mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 17:36:18 +03:00
117 lines
3.1 KiB
Python
117 lines
3.1 KiB
Python
from io import BytesIO
|
|
|
|
from helper import unittest, PillowTestCase
|
|
from PIL import Image, DdsImagePlugin
|
|
|
|
TEST_FILE_DXT1 = "Tests/images/dxt1-rgb-4bbp-noalpha_MipMaps-1.dds"
|
|
TEST_FILE_DXT3 = "Tests/images/dxt3-argb-8bbp-explicitalpha_MipMaps-1.dds"
|
|
TEST_FILE_DXT5 = "Tests/images/dxt5-argb-8bbp-interpolatedalpha_MipMaps-1.dds"
|
|
TEST_FILE_DX10_BC7 = "Tests/images/bc7-argb-8bpp_MipMaps-1.dds"
|
|
|
|
|
|
class TestFileDds(PillowTestCase):
|
|
"""Test DdsImagePlugin"""
|
|
|
|
def test_sanity_dxt1(self):
|
|
"""Check DXT1 images can be opened"""
|
|
target = Image.open(TEST_FILE_DXT1.replace('.dds', '.png'))
|
|
|
|
im = Image.open(TEST_FILE_DXT1)
|
|
im.load()
|
|
|
|
self.assertEqual(im.format, "DDS")
|
|
self.assertEqual(im.mode, "RGBA")
|
|
self.assertEqual(im.size, (256, 256))
|
|
|
|
self.assert_image_equal(target.convert('RGBA'), im)
|
|
|
|
def test_sanity_dxt5(self):
|
|
"""Check DXT5 images can be opened"""
|
|
|
|
target = Image.open(TEST_FILE_DXT5.replace('.dds', '.png'))
|
|
|
|
im = Image.open(TEST_FILE_DXT5)
|
|
im.load()
|
|
|
|
self.assertEqual(im.format, "DDS")
|
|
self.assertEqual(im.mode, "RGBA")
|
|
self.assertEqual(im.size, (256, 256))
|
|
|
|
self.assert_image_equal(target, im)
|
|
|
|
def test_sanity_dxt3(self):
|
|
"""Check DXT3 images can be opened"""
|
|
|
|
target = Image.open(TEST_FILE_DXT3.replace('.dds', '.png'))
|
|
|
|
im = Image.open(TEST_FILE_DXT3)
|
|
im.load()
|
|
|
|
self.assertEqual(im.format, "DDS")
|
|
self.assertEqual(im.mode, "RGBA")
|
|
self.assertEqual(im.size, (256, 256))
|
|
|
|
self.assert_image_equal(target, im)
|
|
|
|
def test_dx10_bc7(self):
|
|
"""Check DX10 images can be opened"""
|
|
|
|
target = Image.open(TEST_FILE_DX10_BC7.replace('.dds', '.png'))
|
|
|
|
im = Image.open(TEST_FILE_DX10_BC7)
|
|
im.load()
|
|
|
|
self.assertEqual(im.format, "DDS")
|
|
self.assertEqual(im.mode, "RGBA")
|
|
self.assertEqual(im.size, (256, 256))
|
|
|
|
self.assert_image_equal(target, im)
|
|
|
|
def test__validate_true(self):
|
|
"""Check valid prefix"""
|
|
# Arrange
|
|
prefix = b"DDS etc"
|
|
|
|
# Act
|
|
output = DdsImagePlugin._validate(prefix)
|
|
|
|
# Assert
|
|
self.assertTrue(output)
|
|
|
|
def test__validate_false(self):
|
|
"""Check invalid prefix"""
|
|
# Arrange
|
|
prefix = b"something invalid"
|
|
|
|
# Act
|
|
output = DdsImagePlugin._validate(prefix)
|
|
|
|
# Assert
|
|
self.assertFalse(output)
|
|
|
|
def test_short_header(self):
|
|
""" Check a short header"""
|
|
with open(TEST_FILE_DXT5, 'rb') as f:
|
|
img_file = f.read()
|
|
|
|
def short_header():
|
|
Image.open(BytesIO(img_file[:119]))
|
|
|
|
self.assertRaises(IOError, short_header)
|
|
|
|
def test_short_file(self):
|
|
""" Check that the appropriate error is thrown for a short file"""
|
|
|
|
with open(TEST_FILE_DXT5, 'rb') as f:
|
|
img_file = f.read()
|
|
|
|
def short_file():
|
|
im = Image.open(BytesIO(img_file[:-100]))
|
|
im.load()
|
|
|
|
self.assertRaises(IOError, short_file)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|