From 0c933643e2361c1b246522d30c18240c26a4ccf1 Mon Sep 17 00:00:00 2001
From: astaxie <xiemengjun@gmail.com>
Date: Fri, 19 Dec 2014 15:33:51 +0800
Subject: [PATCH] improve the empty router

---
 tree.go      | 3 +++
 tree_test.go | 6 +++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/tree.go b/tree.go
index 25947442..93e87470 100644
--- a/tree.go
+++ b/tree.go
@@ -422,6 +422,9 @@ func (leaf *leafInfo) match(wildcardValues []string) (ok bool, params map[string
 // "/admin/" -> ["admin"]
 // "/admin/users" -> ["admin", "users"]
 func splitPath(key string) []string {
+	if key == "" {
+		return []string{}
+	}
 	elements := strings.Split(key, "/")
 	if elements[0] == "" {
 		elements = elements[1:]
diff --git a/tree_test.go b/tree_test.go
index 358898e7..fa289716 100644
--- a/tree_test.go
+++ b/tree_test.go
@@ -149,7 +149,11 @@ func TestAddTree2(t *testing.T) {
 }
 
 func TestSplitPath(t *testing.T) {
-	a := splitPath("/")
+	a := splitPath("")
+	if len(a) != 0 {
+		t.Fatal("/ should retrun []")
+	}
+	a = splitPath("/")
 	if len(a) != 0 {
 		t.Fatal("/ should retrun []")
 	}