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server_test.go
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server_test.go
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/*
* 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 (
"bufio"
"net"
"testing"
"time"
)
func StartPongResponseServer(t *testing.T, sock string) net.Listener {
listenSock, err := net.Listen("unix", sock)
if err != nil {
t.Errorf("Cannot listen on %s: %s", sock, err)
return nil
}
go func() {
for {
c, err := listenSock.Accept()
if err != nil {
break
}
rw := bufio.NewReadWriter(bufio.NewReader(c), bufio.NewWriter(c))
rw.ReadLine()
rw.Write([]byte("+PONG\r\n"))
rw.Flush()
}
}()
return listenSock
}
func StartNoResponseServer(t *testing.T, sock string) net.Listener {
listenSock, err := net.Listen("unix", sock)
if err != nil {
t.Errorf("Cannot listen on %s: %s", sock, err)
return nil
}
go func() {
for {
_, err := listenSock.Accept()
if err != nil {
break
}
// do nothing
}
}()
return listenSock
}
func TestCountActiveConnections_NoResponse(t *testing.T) {
server, err := NewRedisMultiplexer("unix", "/tmp/rmuxTest.sock", 5)
if err != nil {
t.Fatal("Cannot listen on /tmp/rmuxTest.sock: ", err)
}
defer func() {
server.active = false
server.Listener.Close()
}()
server.EndpointConnectTimeout = 10 * time.Millisecond
server.EndpointReadTimeout = 10 * time.Millisecond
server.EndpointWriteTimeout = 10 * time.Millisecond
server.AddConnection("unix", "/tmp/rmuxTest1.sock")
server.AddConnection("unix", "/tmp/rmuxTest2.sock")
server.AddConnection("unix", "/tmp/rmuxTest3.sock")
//create a non-responder on one socket
sock1 := StartNoResponseServer(t, "/tmp/rmuxTest1.sock")
if sock1 == nil {
t.Error("Cannot listen on /tmp/rmuxTest1.sock: ", err)
return
}
defer sock1.Close()
connectionCount := server.countActiveConnections()
if connectionCount != 0 {
t.Error("Server thinks there are active connections, when there should be none")
return
}
}
func TestCountActiveConnections_SomeResponses(t *testing.T) {
server, err := NewRedisMultiplexer("unix", "/tmp/rmuxTest.sock", 5)
if err != nil {
t.Fatal("Cannot listen on /tmp/rmuxTest.sock: ", err)
}
defer func() {
server.active = false
server.Listener.Close()
}()
server.EndpointConnectTimeout = 10 * time.Millisecond
server.EndpointReadTimeout = 10 * time.Millisecond
server.EndpointWriteTimeout = 10 * time.Millisecond
server.AddConnection("unix", "/tmp/rmuxTest1.sock")
server.AddConnection("unix", "/tmp/rmuxTest2.sock")
server.AddConnection("unix", "/tmp/rmuxTest3.sock")
//create a non-responder on one socket
sock1 := StartNoResponseServer(t, "/tmp/rmuxTest1.sock")
if sock1 == nil {
return
}
defer sock1.Close()
// create a pong-responder on another socket
sock2 := StartPongResponseServer(t, "/tmp/rmuxTest2.sock")
if sock2 == nil {
return
}
defer sock2.Close()
// no listener on socket 3
connectionCount := server.countActiveConnections()
if connectionCount != 1 {
t.Errorf("Server's connection count is wrong: %d instead of 1", connectionCount)
}
}
func TestCountActiveConnections_AllResponses(t *testing.T) {
server, err := NewRedisMultiplexer("unix", "/tmp/rmuxTest.sock", 5)
if err != nil {
t.Fatal("Cannot listen on /tmp/rmuxTest.sock: ", err)
}
defer func() {
server.active = false
server.Listener.Close()
}()
server.EndpointConnectTimeout = 10 * time.Millisecond
server.EndpointReadTimeout = 10 * time.Millisecond
server.EndpointWriteTimeout = 10 * time.Millisecond
server.AddConnection("unix", "/tmp/rmuxTest1.sock")
server.AddConnection("unix", "/tmp/rmuxTest2.sock")
server.AddConnection("unix", "/tmp/rmuxTest3.sock")
// create pong responders
sock1 := StartPongResponseServer(t, "/tmp/rmuxTest1.sock")
if sock1 == nil {
return
}
defer sock1.Close()
sock2 := StartPongResponseServer(t, "/tmp/rmuxTest2.sock")
if sock2 == nil {
return
}
defer sock2.Close()
sock3 := StartPongResponseServer(t, "/tmp/rmuxTest3.sock")
if sock3 == nil {
return
}
defer sock3.Close()
connectionCount := server.countActiveConnections()
if connectionCount != 3 {
t.Errorf("Server's connection count is wrong: %d instead of 1", connectionCount)
}
}