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Test BufrStubImagePlugin for correctness

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hugovk 2017-03-04 16:35:54 +02:00
parent f09427c8bd
commit 35e6cb1d09
1 changed files with 27 additions and 3 deletions
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30
Tests/test_file_bufrstub.py
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@ -1,21 +1,45 @@
from helper import unittest, PillowTestCase, hopper from helper import unittest, PillowTestCase, hopper
from PIL import BufrStubImagePlugin from PIL import BufrStubImagePlugin, Image
TEST_FILE = "Tests/images/gfs.t06z.rassda.tm00.bufr_d"
class TestFileBufrStub(PillowTestCase): class TestFileBufrStub(PillowTestCase):
def test_open(self):
# Act
im = Image.open(TEST_FILE)
# Assert
self.assertEqual(im.format, "BUFR")
# Dummy data from the stub
self.assertEqual(im.mode, "F")
self.assertEqual(im.size, (1, 1))
def test_invalid_file(self): def test_invalid_file(self):
# Arrange
invalid_file = "Tests/images/flower.jpg" invalid_file = "Tests/images/flower.jpg"
# Act / Assert
self.assertRaises(SyntaxError, self.assertRaises(SyntaxError,
lambda: lambda:
BufrStubImagePlugin.BufrStubImageFile(invalid_file)) BufrStubImagePlugin.BufrStubImageFile(invalid_file))
def test_save(self): def test_load(self):
im = hopper() # Arrange
im = Image.open(TEST_FILE)
# Act / Assert: stub cannot load without an implemented handler
self.assertRaises(IOError, lambda: im.load())
def test_save(self):
# Arrange
im = hopper()
tmpfile = self.tempfile("temp.bufr") tmpfile = self.tempfile("temp.bufr")
# Act / Assert: stub cannot save without an implemented handler
self.assertRaises(IOError, lambda: im.save(tmpfile)) self.assertRaises(IOError, lambda: im.save(tmpfile))