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messenger_test.go
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package messenger
import (
"fmt"
"math/rand"
"net"
"net/http"
"net/http/httptest"
"sync"
"testing"
"time"
"github.com/gogo/protobuf/proto"
"github.com/mesos/mesos-go/messenger/testmessage"
"github.com/mesos/mesos-go/upid"
"github.com/stretchr/testify/assert"
"golang.org/x/net/context"
)
var (
globalWG = new(sync.WaitGroup)
)
func noopHandler(*upid.UPID, proto.Message) {
globalWG.Done()
}
func shuffleMessages(queue *[]proto.Message) {
for i := range *queue {
index := rand.Intn(i + 1)
(*queue)[i], (*queue)[index] = (*queue)[index], (*queue)[i]
}
}
func generateSmallMessages(n int) []proto.Message {
queue := make([]proto.Message, n)
for i := range queue {
queue[i] = testmessage.GenerateSmallMessage()
}
return queue
}
func generateMediumMessages(n int) []proto.Message {
queue := make([]proto.Message, n)
for i := range queue {
queue[i] = testmessage.GenerateMediumMessage()
}
return queue
}
func generateBigMessages(n int) []proto.Message {
queue := make([]proto.Message, n)
for i := range queue {
queue[i] = testmessage.GenerateBigMessage()
}
return queue
}
func generateLargeMessages(n int) []proto.Message {
queue := make([]proto.Message, n)
for i := range queue {
queue[i] = testmessage.GenerateLargeMessage()
}
return queue
}
func generateMixedMessages(n int) []proto.Message {
queue := make([]proto.Message, n*4)
for i := 0; i < n*4; i = i + 4 {
queue[i] = testmessage.GenerateSmallMessage()
queue[i+1] = testmessage.GenerateMediumMessage()
queue[i+2] = testmessage.GenerateBigMessage()
queue[i+3] = testmessage.GenerateLargeMessage()
}
shuffleMessages(&queue)
return queue
}
func installMessages(t *testing.T, m Messenger, queue *[]proto.Message, counts *[]int, done chan struct{}) {
testCounts := func(counts []int, done chan struct{}) {
for i := range counts {
if counts[i] != cap(*queue)/4 {
return
}
}
close(done)
}
hander1 := func(from *upid.UPID, pbMsg proto.Message) {
(*queue) = append(*queue, pbMsg)
(*counts)[0]++
testCounts(*counts, done)
}
hander2 := func(from *upid.UPID, pbMsg proto.Message) {
(*queue) = append(*queue, pbMsg)
(*counts)[1]++
testCounts(*counts, done)
}
hander3 := func(from *upid.UPID, pbMsg proto.Message) {
(*queue) = append(*queue, pbMsg)
(*counts)[2]++
testCounts(*counts, done)
}
hander4 := func(from *upid.UPID, pbMsg proto.Message) {
(*queue) = append(*queue, pbMsg)
(*counts)[3]++
testCounts(*counts, done)
}
assert.NoError(t, m.Install(hander1, &testmessage.SmallMessage{}))
assert.NoError(t, m.Install(hander2, &testmessage.MediumMessage{}))
assert.NoError(t, m.Install(hander3, &testmessage.BigMessage{}))
assert.NoError(t, m.Install(hander4, &testmessage.LargeMessage{}))
}
func runTestServer(b *testing.B, wg *sync.WaitGroup) *httptest.Server {
mux := http.NewServeMux()
mux.HandleFunc("/testserver/mesos.internal.SmallMessage", func(http.ResponseWriter, *http.Request) {
wg.Done()
})
mux.HandleFunc("/testserver/mesos.internal.MediumMessage", func(http.ResponseWriter, *http.Request) {
wg.Done()
})
mux.HandleFunc("/testserver/mesos.internal.BigMessage", func(http.ResponseWriter, *http.Request) {
wg.Done()
})
mux.HandleFunc("/testserver/mesos.internal.LargeMessage", func(http.ResponseWriter, *http.Request) {
wg.Done()
})
return httptest.NewServer(mux)
}
func TestMessengerFailToInstall(t *testing.T) {
m := NewHttp(upid.UPID{ID: "mesos"})
handler := func(from *upid.UPID, pbMsg proto.Message) {}
assert.NotNil(t, m)
