github.com/google/martian/v3@v3.3.3/header/header_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 TestNewHeaderModifier(t *testing.T) {
    26  	mod := NewModifier("testing", "true")
    27  
    28  	req, err := http.NewRequest("GET", "/", nil)
    29  	if err != nil {
    30  		t.Fatalf("NewRequest(): got %v, want no error", err)
    31  	}
    32  
    33  	if err := mod.ModifyRequest(req); err != nil {
    34  		t.Fatalf("ModifyRequest(): got %v, want no error", err)
    35  	}
    36  	if got, want := req.Header.Get("testing"), "true"; got != want {
    37  		t.Errorf("req.Header.Get(%q): got %q, want %q", "testing", got, want)
    38  	}
    39  
    40  	res := proxyutil.NewResponse(200, nil, req)
    41  	if err := mod.ModifyResponse(res); err != nil {
    42  		t.Fatalf("ModifyResponse(): got %v, want no error", err)
    43  	}
    44  	if got, want := req.Header.Get("testing"), "true"; got != want {
    45  		t.Errorf("req.Header.Get(%q): got %q, want %q", "testing", got, want)
    46  	}
    47  }
    48  
    49  func TestModifyRequestWithHostHeader(t *testing.T) {
    50  	m := NewModifier("Host", "www.google.com")
    51  
    52  	req, err := http.NewRequest("GET", "www.example.com", nil)
    53  	if err != nil {
    54  		t.Fatalf("http.NewRequest(): got %v, want no error", err)
    55  	}
    56  
    57  	if err := m.ModifyRequest(req); err != nil {
    58  		t.Fatalf("ModifyRequest(): got %v, want no error", err)
    59  	}
    60  	if got, want := req.Host, "www.google.com"; got != want {
    61  		t.Errorf("req.Host: got %q, want %q", got, want)
    62  	}
    63  }
    64  
    65  func TestModifierFromJSON(t *testing.T) {
    66  	msg := []byte(`{
    67  	  "header.Modifier": {
    68  		  "scope": ["request", "response"],
    69  			"name": "X-Martian",
    70  			"value": "true"
    71      }
    72  	}`)
    73  
    74  	r, err := parse.FromJSON(msg)
    75  	if err != nil {
    76  		t.Fatalf("parse.FromJSON(): got %v, want no error", err)
    77  	}
    78  
    79  	req, err := http.NewRequest("GET", "http://martian.test", nil)
    80  	req.Header.Add("X-Martian", "false")
    81  	if err != nil {
    82  		t.Fatalf("http.NewRequest(): got %q, want no error", err)
    83  	}
    84  
    85  	reqmod := r.RequestModifier()
    86  
    87  	if reqmod == nil {
    88  		t.Fatalf("reqmod: got nil, want not nil")
    89  	}
    90  
    91  	if err := reqmod.ModifyRequest(req); err != nil {
    92  		t.Fatalf("reqmod.ModifyRequest(): got %v, want no error", err)
    93  	}
    94  
    95  	if got, want := req.Header.Get("X-Martian"), "true"; got != want {
    96  		t.Errorf("req.Header.Get(%q): got %q, want %q", "X-Martian", got, want)
    97  	}
    98  
    99  	resmod := r.ResponseModifier()
   100  
   101  	if resmod == nil {
   102  		t.Fatalf("resmod: got nil, want not nil")
   103  	}
   104  
   105  	res := proxyutil.NewResponse(200, nil, req)
   106  	res.Header.Add("X-Martian", "false")
   107  	if err := resmod.ModifyResponse(res); err != nil {
   108  		t.Fatalf("resmod.ModifyResponse(): got %v, want no error", err)
   109  	}
   110  
   111  	if got, want := res.Header.Get("X-Martian"), "true"; got != want {
   112  		t.Errorf("res.Header.Get(%q): got %q, want %q", "X-Martian", got, want)
   113  	}
   114  }