def test_get_item(self):
metadata = Metadata(("key", "value1"), ("key", "value2"),
("key2", "other value"))
self.assertEqual(metadata["key"], "value1")
self.assertEqual(metadata["key2"], "other value")
self.assertEqual(metadata.get("key"), "value1")
self.assertEqual(metadata.get("key2"), "other value")
with self.assertRaises(KeyError):
metadata["key not found"]
self.assertIsNone(metadata.get("key not found"))
def test_delete_values(self):
metadata = Metadata(*self._MULTI_ENTRY_DATA)
del metadata["key1"]
self.assertEqual(metadata.get("key1"), "other value 1")
metadata.delete_all("key1")
self.assertNotIn("key1", metadata)
metadata.delete_all("key2")
self.assertEqual(len(metadata), 0)
with self.assertRaises(KeyError):
del metadata["other key"]