assert.NoError(t, m.Install(handler, &testmessage.SmallMessage{}))
assert.Error(t, m.Install(handler, &testmessage.SmallMessage{}))
}
func TestMessengerFailToSend(t *testing.T) {
m := NewHttp(upid.UPID{ID: "foo", Host: "localhost"})
assert.NoError(t, m.Start())
self := m.UPID()
assert.Error(t, m.Send(context.TODO(), &self, &testmessage.SmallMessage{}))
}
func TestMessenger(t *testing.T) {
messages := generateMixedMessages(1000)
m1 := NewHttp(upid.UPID{ID: "mesos1", Host: "localhost"})
m2 := NewHttp(upid.UPID{ID: "mesos2", Host: "localhost"})
done := make(chan struct{})
counts := make([]int, 4)
msgQueue := make([]proto.Message, 0, len(messages))
installMessages(t, m2, &msgQueue, &counts, done)
assert.NoError(t, m1.Start())
assert.NoError(t, m2.Start())
upid2 := m2.UPID()
go func() {
for _, msg := range messages {
assert.NoError(t, m1.Send(context.TODO(), &upid2, msg))
}
}()
select {
case <-time.After(time.Second * 10):
t.Fatalf("Timeout")
case <-done:
}
for i := range counts {
assert.Equal(t, 1000, counts[i])
}
assert.Equal(t, messages, msgQueue)
}
func BenchmarkMessengerSendSmallMessage(b *testing.B) {
messages := generateSmallMessages(1000)
wg := new(sync.WaitGroup)
wg.Add(b.N)
srv := runTestServer(b, wg)
defer srv.Close()
upid2, err := upid.Parse(fmt.Sprintf("testserver@%s", srv.Listener.Addr().String()))
assert.NoError(b, err)
m1 := NewHttp(upid.UPID{ID: "mesos1", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), upid2, messages[i%1000])
}
wg.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendMediumMessage(b *testing.B) {
messages := generateMediumMessages(1000)
wg := new(sync.WaitGroup)
wg.Add(b.N)
srv := runTestServer(b, wg)
defer srv.Close()
upid2, err := upid.Parse(fmt.Sprintf("testserver@%s", srv.Listener.Addr().String()))
assert.NoError(b, err)
m1 := NewHttp(upid.UPID{ID: "mesos1", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), upid2, messages[i%1000])
}
wg.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendBigMessage(b *testing.B) {
messages := generateBigMessages(1000)
wg := new(sync.WaitGroup)
wg.Add(b.N)
srv := runTestServer(b, wg)
defer srv.Close()
upid2, err := upid.Parse(fmt.Sprintf("testserver@%s", srv.Listener.Addr().String()))
assert.NoError(b, err)
m1 := NewHttp(upid.UPID{ID: "mesos1", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), upid2, messages[i%1000])
}
wg.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendLargeMessage(b *testing.B) {
messages := generateLargeMessages(1000)
wg := new(sync.WaitGroup)
wg.Add(b.N)
srv := runTestServer(b, wg)
defer srv.Close()
upid2, err := upid.Parse(fmt.Sprintf("testserver@%s", srv.Listener.Addr().String()))
assert.NoError(b, err)
m1 := NewHttp(upid.UPID{ID: "mesos1", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), upid2, messages[i%1000])
}
wg.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendMixedMessage(b *testing.B) {
messages := generateMixedMessages(1000)
wg := new(sync.WaitGroup)
wg.Add(b.N)
srv := runTestServer(b, wg)
defer srv.Close()
upid2, err := upid.Parse(fmt.Sprintf("testserver@%s", srv.Listener.Addr().String()))
assert.NoError(b, err)
m1 := NewHttp(upid.UPID{ID: "mesos1", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), upid2, messages[i%1000])
}
wg.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendRecvSmallMessage(b *testing.B) {
globalWG.Add(b.N)
messages := generateSmallMessages(1000)
m1 := NewHttp(upid.UPID{ID: "foo1", Host: "localhost"})
m2 := NewHttp(upid.UPID{ID: "foo2", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
assert.NoError(b, m2.Start())
