379 lines
9.3 KiB
Go
379 lines
9.3 KiB
Go
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// Copyright 2013 Julien Schmidt. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be found
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// in the LICENSE file.
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package httprouter
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import (
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"errors"
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"fmt"
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"net/http"
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"net/http/httptest"
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"reflect"
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"testing"
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)
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type mockResponseWriter struct{}
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func (m *mockResponseWriter) Header() (h http.Header) {
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return http.Header{}
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}
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func (m *mockResponseWriter) Write(p []byte) (n int, err error) {
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return len(p), nil
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}
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func (m *mockResponseWriter) WriteString(s string) (n int, err error) {
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return len(s), nil
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}
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func (m *mockResponseWriter) WriteHeader(int) {}
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func TestParams(t *testing.T) {
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ps := Params{
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Param{"param1", "value1"},
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Param{"param2", "value2"},
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Param{"param3", "value3"},
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}
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for i := range ps {
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if val := ps.ByName(ps[i].Key); val != ps[i].Value {
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t.Errorf("Wrong value for %s: Got %s; Want %s", ps[i].Key, val, ps[i].Value)
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}
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}
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if val := ps.ByName("noKey"); val != "" {
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t.Errorf("Expected empty string for not found key; got: %s", val)
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}
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}
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func TestRouter(t *testing.T) {
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router := New()
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routed := false
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router.Handle("GET", "/user/:name", func(w http.ResponseWriter, r *http.Request, ps Params) {
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routed = true
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want := Params{Param{"name", "gopher"}}
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if !reflect.DeepEqual(ps, want) {
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t.Fatalf("wrong wildcard values: want %v, got %v", want, ps)
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}
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})
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w := new(mockResponseWriter)
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req, _ := http.NewRequest("GET", "/user/gopher", nil)
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router.ServeHTTP(w, req)
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if !routed {
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t.Fatal("routing failed")
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}
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}
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type handlerStruct struct {
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handeled *bool
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}
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func (h handlerStruct) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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*h.handeled = true
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}
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func TestRouterAPI(t *testing.T) {
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var get, head, options, post, put, patch, delete, handler, handlerFunc bool
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httpHandler := handlerStruct{&handler}
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router := New()
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router.GET("/GET", func(w http.ResponseWriter, r *http.Request, _ Params) {
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get = true
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})
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router.HEAD("/GET", func(w http.ResponseWriter, r *http.Request, _ Params) {
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head = true
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})
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router.OPTIONS("/GET", func(w http.ResponseWriter, r *http.Request, _ Params) {
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options = true
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})
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router.POST("/POST", func(w http.ResponseWriter, r *http.Request, _ Params) {
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post = true
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})
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router.PUT("/PUT", func(w http.ResponseWriter, r *http.Request, _ Params) {
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put = true
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})
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router.PATCH("/PATCH", func(w http.ResponseWriter, r *http.Request, _ Params) {
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patch = true
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})
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router.DELETE("/DELETE", func(w http.ResponseWriter, r *http.Request, _ Params) {
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delete = true
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})
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router.Handler("GET", "/Handler", httpHandler)
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router.HandlerFunc("GET", "/HandlerFunc", func(w http.ResponseWriter, r *http.Request) {
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handlerFunc = true
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})
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w := new(mockResponseWriter)
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r, _ := http.NewRequest("GET", "/GET", nil)
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router.ServeHTTP(w, r)
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if !get {
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t.Error("routing GET failed")
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}
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r, _ = http.NewRequest("HEAD", "/GET", nil)
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router.ServeHTTP(w, r)
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if !head {
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t.Error("routing HEAD failed")
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}
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r, _ = http.NewRequest("OPTIONS", "/GET", nil)
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router.ServeHTTP(w, r)
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if !options {
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t.Error("routing OPTIONS failed")
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}
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r, _ = http.NewRequest("POST", "/POST", nil)
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router.ServeHTTP(w, r)
