X-Git-Url: http://git.scottworley.com/reliable-chat/blobdiff_plain/ca612dcb40cb644930b74c84e55218abda34e255..d3e2abf960f9368e7d24073d8d78d58f9a09f082:/server/server_test.go

diff --git a/server/server_test.go b/server/server_test.go
index 516f62a..fb20ddc 100644
--- a/server/server_test.go
+++ b/server/server_test.go
@@ -2,32 +2,42 @@ package main
 
 import "testing"
 import "runtime"
+import "strconv"
 import "time"
 
+func expectMessage(t *testing.T, m *Message, at time.Time, id, say string) {
+	if m.Time != at {
+		t.Fail()
+	}
+	if m.ID != id {
+		t.Fail()
+	}
+	if m.Text != say {
+		t.Fail()
+	}
+}
+
 func TestMessageInsertAndRetreive(t *testing.T) {
+	id := "1"
 	say := "'Ello, Mister Polly Parrot!"
 	at := time.Now()
 	var zero_time time.Time
 	store := start_store()
-	store.Add <- &Message{at, say}
+	store.Add <- &Message{at, id, say}
 	messages_from_store := make(chan []Message, 1)
 	store.Get <- &StoreRequest{zero_time, messages_from_store}
 	messages := <-messages_from_store
 	if len(messages) != 1 {
-		t.Fail()
-	}
-	if messages[0].Time != at {
-		t.Fail()
-	}
-	if messages[0].Text != say {
-		t.Fail()
+		t.FailNow()
 	}
+	expectMessage(t, &messages[0], at, id, say)
 	close(store.Get)
 	close(store.Add)
 }
 
