From e1d21a73cf1a9e1e14c3770f1daf57e6914c90bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Adamski?= <michal@ert.pl>
Date: Fri, 1 Mar 2019 08:27:11 +0100
Subject: [PATCH] tests and fix for findChildByKind executed on nil node

---
 router.go      | 3 +++
 router_test.go | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/router.go b/router.go
index 73f0b68b..aae99a37 100644
--- a/router.go
+++ b/router.go
@@ -218,6 +218,9 @@ func (n *node) findChildWithLabel(l byte) *node {
 }
 
 func (n *node) findChildByKind(t kind) *node {
+	if n == nil {
+		return nil
+	}
 	for _, c := range n.children {
 		if c.kind == t {
 			return c
diff --git a/router_test.go b/router_test.go
index a5d53c0a..f084fb98 100644
--- a/router_test.go
+++ b/router_test.go
@@ -756,6 +756,12 @@ func TestRouterPriorityNotFound(t *testing.T) {
 		c.Set("b", 2)
 		return nil
 	})
+	r.Add(http.MethodGet, "/:lang/", func(c Context) error {
+		return nil
+	})
+	r.Add(http.MethodGet, "/:lang/dupa", func(c Context) error {
+		return nil
+	})
 
 	// Find
 	r.Find(http.MethodGet, "/a/foo", c)