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mutex_test.go
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mutex_test.go
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package redsync
import (
"github.com/go-redis/redis"
"testing"
"time"
)
func TestMutex(t *testing.T) {
redisClient := newMockRedisClient()
mutex := newTestMutex(redisClient, "test-mutex")
err := mutex.Lock()
if err != nil {
t.Fatalf("Expected err == nil, got %q", err)
}
defer mutex.Unlock()
assertAcquired(t, redisClient, mutex)
}
func TestMutexExtend(t *testing.T) {
redisClient := newMockRedisClient()
mutex := newTestMutex(redisClient, "test-mutex-extend")
err := mutex.Lock()
if err != nil {
t.Fatalf("Expected err == nil, got %q", err)
}
defer mutex.Unlock()
time.Sleep(1 * time.Second)
expiry := getPoolExpiry(redisClient, mutex.name)
ok := mutex.Extend()
if !ok {
t.Fatalf("Expected ok == true, got %v", ok)
}
expiry2 := getPoolExpiry(redisClient, mutex.name)
if expiry >= expiry2 {
t.Fatalf("Expected expiry2 > expiry, got %d %d", expiry2, expiry)
}
}
func newMockRedisClient() *redis.Client {
redisClient := redis.NewClient(&redis.Options{
Network: "unix",
Addr: server.Socket(),
IdleTimeout: 240 * time.Second,
})
if _, err := redisClient.Ping().Result(); err != nil {
panic(err)
}
return redisClient
}
func getPoolValue(redisClient *redis.Client, name string) string {
result, err := redisClient.Get(name).Result()
if err != nil {
panic(err)
}
return result
}
func getPoolExpiry(redisClient *redis.Client, name string) time.Duration {
pttl, err := redisClient.PTTL(name).Result()
if err != nil {
panic(err)
}
return pttl
}
func newTestMutex(redisClient *redis.Client, name string) *Mutex {
return &Mutex{
name: name,
expiry: 8 * time.Second,
tries: 32,
delayFunc: func(_ int) time.Duration { return 500 * time.Millisecond },
factor: 0.01,
redisClient: redisClient,
}
}
func assertAcquired(t *testing.T, redisClient *redis.Client, mutex *Mutex) {
value := getPoolValue(redisClient, mutex.name)
if value != mutex.value {
t.Fatalf("Expected value == %s, got %s", mutex.value, value)
}
}