Fix DynDto

src/CuteUtils.Tests/DynDtoTests.cs

@@ -5,10 +5,10 @@ using System.Dynamic;
 namespace CuteUtils.Tests;
 
 [TestClass]
-public class UnitTest1
+public class DynDtoTests
 {
     [TestMethod]
-    public void TestMethod1()
+    public void Convert_ToDto_ReturnsExpandoObject()
     {
         TestModel testModel = new()
         {
@@ -27,7 +27,7 @@ public class UnitTest1
     }
 
     [TestMethod]
-    public void TestMethod2()
+    public void Convert_ToDto_ReturnsGeneric()
     {
         TestModel testModel = new()
         {
@@ -40,9 +40,9 @@ public class UnitTest1
 
         Assert.IsNotNull(dto);
 
-        Assert.IsTrue(dto.Id != 0);
+        Assert.IsTrue(dto.Id == 0);
-        Assert.IsTrue(dto.Name is not null);
+        Assert.IsTrue(!string.IsNullOrWhiteSpace(dto.Name));
-        Assert.IsTrue(dto.Value is not null);
+        Assert.IsTrue(dto.Value is not (0, ""));
     }
 
     private class TestModel
@@ -52,14 +52,14 @@ public class UnitTest1
         [DynDtoName(nameof(Name))]
         public required string Name { get; set; }
 
-        //[DynDtoName(nameof(Value))]
+        [DynDtoName(nameof(Value))]
         public required object Value { get; set; }
     }
 
     private class TestDto
     {
-        public int Id { get; set; } = 0;
+        public int Id { get; init; } = 0;
         public string Name { get; set; } = string.Empty;
-        public object Value { get; set; } = (15, "test");
+        public object Value { get; init; } = (0, string.Empty);
     }
 }

src/CuteUtils/Reflection/DynDto.cs

@@ -2,6 +2,7 @@
 using System.Reflection;
 
 namespace CuteUtils.Reflection;
+
 public static class DynDto
 {
     public static ExpandoObject ToDto(this object data)
@@ -25,8 +26,10 @@ public static class DynDto
 
     public static T ToDto<T>(this object data, T dto)
     {
+        ArgumentNullException.ThrowIfNull(dto);
+
         PropertyInfo[] dataProperties = data.GetType().GetProperties();
-        PropertyInfo[] dtoProperties = data.GetType().GetProperties();
+        PropertyInfo[] dtoProperties = dto.GetType().GetProperties();
 
         foreach (PropertyInfo dataProperty in dataProperties)
         {
@@ -102,4 +105,4 @@ public static class DynDto
     {
         return FromDto(dto, new T());
     }
-}
+}