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49 64 78 87 103 121 120 101
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72 92 95 98 112 100 103 99
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""".split(
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None
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)
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]
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standard_chrominance_qtable = [
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int(s)
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for s in """
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17 18 24 47 99 99 99 99
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18 21 26 66 99 99 99 99
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24 26 56 99 99 99 99 99
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47 66 99 99 99 99 99 99
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99 99 99 99 99 99 99 99
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99 99 99 99 99 99 99 99
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99 99 99 99 99 99 99 99
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99 99 99 99 99 99 99 99
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""".split(
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None
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)
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]
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# list of qtable lists
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self.assert_image_similar(
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im,
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self.roundtrip(
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im, qtables=[standard_l_qtable, standard_chrominance_qtable]
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),
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30,
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)
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# tuple of qtable lists
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self.assert_image_similar(
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im,
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self.roundtrip(
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im, qtables=(standard_l_qtable, standard_chrominance_qtable)
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),
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30,
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)
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# dict of qtable lists
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self.assert_image_similar(
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im,
|
|
self.roundtrip(
|
|
im, qtables={0: standard_l_qtable, 1: standard_chrominance_qtable}
|
|
),
|
|
30,
|
|
)
|
|
|
|
self._n_qtables_helper(1, "Tests/images/hopper_gray.jpg")
|
|
self._n_qtables_helper(1, "Tests/images/pil_sample_rgb.jpg")
|
|
self._n_qtables_helper(2, "Tests/images/pil_sample_rgb.jpg")
|
|
self._n_qtables_helper(3, "Tests/images/pil_sample_rgb.jpg")
|
|
self._n_qtables_helper(1, "Tests/images/pil_sample_cmyk.jpg")
|
|
self._n_qtables_helper(2, "Tests/images/pil_sample_cmyk.jpg")
|
|
self._n_qtables_helper(3, "Tests/images/pil_sample_cmyk.jpg")
|
|
self._n_qtables_helper(4, "Tests/images/pil_sample_cmyk.jpg")
|
|
|
|
# not a sequence
|
|
