fix: support for oauth username patching

Added unit tests for the operation

src/appier_extras/parts/admin/part.py

@@ -2692,10 +2692,14 @@ def _on_touch_login(self, account):
         self.flush_settings()
 
     def _on_change_username(self, account, username):
-        oauth_tokens = models.OAuthToken.find(username = username, limit = 0)
+        oauth_tokens = models.OAuthToken.find(
+            username = username,
+            rules = False,
+            limit = 0
+        )
         for oauth_token in oauth_tokens:
             oauth_token.username = account.username
-            oauth_token.save()
+            oauth_token.save(immutables_a = False)
 
     @property
     def _last_login_s(self, format = "%Y-%m-%d %H:%M:%S UTC"):

src/appier_extras/test/admin/models/oauth/oauth_token.py

@@ -147,3 +147,54 @@ def test_reuse(self):
         self.assertEqual(oauth_token.username, "username")
         self.assertEqual(oauth_token.scope, ["admin", "user"])
         self.assertEqual(oauth_token.tokens, ["user"])
+
+    def test_change_username(self):
+        account = appier_extras.admin.Account()
+        account.username = "username"
+        account.email = "username@domain.com"
+        account.password = "password"
+        account.password_confirm = "password"
+        account.save()
+
+        oauth_client = appier_extras.admin.OAuthClient()
+        oauth_client.name = "name"
+        oauth_client.redirect_uri = "http://localhost/oauth"
+        oauth_client.save()
+
+        self.assertNotEqual(oauth_client.id, None)
+        self.assertNotEqual(oauth_client.client_id, None)
+        self.assertNotEqual(oauth_client.client_secret, None)
+        self.assertEqual(oauth_client.name, "name")
+        self.assertEqual(oauth_client.redirect_uri, "http://localhost/oauth")
+
+        oauth_token = oauth_client.build_token_s(username = "username", scope = ["admin", "user"])
+
+        self.assertNotEqual(oauth_token.id, None)
+        self.assertNotEqual(oauth_token.access_token, None)
+        self.assertNotEqual(oauth_token.authorization_code, None)
+        self.assertNotEqual(oauth_token.authorization_code_date, None)
+        self.assertEqual(oauth_token.client.id, oauth_client.id)
+        self.assertEqual(oauth_token.username, "username")
+        self.assertEqual(oauth_token.scope, ["admin", "user"])
+        self.assertEqual(oauth_token.tokens, ["user"])
+
+        account = account.reload()
+        account.change_username_s("username_changed")
+
+        oauth_token_p = oauth_token
+        oauth_token = oauth_token.reload(rules = False)
+
+        self.assertNotEqual(oauth_token.id, None)
+        self.assertNotEqual(oauth_token.access_token, None)
+        self.assertNotEqual(oauth_token.authorization_code, None)
+        self.assertNotEqual(oauth_token.authorization_code_date, None)
+        self.assertEqual(oauth_token.client.id, oauth_client.id)
+        self.assertEqual(oauth_token.username, "username_changed")
+        self.assertEqual(oauth_token.scope, ["admin", "user"])
+        self.assertEqual(oauth_token.tokens, ["user"])
+
+        self.assertNotEqual(id(oauth_token), id(oauth_token_p))
+        self.assertEqual(oauth_token.id, oauth_token_p.id)
+        self.assertEqual(oauth_token.access_token, oauth_token_p.access_token)
+        self.assertEqual(oauth_token.authorization_code, oauth_token_p.authorization_code)
+        self.assertEqual(oauth_token.authorization_code_date, oauth_token_p.authorization_code_date)