def should_return_true_after_converting_image(self):
filename = self.get_test_image_path('test.png')
self.assertTrue(convert_image(filename, self.dst_filename))
self.assertTrue(os.path.isfile(self.dst_filename))
def should_return_true_after_converting_and_replacing_image(self):
filename = self.get_test_image_path('test.jpg')
shutil.copyfile(filename, self.dst_filename)
self.assertTrue(convert_image(self.dst_filename, self.dst_filename))
self.assertTrue(os.path.isfile(self.dst_filename))
def should_return_false_if_not_an_image(self):
filename = self.get_test_image_path('test.txt')
self.assertFalse(convert_image(filename, self.dst_filename))
self.assertFalse(os.path.isfile(self.dst_filename))