fix: go-chi#609 and go-chi#636

Author: helios741

_examples/609/main.go

@@ -1474,7 +1474,7 @@ func TestMuxRegexp2(t *testing.T) {
 	ts := httptest.NewServer(r)
 	defer ts.Close()
 
-	if _, body := testRequest(t, ts, "GET", "/foo-.json", nil); body != "" {
+	if resp, body := testRequest(t, ts, "GET", "/foo-.json", nil); resp.StatusCode != http.StatusNotFound {
 		t.Fatalf(body)
 	}
 	if _, body := testRequest(t, ts, "GET", "/foo-abc.json", nil); body != "abc" {

mux_test.go

@@ -429,12 +429,11 @@ func (n *node) findRoute(rctx *Context, method methodTyp, path string) *node {
 					} else {
 						continue
 					}
-				} else if ntyp == ntRegexp && p == 0 {
-					continue
 				}
 
 				if ntyp == ntRegexp && xn.rex != nil {
 					if !xn.rex.MatchString(xsearch[:p]) {
+						xn = nil
 						continue
 					}
 				} else if strings.IndexByte(xsearch[:p], '/') != -1 {
@@ -471,8 +470,6 @@ func (n *node) findRoute(rctx *Context, method methodTyp, path string) *node {
 				xsearch = search
 			}
 
-			rctx.routeParams.Values = append(rctx.routeParams.Values, "")
-
 		default:
 			// catch-all nodes
 			rctx.routeParams.Values = append(rctx.routeParams.Values, search)

tree.go

@@ -9,6 +9,8 @@ import (
 
 func TestTree(t *testing.T) {
 	hStub := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
+	misMatch1 := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
+	misMatch2 := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
 	hIndex := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
 	hFavicon := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
 	hArticleList := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {})
@@ -35,6 +37,9 @@ func TestTree(t *testing.T) {
 	tr.InsertRoute(mGET, "/", hIndex)
 	tr.InsertRoute(mGET, "/favicon.ico", hFavicon)
 
+	tr.InsertRoute(mGET, "/{:[a-z]+}/", misMatch1)
+	tr.InsertRoute(mGET, "/{:[1-9]\\d*}/test", misMatch2)
+
 	tr.InsertRoute(mGET, "/pages/*", hStub)
 
 	tr.InsertRoute(mGET, "/article", hArticleList)
@@ -78,14 +83,19 @@ func TestTree(t *testing.T) {
 	tr.InsertRoute(mGET, "/hubs/{hubID}/users", hHubView3)
 
 	tests := []struct {
-		r string       // input request path
-		h http.Handler // output matched handler
-		k []string     // output param keys
-		v []string     // output param values
+		r        string       // input request path
+		h        http.Handler // output matched handler
+		k        []string     // output param keys
+		v        []string     // output param values
+		mismatch bool         // if true, it means the match should fail
 	}{
 		{r: "/", h: hIndex, k: []string{}, v: []string{}},
 		{r: "/favicon.ico", h: hFavicon, k: []string{}, v: []string{}},
 
+		{r: "//", h: misMatch1, k: []string{}, v: []string{}, mismatch: true},
+		{r: "/123/test", h: misMatch2, k: []string{""}, v: []string{"123"}},
+		{r: "//test", h: misMatch2, k: []string{}, v: []string{}, mismatch: true},
+
 		{r: "/pages", h: nil, k: []string{}, v: []string{}},
 		{r: "/pages/", h: hStub, k: []string{"*"}, v: []string{""}},
 		{r: "/pages/yes", h: hStub, k: []string{"*"}, v: []string{"yes"}},
@@ -129,7 +139,14 @@ func TestTree(t *testing.T) {
 	for i, tt := range tests {
 		rctx := NewRouteContext()
 
-		_, handlers, _ := tr.FindRoute(rctx, mGET, tt.r)
+		n, handlers, _ := tr.FindRoute(rctx, mGET, tt.r)
+		if tt.mismatch && n != nil {
+			t.Errorf("input [%d]: find '%s' should mismatch but get node(%+v)!", i, tt.r, n)
+			continue
+		}
+		if tt.mismatch {
+			continue
+		}
 
 		var handler http.Handler
 		if methodHandler, ok := handlers[mGET]; ok {