SNOW-2222046: Fix oauth values (#2423)

Author: sfc-gh-pbulawa

DESCRIPTION.md

@@ -13,6 +13,7 @@ Source code is also available at: https://github.com/snowflakedb/snowflake-conne
   - Disabled token caching for OAuth Client Credentials authentication
   - Added in-band HTTP exception telemetry.
   - Fixed a bug where timezoned timestamps fetched as pandas.DataFrame or pyarrow.Table would overflow for the sake of unnecessary precision. In the case where an overflow cannot be prevented a clear error will be raised now.
+  - Fix OAuth authenticator values.
 
 - v3.16.0(July 04,2025)
   - Bumped numpy dependency from <2.1.0 to <=2.2.4.

src/snowflake/connector/constants.py

@@ -440,5 +440,5 @@ class IterUnit(Enum):
 )
 
 _OAUTH_DEFAULT_SCOPE = "session:role:{role}"
-OAUTH_TYPE_AUTHORIZATION_CODE = "authorization_code"
-OAUTH_TYPE_CLIENT_CREDENTIALS = "client_credentials"
+OAUTH_TYPE_AUTHORIZATION_CODE = "oauth_authorization_code"
+OAUTH_TYPE_CLIENT_CREDENTIALS = "oauth_client_credentials"

test/unit/test_auth_oauth_auth_code.py

@@ -39,7 +39,7 @@ def test_auth_oauth_auth_code_oauth_type(omit_oauth_urls_check):
     )
     body = {"data": {}}
     auth.update_body(body)
-    assert body["data"]["OAUTH_TYPE"] == "authorization_code"
+    assert body["data"]["OAUTH_TYPE"] == "oauth_authorization_code"
 
 
 @pytest.mark.parametrize("rtr_enabled", [True, False])

test/unit/test_oauth_token.py

@@ -551,7 +551,7 @@ def test_client_creds_oauth_type():
     )
     body = {"data": {}}
     auth.update_body(body)
-    assert body["data"]["OAUTH_TYPE"] == "client_credentials"
+    assert body["data"]["OAUTH_TYPE"] == "oauth_client_credentials"
 
 
 @pytest.mark.skipolddriver