增加Issue1977单元测试

TODO DateTime默认值处理异常，估计是官方驱动问题

FreeSql.Tests/FreeSql.Tests.Provider.TDengine/TDengine/TDengineIssue/TDengineIssueTest.cs

@@ -0,0 +1,73 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using FreeSql.DataAnnotations;
+using Newtonsoft.Json;
+using Xunit.Abstractions;
+
+namespace FreeSql.Tests.Provider.TDengine.TDengine.TDengineIssue
+{
+    public class TDengineIssueTest
+    {
+        private IFreeSql _fsql;
+        private ITestOutputHelper _output;
+
+        public TDengineIssueTest(ITestOutputHelper output)
+        {
+            _fsql = g.tdengine;
+            _output = output;
+        }
+
+        [Fact]
+        void CodeFirst1977()
+        {
+            _fsql.CodeFirst.SyncStructure(typeof(TDengineProcessMetrics1977));
+        }
+
+
+        [Fact]
+        void SelectTest1977()
+        {
+            var data = _fsql.Select<TDengineProcessMetrics1977>()
+                .ToList();
+            _output.WriteLine(JsonConvert.SerializeObject(data));
+        }
+
+        [Fact]
+        void InsertTest1977()
+        {
+            var insertAffrows = _fsql.Insert(new TDengineProcessMetrics1977()
+                {
+                    Timestamp = DateTime.Now,
+                    HostName = "host4",
+                    StartTime = DateTime.Parse("0001/1/1 0:00:00"),
+                }
+            ).ExecuteAffrows();
+            Assert.Equal(1, insertAffrows);
+        }
+
+    }
+
+    public class TDengineProcessMetrics1977
+    {
+        /// <summary>
+        /// 数据时间戳
+        /// </summary>
+        [Column(Name = "ts")]
+        public DateTime Timestamp { get; set; }
+
+        /// <summary>
+        /// 主机名
+        /// </summary>
+        [Column(Name = "host_name")]
+        public string HostName { get; set; }
+
+        /// <summary>
+        /// 进程启动时间
+        /// </summary>
+        [Column(Name = "start_time")]
+        public DateTime? StartTime { get; set; }
+    }
+}