defer m2.Stop()
assert.NoError(b, m2.Install(noopHandler, &testmessage.SmallMessage{}))
upid2 := m2.UPID()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), &upid2, messages[i%1000])
}
globalWG.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendRecvMediumMessage(b *testing.B) {
globalWG.Add(b.N)
messages := generateMediumMessages(1000)
m1 := NewHttp(upid.UPID{ID: "foo1", Host: "localhost"})
m2 := NewHttp(upid.UPID{ID: "foo2", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
assert.NoError(b, m2.Start())
defer m2.Stop()
assert.NoError(b, m2.Install(noopHandler, &testmessage.MediumMessage{}))
upid2 := m2.UPID()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), &upid2, messages[i%1000])
}
globalWG.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendRecvBigMessage(b *testing.B) {
globalWG.Add(b.N)
messages := generateBigMessages(1000)
m1 := NewHttp(upid.UPID{ID: "foo1", Host: "localhost"})
m2 := NewHttp(upid.UPID{ID: "foo2", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
assert.NoError(b, m2.Start())
defer m2.Stop()
assert.NoError(b, m2.Install(noopHandler, &testmessage.BigMessage{}))
upid2 := m2.UPID()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), &upid2, messages[i%1000])
}
globalWG.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendRecvLargeMessage(b *testing.B) {
globalWG.Add(b.N)
messages := generateLargeMessages(1000)
m1 := NewHttp(upid.UPID{ID: "foo1", Host: "localhost"})
m2 := NewHttp(upid.UPID{ID: "foo2", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
assert.NoError(b, m2.Start())
defer m2.Stop()
assert.NoError(b, m2.Install(noopHandler, &testmessage.LargeMessage{}))
upid2 := m2.UPID()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), &upid2, messages[i%1000])
}
globalWG.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func BenchmarkMessengerSendRecvMixedMessage(b *testing.B) {
globalWG.Add(b.N)
messages := generateMixedMessages(1000)
m1 := NewHttp(upid.UPID{ID: "foo1", Host: "localhost"})
m2 := NewHttp(upid.UPID{ID: "foo2", Host: "localhost"})
assert.NoError(b, m1.Start())
defer m1.Stop()
assert.NoError(b, m2.Start())
defer m2.Stop()
assert.NoError(b, m2.Install(noopHandler, &testmessage.SmallMessage{}))
assert.NoError(b, m2.Install(noopHandler, &testmessage.MediumMessage{}))
assert.NoError(b, m2.Install(noopHandler, &testmessage.BigMessage{}))
assert.NoError(b, m2.Install(noopHandler, &testmessage.LargeMessage{}))
upid2 := m2.UPID()
b.ResetTimer()
for i := 0; i < b.N; i++ {
m1.Send(context.TODO(), &upid2, messages[i%1000])
}
globalWG.Wait()
b.StopTimer()
time.Sleep(2 * time.Second) // allow time for connection cleanup
}
func TestUPIDBindingAddress(t *testing.T) {
tt := []struct {
hostname string
binding net.IP
expected string
}{
{"", nil, ""},
{"", net.IPv4(1, 2, 3, 4), "1.2.3.4"},
{"", net.IPv4(0, 0, 0, 0), ""},
{"localhost", nil, "127.0.0.1"},
{"localhost", net.IPv4(5, 6, 7, 8), "5.6.7.8"},
{"localhost", net.IPv4(0, 0, 0, 0), "127.0.0.1"},
{"0.0.0.0", nil, ""},
{"7.8.9.1", nil, "7.8.9.1"},
{"7.8.9.1", net.IPv4(0, 0, 0, 0), "7.8.9.1"},
{"7.8.9.1", net.IPv4(8, 9, 1, 2), "8.9.1.2"},
}
for i, tc := range tt {
actual, err := UPIDBindingAddress(tc.hostname, tc.binding)
if err != nil && tc.expected != "" {
t.Fatalf("test case %d failed; expected %q instead of error %v", i+1, tc.expected, err)
}
if err == nil && actual != tc.expected {
t.Fatalf("test case %d failed; expected %q instead of %q", i+1, tc.expected, actual)
}
if err != nil {
t.Logf("test case %d; received expected error %v", i+1, err)
}
}
}