Pillow/Tests/test_file_psd.py
2019-11-06 20:12:19 +11:00

116 lines
3.4 KiB
Python

import unittest
from PIL import Image, PsdImagePlugin
from .helper import PillowTestCase, hopper, is_pypy
test_file = "Tests/images/hopper.psd"
class TestImagePsd(PillowTestCase):
def test_sanity(self):
with Image.open(test_file) as im:
im.load()
self.assertEqual(im.mode, "RGB")
self.assertEqual(im.size, (128, 128))
self.assertEqual(im.format, "PSD")
im2 = hopper()
self.assert_image_similar(im, im2, 4.8)
@unittest.skipIf(is_pypy(), "Requires CPython")
def test_unclosed_file(self):
def open():
im = Image.open(test_file)
im.load()
self.assert_warning(ResourceWarning, open)
def test_closed_file(self):
def open():
im = Image.open(test_file)
im.load()
im.close()
self.assert_warning(None, open)
def test_context_manager(self):
def open():
with Image.open(test_file) as im:
im.load()
self.assert_warning(None, open)
def test_invalid_file(self):
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError, PsdImagePlugin.PsdImageFile, invalid_file)
def test_n_frames(self):
with Image.open("Tests/images/hopper_merged.psd") as im:
self.assertEqual(im.n_frames, 1)
self.assertFalse(im.is_animated)
with Image.open(test_file) as im:
self.assertEqual(im.n_frames, 2)
self.assertTrue(im.is_animated)
def test_eoferror(self):
with Image.open(test_file) as im:
# PSD seek index starts at 1 rather than 0
n_frames = im.n_frames + 1
# Test seeking past the last frame
self.assertRaises(EOFError, im.seek, n_frames)
self.assertLess(im.tell(), n_frames)
# Test that seeking to the last frame does not raise an error
im.seek(n_frames - 1)
def test_seek_tell(self):
with Image.open(test_file) as im:
layer_number = im.tell()
self.assertEqual(layer_number, 1)
self.assertRaises(EOFError, im.seek, 0)
im.seek(1)
layer_number = im.tell()
self.assertEqual(layer_number, 1)
im.seek(2)
layer_number = im.tell()
self.assertEqual(layer_number, 2)
def test_seek_eoferror(self):
with Image.open(test_file) as im:
self.assertRaises(EOFError, im.seek, -1)
def test_open_after_exclusive_load(self):
with Image.open(test_file) as im:
im.load()
im.seek(im.tell() + 1)
im.load()
def test_icc_profile(self):
with Image.open(test_file) as im:
self.assertIn("icc_profile", im.info)
icc_profile = im.info["icc_profile"]
self.assertEqual(len(icc_profile), 3144)
def test_no_icc_profile(self):
with Image.open("Tests/images/hopper_merged.psd") as im:
self.assertNotIn("icc_profile", im.info)
def test_combined_larger_than_size(self):
# The 'combined' sizes of the individual parts is larger than the
# declared 'size' of the extra data field, resulting in a backwards seek.
# If we instead take the 'size' of the extra data field as the source of truth,
# then the seek can't be negative
with self.assertRaises(IOError):
Image.open("Tests/images/combined_larger_than_size.psd")