github.com/google/martian/v3@v3.3.3/httpspec/httpspec_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 httpspec
    16  
    17  import (
    18  	"net/http"
    19  	"strings"
    20  	"testing"
    21  
    22  	"github.com/google/martian/v3"
    23  	"github.com/google/martian/v3/martiantest"
    24  	"github.com/google/martian/v3/proxyutil"
    25  )
    26  
    27  func TestNewStack(t *testing.T) {
    28  	stack, fg := NewStack("martian")
    29  
    30  	tm := martiantest.NewModifier()
    31  	fg.AddRequestModifier(tm)
    32  	fg.AddResponseModifier(tm)
    33  
    34  	req, err := http.NewRequest("GET", "http://example.com", nil)
    35  	if err != nil {
    36  		t.Fatalf("http.NewRequest(): got %v, want no error", err)
    37  	}
    38  
    39  	_, remove, err := martian.TestContext(req, nil, nil)
    40  	if err != nil {
    41  		t.Fatalf("martian.TestContext(): got %v, want no error", err)
    42  	}
    43  	defer remove()
    44  
    45  	// Hop-by-hop header to be removed.
    46  	req.Header.Set("Hop-By-Hop", "true")
    47  	req.Header.Set("Connection", "Hop-By-Hop")
    48  
    49  	req.RemoteAddr = "10.0.0.1:5000"
    50  
    51  	if err := stack.ModifyRequest(req); err != nil {
    52  		t.Fatalf("ModifyRequest(): got %v, want no error", err)
    53  	}
    54  
    55  	if got, want := req.Header.Get("Hop-By-Hop"), ""; got != want {
    56  		t.Errorf("req.Header.Get(%q): got %q, want %q", "Hop-By-Hop", got, want)
    57  	}
    58  	if got, want := req.Header.Get("X-Forwarded-For"), "10.0.0.1"; got != want {
    59  		t.Errorf("req.Header.Get(%q): got %q, want %q", "X-Forwarded-For", got, want)
    60  	}
    61  	if got, want := req.Header.Get("Via"), "1.1 martian"; !strings.HasPrefix(got, want) {
    62  		t.Errorf("req.Header.Get(%q): got %q, want %q", "Via", got, want)
    63  	}
    64  
    65  	res := proxyutil.NewResponse(200, nil, req)
    66  
    67  	// Hop-by-hop header to be removed.
    68  	res.Header.Set("Hop-By-Hop", "true")
    69  	res.Header.Set("Connection", "Hop-By-Hop")
    70  
    71  	if err := stack.ModifyResponse(res); err != nil {
    72  		t.Fatalf("ModifyResponse(): got %v, want no error", err)
    73  	}
    74  
    75  	if got, want := res.Header.Get("Hop-By-Hop"), ""; got != want {
    76  		t.Errorf("res.Header.Get(%q): got %q, want %q", "Hop-By-Hop", got, want)
    77  	}
    78  }