def test_read__file_encoding(self):
filename = 'nonascii.mustache'
renderer = Renderer()
renderer.file_encoding = 'ascii'
self.assertRaises(UnicodeDecodeError, self._read, renderer, filename)
renderer.file_encoding = 'utf-8'
actual = self._read(renderer, filename)
self.assertEquals(actual, u'non-ascii: é')
