def test_write_file(self):
file_opener = config.File(mode="w")
the_file = file_opener(self.tempfile.name)
the_file.write("cool")
the_file.close()
with open(self.tempfile.name) as f:
self.assertEqual(f.read(), "cool")
def test_read_file(self):
file_opener = config.File()
the_file = file_opener(self.tempfile.name)
self.assertEqual(the_file.read(), "test")
def test_no_file(self):
file_opener = config.File()
with self.assertRaises(ValueError):
file_opener("/tmp/does_not_exist")