 func TestFetchBlocksUntilSpeak(t *testing.T) {
 	start_fetch_wait_count := fetch_wait_count.String()
+	id := "2"
 	say := "I've got a lovely fresh cuttle fish for you"
 	at := time.Now()
 	var zero_time time.Time
@@ -37,17 +47,164 @@ func TestFetchBlocksUntilSpeak(t *testing.T) {
 	for start_fetch_wait_count == fetch_wait_count.String() {
 		runtime.Gosched()
 	}
-	store.Add <- &Message{at, say}
+	store.Add <- &Message{at, id, say}
 	messages := <-messages_from_store
 	if len(messages) != 1 {
-		t.Fail()
+		t.FailNow()
 	}
-	if messages[0].Time != at {
-		t.Fail()
+	expectMessage(t, &messages[0], at, id, say)
+	close(store.Get)
+	close(store.Add)
+}
+
+func TestMultipleListeners(t *testing.T) {
+	id := "3"
+	say := "This is your nine o'clock alarm call!"
+	at := time.Now()
+	var zero_time time.Time
+	store := start_store()
+	const num_clients = 13
+	var messages_from_store [num_clients]chan []Message
+	for i := 0; i < num_clients; i++ {
+		messages_from_store[i] = make(chan []Message, 1)
+		store.Get <- &StoreRequest{zero_time, messages_from_store[i]}
 	}
-	if messages[0].Text != say {
+	store.Add <- &Message{at, id, say}
+	for i := 0; i < num_clients; i++ {
+		messages := <-messages_from_store[i]
+		if len(messages) != 1 {
+			t.FailNow()
+		}
+		expectMessage(t,& messages[0], at, id, say)
+	}
+	close(store.Get)
+	close(store.Add)
+}
+
+func parseDuration(s string) time.Duration {
+	d, err := time.ParseDuration(s)
+	if err != nil {
+		panic(err)
+	}
+	return d
+}
+
+func atoi(s string) int {
+	i, err := strconv.Atoi(s)
+	if err != nil {
+		panic(err)
+	}
+	return i
+}
+
+func TestPartialRetreive(t *testing.T) {
+	start_speak_count := atoi(speak_count.String())
+	id1 := "4"
+	id2 := "5"
+	id3 := "6"
+	say1 := "No, no.....No, 'e's stunned!"
+	say2 := "You stunned him, just as he was wakin' up!"
+	say3 := "Norwegian Blues stun easily, major."
+	base := time.Now()
+	at1 := base.Add(parseDuration("-4m"))
+	since := base.Add(parseDuration("-3m"))
+	at2 := base.Add(parseDuration("-2m"))
+	at3 := base.Add(parseDuration("-1m"))
+	store := start_store()
+	store.Add <- &Message{at1, id1, say1}
+	store.Add <- &Message{at2, id2, say2}
+	store.Add <- &Message{at3, id3, say3}
+	for atoi(speak_count.String()) != start_speak_count+3 {
+		runtime.Gosched()
+	}
+	messages_from_store := make(chan []Message, 1)
+	store.Get <- &StoreRequest{since, messages_from_store}
+	messages := <-messages_from_store
+	if len(messages) != 2 {
+		t.FailNow()
+	}
+	expectMessage(t, &messages[0], at2, id2, say2)
+	expectMessage(t, &messages[1], at3, id3, say3)
+	close(store.Get)
+	close(store.Add)
+}
+
+func TestPrecisePartialRetreive(t *testing.T) {
+	start_speak_count := atoi(speak_count.String())
+	id1 := "7"
+	id2 := "8"
+	id3 := "9"
+	say1 := "Well, he's...he's, ah...probably pining for the fjords."
+	say2 := "PININ' for the FJORDS?!?!?!?"
+	say3 := "look, why did he fall flat on his back the moment I got 'im home?"
+	base := time.Now()
+	at1 := base.Add(parseDuration("-3m"))
+	at2 := base.Add(parseDuration("-2m"))
+	at3 := base.Add(parseDuration("-1m"))
+	since := at2
+	store := start_store()
+	store.Add <- &Message{at1, id1, say1}
+	store.Add <- &Message{at2, id2, say2}
+	store.Add <- &Message{at3, id3, say3}
+	for atoi(speak_count.String()) != start_speak_count+3 {
+		runtime.Gosched()
+	}
+	messages_from_store := make(chan []Message, 1)
+	store.Get <- &StoreRequest{since, messages_from_store}
+	messages := <-messages_from_store
+	if len(messages) != 1 {
+		t.FailNow()
+	}
+	expectMessage(t, &messages[0], at3, id3, say3)
+	close(store.Get)
+	close(store.Add)
+}
+
+func TestTypicalFlow(t *testing.T) {
+	id1 := "10"
+	id2 := "11"
+	say1 := "The Norwegian Blue prefers kippin' on it's back!"
+	say2 := "Remarkable bird, innit, squire?  Lovely plumage!"
+	store := start_store()
+
+	// A waiting zero-time fetch.
+	var zero_time time.Time
+	prev_fetch_wait_count := fetch_wait_count.String()
+	fetch1 := make(chan []Message, 1)
+	store.Get <- &StoreRequest{zero_time, fetch1}
+	for prev_fetch_wait_count == fetch_wait_count.String() {
+		runtime.Gosched()
+	}
+
+	// Someone speaks.  This triggers delivery.
+	at1 := time.Now()
+	store.Add <- &Message{at1, id1, say1}
+	messages1 := <-fetch1
+	if len(messages1) != 1 {
+		t.FailNow()
+	}
+	expectMessage(t, &messages1[0], at1, id1, say1)
+
+	// Upon recipt, client blocks on fetch with since=at1
+	prev_fetch_wait_count = fetch_wait_count.String()
+	fetch2 := make(chan []Message, 1)
+	store.Get <- &StoreRequest{at1, fetch2}
+	for prev_fetch_wait_count == fetch_wait_count.String() {
+		runtime.Gosched()
+	}
+
+	// Someone speaks again.  This triggers another delivery.
+	at2 := time.Now()
+	if !at2.After(at1) {
 		t.Fail()
 	}
+	store.Add <- &Message{at2, id2, say2}
+	messages2 := <-fetch2
+	if len(messages2) != 1 {
+		t.FailNow()
+	}
+	expectMessage(t, &messages2[0], at2, id2, say2)
+
 	close(store.Get)
 	close(store.Add)
 }