152 lines
3.5 KiB
Go
152 lines
3.5 KiB
Go
/*
|
|
Copyright 2014 CoreOS, Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package client
|
|
|
|
import (
|
|
"errors"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/coreos/etcd/Godeps/_workspace/src/code.google.com/p/go.net/context"
|
|
)
|
|
|
|
type fakeTransport struct {
|
|
respchan chan *http.Response
|
|
errchan chan error
|
|
startCancel chan struct{}
|
|
finishCancel chan struct{}
|
|
}
|
|
|
|
func newFakeTransport() *fakeTransport {
|
|
return &fakeTransport{
|
|
respchan: make(chan *http.Response, 1),
|
|
errchan: make(chan error, 1),
|
|
startCancel: make(chan struct{}, 1),
|
|
finishCancel: make(chan struct{}, 1),
|
|
}
|
|
}
|
|
|
|
func (t *fakeTransport) RoundTrip(*http.Request) (*http.Response, error) {
|
|
select {
|
|
case resp := <-t.respchan:
|
|
return resp, nil
|
|
case err := <-t.errchan:
|
|
return nil, err
|
|
case <-t.startCancel:
|
|
// wait on finishCancel to simulate taking some amount of
|
|
// time while calling CancelRequest
|
|
<-t.finishCancel
|
|
return nil, errors.New("cancelled")
|
|
}
|
|
}
|
|
|
|
func (t *fakeTransport) CancelRequest(*http.Request) {
|
|
t.startCancel <- struct{}{}
|
|
}
|
|
|
|
type fakeAction struct{}
|
|
|
|
func (a *fakeAction) httpRequest(url.URL) *http.Request {
|
|
return &http.Request{}
|
|
}
|
|
|
|
func TestHTTPClientDoSuccess(t *testing.T) {
|
|
tr := newFakeTransport()
|
|
c := &httpClient{transport: tr}
|
|
|
|
tr.respchan <- &http.Response{
|
|
StatusCode: http.StatusTeapot,
|
|
Body: ioutil.NopCloser(strings.NewReader("foo")),
|
|
}
|
|
|
|
resp, body, err := c.do(context.Background(), &fakeAction{})
|
|
if err != nil {
|
|
t.Fatalf("incorrect error value: want=nil got=%v", err)
|
|
}
|
|
|
|
wantCode := http.StatusTeapot
|
|
if wantCode != resp.StatusCode {
|
|
t.Fatalf("invalid response code: want=%d got=%d", wantCode, resp.StatusCode)
|
|
}
|
|
|
|
wantBody := []byte("foo")
|
|
if !reflect.DeepEqual(wantBody, body) {
|
|
t.Fatalf("invalid response body: want=%q got=%q", wantBody, body)
|
|
}
|
|
}
|
|
|
|
func TestHTTPClientDoError(t *testing.T) {
|
|
tr := newFakeTransport()
|
|
c := &httpClient{transport: tr}
|
|
|
|
tr.errchan <- errors.New("fixture")
|
|
|
|
_, _, err := c.do(context.Background(), &fakeAction{})
|
|
if err == nil {
|
|
t.Fatalf("expected non-nil error, got nil")
|
|
}
|
|
}
|
|
|
|
func TestHTTPClientDoCancelContext(t *testing.T) {
|
|
tr := newFakeTransport()
|
|
c := &httpClient{transport: tr}
|
|
|
|
tr.startCancel <- struct{}{}
|
|
tr.finishCancel <- struct{}{}
|
|
|
|
_, _, err := c.do(context.Background(), &fakeAction{})
|
|
if err == nil {
|
|
t.Fatalf("expected non-nil error, got nil")
|
|
}
|
|
}
|
|
|
|
func TestHTTPClientDoCancelContextWaitForRoundTrip(t *testing.T) {
|
|
tr := newFakeTransport()
|
|
c := &httpClient{transport: tr}
|
|
|
|
donechan := make(chan struct{})
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
go func() {
|
|
c.do(ctx, &fakeAction{})
|
|
close(donechan)
|
|
}()
|
|
|
|
// This should call CancelRequest and begin the cancellation process
|
|
cancel()
|
|
|
|
select {
|
|
case <-donechan:
|
|
t.Fatalf("httpClient.do should not have exited yet")
|
|
default:
|
|
}
|
|
|
|
tr.finishCancel <- struct{}{}
|
|
|
|
select {
|
|
case <-donechan:
|
|
//expected behavior
|
|
return
|
|
case <-time.After(time.Second):
|
|
t.Fatalf("httpClient.do did not exit within 1s")
|
|
}
|
|
}
|