self.assertRaises(ValueError, self.roundtrip, im, qtables="a")
|
|
# sequence wrong length
|
|
self.assertRaises(ValueError, self.roundtrip, im, qtables=[])
|
|
# sequence wrong length
|
|
self.assertRaises(ValueError, self.roundtrip, im, qtables=[1, 2, 3, 4, 5])
|
|
|
|
# qtable entry not a sequence
|
|
self.assertRaises(ValueError, self.roundtrip, im, qtables=[1])
|
|
# qtable entry has wrong number of items
|
|
self.assertRaises(ValueError, self.roundtrip, im, qtables=[[1, 2, 3, 4]])
|
|
|
|
@unittest.skipUnless(djpeg_available(), "djpeg not available")
|
|
def test_load_djpeg(self):
|
|
img = Image.open(TEST_FILE)
|
|
img.load_djpeg()
|
|
self.assert_image_similar(img, Image.open(TEST_FILE), 0)
|
|
|
|
@unittest.skipUnless(cjpeg_available(), "cjpeg not available")
|
|
def test_save_cjpeg(self):
|
|
img = Image.open(TEST_FILE)
|
|
|
|
tempfile = self.tempfile("temp.jpg")
|
|
JpegImagePlugin._save_cjpeg(img, 0, tempfile)
|
|
# Default save quality is 75%, so a tiny bit of difference is alright
|
|
self.assert_image_similar(img, Image.open(tempfile), 17)
|
|
|
|
def test_no_duplicate_0x1001_tag(self):
|
|
# Arrange
|
|
from PIL import ExifTags
|
|
|
|
tag_ids = {v: k for k, v in ExifTags.TAGS.items()}
|
|
|
|
# Assert
|
|
self.assertEqual(tag_ids["RelatedImageWidth"], 0x1001)
|
|
self.assertEqual(tag_ids["RelatedImageLength"], 0x1002)
|
|
|
|
def test_MAXBLOCK_scaling(self):
|
|
im = self.gen_random_image((512, 512))
|
|
f = self.tempfile("temp.jpeg")
|
|
im.save(f, quality=100, optimize=True)
|
|
|
|
reloaded = Image.open(f)
|
|
|
|
# none of these should crash
|
|
reloaded.save(f, quality="keep")
|
|
reloaded.save(f, quality="keep", progressive=True)
|
|
reloaded.save(f, quality="keep", optimize=True)
|
|
|
|
def test_bad_mpo_header(self):
|
|
""" Treat unknown MPO as JPEG """
|
|
# Arrange
|
|
|
|
# Act
|
|
# Shouldn't raise error
|
|
fn = "Tests/images/sugarshack_bad_mpo_header.jpg"
|
|
im = self.assert_warning(UserWarning, Image.open, fn)
|
|
|
|
# Assert
|
|
self.assertEqual(im.format, "JPEG")
|
|
|
|
def test_save_correct_modes(self):
|
|
out = BytesIO()
|
|
for mode in ["1", "L", "RGB", "RGBX", "CMYK", "YCbCr"]:
|
|
img = Image.new(mode, (20, 20))
|
|
img.save(out, "JPEG")
|
|
|
|
def test_save_wrong_modes(self):
|
|
# ref https://github.com/python-pillow/Pillow/issues/2005
|
|
out = BytesIO()
|
|
for mode in ["LA", "La", "RGBA", "RGBa", "P"]:
|
|
img = Image.new(mode, (20, 20))
|
|
self.assertRaises(IOError, img.save, out, "JPEG")
|
|
|
|
def test_save_tiff_with_dpi(self):
|
|
# Arrange
|
|
outfile = self.tempfile("temp.tif")
|
|
im = Image.open("Tests/images/hopper.tif")
|
|
|
|
# Act
|
|
im.save(outfile, "JPEG", dpi=im.info["dpi"])
|
|
|
|
# Assert
|
|
reloaded = Image.open(outfile)
|
|
reloaded.load()
|
|
self.assertEqual(im.info["dpi"], reloaded.info["dpi"])
|
|
|
|
def test_load_dpi_rounding(self):
|
|
# Round up
|
|
im = Image.open("Tests/images/iptc_roundUp.jpg")
|
|
self.assertEqual(im.info["dpi"], (44, 44))
|
|
|
|
# Round down
|
|
im = Image.open("Tests/images/iptc_roundDown.jpg")
|
|
self.assertEqual(im.info["dpi"], (2, 2))
|
|
|
|
def test_save_dpi_rounding(self):
|
|
outfile = self.tempfile("temp.jpg")
|
|
im = Image.open("Tests/images/hopper.jpg")
|
|
|
|
im.save(outfile, dpi=(72.2, 72.2))
|
|
reloaded = Image.open(outfile)
|
|
self.assertEqual(reloaded.info["dpi"], (72, 72))
|
|
|
|
im.save(outfile, dpi=(72.8, 72.8))
|
|
reloaded = Image.open(outfile)
|
|
self.assertEqual(reloaded.info["dpi"], (73, 73))
