Add additional test cases for generic & readonly scenario

test/Misc/TestSerializerExternalModels/Models.cs

@@ -12,6 +12,16 @@ public record struct Person2ExternalStruct(int Age, string Name)
     public string StarSign { get; set; }
 }
 
+[GenerateSerializer]
+public record struct GenericPersonExternalStruct<T>(T CtorParam, string Name)
+{
+    [Id(0)]
+    public T BodyParam { get; set; }
+
+    [Id(1)]
+    public string StarSign { get; set; }
+}
+
 #if NET6_0_OR_GREATER
 [GenerateSerializer]
 public record Person2External(int Age, string Name)
@@ -22,4 +32,14 @@ public record Person2External(int Age, string Name)
     [Id(1)]
     public string StarSign { get; set; }
 }
+
+[GenerateSerializer]
+public record GenericPersonExternal<T>(T CtorParam, string Name)
+{
+    [Id(0)]
+    public T BodyParam { get; set; }
+
+    [Id(1)]
+    public string StarSign { get; set; }
+}
 #endif

test/Orleans.Serialization.UnitTests/GeneratedSerializerTests.cs

@@ -151,7 +151,6 @@ public void GeneratedLibExternalRecordStructWithPCtorSerializersRoundTripThrough
     }
 
 #if NET6_0_OR_GREATER
-
     [Fact]
     public void GeneratedLibExternalRecordWithPCtorSerializersRoundTripThroughCodec()
     {
@@ -169,6 +168,55 @@ public void GeneratedLibExternalRecordWithPCtorSerializersRoundTripThroughCodec(
         Assert.Equal(original.StarSign, result.StarSign);
     }
 
+    [Fact]
+    public void GeneratedLibExternalGenericRecordStructWithPCtorSerializersRoundTripThroughCodec()
+    {
+        var originalInner = new Person2External(2, "harry")
+        {
+            FavouriteColor = "redborine",
+            StarSign = "Aquaricorn"
+        };
+
+        var original = new GenericPersonExternalStruct<Person2External>(originalInner, "harry")
+        {
+            BodyParam = originalInner,
+            StarSign = "Aquaricorn"
+        };
+
+        var result = RoundTripThroughCodec(original);
+
+        Assert.Equal(original.CtorParam, result.CtorParam);
+        Assert.Equal(original.Name, result.Name);
+        Assert.Equal(original.BodyParam, result.BodyParam);
+        Assert.Equal(original.StarSign, result.StarSign);
+        Assert.Same(result.CtorParam, result.BodyParam);
+    }
+#endif
+
+#if NET9_0_OR_GREATER
+    [Fact]
+    public void GeneratedLibExternalGenericRecordWithPCtorSerializersRoundTripThroughCodec()
+    {
+        var originalInner = new Person2External(2, "harry")
+        {
+            FavouriteColor = "redborine",
+            StarSign = "Aquaricorn"
+        };
+
+        var original = new GenericPersonExternal<Person2External>(originalInner, "harry")
+        {
+            BodyParam = originalInner,
+            StarSign = "Aquaricorn"
+        };
+
+        var result = RoundTripThroughCodec(original);
+
+        Assert.Equal(original.CtorParam, result.CtorParam);
+        Assert.Equal(original.Name, result.Name);
+        Assert.Equal(original.BodyParam, result.BodyParam);
+        Assert.Equal(original.StarSign, result.StarSign);
+        Assert.Same(result.CtorParam, result.BodyParam);
+    }
 #endif
 
 #if NET6_0_OR_GREATER