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integration_test.go
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integration_test.go
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// +build integration
/*
* Copyright (c) 2015, Salesforce.com, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the distribution.
*
* * Neither the name of Salesforce.com nor the names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package rmux
import (
"bytes"
"net"
"strings"
"testing"
"time"
"strconv"
"io"
)
type tRmux struct {
t *testing.T
s *RedisMultiplexer
}
var (
redisSock string = "/tmp/redis-test.sock"
rmuxSock string = "/tmp/rmux-test.sock"
)
func StartRmux(t *testing.T, servers int) (r *tRmux) {
r = &tRmux{}
r.t = t
// start rmux
rs, err := NewRedisMultiplexer("unix", rmuxSock, 2)
if err != nil {
r.t.Fatalf("Error when creating new redis multiplexer: %s", err)
}
rs.SetAllTimeouts(2000 * time.Millisecond)
r.s = rs
for i := 0; i < servers; i++ {
r.s.AddConnection("unix", redisSock)
}
if r.s.countActiveConnections() != servers {
r.t.Errorf("Not as many connections are active as expected.")
}
go r.s.Start()
return
}
func (r *tRmux) Cleanup() {
r.s.active = false
r.s.Listener.Close()
}
func TestStartRmux(t *testing.T) {
r := StartRmux(t, 1)
defer r.Cleanup()
}
func flushRedis(t *testing.T) {
s, err := net.Dial("unix", redisSock)
if err != nil {
t.Fatalf("Error when dialing to redis for flush: %s", err)
}
defer s.Close()
s.Write([]byte("flushall\r\n"))
b := make([]byte, 2048)
n, err := s.Read(b)
if err != nil {
t.Fatalf("Failed to read on flushall: %s", err)
}
if !bytes.Equal(b[:n], []byte("+OK\r\n")) {
t.Fatalf("Expected OK response, got %q", b[:n])
}
}
func checkResponse(t *testing.T, in string, expected string) {
var err error
flushRedis(t)
r := StartRmux(t, 1)
defer r.Cleanup()
sock, err := net.Dial("unix", rmuxSock)
if err != nil {
t.Fatalf("Error dialing rmux socket: %s", err)
}
defer sock.Close()
_, err = sock.Write([]byte(in))
if err != nil {
t.Fatalf("Error writing command: %s", err)
}
b := new(bytes.Buffer)
for b.Len() < len(expected) {
buf := make([]byte, 8*1024)
sock.SetDeadline(time.Now().Add(1000 * time.Millisecond))
n, err := sock.Read(buf)
if err == io.EOF {
break
} else if err != nil {
t.Fatalf("Error reading from sock: %s", err)
}
b.Write(buf[:n])
}
if read := b.Next(len(expected)); bytes.Compare(read, []byte(expected)) != 0 {
t.Errorf("Did not read the expected response.\r\nExpected %q\r\nGot %q\r\n", expected, read)
}
}
func checkMuxResponse(t *testing.T, in string, expected string) {
var err error
flushRedis(t)
r := StartRmux(t, 2)
defer r.Cleanup()
sock, err := net.Dial("unix", rmuxSock)
if err != nil {
t.Fatalf("Error dialing rmux socket: %s", err)
}
defer sock.Close()
_, err = sock.Write([]byte(in))
if err != nil {
t.Fatalf("Error writing command: %s", err)
}
b := new(bytes.Buffer)
for b.Len() < len(expected) {
buf := make([]byte, 8*1024)
sock.SetDeadline(time.Now().Add(1000 * time.Millisecond))
n, err := sock.Read(buf)
if err == io.EOF {
break
} else if err != nil {
t.Fatalf("Error reading from sock: %s", err)
}
b.Write(buf[:n])
}
if read := b.Next(len(expected)); bytes.Compare(read, []byte(expected)) != 0 {
t.Errorf("Did not read the expected response.\r\nGot %q\r\n", read)
}
}
// given a simple command, construct a multi-bulk command
func makeCommand(str string) string {
splits := strings.Split(str, " ")
cmd := "*" + strconv.Itoa(len(splits)) + "\r\n"
for _, s := range splits {
cmd = cmd + "$" + strconv.Itoa(len(s)) + "\r\n" + s + "\r\n"
}
return cmd
}
func TestResponse(t *testing.T) {
cmd := "+PING\r\n"
expected := "+PONG\r\n"
checkResponse(t, cmd, expected)
}
func TestLargeResponse(t *testing.T) {
cmd := "*3\r\n$4\r\nEVAL\r\n$47\r\nreturn cjson.encode(string.rep('a', 65 * 1024))\r\n$1\r\n0\r\n"
expected := "$66562\r\n\"" + strings.Repeat("a", 66560) + "\"\r\n"
checkResponse(t, cmd, expected)
}
func TestPipelineResponse(t *testing.T) {
cmd := makeCommand("get key1") + makeCommand("set key1 test") + makeCommand("get key1")
expected := "$-1\r\n+OK\r\n$4\r\ntest\r\n"
checkResponse(t, cmd, expected)
}
func TestPipelineImmediateResponse(t *testing.T) {
cmd := makeCommand("get key1") + makeCommand("set key1 test") + makeCommand("PING") + makeCommand("get key1")
expected := "$-1\r\n+OK\r\n+PONG\r\n$4\r\ntest\r\n"
checkResponse(t, cmd, expected)
}
func TestMuxPipelineResponse(t *testing.T) {
cmd := makeCommand("get key1") + makeCommand("set key1 test") + makeCommand("get key1")
expected := "$-1\r\n+OK\r\n$4\r\ntest\r\n"
checkMuxResponse(t, cmd, expected)
}
func TestLargeResponseWithValidation(t *testing.T) {
script := "local str = \"\"\r\nfor i=1,4000 do\r\nstr = str .. i .. \" \"\r\nend\r\nreturn str\r\n"
cmd := "*3\r\n$4\r\nEVAL\r\n$" + strconv.Itoa(len(script)) + "\r\n" + script + "\r\n$1\r\n0\r\n"
// construct the expected string
expected := ""
for i := 1; i <= 4000; i++ {
expected = expected + strconv.Itoa(i) + " "
}
expectedResp := "$" + strconv.Itoa(len(expected)) + "\r\n" + expected + "\r\n"
checkResponse(t, cmd, expectedResp)
}
func TestLargeRequest(t *testing.T) {
// The data to set: 26 bytes * 3000 = 78000 bytes
setData := strings.Repeat("abcdefghijklmnopqrstuvwxyz", 3000);
cmd := makeCommand("set somekey " + setData)
expected := "+OK\r\n"
checkResponse(t, cmd, expected)
}