github.com/google/martian/v3@v3.3.3/header/copy_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 TestCopyModifier(t *testing.T) {
    26  	m := NewCopyModifier("Original", "Copy")
    27  
    28  	req, err := http.NewRequest("GET", "http://example.com", nil)
    29  	if err != nil {
    30  		t.Fatalf("http.NewRequest(): got %v, want no error", err)
    31  	}
    32  	req.Header.Set("Original", "test")
    33  
    34  	if err := m.ModifyRequest(req); err != nil {
    35  		t.Fatalf("ModifyRequest(): got %v, want no error", err)
    36  	}
    37  
    38  	if got, want := req.Header.Get("Copy"), "test"; got != want {
    39  		t.Errorf("req.Header.Get(%q): got %q, want %q", "Copy", got, want)
    40  	}
    41  
    42  	res := proxyutil.NewResponse(200, nil, req)
    43  	res.Header.Set("Original", "test")
    44  
    45  	if err := m.ModifyResponse(res); err != nil {
    46  		t.Fatalf("ModifyResponse(): got %v, want no error", err)
    47  	}
    48  
    49  	if got, want := res.Header.Get("Copy"), "test"; got != want {
    50  		t.Errorf("res.Header.Get(%q): got %q, want %q", "Copy", got, want)
    51  	}
    52  }
    53  
    54  func TestCopyModifierFromJSON(t *testing.T) {
    55  	msg := []byte(`{
    56  	  "header.Copy": {
    57  			"from": "Original",
    58  			"to": "Copy",
    59  			"scope": ["request", "response"]
    60      }
    61  	}`)
    62  
    63  	r, err := parse.FromJSON(msg)
    64  	if err != nil {
    65  		t.Fatalf("parse.FromJSON(): got %v, want no error", err)
    66  	}
    67  
    68  	req, err := http.NewRequest("GET", "http://example.com", nil)
    69  	if err != nil {
    70  		t.Fatalf("http.NewRequest(): got %q, want no error", err)
    71  	}
    72  	req.Header.Set("Original", "test")
    73  
    74  	reqmod := r.RequestModifier()
    75  	if reqmod == nil {
    76  		t.Fatal("reqmod: got nil, want not nil")
    77  	}
    78  
    79  	if err := reqmod.ModifyRequest(req); err != nil {
    80  		t.Fatalf("ModifyRequest(): got %v, want no error", err)
    81  	}
    82  
    83  	if got, want := req.Header.Get("Copy"), "test"; got != want {
    84  		t.Errorf("req.Header.Get(%q): got %q, want %q", "Copy", got, want)
    85  	}
    86  
    87  	resmod := r.ResponseModifier()
    88  	if resmod == nil {
    89  		t.Fatal("resmod: got nil, want not nil")
    90  	}
    91  
    92  	res := proxyutil.NewResponse(200, nil, req)
    93  	res.Header.Set("Original", "test")
    94  
    95  	if err := resmod.ModifyResponse(res); err != nil {
    96  		t.Fatalf("ModifyResponse(): got %v, want no error", err)
    97  	}
    98  
    99  	if got, want := res.Header.Get("Copy"), "test"; got != want {
   100  		t.Errorf("res.Header.Get(%q): got %q, want %q", "Copy", got, want)
   101  	}
   102  }