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// Copyright 2012-2018 The NATS Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package server
import (
"math/rand"
"net/url"
"strconv"
"sync"
"testing"
"time"
)
func TestParseSize(t *testing.T) {
if parseSize(nil) != -1 {
t.Fatal("Should error on nil byte slice")
}
n := []byte("12345678")
if pn := parseSize(n); pn != 12345678 {
t.Fatalf("Did not parse %q correctly, res=%d\n", n, pn)
}
}
func TestParseSInt64(t *testing.T) {
if parseInt64(nil) != -1 {
t.Fatal("Should error on nil byte slice")
}
n := []byte("12345678")
if pn := parseInt64(n); pn != 12345678 {
t.Fatalf("Did not parse %q correctly, res=%d\n", n, pn)
}
}
func TestParseHostPort(t *testing.T) {
check := func(hostPort string, defaultPort int, expectedHost string, expectedPort int, expectedErr bool) {
h, p, err := parseHostPort(hostPort, defaultPort)
if expectedErr {
if err == nil {
stackFatalf(t, "Expected an error, did not get one")
}
// expected error, so we are done
return
}
if !expectedErr && err != nil {
stackFatalf(t, "Unexpected error: %v", err)
}
if expectedHost != h {
stackFatalf(t, "Expected host %q, got %q", expectedHost, h)
}
if expectedPort != p {
stackFatalf(t, "Expected port %d, got %d", expectedPort, p)
}
}
check("addr:1234", 5678, "addr", 1234, false)
check(" addr:1234 ", 5678, "addr", 1234, false)
check(" addr : 1234 ", 5678, "addr", 1234, false)
check("addr", 5678, "addr", 5678, false)
check(" addr ", 5678, "addr", 5678, false)
check("addr:-1", 5678, "addr", 5678, false)
check(" addr:-1 ", 5678, "addr", 5678, false)
check(" addr : -1 ", 5678, "addr", 5678, false)
check("addr:0", 5678, "addr", 5678, false)
check(" addr:0 ", 5678, "addr", 5678, false)
check(" addr : 0 ", 5678, "addr", 5678, false)
check("addr:addr", 0, "", 0, true)
check("addr:::1234", 0, "", 0, true)
check("", 0, "", 0, true)
}
func TestURLsAreEqual(t *testing.T) {
check := func(t *testing.T, u1Str, u2Str string, expectedSame bool) {
t.Helper()
u1, err := url.Parse(u1Str)
if err != nil {
t.Fatalf("Error parsing url %q: %v", u1Str, err)
}
u2, err := url.Parse(u2Str)
if err != nil {
t.Fatalf("Error parsing url %q: %v", u2Str, err)
}
same := urlsAreEqual(u1, u2)
if expectedSame && !same {
t.Fatalf("Expected %v and %v to be the same, they were not", u1, u2)
} else if !expectedSame && same {
t.Fatalf("Expected %v and %v to be different, they were not", u1, u2)
}
}
check(t, "nats://localhost:4222", "nats://localhost:4222", true)
check(t, "nats://ivan:pwd@localhost:4222", "nats://ivan:pwd@localhost:4222", true)
check(t, "nats://ivan@localhost:4222", "nats://ivan@localhost:4222", true)
check(t, "nats://ivan:@localhost:4222", "nats://ivan:@localhost:4222", true)
check(t, "nats://host1:4222", "nats://host2:4222", false)
}
func BenchmarkParseInt(b *testing.B) {
b.SetBytes(1)
n := "12345678"
for i := 0; i < b.N; i++ {
strconv.ParseInt(n, 10, 0)
}
}
func BenchmarkParseSize(b *testing.B) {
b.SetBytes(1)
n := []byte("12345678")
for i := 0; i < b.N; i++ {
parseSize(n)
}
}
func deferUnlock(mu *sync.Mutex) {
mu.Lock()
defer mu.Unlock()
// see noDeferUnlock
if false {
return
}
}
func BenchmarkDeferMutex(b *testing.B) {
var mu sync.Mutex
b.SetBytes(1)
for i := 0; i < b.N; i++ {
deferUnlock(&mu)
}
}
func noDeferUnlock(mu *sync.Mutex) {
mu.Lock()
// prevent staticcheck warning about empty critical section
if false {
return
}
mu.Unlock()
}
func BenchmarkNoDeferMutex(b *testing.B) {
var mu sync.Mutex
b.SetBytes(1)
for i := 0; i < b.N; i++ {
noDeferUnlock(&mu)
}
}
func createTestSub() *subscription {
return &subscription{
subject: []byte("foo"),
queue: []byte("bar"),
sid: []byte("22"),
}
}
func BenchmarkArrayRand(b *testing.B) {
b.StopTimer()
r := rand.New(rand.NewSource(time.Now().UnixNano()))
// Create an array of 10 items
subs := []*subscription{}
for i := 0; i < 10; i++ {
subs = append(subs, createTestSub())
}
b.StartTimer()
for i := 0; i < b.N; i++ {
index := r.Intn(len(subs))
_ = subs[index]
}
}
func BenchmarkMapRange(b *testing.B) {
b.StopTimer()
// Create an map of 10 items
subs := map[int]*subscription{}
for i := 0; i < 10; i++ {
subs[i] = createTestSub()
}
b.StartTimer()
for i := 0; i < b.N; i++ {
for range subs {
break
}
}
}
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