feat: improve Redis Sentinel test setup and dynamic host configuration

- Add context initialization and setup for Redis cluster container in `TestRedisSentinel`
- Add defer cleanup for the Redis container
- Add retrieval and error checking for master and slave ports
- Add retrieval and error checking for host IP
- Replace hardcoded host addresses with dynamically generated master and slave names

Signed-off-by: appleboy <[email protected]>

Author: appleboy

redis_test.go

@@ -213,10 +213,28 @@ func TestRedisCluster(t *testing.T) {
 
 func TestRedisSentinel(t *testing.T) {
 	t.Helper()
+
+	ctx := context.Background()
+	redisC, _ := setupRedisCluserContainer(ctx, t)
+	defer testcontainers.CleanupContainer(t, redisC)
+
+	masterPort, err := redisC.MappedPort(ctx, "6379")
+	assert.NoError(t, err)
+
+	slavePort, err := redisC.MappedPort(ctx, "6382")
+	assert.NoError(t, err)
+
+	hostIP, err := redisC.Host(ctx)
+	assert.NoError(t, err)
+
 	m := &mockMessage{
 		Message: "foo",
 	}
-	hosts := []string{"127.0.0.1:26379", "127.0.0.1:26380"}
+
+	masterName := fmt.Sprintf("%s:%s", hostIP, masterPort.Port())
+	slaveName := fmt.Sprintf("%s:%s", hostIP, slavePort.Port())
+
+	hosts := []string{masterName, slaveName}
 
 	w := NewWorker(
 		WithAddr(strings.Join(hosts, ",")),