github.com/google/martian/v3@v3.3.3/martiantest/martiantest_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 martiantest
    16  
    17  import (
    18  	"errors"
    19  	"net/http"
    20  	"testing"
    21  
    22  	"github.com/google/martian/v3/proxyutil"
    23  )
    24  
    25  func TestModifier(t *testing.T) {
    26  	var reqrun bool
    27  	var resrun bool
    28  
    29  	moderr := errors.New("modifier error")
    30  	tm := NewModifier()
    31  	tm.RequestError(moderr)
    32  	tm.RequestFunc(func(*http.Request) {
    33  		reqrun = true
    34  	})
    35  
    36  	tm.ResponseError(moderr)
    37  	tm.ResponseFunc(func(*http.Response) {
    38  		resrun = true
    39  	})
    40  
    41  	req, err := http.NewRequest("GET", "http://example.com", nil)
    42  	if err != nil {
    43  		t.Fatalf("http.NewRequest(): got %v, want no error", err)
    44  	}
    45  
    46  	if err := tm.ModifyRequest(req); err != moderr {
    47  		t.Fatalf("tm.ModifyRequest(): got %v, want %v", err, moderr)
    48  	}
    49  	if !tm.RequestModified() {
    50  		t.Errorf("tm.RequestModified(): got false, want true")
    51  	}
    52  	if tm.RequestCount() != 1 {
    53  		t.Errorf("tm.RequestCount(): got %d, want %d", tm.RequestCount(), 1)
    54  	}
    55  	if !reqrun {
    56  		t.Error("reqrun: got false, want true")
    57  	}
    58  
    59  	res := proxyutil.NewResponse(200, nil, req)
    60  
    61  	if err := tm.ModifyResponse(res); err != moderr {
    62  		t.Fatalf("tm.ModifyResponse(): got %v, want %v", err, moderr)
    63  	}
    64  	if !tm.ResponseModified() {
    65  		t.Errorf("tm.ResponseModified(): got false, want true")
    66  	}
    67  	if tm.ResponseCount() != 1 {
    68  		t.Errorf("tm.ResponseCount(): got %d, want %d", tm.ResponseCount(), 1)
    69  	}
    70  	if !resrun {
    71  		t.Error("resrun: got false, want true")
    72  	}
    73  
    74  	tm.Reset()
    75  
    76  	if tm.RequestModified() {
    77  		t.Error("tm.RequestModified(): got true, want false")
    78  	}
    79  	if tm.ResponseModified() {
    80  		t.Error("tm.ResponseModified(): got true, want false")
    81  	}
    82  }