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if !post {
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t.Error("routing POST failed")
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}
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r, _ = http.NewRequest("PUT", "/PUT", nil)
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router.ServeHTTP(w, r)
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if !put {
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t.Error("routing PUT failed")
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}
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r, _ = http.NewRequest("PATCH", "/PATCH", nil)
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router.ServeHTTP(w, r)
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if !patch {
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t.Error("routing PATCH failed")
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}
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r, _ = http.NewRequest("DELETE", "/DELETE", nil)
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router.ServeHTTP(w, r)
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if !delete {
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t.Error("routing DELETE failed")
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}
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r, _ = http.NewRequest("GET", "/Handler", nil)
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router.ServeHTTP(w, r)
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if !handler {
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t.Error("routing Handler failed")
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}
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r, _ = http.NewRequest("GET", "/HandlerFunc", nil)
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router.ServeHTTP(w, r)
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if !handlerFunc {
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t.Error("routing HandlerFunc failed")
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}
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}
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func TestRouterRoot(t *testing.T) {
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router := New()
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recv := catchPanic(func() {
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router.GET("noSlashRoot", nil)
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})
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if recv == nil {
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t.Fatal("registering path not beginning with '/' did not panic")
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}
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}
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func TestRouterNotAllowed(t *testing.T) {
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handlerFunc := func(_ http.ResponseWriter, _ *http.Request, _ Params) {}
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router := New()
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router.POST("/path", handlerFunc)
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// Test not allowed
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r, _ := http.NewRequest("GET", "/path", nil)
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w := httptest.NewRecorder()
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router.ServeHTTP(w, r)
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if !(w.Code == http.StatusMethodNotAllowed) {
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t.Errorf("NotAllowed handling failed: Code=%d, Header=%v", w.Code, w.Header())
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}
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w = httptest.NewRecorder()
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responseText := "custom method"
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router.MethodNotAllowed = func(w http.ResponseWriter, req *http.Request) {
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w.WriteHeader(http.StatusTeapot)
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w.Write([]byte(responseText))
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}
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router.ServeHTTP(w, r)
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if got := w.Body.String(); !(got == responseText) {
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t.Errorf("unexpected response got %q want %q", got, responseText)
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}
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if w.Code != http.StatusTeapot {
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t.Errorf("unexpected response code %d want %d", w.Code, http.StatusTeapot)
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}
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}
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func TestRouterNotFound(t *testing.T) {
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handlerFunc := func(_ http.ResponseWriter, _ *http.Request, _ Params) {}
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router := New()
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router.GET("/path", handlerFunc)
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router.GET("/dir/", handlerFunc)
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router.GET("/", handlerFunc)
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testRoutes := []struct {
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route string
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code int
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header string
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}{
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{"/path/", 301, "map[Location:[/path]]"}, // TSR -/
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{"/dir", 301, "map[Location:[/dir/]]"}, // TSR +/
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{"", 301, "map[Location:[/]]"}, // TSR +/
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{"/PATH", 301, "map[Location:[/path]]"}, // Fixed Case
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{"/DIR/", 301, "map[Location:[/dir/]]"}, // Fixed Case
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{"/PATH/", 301, "map[Location:[/path]]"}, // Fixed Case -/
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{"/DIR", 301, "map[Location:[/dir/]]"}, // Fixed Case +/
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{"/../path", 301, "map[Location:[/path]]"}, // CleanPath
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{"/nope", 404, ""}, // NotFound
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}
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for _, tr := range testRoutes {
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r, _ := http.NewRequest("GET", tr.route, nil)
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w := httptest.NewRecorder()
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router.ServeHTTP(w, r)
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if !(w.Code == tr.code && (w.Code == 404 || fmt.Sprint(w.Header()) == tr.header)) {
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t.Errorf("NotFound handling route %s failed: Code=%d, Header=%v", tr.route, w.Code, w.Header())
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}
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}
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// Test custom not found handler
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var notFound bool
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router.NotFound = func(rw http.ResponseWriter, r *http.Request) {
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rw.WriteHeader(404)
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notFound = true
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}
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r, _ := http.NewRequest("GET", "/nope", nil)
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w := httptest.NewRecorder()
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router.ServeHTTP(w, r)
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if !(w.Code == 404 && notFound == true) {
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t.Errorf("Custom NotFound handler failed: Code=%d, Header=%v", w.Code, w.Header())
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}
