github.com/google/martian/v3@v3.3.3/header/header_append_modifier_test.go (about) 1 // Copyright 2015 Google Inc. All rights reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 package header 16 17 import ( 18 "net/http" 19 "testing" 20 21 "github.com/google/martian/v3/parse" 22 "github.com/google/martian/v3/proxyutil" 23 ) 24 25 func TestModifyRequestWithMultipleHeaders(t *testing.T) { 26 m := NewAppendModifier("X-Repeated", "modifier") 27 28 req, err := http.NewRequest("GET", "www.example.com", nil) 29 req.Header.Add("X-Repeated", "original") 30 if err != nil { 31 t.Fatalf("http.NewRequest(): got %v, want no error", err) 32 } 33 34 if err := m.ModifyRequest(req); err != nil { 35 t.Fatalf("ModifyRequest(): got %v, want no error", err) 36 } 37 if got, want := req.Header["X-Repeated"][0], "original"; got != want { 38 t.Errorf("req.Header[\"X-Repeated\"][0]: got %q, want %q", got, want) 39 } 40 if got, want := req.Header["X-Repeated"][1], "modifier"; got != want { 41 t.Errorf("req.Header[\"X-Repeated\"][1]: got %q, want %q", got, want) 42 } 43 } 44 45 func TestAppendModifierFromJSON(t *testing.T) { 46 msg := []byte(`{ 47 "header.Append": { 48 "scope": ["request", "response"], 49 "name": "X-Martian", 50 "value": "true" 51 } 52 }`) 53 54 r, err := parse.FromJSON(msg) 55 if err != nil { 56 t.Fatalf("parse.FromJSON(): got %v, want no error", err) 57 } 58 59 req, err := http.NewRequest("GET", "http://martian.test", nil) 60 req.Header.Add("X-Martian", "false") 61 if err != nil { 62 t.Fatalf("http.NewRequest(): got %q, want no error", err) 63 } 64 65 reqmod := r.RequestModifier() 66 67 if reqmod == nil { 68 t.Fatalf("reqmod: got nil, want not nil") 69 } 70 71 if err := reqmod.ModifyRequest(req); err != nil { 72 t.Fatalf("reqmod.ModifyRequest(): got %v, want no error", err) 73 } 74 75 if n := len(req.Header["X-Martian"]); n != 2 { 76 t.Errorf("res.Header[%q]: got len %d, want 2", "X-Martian", n) 77 } 78 79 resmod := r.ResponseModifier() 80 81 if resmod == nil { 82 t.Fatalf("resmod: got nil, want not nil") 83 } 84 85 res := proxyutil.NewResponse(200, nil, req) 86 res.Header.Add("X-Martian", "false") 87 if err := resmod.ModifyResponse(res); err != nil { 88 t.Fatalf("resmod.ModifyResponse(): got %v, want no error", err) 89 } 90 91 if n := len(res.Header["X-Martian"]); n != 2 { 92 t.Errorf("res.Header[%q]: got len %d, want 2", "X-Martian", n) 93 } 94 }