feat(integrations): align slack parity

internal/handler/api/v1/slack_integration_handler_test.go

@@ -9,6 +9,14 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+
+	"github.com/gochat/gochat/internal/model"
+	"github.com/gochat/gochat/internal/repository"
+	"github.com/gochat/gochat/internal/service"
 )
 
 func setupSlackIntegrationRouter() *gin.Engine {
@@ -24,6 +32,31 @@ func setupSlackIntegrationRouter() *gin.Engine {
 	return r
 }
 
+func setupSlackIntegrationRouterWithService(svc *service.SlackIntegrationService) *gin.Engine {
+	gin.SetMode(gin.TestMode)
+	r := gin.New()
+	r.RedirectTrailingSlash = false
+
+	handler := NewSlackIntegrationHandler(svc)
+	integrations := r.Group("/api/v1/accounts/:account_id/integrations")
+	RegisterSlackIntegrationRoutes(integrations, handler)
+	return r
+}
+
+func setupSlackIntegrationHandlerDB(t *testing.T) (*gorm.DB, uint) {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open("file::memory:"), &gorm.Config{Logger: logger.Default.LogMode(logger.Silent)})
+	require.NoError(t, err)
+	require.NoError(t, db.AutoMigrate(&model.Account{}, &model.IntegrationHook{}))
+	account := &model.Account{Name: "Slack Handler Account"}
+	require.NoError(t, db.Create(account).Error)
+	t.Cleanup(func() {
+		sqlDB, _ := db.DB()
+		_ = sqlDB.Close()
+	})
+	return db, account.ID
+}
+
 // ========================================
 // SlackIntegration — param validation tests
 // ========================================
@@ -117,3 +150,51 @@ func TestSlackIntegration_ListAllChannels_BadAccountID(t *testing.T) {
 	errBody := resp["error"].(map[string]interface{})
 	assert.Contains(t, errBody["message"], "invalid account_id")
 }
+
+func TestSlackIntegration_Create_NoTrailingSlash_ReturnsRawAppPayload(t *testing.T) {
+	db, accountID := setupSlackIntegrationHandlerDB(t)
+	svc := service.NewSlackIntegrationService(repository.NewIntegrationHookRepo(db))
+	r := setupSlackIntegrationRouterWithService(svc)
+
+	w := httptest.NewRecorder()
+	body := bytes.NewReader([]byte(`{"slack_token":"xoxb-handler-token"}`))
+	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/integrations/slack", body)
+	req.Header.Set("Content-Type", "application/json")
+	r.ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	var resp map[string]interface{}
+	require.NoError(t, json.Unmarshal(w.Body.Bytes(), &resp))
+	assert.Equal(t, "slack", resp["id"])
+	assert.NotContains(t, resp, "success")
+	hooks := resp["hooks"].([]interface{})
+	require.Len(t, hooks, 1)
+	hook := hooks[0].(map[string]interface{})
+	assert.Equal(t, "slack", hook["app_id"])
+	assert.Equal(t, accountID, uint(hook["account_id"].(float64)))
+	assert.Equal(t, false, hook["status"])
+}
+
+func TestSlackIntegration_Delete_NoTrailingSlash_ReturnsEmptyOK(t *testing.T) {
+	db, accountID := setupSlackIntegrationHandlerDB(t)
+	require.NoError(t, db.Create(&model.IntegrationHook{AccountID: accountID, AppID: "slack", HookType: model.HookTypeSlack}).Error)
+	svc := service.NewSlackIntegrationService(repository.NewIntegrationHookRepo(db))
+	r := setupSlackIntegrationRouterWithService(svc)
+
+	w := httptest.NewRecorder()
+	req, _ := http.NewRequest("DELETE", "/api/v1/accounts/1/integrations/slack", nil)
+	r.ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusOK, w.Code)
+	assert.Empty(t, w.Body.String())
+}
+
+func TestSlackIntegration_Update_PutNoTrailingSlash_BadAccountID(t *testing.T) {
+	r := setupSlackIntegrationRouter()
+
+	w := httptest.NewRecorder()
+	req, _ := http.NewRequest("PUT", "/api/v1/accounts/abc/integrations/slack", nil)
+	r.ServeHTTP(w, req)
+
+	assert.Equal(t, http.StatusBadRequest, w.Code)
+}