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- // Copyright 2015 Google Inc. All rights reserved.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
-
- package priority
-
- import (
- "errors"
- "net/http"
- "reflect"
- "testing"
-
- "github.com/google/martian/martiantest"
- "github.com/google/martian/parse"
- "github.com/google/martian/proxyutil"
-
- // Import to register header.Modifier with JSON parser.
- _ "github.com/google/martian/header"
- )
-
- func TestPriorityGroupModifyRequest(t *testing.T) {
- var order []string
-
- pg := NewGroup()
-
- tm50 := martiantest.NewModifier()
- tm50.RequestFunc(func(*http.Request) {
- order = append(order, "tm50")
- })
- pg.AddRequestModifier(tm50, 50)
-
- tm100a := martiantest.NewModifier()
- tm100a.RequestFunc(func(*http.Request) {
- order = append(order, "tm100a")
- })
- pg.AddRequestModifier(tm100a, 100)
-
- tm100b := martiantest.NewModifier()
- tm100b.RequestFunc(func(*http.Request) {
- order = append(order, "tm100b")
- })
- pg.AddRequestModifier(tm100b, 100)
-
- tm75 := martiantest.NewModifier()
- tm75.RequestFunc(func(*http.Request) {
- order = append(order, "tm75")
- })
-
- if err := pg.RemoveRequestModifier(tm75); err != ErrModifierNotFound {
- t.Fatalf("RemoveRequestModifier(): got %v, want ErrModifierNotFound", err)
- }
-
- pg.AddRequestModifier(tm75, 100)
-
- if err := pg.RemoveRequestModifier(tm75); err != nil {
- t.Fatalf("RemoveRequestModifier(): got %v, want no error", err)
- }
-
- req, err := http.NewRequest("GET", "http://example.com/", nil)
- if err != nil {
- t.Fatalf("http.NewRequest(): got %v, want no error", err)
- }
- if err := pg.ModifyRequest(req); err != nil {
- t.Fatalf("ModifyRequest(): got %v, want no error", err)
- }
- if got, want := order, []string{"tm100b", "tm100a", "tm50"}; !reflect.DeepEqual(got, want) {
- t.Fatalf("reflect.DeepEqual(%v, %v): got false, want true", got, want)
- }
- }
-
- func TestPriorityGroupModifyRequestHaltsOnError(t *testing.T) {
- pg := NewGroup()
-
- reqerr := errors.New("request error")
- tm := martiantest.NewModifier()
- tm.RequestError(reqerr)
-
- pg.AddRequestModifier(tm, 100)
-
- tm2 := martiantest.NewModifier()
- pg.AddRequestModifier(tm2, 75)
-
- req, err := http.NewRequest("GET", "http://example.com/", nil)
- if err != nil {
- t.Fatalf("http.NewRequest(): got %v, want no error", err)
- }
- if err := pg.ModifyRequest(req); err != reqerr {
- t.Fatalf("ModifyRequest(): got %v, want %v", err, reqerr)
- }
-
- if tm2.RequestModified() {
- t.Error("tm2.RequestModified(): got true, want false")
- }
- }
-
- func TestPriorityGroupModifyResponse(t *testing.T) {
- var order []string
-
- pg := NewGroup()
-
- tm50 := martiantest.NewModifier()
- tm50.ResponseFunc(func(*http.Response) {
- order = append(order, "tm50")
- })
- pg.AddResponseModifier(tm50, 50)
-
- tm100a := martiantest.NewModifier()
- tm100a.ResponseFunc(func(*http.Response) {
- order = append(order, "tm100a")
- })
- pg.AddResponseModifier(tm100a, 100)
-
- tm100b := martiantest.NewModifier()
- tm100b.ResponseFunc(func(*http.Response) {
- order = append(order, "tm100b")
- })
- pg.AddResponseModifier(tm100b, 100)
-
- tm75 := martiantest.NewModifier()
