package redis_test import ( "errors" "fmt" "net" "os" "os/exec" "path/filepath" "sync" "sync/atomic" "testing" "time" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" "gopkg.in/redis.v5" ) const ( redisPort = "6380" redisAddr = ":" + redisPort redisSecondaryPort = "6381" ) const ( ringShard1Port = "6390" ringShard2Port = "6391" ) const ( sentinelName = "mymaster" sentinelMasterPort = "8123" sentinelSlave1Port = "8124" sentinelSlave2Port = "8125" sentinelPort = "8126" ) var ( redisMain *redisProcess ringShard1, ringShard2 *redisProcess sentinelMaster, sentinelSlave1, sentinelSlave2, sentinel *redisProcess ) var cluster = &clusterScenario{ ports: []string{"8220", "8221", "8222", "8223", "8224", "8225"}, nodeIds: make([]string, 6), processes: make(map[string]*redisProcess, 6), clients: make(map[string]*redis.Client, 6), } var _ = BeforeSuite(func() { var err error redisMain, err = startRedis(redisPort) Expect(err).NotTo(HaveOccurred()) ringShard1, err = startRedis(ringShard1Port) Expect(err).NotTo(HaveOccurred()) ringShard2, err = startRedis(ringShard2Port) Expect(err).NotTo(HaveOccurred()) sentinelMaster, err = startRedis(sentinelMasterPort) Expect(err).NotTo(HaveOccurred()) sentinel, err = startSentinel(sentinelPort, sentinelName, sentinelMasterPort) Expect(err).NotTo(HaveOccurred()) sentinelSlave1, err = startRedis( sentinelSlave1Port, "--slaveof", "127.0.0.1", sentinelMasterPort) Expect(err).NotTo(HaveOccurred()) sentinelSlave2, err = startRedis( sentinelSlave2Port, "--slaveof", "127.0.0.1", sentinelMasterPort) Expect(err).NotTo(HaveOccurred()) Expect(startCluster(cluster)).NotTo(HaveOccurred()) }) var _ = AfterSuite(func() { Expect(redisMain.Close()).NotTo(HaveOccurred()) Expect(ringShard1.Close()).NotTo(HaveOccurred()) Expect(ringShard2.Close()).NotTo(HaveOccurred()) Expect(sentinel.Close()).NotTo(HaveOccurred()) Expect(sentinelSlave1.Close()).NotTo(HaveOccurred()) Expect(sentinelSlave2.Close()).NotTo(HaveOccurred()) Expect(sentinelMaster.Close()).NotTo(HaveOccurred()) Expect(stopCluster(cluster)).NotTo(HaveOccurred()) }) func TestGinkgoSuite(t *testing.T) { RegisterFailHandler(Fail) RunSpecs(t, "gopkg.in/redis.v5") } //------------------------------------------------------------------------------ func redisOptions() *redis.Options { return &redis.Options{ Addr: redisAddr, DB: 15, DialTimeout: 10 * time.Second, ReadTimeout: 30 * time.Second, WriteTimeout: 30 * time.Second, PoolSize: 10, PoolTimeout: 30 * time.Second, IdleTimeout: 500 * time.Millisecond, IdleCheckFrequency: 500 * time.Millisecond, } } func redisClusterOptions() *redis.ClusterOptions { return &redis.ClusterOptions{ DialTimeout: 10 * time.Second, ReadTimeout: 30 * time.Second, WriteTimeout: 30 * time.Second, PoolSize: 10, PoolTimeout: 30 * time.Second, IdleTimeout: 500 * time.Millisecond, IdleCheckFrequency: 500 * time.Millisecond, } } func redisRingOptions() *redis.RingOptions { return &redis.RingOptions{ Addrs: map[string]string{ "ringShardOne": ":" + ringShard1Port, "ringShardTwo": ":" + ringShard2Port, }, DialTimeout: 10 * time.Second, ReadTimeout: 30 * time.Second, WriteTimeout: 30 * time.Second, PoolSize: 10, PoolTimeout: 30 * time.Second, IdleTimeout: 500 * time.Millisecond, IdleCheckFrequency: 500 * time.Millisecond, } } func perform(n int, cbs ...func(int)) { var wg sync.WaitGroup for _, cb := range cbs { for i := 0; i < n; i++ { wg.Add(1) go func(cb func(int), i int) { defer GinkgoRecover() defer wg.Done() cb(i) }(cb, i) } } wg.Wait() } func eventually(fn func() error, timeout time.Duration) error { var exit int32 errCh := make(chan error) done := make(chan struct{}) go func() { defer GinkgoRecover() for atomic.LoadInt32(&exit) == 0 { err := fn() if err == nil { close(done) return } select { case errCh <- err: default: } time.Sleep(timeout / 100) } }() select { case <-done: return nil case <-time.After(timeout): atomic.StoreInt32(&exit, 1) select { case err := <-errCh: return err default: return fmt.Errorf("timeout after %s", timeout) } } } func execCmd(name string, args ...string) (*os.Process, error) { cmd := exec.Command(name, args...) if testing.Verbose() { cmd.Stdout = os.Stdout cmd.Stderr = os.Stderr } return cmd.Process, cmd.Start() } func connectTo(port string) (*redis.Client, error) { client := redis.NewClient(&redis.Options{ Addr: ":" + port, }) err := eventually(func() error { return client.Ping().Err() }, 30*time.Second) if err != nil { return nil, err } return client, nil } type redisProcess struct { *os.Process *redis.Client } func (p *redisProcess) Close() error { if err := p.Kill(); err != nil { return err } err := eventually(func() error { if err := p.Client.Ping().Err(); err != nil { return nil } return errors.New("client is not shutdown") }, 10*time.Second) if err != nil { return err } p.Client.Close() return nil } var ( redisServerBin, _ = filepath.Abs(filepath.Join("testdata", "redis", "src", "redis-server")) redisServerConf, _ = filepath.Abs(filepath.Join("testdata", "redis.conf")) ) func redisDir(port string) (string, error) { dir, err := filepath.Abs(filepath.Join("testdata", "instances", port)) if err != nil { return "", err } if err := os.RemoveAll(dir); err != nil { return "", err } if err := os.MkdirAll(dir, 0775); err != nil { return "", err } return dir, nil } func startRedis(port string, args ...string) (*redisProcess, error) { dir, err := redisDir(port) if err != nil { return nil, err } if err = exec.Command("cp", "-f", redisServerConf, dir).Run(); err != nil { return nil, err } baseArgs := []string{filepath.Join(dir, "redis.conf"), "--port", port, "--dir", dir} process, err := execCmd(redisServerBin, append(baseArgs, args...)...) if err != nil { return nil, err } client, err := connectTo(port) if err != nil { process.Kill() return nil, err } return &redisProcess{process, client}, err } func startSentinel(port, masterName, masterPort string) (*redisProcess, error) { dir, err := redisDir(port) if err != nil { return nil, err } process, err := execCmd(redisServerBin, os.DevNull, "--sentinel", "--port", port, "--dir", dir) if err != nil { return nil, err } client, err := connectTo(port) if err != nil { process.Kill() return nil, err } for _, cmd := range []*redis.StatusCmd{ redis.NewStatusCmd("SENTINEL", "MONITOR", masterName, "127.0.0.1", masterPort, "1"), redis.NewStatusCmd("SENTINEL", "SET", masterName, "down-after-milliseconds", "500"), redis.NewStatusCmd("SENTINEL", "SET", masterName, "failover-timeout", "1000"), redis.NewStatusCmd("SENTINEL", "SET", masterName, "parallel-syncs", "1"), } { client.Process(cmd) if err := cmd.Err(); err != nil { process.Kill() return nil, err } } return &redisProcess{process, client}, nil } //------------------------------------------------------------------------------ type badConnError string func (e badConnError) Error() string { return string(e) } func (e badConnError) Timeout() bool { return false } func (e badConnError) Temporary() bool { return false } type badConn struct { net.TCPConn readDelay, writeDelay time.Duration readErr, writeErr error } var _ net.Conn = &badConn{} func (cn *badConn) Read([]byte) (int, error) { if cn.readDelay != 0 { time.Sleep(cn.readDelay) } if cn.readErr != nil { return 0, cn.readErr } return 0, badConnError("bad connection") } func (cn *badConn) Write([]byte) (int, error) { if cn.writeDelay != 0 { time.Sleep(cn.writeDelay) } if cn.writeErr != nil { return 0, cn.writeErr } return 0, badConnError("bad connection") }