func main() {
var flush = flag.Bool("flush", false, "Flush the persistent storage.")
flag.Parse()
if *flush {
cart.RemoveContents("shards/")
}
// Parse configuration.
c, err := ParseConfigFile("cmd/cartd/cart.sample.toml")
if err != nil {
fmt.Println("Failed to load configuration:", err.Error())
os.Exit(1)
}
// Create handler.
h := cart.NewHandler()
// Start HTTP server.
fmt.Println("Starting cart server on", c.Address())
// Associate a function with each query type.
http.HandleFunc("/add", h.Mod(cart.AddToSet))
http.HandleFunc("/remove", h.Mod(cart.RemoveFromSet))
http.HandleFunc("/list", h.List)
http.HandleFunc("/ping", h.Ping)
// Creates a new service goroutine for each requst.
log.Fatal(http.ListenAndServe(c.Address(), nil))
}
func TestHandler_SequentialAddRemove(t *testing.T) {
w := httptest.NewRecorder()
h := cart.NewHandler()
var slice []tuple
for i := 0; i <= NumberOfIterations; i++ {
var item uint32 = uint32(rand.Intn(2048))
var customer uint32 = uint32(rand.Intn(2048))
i := tuple{customer, item}
slice = append(slice, i)
}
for _, pair := range slice {
r := modRequest(t, "add", pair.customer, pair.item)
h.Mod(cart.AddToSet)(w, r)
if !strings.HasPrefix(w.Body.String(), "OK") {
t.Fatalf("expected `OK`, got `%s`", w.Body.String())
}
}
for _, pair := range slice {
r := modRequest(t, "remove", pair.customer, pair.item)
h.Mod(cart.RemoveFromSet)(w, r)
if !strings.HasPrefix(w.Body.String(), "OK") {
t.Fatalf("expected `OK`, got `%s`", w.Body.String())
}
}
h.Close()
cart.RemoveContents("shards/")
}
func TestHandler_Remove(t *testing.T) {
var item uint32 = 1234
var customer uint32 = 4321
r := modRequest(t, "remove", customer, item)
w := httptest.NewRecorder()
h := cart.NewHandler()
h.Mod(cart.RemoveFromSet)(w, r)
h.Close()
cart.RemoveContents("shards/")
if !strings.HasPrefix(w.Body.String(), "error:") {
t.Fatalf("expected `error:`, got `%s`", w.Body.String())
}
}
func TestHandler_Add(t *testing.T) {
var item uint32 = 1234
var customer uint32 = 4321
r := modRequest(t, "add", customer, item)
w := httptest.NewRecorder()
h := cart.NewHandler()
h.Mod(cart.AddToSet)(w, r)
h.Close()
cart.RemoveContents("shards/")
if w.Body.String() != "OK\n" {
t.Fatalf("expected `OK`, got `%s`", w.Body.String())
} else if w.Code != 200 {
t.Fatalf("expected status code 200, got %d", w.Code)
}
}
func TestHandler_ParallelAdd(t *testing.T) {
h := cart.NewHandler()
var wg sync.WaitGroup
data := make(chan map[uint32]map[uint32]uint32)
done := make(chan map[uint32]map[uint32]uint32)
go aggregator(data, done)
for i := 0; i < NumberOfThreads; i++ {
wg.Add(1)
go parallelAdd(t, h, &wg, data)
}
total := <-done
h.Close()
checkCorrectness(t, total, h)
h.Close()
cart.RemoveContents("shards/")
}