- tm75.ResponseFunc(func(*http.Response) {
- order = append(order, "tm75")
- })
-
- if err := pg.RemoveResponseModifier(tm75); err != ErrModifierNotFound {
- t.Fatalf("RemoveResponseModifier(): got %v, want ErrModifierNotFound", err)
- }
-
- pg.AddResponseModifier(tm75, 100)
-
- if err := pg.RemoveResponseModifier(tm75); err != nil {
- t.Fatalf("RemoveResponseModifier(): got %v, want no error", err)
- }
-
- res := proxyutil.NewResponse(200, nil, nil)
- if err := pg.ModifyResponse(res); err != nil {
- t.Fatalf("ModifyResponse(): got %v, want no error", err)
- }
- if got, want := order, []string{"tm100b", "tm100a", "tm50"}; !reflect.DeepEqual(got, want) {
- t.Fatalf("reflect.DeepEqual(%v, %v): got false, want true", got, want)
- }
- }
-
- func TestPriorityGroupModifyResponseHaltsOnError(t *testing.T) {
- pg := NewGroup()
-
- reserr := errors.New("response error")
- tm := martiantest.NewModifier()
- tm.ResponseError(reserr)
-
- pg.AddResponseModifier(tm, 100)
-
- tm2 := martiantest.NewModifier()
- pg.AddResponseModifier(tm2, 75)
-
- res := proxyutil.NewResponse(200, nil, nil)
- if err := pg.ModifyResponse(res); err != reserr {
- t.Fatalf("ModifyRequest(): got %v, want %v", err, reserr)
- }
-
- if tm2.ResponseModified() {
- t.Error("tm2.ResponseModified(): got true, want false")
- }
- }
-
- func TestGroupFromJSON(t *testing.T) {
- msg := []byte(`{
- "priority.Group": {
- "scope": ["request", "response"],
- "modifiers": [
- {
- "priority": 100,
- "modifier": {
- "header.Modifier": {
- "scope": ["request", "response"],
- "name": "X-Testing",
- "value": "true"
- }
- }
- },
- {
- "priority": 0,
- "modifier": {
- "header.Modifier": {
- "scope": ["request", "response"],
- "name": "Y-Testing",
- "value": "true"
- }
- }
- }
- ]
- }
- }`)
-
- r, err := parse.FromJSON(msg)
- if err != nil {
- t.Fatalf("parse.FromJSON(): got %v, want no error", err)
- }
-
- reqmod := r.RequestModifier()
- if reqmod == nil {
- t.Fatal("reqmod: got nil, want not nil")
- }
-
- req, err := http.NewRequest("GET", "http://example.com", nil)
- if err != nil {
- t.Fatalf("http.NewRequest(): got %v, want no error", err)
- }
- if err := reqmod.ModifyRequest(req); err != nil {
- t.Fatalf("ModifyRequest(): got %v, want no error", err)
- }
- if got, want := req.Header.Get("X-Testing"), "true"; got != want {
- t.Errorf("req.Header.Get(%q): got %q, want %q", "X-Testing", got, want)
- }
- if got, want := req.Header.Get("Y-Testing"), "true"; got != want {
- t.Errorf("req.Header.Get(%q): got %q, want %q", "Y-Testing", got, want)
- }
-
- resmod := r.ResponseModifier()
- if resmod == nil {
- t.Fatal("resmod: got nil, want not nil")
- }
-
- res := proxyutil.NewResponse(200, nil, req)
- if err := resmod.ModifyResponse(res); err != nil {
- t.Fatalf("ModifyResponse(): got %v, want no error", err)
- }
- if got, want := res.Header.Get("X-Testing"), "true"; got != want {
- t.Errorf("res.Header.Get(%q): got %q, want %q", "X-Testing", got, want)
- }
- if got, want := res.Header.Get("Y-Testing"), "true"; got != want {
- t.Errorf("res.Header.Get(%q): got %q, want %q", "Y-Testing", got, want)
- }
- }
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