diff --git a/test/Unit/FreeRedis.Tests/RedisClientTests/StreamsTests.cs b/test/Unit/FreeRedis.Tests/RedisClientTests/StreamsTests.cs
index 8fc35200..587e2c73 100644
--- a/test/Unit/FreeRedis.Tests/RedisClientTests/StreamsTests.cs
+++ b/test/Unit/FreeRedis.Tests/RedisClientTests/StreamsTests.cs
@@ -11,6 +11,54 @@ namespace FreeRedis.Tests.RedisClientTests
 {
     public class StreamsTests : TestBase
     {
+
+        [Fact]
+        public void Issues457()
+        {
+            var redis = cli;
+            var key = "key_Issues457";
+            var group = "group_Issues457";
+            var consumer = "consumer_Issues457";
+            var maxLen = 9999;
+
+            //删除，重新创建，并加入数据，进行测试
+            redis.Del(key);
+            redis.XGroupCreate(key, group, "0", true);
+            redis.XAdd(key, maxLen, "*", "__data", "my data1");
+            redis.XAdd(key, maxLen, "*", "__data", "my data2");
+
+            //检查pending表的长度
+            //!!!!!!pending表不存在时，读取会报错!!!!!!!!!
+            var pending0 = redis.XPending(key, group);
+            //消费确认前，pending 应该等于0
+            Assert.True(pending0.count == 0);
+
+            //读取未阅读的消息1,读取2次
+            var new1 = redis.XReadGroup(group, consumer, 1, 1, false, key, ">");
+            var new2 = redis.XReadGroup(group, consumer, 1, 1, false, key, ">");
+            Assert.NotNull(new1[0].entries);
+            Assert.NotEmpty(new1[0].entries);
+            Assert.NotNull(new2[0].entries);
+            Assert.NotEmpty(new2[0].entries);
+
+            //检查pending表的长度
+            var pending = redis.XPending(key, group);
+            //消费确认前，pending 应该等于2
+            Assert.True(pending.count == 2);
+
+            //消费确认
+            var id1 = new1[0].entries[0].id;
+            var id2 = new2[0].entries[0].id;
+            redis.XAck(key, group, id1);
+            redis.XAck(key, group, id2);
+
+            //检查pending表的长度
+            //!!!!!!pending表不存在时，读取会报错!!!!!!!!!
+            var pending2 = redis.XPending(key, group);
+            //消费确认后，pending 应该等于0
+            //Assert.True(pending2.count == 0);
+        }
+
         [Fact]
         public void XAck()
         {
diff --git a/test/Unit/FreeRedis.Tests/TestBase.cs b/test/Unit/FreeRedis.Tests/TestBase.cs
index ce14456a..3805c075 100644
--- a/test/Unit/FreeRedis.Tests/TestBase.cs
+++ b/test/Unit/FreeRedis.Tests/TestBase.cs
@@ -8,10 +8,10 @@ namespace FreeRedis.Tests
 {
     public class TestBase
     {
-	    protected static ConnectionStringBuilder Connection = new ConnectionStringBuilder()
-	    {
-		    Host = RedisEnvironmentHelper.GetHost("redis_single"),
-		    Password = "123456",
+		protected static ConnectionStringBuilder Connection = new ConnectionStringBuilder()
+		{
+			Host = "192.168.164.10", // RedisEnvironmentHelper.GetHost("redis_single"),
+		    //Password = "123456",
 		    Database = 1,
 		    MaxPoolSize = 10,
 		    Protocol = RedisProtocol.RESP2,