Pillow/Tests/test_file_fli.py
2017-08-16 20:57:10 +10:00

97 lines
2.5 KiB
Python

from helper import unittest, PillowTestCase
from PIL import Image, FliImagePlugin
# created as an export of a palette image from Gimp2.6
# save as...-> hopper.fli, default options.
static_test_file = "Tests/images/hopper.fli"
# From https://samples.libav.org/fli-flc/
animated_test_file = "Tests/images/a.fli"
class TestFileFli(PillowTestCase):
def test_sanity(self):
im = Image.open(static_test_file)
im.load()
self.assertEqual(im.mode, "P")
self.assertEqual(im.size, (128, 128))
self.assertEqual(im.format, "FLI")
self.assertFalse(im.is_animated)
im = Image.open(animated_test_file)
self.assertEqual(im.mode, "P")
self.assertEqual(im.size, (320, 200))
self.assertEqual(im.format, "FLI")
self.assertEqual(im.info["duration"], 71)
self.assertTrue(im.is_animated)
def test_tell(self):
# Arrange
im = Image.open(static_test_file)
# Act
frame = im.tell()
# Assert
self.assertEqual(frame, 0)
def test_invalid_file(self):
invalid_file = "Tests/images/flower.jpg"
self.assertRaises(SyntaxError,
lambda: FliImagePlugin.FliImageFile(invalid_file))
def test_n_frames(self):
im = Image.open(static_test_file)
self.assertEqual(im.n_frames, 1)
self.assertFalse(im.is_animated)
im = Image.open(animated_test_file)
self.assertEqual(im.n_frames, 384)
self.assertTrue(im.is_animated)
def test_eoferror(self):
im = Image.open(animated_test_file)
n_frames = im.n_frames
while True:
n_frames -= 1
try:
im.seek(n_frames)
break
except EOFError:
self.assertLess(im.tell(), n_frames)
def test_seek_outside(self):
# Test negative seek
im = Image.open(static_test_file)
im.seek(-1)
self.assertEqual(im.tell(), 0)
# Test seek past end of file
self.assertRaises(EOFError, lambda: im.seek(2))
def test_seek_tell(self):
im = Image.open(animated_test_file)
layer_number = im.tell()
self.assertEqual(layer_number, 0)
im.seek(0)
layer_number = im.tell()
self.assertEqual(layer_number, 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)
if __name__ == '__main__':
unittest.main()