av/protocol/rtp/client_test.go

126 lines
3.0 KiB
Go

/*
NAME
client_test.go
DESCRIPTION
client_test.go provides testing utilities to check RTP client functionality
provided in client.go.
AUTHOR
Saxon A. Nelson-Milton <saxon@ausocean.org>
LICENSE
This is Copyright (C) 2019 the Australian Ocean Lab (AusOcean).
It is free software: you can redistribute it and/or modify them
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.
It is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
in gpl.txt. If not, see http://www.gnu.org/licenses.
*/
package rtp
import (
"bytes"
"fmt"
"io"
"net"
"testing"
)
// TestReceive checks that the Client can correctly receive RTP packets and
// perform a specificed operation on the packets before storing in the ringBuffer.
func TestReceive(t *testing.T) {
const (
clientAddr = "localhost:8000"
packetsToSend = 20
)
testErr := make(chan error)
serverErr := make(chan error)
done := make(chan struct{})
clientReady := make(chan struct{})
var c *Client
// Start routine to read from client.
go func() {
// Create and start the client.
var err error
c, err = NewClient(clientAddr)
if err != nil {
testErr <- fmt.Errorf("could not create client, failed with error: %v\n", err)
}
close(clientReady)
// Read packets using the client and check them with expected.
var packetsReceived int
buf := make([]byte, 4096)
for packetsReceived != packetsToSend {
n, err := c.Read(buf)
switch err {
case nil:
case io.EOF:
continue
default:
testErr <- fmt.Errorf("unexpected error from c.Read: %v\n", err)
}
// Create expected data and apply operation if there is one.
expect := (&Packet{V: rtpVer, Payload: []byte{byte(packetsReceived)}}).Bytes(nil)
// Compare.
got := buf[:n]
if !bytes.Equal(got, expect) {
testErr <- fmt.Errorf("did not get expected result. \nGot: %v\n Want: %v\n", got, expect)
}
packetsReceived++
}
close(done)
}()
// Start the RTP server.
go func() {
<-clientReady
cAddr, err := net.ResolveUDPAddr("udp", clientAddr)
if err != nil {
serverErr <- fmt.Errorf("could not resolve server address, failed with err: %v\n", err)
}
conn, err := net.DialUDP("udp", nil, cAddr)
if err != nil {
serverErr <- fmt.Errorf("could not dial udp, failed with err: %v\n", err)
}
// Send packets to the client.
for i := 0; i < packetsToSend; i++ {
p := (&Packet{V: rtpVer, Payload: []byte{byte(i)}}).Bytes(nil)
_, err := conn.Write(p)
if err != nil {
serverErr <- fmt.Errorf("could not write packet to conn, failed with err: %v\n", err)
}
}
}()
<-clientReady
loop:
for {
select {
case err := <-testErr:
t.Fatal(err)
case err := <-serverErr:
t.Fatal(err)
case <-done:
break loop
default:
}
}
}