proxy_test.go

Documentation: go.etcd.io/etcd/server/v3/proxy/httpproxy

     1  // Copyright 2015 The etcd Authors
     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 httpproxy
    16  
    17  import (
    18  	"io/ioutil"
    19  	"net/http"
    20  	"net/http/httptest"
    21  	"net/url"
    22  	"testing"
    23  	"time"
    24  
    25  	"go.uber.org/zap"
    26  )
    27  
    28  func TestReadonlyHandler(t *testing.T) {
    29  	fixture := func(w http.ResponseWriter, req *http.Request) {
    30  		w.WriteHeader(http.StatusOK)
    31  	}
    32  	hdlrFunc := readonlyHandlerFunc(http.HandlerFunc(fixture))
    33  
    34  	tests := []struct {
    35  		method string
    36  		want   int
    37  	}{
    38  		// GET is only passing method
    39  		{"GET", http.StatusOK},
    40  
    41  		// everything but GET is StatusNotImplemented
    42  		{"POST", http.StatusNotImplemented},
    43  		{"PUT", http.StatusNotImplemented},
    44  		{"PATCH", http.StatusNotImplemented},
    45  		{"DELETE", http.StatusNotImplemented},
    46  		{"FOO", http.StatusNotImplemented},
    47  	}
    48  
    49  	for i, tt := range tests {
    50  		req, _ := http.NewRequest(tt.method, "http://example.com", nil)
    51  		rr := httptest.NewRecorder()
    52  		hdlrFunc(rr, req)
    53  
    54  		if tt.want != rr.Code {
    55  			t.Errorf("#%d: incorrect HTTP status code: method=%s want=%d got=%d", i, tt.method, tt.want, rr.Code)
    56  		}
    57  	}
    58  }
    59  
    60  func TestConfigHandlerGET(t *testing.T) {
    61  	var err error
    62  	us := make([]*url.URL, 3)
    63  	us[0], err = url.Parse("http://example1.com")
    64  	if err != nil {
    65  		t.Fatal(err)
    66  	}
    67  	us[1], err = url.Parse("http://example2.com")
    68  	if err != nil {
    69  		t.Fatal(err)
    70  	}
    71  	us[2], err = url.Parse("http://example3.com")
    72  	if err != nil {
    73  		t.Fatal(err)
    74  	}
    75  
    76  	lg := zap.NewExample()
    77  	rp := reverseProxy{
    78  		lg: lg,
    79  		director: &director{
    80  			lg: lg,
    81  			ep: []*endpoint{
    82  				newEndpoint(lg, *us[0], 1*time.Second),
    83  				newEndpoint(lg, *us[1], 1*time.Second),
    84  				newEndpoint(lg, *us[2], 1*time.Second),
    85  			},
    86  		},
    87  	}
    88  
    89  	req, _ := http.NewRequest("GET", "http://example.com//v2/config/local/proxy", nil)
    90  	rr := httptest.NewRecorder()
    91  	rp.configHandler(rr, req)
    92  
    93  	wbody := "{\"endpoints\":[\"http://example1.com\",\"http://example2.com\",\"http://example3.com\"]}\n"
    94  
    95  	body, err := ioutil.ReadAll(rr.Body)
    96  	if err != nil {
    97  		t.Fatal(err)
    98  	}
    99  
   100  	if string(body) != wbody {
   101  		t.Errorf("body = %s, want %s", string(body), wbody)
   102  	}
   103  }
   104
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