Pillow/Tests/test_file_webp_metadata.py
Jon Dufresne d50445ff30 Introduce isort to automate import ordering and formatting
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.
2019-07-06 16:11:35 -07:00

140 lines
3.9 KiB
Python

from PIL import Image
from .helper import PillowTestCase
try:
from PIL import _webp
HAVE_WEBP = True
except ImportError:
HAVE_WEBP = False
class TestFileWebpMetadata(PillowTestCase):
def setUp(self):
if not HAVE_WEBP:
self.skipTest("WebP support not installed")
return
if not _webp.HAVE_WEBPMUX:
self.skipTest("WebPMux support not installed")
def test_read_exif_metadata(self):
file_path = "Tests/images/flower.webp"
image = Image.open(file_path)
self.assertEqual(image.format, "WEBP")
exif_data = image.info.get("exif", None)
self.assertTrue(exif_data)
exif = image._getexif()
# camera make
self.assertEqual(exif[271], "Canon")
jpeg_image = Image.open("Tests/images/flower.jpg")
expected_exif = jpeg_image.info["exif"]
self.assertEqual(exif_data, expected_exif)
def test_write_exif_metadata(self):
from io import BytesIO
file_path = "Tests/images/flower.jpg"
image = Image.open(file_path)
expected_exif = image.info["exif"]
test_buffer = BytesIO()
image.save(test_buffer, "webp", exif=expected_exif)
test_buffer.seek(0)
webp_image = Image.open(test_buffer)
webp_exif = webp_image.info.get("exif", None)
self.assertTrue(webp_exif)
if webp_exif:
self.assertEqual(webp_exif, expected_exif, "WebP EXIF didn't match")
def test_read_icc_profile(self):
file_path = "Tests/images/flower2.webp"
image = Image.open(file_path)
self.assertEqual(image.format, "WEBP")
self.assertTrue(image.info.get("icc_profile", None))
icc = image.info["icc_profile"]
jpeg_image = Image.open("Tests/images/flower2.jpg")
expected_icc = jpeg_image.info["icc_profile"]
self.assertEqual(icc, expected_icc)
def test_write_icc_metadata(self):
from io import BytesIO
file_path = "Tests/images/flower2.jpg"
image = Image.open(file_path)
expected_icc_profile = image.info["icc_profile"]
test_buffer = BytesIO()
image.save(test_buffer, "webp", icc_profile=expected_icc_profile)
test_buffer.seek(0)
webp_image = Image.open(test_buffer)
webp_icc_profile = webp_image.info.get("icc_profile", None)
self.assertTrue(webp_icc_profile)
if webp_icc_profile:
self.assertEqual(
webp_icc_profile, expected_icc_profile, "Webp ICC didn't match"
)
def test_read_no_exif(self):
from io import BytesIO
file_path = "Tests/images/flower.jpg"
image = Image.open(file_path)
self.assertIn("exif", image.info)
test_buffer = BytesIO()
image.save(test_buffer, "webp")
test_buffer.seek(0)
webp_image = Image.open(test_buffer)
self.assertFalse(webp_image._getexif())
def test_write_animated_metadata(self):
if not _webp.HAVE_WEBPANIM:
self.skipTest("WebP animation support not available")
iccp_data = "<iccp_data>".encode("utf-8")
exif_data = "<exif_data>".encode("utf-8")
xmp_data = "<xmp_data>".encode("utf-8")
temp_file = self.tempfile("temp.webp")
frame1 = Image.open("Tests/images/anim_frame1.webp")
frame2 = Image.open("Tests/images/anim_frame2.webp")
frame1.save(
temp_file,
save_all=True,
append_images=[frame2, frame1, frame2],
icc_profile=iccp_data,
exif=exif_data,
xmp=xmp_data,
)
image = Image.open(temp_file)
self.assertIn("icc_profile", image.info)
self.assertIn("exif", image.info)
self.assertIn("xmp", image.info)
self.assertEqual(iccp_data, image.info.get("icc_profile", None))
self.assertEqual(exif_data, image.info.get("exif", None))
self.assertEqual(xmp_data, image.info.get("xmp", None))