[pat] API allows update which does not change any data

components/gitpod-db/go/personal_access_token.go

@@ -235,10 +235,6 @@ func UpdatePersonalAccessTokenForUser(ctx context.Context, conn *gorm.DB, opts U
 		return PersonalAccessToken{}, fmt.Errorf("failed to update personal access token: %w", tx.Error)
 	}
 
-	if tx.RowsAffected == 0 {
-		return PersonalAccessToken{}, fmt.Errorf("token (ID: %s) for user (ID: %s) does not exist: %w", opts.TokenID, opts.UserID, ErrorNotFound)
-	}
-
 	return GetPersonalAccessTokenForUser(ctx, conn, opts.TokenID, opts.UserID)
 }
 

components/gitpod-db/go/personal_access_token_test.go

@@ -285,6 +285,24 @@ func TestUpdatePersonalAccessTokenForUser(t *testing.T) {
 		require.ErrorIs(t, err, db.ErrorNotFound)
 	})
 
+	t.Run("no modified field completes gracefully", func(t *testing.T) {
+		conn := dbtest.ConnectForTests(t)
+		name := "first"
+
+		created := dbtest.CreatePersonalAccessTokenRecords(t, conn, dbtest.NewPersonalAccessToken(t, db.PersonalAccessToken{
+			Name: name,
+		}))[0]
+
+		udpated, err := db.UpdatePersonalAccessTokenForUser(context.Background(), conn, db.UpdatePersonalAccessTokenOpts{
+			TokenID: created.ID,
+			UserID:  created.UserID,
+			Name:    &name,
+		})
+		require.NoError(t, err)
+		require.Equal(t, name, udpated.Name)
+		require.Len(t, udpated.Scopes, 0)
+	})
+
 	t.Run("no update when all options are nil", func(t *testing.T) {
 		conn := dbtest.ConnectForTests(t)
 

components/public-api-server/pkg/apiv1/tokens_test.go

@@ -552,6 +552,31 @@ func TestTokensService_UpdatePersonalAccessToken(t *testing.T) {
 		require.Equal(t, connect.CodeInvalidArgument, connect.CodeOf(err))
 	})
 
+	t.Run("allows unmodified udpate", func(t *testing.T) {
+		serverMock, _, client := setupTokensService(t, withTokenFeatureEnabled)
+
+		serverMock.EXPECT().GetLoggedInUser(gomock.Any()).Return(user, nil).Times(2)
+
+		createResponse, err := client.CreatePersonalAccessToken(context.Background(), connect.NewRequest(&v1.CreatePersonalAccessTokenRequest{
+			Token: &v1.PersonalAccessToken{
+				Name:           "first",
+				ExpirationTime: timestamppb.Now(),
+			},
+		}))
+		require.NoError(t, err)
+
+		_, err = client.UpdatePersonalAccessToken(context.Background(), connect.NewRequest(&v1.UpdatePersonalAccessTokenRequest{
+			Token: &v1.PersonalAccessToken{
+				Id:   createResponse.Msg.GetToken().GetId(),
+				Name: createResponse.Msg.GetToken().GetName(),
+			},
+			UpdateMask: &fieldmaskpb.FieldMask{
+				Paths: []string{"name", "scopes"},
+			},
+		}))
+		require.NoError(t, err)
+	})
+
 	t.Run("default updates both name and scopes, when no mask specified", func(t *testing.T) {
 		serverMock, _, client := setupTokensService(t, withTokenFeatureEnabled)