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// Copyright 2015 Google Inc. All rights reserved.
//
// 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 thread
import (
"encoding/hex"
"io/ioutil"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"strings"
"testing"
"github.com/google/stenographer/config"
"github.com/google/stenographer/filecache"
)
const (
baseDir = "/threadtest/"
pktDir = "/threadtest/pkt/"
idxDir = "/threadtest/idx/"
testBlockFile = "/tmp/stenographer-testdata/PKT0/dhcp"
testIndexFile = "/tmp/stenographer-testdata/IDX0/dhcp"
)
func createThreads(t *testing.T, tempDir string) []*Thread {
var tc = []config.ThreadConfig{
{tempDir + pktDir, tempDir + idxDir, 10, 10},
}
threads, err := Threads(tc, tempDir+baseDir, filecache.NewCache(10))
if err != nil {
t.Fatal(err)
}
return threads
}
func copyData(t *testing.T, tempDir string) {
dirs := [...]string{tempDir + pktDir, tempDir + idxDir}
testdata := map[string]string{
testBlockFile: tempDir + pktDir,
testIndexFile: tempDir + idxDir,
}
for _, dir := range dirs {
err := os.MkdirAll(dir, os.FileMode(0755))
if err != nil {
t.Fatal(err)
}
}
for src, dst := range testdata {
cp := exec.Command("cp", "-rf", src, dst)
if err := cp.Run(); err != nil {
t.Fatal(err)
}
}
}
func rmData(t *testing.T, tempDir string) {
os.RemoveAll(tempDir)
}
type requestTest func(
method string,
path string,
headers map[string]string,
body string,
) *httptest.ResponseRecorder
func newRequestTest(t *testing.T, handle http.Handler) requestTest {
return func(
method string,
path string,
headers map[string]string,
body string,
) *httptest.ResponseRecorder {
req, err := http.NewRequest(
method,
path,
strings.NewReader(body),
)
if err != nil {
t.Errorf("%v", err)
}
for key, value := range headers {
req.Header.Set(key, value)
}
w := httptest.NewRecorder()
handle.ServeHTTP(w, req)
return w
}
}
func TestExportDebugHandlers(t *testing.T) {
if os.Getenv("DH_GOPKG") != "" {
t.Skip("skipping test; within Debian package build")
}
tempDir, err := ioutil.TempDir("", "")
if err != nil {
t.Fatal(err)
}
copyData(t, tempDir)
defer rmData(t, tempDir)
m := http.DefaultServeMux
threads := createThreads(t, tempDir)
if threadLen := len(threads); threadLen != 1 {
t.Errorf("wrong number of threads: want: %v\ngot: %v\n", 1, threadLen)
}
threads[0].SyncFiles()
threads[0].ExportDebugHandlers(m)
r := newRequestTest(t, m)
var httpTests = []struct {
method string
url string
header map[string]string
body string
code int
byteLen int
out string
}{
{
"GET",
"/debug/t0/index?name=dhcp&start=00&finish=FF",
map[string]string{"Content-Type": "text/plain"},
"",
200,
141,
"00\n0111\n013a\n020043\n020044\n0400000000\n04c0a80001\n04c0a8000a\n04ffffffff\n06fe800000000000003070b6fffe116f27\n06ff020000000000000000000000000002\n",
},
{
"GET",
"/debug/t0/packets?name=dhcp",
map[string]string{"Content-Type": "application/octet-stream"},
"",
200,
1572,
"d4c3b2a10200040000000000000000000000010001000000eb00dc5452d90a004600000046000000",
},
{
"GET",
"/debug/t0/positions?name=dhcp",
map[string]string{"Content-Type": "text/plain"},
"port 67",
200,
51,
"POSITIONS:\n\t00100030\n\t001001c0\n\t00100368\n\t001004f8\n",
},
}
for _, test := range httpTests {
got := r(test.method, test.url, test.header, test.body)
if got.Code != test.code {
t.Errorf("http request failed. want: %v\ngot: %v\n", test.code, got.Code)
}
if test.header["Content-Type"] == "text/plain" {
if got.Body.String() != test.out {
t.Errorf("body mismatch. want: %v\ngot: %v\n", test.out, got.Body.String())
}
}
if test.header["Content-Type"] == "application/octet-stream" {
out := hex.EncodeToString(got.Body.Bytes())
if !strings.Contains(out, test.out) {
t.Errorf("body mismatch. want: %v in\ngot: %v\n", test.out, out)
}
}
byteLen := got.Body.Len()
if byteLen != test.byteLen {
t.Errorf("wrong number of bytes. want: %v\ngot: %v\n", test.byteLen, byteLen)
}
}
}
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