fix error on register an root path Controller

router.go

@@ -670,17 +670,14 @@ func (r *Router) String() string {
 
 func (r *Router) formatPath(path string) string {
 	path = strings.TrimSpace(path)
-	if path == "" || path == "/" {
-		return "/"
-	}
-
-	if path[0] != '/' {
-		path = "/" + path
-	}
-
 	if !r.strictLastSlash {
 		path = strings.TrimRight(path, "/")
 	}
 
-	return path
+	if path == "" || path == "/" {
+		return "/"
+	}
+
+	// fix: "//home" -> "home"
+	return "/" + strings.TrimLeft(path, "/")
 }

router_test.go

@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	"github.com/gookit/goutil/envutil"
+	"github.com/gookit/goutil/testutil"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -43,10 +44,15 @@ type SiteController struct {
 }
 
 func (c *SiteController) AddRoutes(r *Router) {
+	r.GET("", c.Index)
 	r.GET("{id}", c.Get)
 	r.POST("", c.Post)
 }
 
+func (c *SiteController) Index(ctx *Context) {
+	ctx.WriteString("hello, in " + ctx.URL().Path)
+}
+
 func (c *SiteController) Get(ctx *Context) {
 	ctx.WriteString("hello, in " + ctx.URL().Path)
 	ctx.WriteString("\n ok")
@@ -341,6 +347,24 @@ func TestRouter_Group(t *testing.T) {
 	})
 }
 
+func TestRouter_Controller(t *testing.T) {
+	is := assert.New(t)
+	r := New()
+	Debug(true)
+
+	r.Controller("/", &SiteController{})
+
+	w := testutil.MockRequest(r, http.MethodGet, "/", nil)
+	is.Equal(200, w.Code)
+	is.Equal("hello, in /", w.Body.String())
+
+	w = testutil.MockRequest(r, http.MethodGet, "/", nil)
+	is.Equal(200, w.Code)
+	is.Equal("hello, in /", w.Body.String())
+
+	Debug(false)
+}
+
 func TestDynamicRoute(t *testing.T) {
 	is := assert.New(t)