Pillow/Tests/test_file_gribstub.py
2017-03-04 23:19:41 +02:00

48 lines
1.2 KiB
Python

from helper import unittest, PillowTestCase, hopper
from PIL import GribStubImagePlugin, Image
TEST_FILE = "Tests/images/WAlaska.wind.7days.grb"
class TestFileGribStub(PillowTestCase):
def test_open(self):
# Act
im = Image.open(TEST_FILE)
# Assert
self.assertEqual(im.format, "GRIB")
# Dummy data from the stub
self.assertEqual(im.mode, "F")
self.assertEqual(im.size, (1, 1))
def test_invalid_file(self):
# Arrange
invalid_file = "Tests/images/flower.jpg"
# Act / Assert
self.assertRaises(SyntaxError,
lambda:
GribStubImagePlugin.GribStubImageFile(invalid_file))
def test_load(self):
# Arrange
im = Image.open(TEST_FILE)
# Act / Assert: stub cannot load without an implemented handler
self.assertRaises(IOError, im.load)
def test_save(self):
# Arrange
im = hopper()
tmpfile = self.tempfile("temp.grib")
# Act / Assert: stub cannot save without an implemented handler
self.assertRaises(IOError, lambda: im.save(tmpfile))
if __name__ == '__main__':
unittest.main()