def test_is_valid_image_none(self):
attachutil._imghdr = ImghdrMock('jpeg')
self.assertFalse(attachutil.is_valid_image('image/png', None))
self.assertEquals(None, attachutil._imghdr.path)
def test_is_valid_image_not_same_image_type(self):
attachutil._imghdr = ImghdrMock('jpeg')
self.assertFalse(attachutil.is_valid_image('image/png', 'foo'))
self.assertEquals('foo', attachutil._imghdr.path)
def test_is_valid_image_type_isnot_image(self):
attachutil._imghdr = ImghdrMock('png')
self.assertFalse(attachutil.is_valid_image('text/html', 'foo'))
self.assertEquals('foo', attachutil._imghdr.path)
def test_is_valid_image_file_isnot_image(self):
attachutil._imghdr = ImghdrMock(None)
self.assertFalse(attachutil.is_valid_image('image/png', 'foo'))
self.assertEquals('foo', attachutil._imghdr.path)
def test_is_valid_image_true(self):
attachutil._imghdr = ImghdrMock('png')
self.assertTrue(attachutil.is_valid_image('image/png', 'foo'))
self.assertEquals('foo', attachutil._imghdr.path)
