timeout_transport_test.go

Documentation: go.etcd.io/etcd/client/pkg/v3/transport

     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 transport
    16  
    17  import (
    18  	"bytes"
    19  	"io/ioutil"
    20  	"net/http"
    21  	"net/http/httptest"
    22  	"testing"
    23  	"time"
    24  )
    25  
    26  // TestNewTimeoutTransport tests that NewTimeoutTransport returns a transport
    27  // that can dial out timeout connections.
    28  func TestNewTimeoutTransport(t *testing.T) {
    29  	tr, err := NewTimeoutTransport(TLSInfo{}, time.Hour, time.Hour, time.Hour)
    30  	if err != nil {
    31  		t.Fatalf("unexpected NewTimeoutTransport error: %v", err)
    32  	}
    33  
    34  	remoteAddr := func(w http.ResponseWriter, r *http.Request) {
    35  		w.Write([]byte(r.RemoteAddr))
    36  	}
    37  	srv := httptest.NewServer(http.HandlerFunc(remoteAddr))
    38  
    39  	defer srv.Close()
    40  	conn, err := tr.Dial("tcp", srv.Listener.Addr().String())
    41  	if err != nil {
    42  		t.Fatalf("unexpected dial error: %v", err)
    43  	}
    44  	defer conn.Close()
    45  
    46  	tconn, ok := conn.(*timeoutConn)
    47  	if !ok {
    48  		t.Fatalf("failed to dial out *timeoutConn")
    49  	}
    50  	if tconn.readTimeout != time.Hour {
    51  		t.Errorf("read timeout = %s, want %s", tconn.readTimeout, time.Hour)
    52  	}
    53  	if tconn.writeTimeout != time.Hour {
    54  		t.Errorf("write timeout = %s, want %s", tconn.writeTimeout, time.Hour)
    55  	}
    56  
    57  	// ensure not reuse timeout connection
    58  	req, err := http.NewRequest("GET", srv.URL, nil)
    59  	if err != nil {
    60  		t.Fatalf("unexpected err %v", err)
    61  	}
    62  	resp, err := tr.RoundTrip(req)
    63  	if err != nil {
    64  		t.Fatalf("unexpected err %v", err)
    65  	}
    66  	addr0, err := ioutil.ReadAll(resp.Body)
    67  	resp.Body.Close()
    68  	if err != nil {
    69  		t.Fatalf("unexpected err %v", err)
    70  	}
    71  
    72  	resp, err = tr.RoundTrip(req)
    73  	if err != nil {
    74  		t.Fatalf("unexpected err %v", err)
    75  	}
    76  	addr1, err := ioutil.ReadAll(resp.Body)
    77  	resp.Body.Close()
    78  	if err != nil {
    79  		t.Fatalf("unexpected err %v", err)
    80  	}
    81  
    82  	if bytes.Equal(addr0, addr1) {
    83  		t.Errorf("addr0 = %s addr1= %s, want not equal", string(addr0), string(addr1))
    84  	}
    85  }
    86
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