dwreeves commented on code in PR #62378:
URL: https://github.com/apache/airflow/pull/62378#discussion_r2847663977
##########
providers/snowflake/tests/unit/snowflake/hooks/test_snowflake.py:
##########
@@ -372,6 +372,47 @@ def
test_hook_should_support_prepare_basic_conn_params_and_uri(
assert SnowflakeHook(snowflake_conn_id="test_conn").get_uri() ==
expected_uri
assert
SnowflakeHook(snowflake_conn_id="test_conn")._get_conn_params() ==
expected_conn_params
+ def test_get_private_key_is_not_base64_encoded_with_headers(
+ self, unencrypted_temporary_private_key: Path,
encrypted_temporary_private_key: Path
+ ):
+ """Test get_private_key function skips base64 encoding if private key
headers are present."""
+ for pwd, key_file in [
+ (None, unencrypted_temporary_private_key),
+ (_PASSWORD, encrypted_temporary_private_key),
+ ]:
+ private_key_content = key_file.read_text()
+
+ p_key = serialization.load_pem_private_key(
+ private_key_content.encode(),
+ password=(pwd.encode() if pwd is not None else None),
+ backend=default_backend(),
+ )
+
+ pkb = p_key.private_bytes(
+ encoding=serialization.Encoding.DER,
+ format=serialization.PrivateFormat.PKCS8,
+ encryption_algorithm=serialization.NoEncryption(),
+ )
+
+ connection_kwargs: Any = {
+ **BASE_CONNECTION_KWARGS,
+ "password": pwd,
+ "extra": {
+ "database": "db",
+ "account": "airflow",
+ "warehouse": "af_wh",
+ "region": "af_region",
+ "role": "af_role",
+ "private_key_content": private_key_content,
+ },
+ }
+ with mock.patch.dict(
+ "os.environ",
AIRFLOW_CONN_TEST_CONN=Connection(**connection_kwargs).get_uri()
+ ):
+ conn_params =
SnowflakeHook(snowflake_conn_id="test_conn")._get_conn_params()
+ assert "private_key" in conn_params
+ assert pkb == conn_params["private_key"]
Review Comment:
> Are you worried about another base64.b64decode() call being added in
another part of _get_conn_params?
Yes.
I can assert it was either not called or not called with the first arg. If
we `try: load_pem_private_key except: b64decode`, then that works.
But-- and sorry for pushing back a bit-- I guess I'm left wondering why it
is so important to use `mock` to listen for a call, when it is more explicit
just assert the return value is what we expect. Mocking a call and
`assert_called` makes a lot of sense for function calls with side-effects or
for proper unit test isolation. Here the function can be a black box for all we
care; we just want to ensure the private key is read correctly into the params,
and I am testing this directly.
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