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// Test other method than GET (want 307 instead of 301)
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router.PATCH("/path", handlerFunc)
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r, _ = http.NewRequest("PATCH", "/path/", nil)
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w = httptest.NewRecorder()
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router.ServeHTTP(w, r)
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if !(w.Code == 307 && fmt.Sprint(w.Header()) == "map[Location:[/path]]") {
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t.Errorf("Custom NotFound handler failed: Code=%d, Header=%v", w.Code, w.Header())
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}
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// Test special case where no node for the prefix "/" exists
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router = New()
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router.GET("/a", handlerFunc)
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r, _ = http.NewRequest("GET", "/", nil)
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w = httptest.NewRecorder()
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router.ServeHTTP(w, r)
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if !(w.Code == 404) {
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t.Errorf("NotFound handling route / failed: Code=%d", w.Code)
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}
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}
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func TestRouterPanicHandler(t *testing.T) {
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router := New()
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panicHandled := false
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router.PanicHandler = func(rw http.ResponseWriter, r *http.Request, p interface{}) {
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panicHandled = true
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}
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router.Handle("PUT", "/user/:name", func(_ http.ResponseWriter, _ *http.Request, _ Params) {
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panic("oops!")
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})
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w := new(mockResponseWriter)
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req, _ := http.NewRequest("PUT", "/user/gopher", nil)
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defer func() {
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if rcv := recover(); rcv != nil {
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t.Fatal("handling panic failed")
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}
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}()
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router.ServeHTTP(w, req)
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if !panicHandled {
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t.Fatal("simulating failed")
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}
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}
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func TestRouterLookup(t *testing.T) {
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routed := false
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wantHandle := func(_ http.ResponseWriter, _ *http.Request, _ Params) {
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routed = true
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}
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wantParams := Params{Param{"name", "gopher"}}
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router := New()
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// try empty router first
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handle, _, tsr := router.Lookup("GET", "/nope")
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if handle != nil {
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t.Fatalf("Got handle for unregistered pattern: %v", handle)
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}
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if tsr {
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t.Error("Got wrong TSR recommendation!")
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}
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// insert route and try again
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router.GET("/user/:name", wantHandle)
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handle, params, tsr := router.Lookup("GET", "/user/gopher")
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if handle == nil {
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t.Fatal("Got no handle!")
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} else {
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handle(nil, nil, nil)
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if !routed {
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t.Fatal("Routing failed!")
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}
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}
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if !reflect.DeepEqual(params, wantParams) {
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t.Fatalf("Wrong parameter values: want %v, got %v", wantParams, params)
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}
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handle, _, tsr = router.Lookup("GET", "/user/gopher/")
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if handle != nil {
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t.Fatalf("Got handle for unregistered pattern: %v", handle)
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}
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if !tsr {
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t.Error("Got no TSR recommendation!")
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}
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handle, _, tsr = router.Lookup("GET", "/nope")
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if handle != nil {
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t.Fatalf("Got handle for unregistered pattern: %v", handle)
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}
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if tsr {
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t.Error("Got wrong TSR recommendation!")
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}
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}
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type mockFileSystem struct {
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opened bool
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}
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func (mfs *mockFileSystem) Open(name string) (http.File, error) {
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mfs.opened = true
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return nil, errors.New("this is just a mock")
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}
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func TestRouterServeFiles(t *testing.T) {
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router := New()
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mfs := &mockFileSystem{}
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recv := catchPanic(func() {
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router.ServeFiles("/noFilepath", mfs)
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})
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if recv == nil {
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t.Fatal("registering path not ending with '*filepath' did not panic")
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}
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router.ServeFiles("/*filepath", mfs)
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w := new(mockResponseWriter)
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r, _ := http.NewRequest("GET", "/favicon.ico", nil)
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router.ServeHTTP(w, r)
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if !mfs.opened {
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t.Error("serving file failed")
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}
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}
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