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test cleanup

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This commit is contained in:
Song Gao 2019-03-31 16:21:00 -07:00
parent 3fe638a7bf
commit 6ad6edefb1
5 changed files with 129 additions and 124 deletions
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96
ipv4_linux_test.go
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@ -4,13 +4,14 @@ import (
"net"
"os/exec"
"testing"
"time"
"github.com/songgao/water/waterutil"
)
func startBroadcast(t *testing.T, dst net.IP) {
if err := exec.Command("ping", "-b", "-c", "4", dst.String()).Start(); err != nil {
func startPing(t *testing.T, dst net.IP, dashB bool) {
params := []string{"-c", "4", dst.String()}
if dashB {
params = append([]string{"-b"}, params...)
}
if err := exec.Command("ping", params...).Start(); err != nil {
t.Fatal(err)
}
}
@ -46,45 +47,52 @@ func TestBroadcastTAP(t *testing.T) {
}
defer teardownIfce(t, ifce)
dataCh, errCh := startRead(t, ifce)
setupIfce(t, net.IPNet{IP: self, Mask: mask}, ifce.Name())
startBroadcast(t, brd)
startPing(t, brd, true)
dataCh := make(chan []byte)
errCh := make(chan error)
startRead(t, ifce, dataCh, errCh)
timeout := time.NewTimer(8 * time.Second).C
readFrame:
for {
select {
case buffer := <-dataCh:
ethertype := waterutil.MACEthertype(buffer)
if ethertype != waterutil.IPv4 {
continue readFrame
}
if !waterutil.IsBroadcast(waterutil.MACDestination(buffer)) {
continue readFrame
}
packet := waterutil.MACPayload(buffer)
if !waterutil.IsIPv4(packet) {
continue readFrame
}
if !waterutil.IPv4Source(packet).Equal(self) {
continue readFrame
}
if !waterutil.IPv4Destination(packet).Equal(brd) {
continue readFrame
}
if waterutil.IPv4Protocol(packet) != waterutil.ICMP {
continue readFrame
}
t.Logf("received broadcast frame: %#v\n", buffer)
break readFrame
case err := <-errCh:
t.Fatalf("read error: %v", err)
case <-timeout:
t.Fatal("Waiting for broadcast packet timeout")
}
}
waitForPingOrBust(t, true, true, self, brd, dataCh, errCh)
}
func TestBroadcastTUN(t *testing.T) {
var (
self = net.IPv4(10, 0, 42, 1)
mask = net.IPv4Mask(255, 255, 255, 0)
brd = net.IPv4(10, 0, 42, 255)
)
ifce, err := New(Config{DeviceType: TUN})
if err != nil {
t.Fatalf("creating TUN error: %v\n", err)
}
defer teardownIfce(t, ifce)
dataCh, errCh := startRead(t, ifce)
setupIfce(t, net.IPNet{IP: self, Mask: mask}, ifce.Name())
startPing(t, brd, true)
waitForPingOrBust(t, false, true, self, brd, dataCh, errCh)
}
func TestUnicastTUN(t *testing.T) {
var (
self = net.IPv4(10, 0, 42, 1)
mask = net.IPv4Mask(255, 255, 255, 0)
remote = net.IPv4(10, 0, 42, 2)
)
ifce, err := New(Config{DeviceType: TUN})
if err != nil {
t.Fatalf("creating TUN error: %v\n", err)
}
defer teardownIfce(t, ifce)
dataCh, errCh := startRead(t, ifce)
setupIfce(t, net.IPNet{IP: self, Mask: mask}, ifce.Name())
startPing(t, remote, false)
waitForPingOrBust(t, false, false, self, remote, dataCh, errCh)
}