add test

FreeSql.Tests/FreeSql.Tests/UnitTest4.cs

@@ -13,6 +13,42 @@ namespace FreeSql.Tests
 {
     public class UnitTest4
     {
+        [Fact]
+        public void SelectLambdaParameter()
+        {
+            using (var fsql = new FreeSql.FreeSqlBuilder()
+                .UseConnectionString(FreeSql.DataType.SqlServer, "Data Source=.;Integrated Security=True;Initial Catalog=freesqlTest;Pooling=true;min pool size=1;Max Pool Size=51")
+                .UseAutoSyncStructure(true)
+                .UseGenerateCommandParameterWithLambda(true)
+                .UseMonitorCommand(
+                    cmd => Trace.WriteLine("\r\n线程" + Thread.CurrentThread.ManagedThreadId + ": " + cmd.CommandText) //监听SQL命令对象，在执行前
+                    //, (cmd, traceLog) => Console.WriteLine(traceLog)
+                    )
+                .Build())
+            {
+                fsql.Delete<ts_slp01>().Where("1=1").ExecuteAffrows();
+
+                var testItem = new ts_slp01();
+                var sql1 = fsql.Select<ts_slp01>().Where(a => a.name == testItem.GetTestName1()).ToSql();
+                var sql2 = fsql.Select<ts_slp01>().Where(a => a.name == testItem.GetTestName2()).ToSql();
+
+                Assert.Equal(@"SELECT a.[id], a.[name] 
+FROM [ts_slp01] a 
+WHERE (a.[name] = @exp_0)", sql1);
+                Assert.Equal(@"SELECT a.[id], a.[name] 
+FROM [ts_slp01] a 
+WHERE (a.[name]  IS  NULL)", sql2);
+            }
+        }
+        class ts_slp01
+        {
+            public Guid id { get; set; }
+            public string name { get; set; }
+
+            public string GetTestName1() => "xxx";
+            public string GetTestName2() => null;
+        }
+
         [Fact]
         public void SelectN_SubSelectN()
         {

README.md

@@ -28,7 +28,7 @@ QQ Groups：4336577(full)、**8578575(available)**、**52508226(available)**
 
 | |
 | - |
-| [基础入门](https://www.cnblogs.com/FreeSql/p/11531300.html)  \|  [Select](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2)  \|  [Update](https://github.com/2881099/FreeSql/wiki/%e4%bf%ae%e6%94%b9)  \|  [Insert](https://github.com/2881099/FreeSql/wiki/%e6%b7%bb%e5%8a%a0)  \|  [Delete](https://github.com/2881099/FreeSql/wiki/%e5%88%a0%e9%99%a4)  \|  [FAQ](https://github.com/dotnetcore/FreeSql/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98)  |
+| [新手上路](https://www.cnblogs.com/FreeSql/p/11531300.html)  \|  [Select](https://github.com/2881099/FreeSql/wiki/%e6%9f%a5%e8%af%a2)  \|  [Update](https://github.com/2881099/FreeSql/wiki/%e4%bf%ae%e6%94%b9)  \|  [Insert](https://github.com/2881099/FreeSql/wiki/%e6%b7%bb%e5%8a%a0)  \|  [Delete](https://github.com/2881099/FreeSql/wiki/%e5%88%a0%e9%99%a4)  \|  [FAQ](https://github.com/dotnetcore/FreeSql/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98)  |
 | [Expression](https://github.com/2881099/FreeSql/wiki/%e8%a1%a8%e8%be%be%e5%bc%8f%e5%87%bd%e6%95%b0)  \|  [CodeFirst](https://github.com/2881099/FreeSql/wiki/CodeFirst)  \|  [DbFirst](https://github.com/2881099/FreeSql/wiki/DbFirst)  \|  [Filters](https://github.com/2881099/FreeSql/wiki/%e8%bf%87%e6%bb%a4%e5%99%a8)  \|  [AOP](https://github.com/2881099/FreeSql/wiki/AOP)  |
 | [Repository](https://github.com/2881099/FreeSql/wiki/Repository)  \|  [UnitOfWork](https://github.com/2881099/FreeSql/wiki/%e5%b7%a5%e4%bd%9c%e5%8d%95%e5%85%83)  \|  [DbContext](https://github.com/2881099/FreeSql/wiki/DbContext)  \|  [ADO](https://github.com/2881099/FreeSql/wiki/ADO)  |
 | [Read/Write](https://github.com/2881099/FreeSql/wiki/%e8%af%bb%e5%86%99%e5%88%86%e7%a6%bb)  \|  [Splitting Table](https://github.com/2881099/FreeSql/wiki/%e5%88%86%e8%a1%a8%e5%88%86%e5%ba%93)  \|  [Hide tech](https://github.com/2881099/FreeSql/wiki/%E9%AA%9A%E6%93%8D%E4%BD%9C)  \|  [*Update Notes*](https://github.com/2881099/FreeSql/wiki/%e6%9b%b4%e6%96%b0%e6%97%a5%e5%bf%97)  |