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// Copyright 2017 go-dockerclient authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !windows
package docker
import (
"fmt"
"io/ioutil"
"net/http"
"net/http/httptest"
"reflect"
"sort"
"sync"
"testing"
"time"
)
func TestClientDoConcurrentStress(t *testing.T) {
t.Parallel()
var reqs []*http.Request
var mu sync.Mutex
handler := http.HandlerFunc(func(_ http.ResponseWriter, r *http.Request) {
mu.Lock()
reqs = append(reqs, r)
mu.Unlock()
})
var nativeSrvs []*httptest.Server
for i := 0; i < 3; i++ {
srv, cleanup, err := newNativeServer(handler)
if err != nil {
t.Fatal(err)
}
defer cleanup()
nativeSrvs = append(nativeSrvs, srv)
}
tests := []struct {
testCase string
srv *httptest.Server
scheme string
withTimeout bool
withTLSServer bool
withTLSClient bool
}{
{testCase: "http server", srv: httptest.NewUnstartedServer(handler), scheme: "http"},
{testCase: "native server", srv: nativeSrvs[0], scheme: nativeProtocol},
{testCase: "http with timeout", srv: httptest.NewUnstartedServer(handler), scheme: "http", withTimeout: true},
{testCase: "native with timeout", srv: nativeSrvs[1], scheme: nativeProtocol, withTimeout: true},
{testCase: "http with tls", srv: httptest.NewUnstartedServer(handler), scheme: "https", withTLSServer: true, withTLSClient: true},
{testCase: "native with client-only tls", srv: nativeSrvs[2], scheme: nativeProtocol, withTLSServer: false, withTLSClient: nativeProtocol == unixProtocol}, // TLS client only works with unix protocol
}
for _, tt := range tests {
tt := tt
t.Run(tt.testCase, func(t *testing.T) {
reqs = nil
var client *Client
var err error
endpoint := tt.scheme + "://" + tt.srv.Listener.Addr().String()
if tt.withTLSServer {
tt.srv.StartTLS()
} else {
tt.srv.Start()
}
defer tt.srv.Close()
if tt.withTLSClient {
certPEMBlock, certErr := ioutil.ReadFile("testing/data/cert.pem")
if certErr != nil {
t.Fatal(certErr)
}
keyPEMBlock, certErr := ioutil.ReadFile("testing/data/key.pem")
if certErr != nil {
t.Fatal(certErr)
}
client, err = NewTLSClientFromBytes(endpoint, certPEMBlock, keyPEMBlock, nil)
} else {
client, err = NewClient(endpoint)
}
if err != nil {
t.Fatal(err)
}
if tt.withTimeout {
client.SetTimeout(time.Minute)
}
n := 50
wg := sync.WaitGroup{}
var paths []string
errsCh := make(chan error, 3*n)
waiters := make(chan CloseWaiter, n)
for i := 0; i < n; i++ {
path := fmt.Sprintf("/%05d", i)
paths = append(paths, http.MethodGet+path)
paths = append(paths, http.MethodPost+path)
paths = append(paths, "HEAD"+path)
wg.Add(1)
go func() {
defer wg.Done()
_, clientErr := client.do(http.MethodGet, path, doOptions{})
if clientErr != nil {
errsCh <- clientErr
}
clientErr = client.stream(http.MethodPost, path, streamOptions{})
if clientErr != nil {
errsCh <- clientErr
}
cw, clientErr := client.hijack("HEAD", path, hijackOptions{})
if clientErr != nil {
errsCh <- clientErr
} else {
waiters <- cw
}
}()
}
wg.Wait()
close(errsCh)
close(waiters)
for cw := range waiters {
cw.Wait()
cw.Close()
}
for err = range errsCh {
t.Error(err)
}
var reqPaths []string
for _, r := range reqs {
reqPaths = append(reqPaths, r.Method+r.URL.Path)
}
sort.Strings(paths)
sort.Strings(reqPaths)
if !reflect.DeepEqual(reqPaths, paths) {
t.Fatalf("expected server request paths to equal %v, got: %v", paths, reqPaths)
}
})
}
}
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