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  }