Pillow/Tests/test_file_im.py

62 lines
1.4 KiB
Python
Raw Normal View History

2015-06-07 18:01:34 +03:00
from helper import unittest, PillowTestCase, hopper
2015-07-03 08:03:25 +03:00
from PIL import Image, ImImagePlugin
2015-06-07 18:01:34 +03:00
# sample im
TEST_IM = "Tests/images/hopper.im"
class TestFileIm(PillowTestCase):
def test_sanity(self):
im = Image.open(TEST_IM)
im.load()
self.assertEqual(im.mode, "RGB")
self.assertEqual(im.size, (128, 128))
self.assertEqual(im.format, "IM")
2017-08-12 08:54:54 +03:00
def test_tell(self):
# Arrange
im = Image.open(TEST_IM)
# Act
frame = im.tell()
# Assert
self.assertEqual(frame, 0)
2015-06-07 18:01:34 +03:00
def test_n_frames(self):
im = Image.open(TEST_IM)
self.assertEqual(im.n_frames, 1)
2015-06-30 06:25:00 +03:00
self.assertFalse(im.is_animated)
2015-06-07 18:01:34 +03:00
def test_eoferror(self):
im = Image.open(TEST_IM)
n_frames = im.n_frames
while True:
n_frames -= 1
try:
im.seek(n_frames)
break
except EOFError:
self.assertLess(im.tell(), n_frames)
2015-06-07 18:01:34 +03:00
def test_roundtrip(self):
out = self.tempfile('temp.im')
im = hopper()
im.save(out)
reread = Image.open(out)
self.assert_image_equal(reread, im)
2015-07-03 08:03:25 +03:00
def test_invalid_file(self):
2015-07-03 09:22:56 +03:00
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError,
lambda: ImImagePlugin.ImImageFile(invalid_file))
2015-07-03 08:03:25 +03:00
2015-06-07 18:01:34 +03:00
if __name__ == '__main__':
unittest.main()