|
|
|
|
def test_dpi_tuple_from_exif(self):
|
|
# Arrange
|
|
# This Photoshop CC 2017 image has DPI in EXIF not metadata
|
|
# EXIF XResolution is (2000000, 10000)
|
|
im = Image.open("Tests/images/photoshop-200dpi.jpg")
|
|
|
|
# Act / Assert
|
|
self.assertEqual(im.info.get("dpi"), (200, 200))
|
|
|
|
def test_dpi_int_from_exif(self):
|
|
# Arrange
|
|
# This image has DPI in EXIF not metadata
|
|
# EXIF XResolution is 72
|
|
im = Image.open("Tests/images/exif-72dpi-int.jpg")
|
|
|
|
# Act / Assert
|
|
self.assertEqual(im.info.get("dpi"), (72, 72))
|
|
|
|
def test_dpi_from_dpcm_exif(self):
|
|
# Arrange
|
|
# This is photoshop-200dpi.jpg with EXIF resolution unit set to cm:
|
|
# exiftool -exif:ResolutionUnit=cm photoshop-200dpi.jpg
|
|
im = Image.open("Tests/images/exif-200dpcm.jpg")
|
|
|
|
# Act / Assert
|
|
self.assertEqual(im.info.get("dpi"), (508, 508))
|
|
|
|
def test_dpi_exif_zero_division(self):
|
|
# Arrange
|
|
# This is photoshop-200dpi.jpg with EXIF resolution set to 0/0:
|
|
# exiftool -XResolution=0/0 -YResolution=0/0 photoshop-200dpi.jpg
|
|
im = Image.open("Tests/images/exif-dpi-zerodivision.jpg")
|
|
|
|
# Act / Assert
|
|
# This should return the default, and not raise a ZeroDivisionError
|
|
self.assertEqual(im.info.get("dpi"), (72, 72))
|
|
|
|
def test_no_dpi_in_exif(self):
|
|
# Arrange
|
|
# This is photoshop-200dpi.jpg with resolution removed from EXIF:
|
|
# exiftool "-*resolution*"= photoshop-200dpi.jpg
|
|
im = Image.open("Tests/images/no-dpi-in-exif.jpg")
|
|
|
|
# Act / Assert
|
|
# "When the image resolution is unknown, 72 [dpi] is designated."
|
|
# http://www.exiv2.org/tags.html
|
|
self.assertEqual(im.info.get("dpi"), (72, 72))
|
|
|
|
def test_invalid_exif(self):
|
|
# This is no-dpi-in-exif with the tiff header of the exif block
|
|
# hexedited from MM * to FF FF FF FF
|
|
im = Image.open("Tests/images/invalid-exif.jpg")
|
|
|
|
# This should return the default, and not a SyntaxError or
|
|
# OSError for unidentified image.
|
|
self.assertEqual(im.info.get("dpi"), (72, 72))
|
|
|
|
def test_ifd_offset_exif(self):
|
|
# Arrange
|
|
# This image has been manually hexedited to have an IFD offset of 10,
|
|
# in contrast to normal 8
|
|
im = Image.open("Tests/images/exif-ifd-offset.jpg")
|
|
|
|
# Act / Assert
|
|
self.assertEqual(im._getexif()[306], "2017:03:13 23:03:09")
|
|
|
|
def test_photoshop(self):
|
|
im = Image.open("Tests/images/photoshop-200dpi.jpg")
|
|
self.assertEqual(
|
|
im.info["photoshop"][0x03ED],
|
|
{
|
|
"XResolution": 200.0,
|
|
"DisplayedUnitsX": 1,
|
|
"YResolution": 200.0,
|
|
"DisplayedUnitsY": 1,
|
|
},
|
|
)
|
|
|
|
# This image does not contain a Photoshop header string
|
|
im = Image.open("Tests/images/app13.jpg")
|
|
self.assertNotIn("photoshop", im.info)
|
|
|
|
|
|
@unittest.skipUnless(sys.platform.startswith("win32"), "Windows only")
|
|
class TestFileCloseW32(PillowTestCase):
|
|
def setUp(self):
|
|
if "jpeg_encoder" not in codecs or "jpeg_decoder" not in codecs:
|
|
self.skipTest("jpeg support not available")
|
|
|
|
def test_fd_leak(self):
|
|
tmpfile = self.tempfile("temp.jpg")
|
|
|
|
with Image.open("Tests/images/hopper.jpg") as im:
|
|
im.save(tmpfile)
|
|
|
|
im = Image.open(tmpfile)
|
|
fp = im.fp
|
|
self.assertFalse(fp.closed)
|
|
self.assertRaises(WindowsError, os.remove, tmpfile)
|
|
im.load()
|
|
self.assertTrue(fp.closed)
|
|
# this should not fail, as load should have closed the file.
|
|
os.remove(tmpfile)
|