From cea3debb0267343f231a2f1179b808be2e24526d Mon Sep 17 00:00:00 2001
From: DocSvartz <svartzdoctor@gmail.com>
Date: Sat, 4 Jan 2025 19:41:14 +0500
Subject: [PATCH 1/3] Fix issue #672

---
 src/Mapster/Adapters/ClassAdapter.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Mapster/Adapters/ClassAdapter.cs b/src/Mapster/Adapters/ClassAdapter.cs
index adf1c60c..407c5a5b 100644
--- a/src/Mapster/Adapters/ClassAdapter.cs
+++ b/src/Mapster/Adapters/ClassAdapter.cs
@@ -183,7 +183,7 @@ private static Expression SetValueByReflection(MemberMapping member, MemberExpre
             var typeofExpression = Expression.Constant(member.Destination!.Type);
             var getPropertyMethod = typeof(Type).GetMethod("GetProperty", new[] { typeof(string) })!;
             var getPropertyExpression = Expression.Call(typeofExpression, getPropertyMethod,
-                Expression.Constant(member.DestinationMember.Name));
+                Expression.Constant(member.DestinationMember.Name, member.DestinationMember.Type));
             var setValueMethod =
                 typeof(PropertyInfo).GetMethod("SetValue", new[] { typeof(object), typeof(object) })!;
             var memberAsObject = adapt.To(typeof(object));

From 4deea1a08701d2741ecbf0f366196204dc33e2c9 Mon Sep 17 00:00:00 2001
From: DocSvartz <svartzdoctor@gmail.com>
Date: Sat, 4 Jan 2025 20:15:20 +0500
Subject: [PATCH 2/3] add mapping init PropertyTest

---
 src/Mapster.Tests/WhenMappingInitProperty.cs | 48 ++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/Mapster.Tests/WhenMappingInitProperty.cs

diff --git a/src/Mapster.Tests/WhenMappingInitProperty.cs b/src/Mapster.Tests/WhenMappingInitProperty.cs
new file mode 100644
index 00000000..469fb9f8
--- /dev/null
+++ b/src/Mapster.Tests/WhenMappingInitProperty.cs
@@ -0,0 +1,48 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Shouldly;
+
+namespace Mapster.Tests;
+
+[TestClass]
+public class WhenMappingInitProperty
+{
+
+    #region Tests
+    /// <summary>
+    /// From Issue #672 
+    /// https://github.com/MapsterMapper/Mapster/issues/672
+    /// </summary>
+    [TestMethod]
+    public void WhenMappingToHiddenandNewInitFieldDestination()
+    {
+        var source = new Source672() { Id = 156};
+        var c =  source.Adapt<BDestination>(); 
+        var s = source.Adapt(new BDestination());
+
+        ((ADestination)c).Id.ShouldBe(156);
+        s.Id.ShouldBe(156);
+    }
+
+    #endregion Tests
+
+
+    #region TestClasses
+
+    class Source672
+    {
+        public long Id { get; init; }
+    }
+
+    class ADestination
+    {
+        public int Id { get; init; }
+    }
+
+    class BDestination : ADestination
+    {
+        public new long Id { get; init; }
+    }
+
+
+    #endregion TestClasses
+}

From a8baff8d2a13f3ab319012b2aec1369e846a3af6 Mon Sep 17 00:00:00 2001
From: DocSvartz <svartzdoctor@gmail.com>
Date: Sat, 4 Jan 2025 20:38:01 +0500
Subject: [PATCH 3/3] add Constract Using Test

---
 src/Mapster.Tests/WhenMappingInitProperty.cs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/Mapster.Tests/WhenMappingInitProperty.cs b/src/Mapster.Tests/WhenMappingInitProperty.cs
index 469fb9f8..4fda1295 100644
--- a/src/Mapster.Tests/WhenMappingInitProperty.cs
+++ b/src/Mapster.Tests/WhenMappingInitProperty.cs
@@ -23,6 +23,21 @@ public void WhenMappingToHiddenandNewInitFieldDestination()
         s.Id.ShouldBe(156);
     }
 
+    [TestMethod]
+    public void WhenMappingToHiddenandNewInitFieldWithConstructUsing()
+    {
+        TypeAdapterConfig<Source672, BDestination>.NewConfig().ConstructUsing(_ => new BDestination());
+
+
+        var source = new Source672() { Id = 256 };
+        var c = source.Adapt<BDestination>();
+        var s = source.Adapt(new BDestination());
+
+        ((ADestination)c).Id.ShouldBe(256);
+        s.Id.ShouldBe(256);
+    }
+
+
     #endregion Tests