Pillow/Tests/test_file_spider.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

120 lines
3.0 KiB
Python

import tempfile
from PIL import Image, ImageSequence, SpiderImagePlugin
from .helper import PillowTestCase, hopper
TEST_FILE = "Tests/images/hopper.spider"
class TestImageSpider(PillowTestCase):
def test_sanity(self):
im = Image.open(TEST_FILE)
im.load()
self.assertEqual(im.mode, "F")
self.assertEqual(im.size, (128, 128))
self.assertEqual(im.format, "SPIDER")
def test_unclosed_file(self):
def open():
im = Image.open(TEST_FILE)
im.load()
self.assert_warning(None, open)
def test_save(self):
# Arrange
temp = self.tempfile("temp.spider")
im = hopper()
# Act
im.save(temp, "SPIDER")
# Assert
im2 = Image.open(temp)
self.assertEqual(im2.mode, "F")
self.assertEqual(im2.size, (128, 128))
self.assertEqual(im2.format, "SPIDER")
def test_tempfile(self):
# Arrange
im = hopper()
# Act
with tempfile.TemporaryFile() as fp:
im.save(fp, "SPIDER")
# Assert
fp.seek(0)
reloaded = Image.open(fp)
self.assertEqual(reloaded.mode, "F")
self.assertEqual(reloaded.size, (128, 128))
self.assertEqual(reloaded.format, "SPIDER")
def test_isSpiderImage(self):
self.assertTrue(SpiderImagePlugin.isSpiderImage(TEST_FILE))
def test_tell(self):
# Arrange
im = Image.open(TEST_FILE)
# Act
index = im.tell()
# Assert
self.assertEqual(index, 0)
def test_n_frames(self):
im = Image.open(TEST_FILE)
self.assertEqual(im.n_frames, 1)
self.assertFalse(im.is_animated)
def test_loadImageSeries(self):
# Arrange
not_spider_file = "Tests/images/hopper.ppm"
file_list = [TEST_FILE, not_spider_file, "path/not_found.ext"]
# Act
img_list = SpiderImagePlugin.loadImageSeries(file_list)
# Assert
self.assertEqual(len(img_list), 1)
self.assertIsInstance(img_list[0], Image.Image)
self.assertEqual(img_list[0].size, (128, 128))
def test_loadImageSeries_no_input(self):
# Arrange
file_list = None
# Act
img_list = SpiderImagePlugin.loadImageSeries(file_list)
# Assert
self.assertIsNone(img_list)
def test_isInt_not_a_number(self):
# Arrange
not_a_number = "a"
# Act
ret = SpiderImagePlugin.isInt(not_a_number)
# Assert
self.assertEqual(ret, 0)
def test_invalid_file(self):
invalid_file = "Tests/images/invalid.spider"
self.assertRaises(IOError, Image.open, invalid_file)
def test_nonstack_file(self):
im = Image.open(TEST_FILE)
self.assertRaises(EOFError, im.seek, 0)
def test_nonstack_dos(self):
im = Image.open(TEST_FILE)
for i, frame in enumerate(ImageSequence.Iterator(im)):
if i > 1:
self.fail("Non-stack DOS file test failed")