map to ExpandoObject

Author: lbargaoanu

src/AutoMapper/Mappers/MapperRegistry.cs

@@ -18,9 +18,9 @@ public static List<IObjectMapper> Mappers() =>
         new ConstructorMapper(),// new Destination(source)
         new ConversionOperatorMapper("op_Implicit"),// implicit operator Destination or implicit operator Source
         new ConversionOperatorMapper("op_Explicit"),// explicit operator Destination or explicit operator Source
-        new FromStringDictionaryMapper(),// property values to typed object
-        new ToStringDictionaryMapper(),// typed object to property values
         new FromDynamicMapper(),// dynamic to typed object
         new ToDynamicMapper(),// typed object to dynamic
+        new FromStringDictionaryMapper(),// property values to typed object
+        new ToStringDictionaryMapper(),// typed object to property values
     ];
 }

src/UnitTests/Mappers/DynamicMapperTests.cs

@@ -67,6 +67,18 @@ public void Should_map_source_properties()
         Assert.Equal(12, _destination.Baz);
         ((int[])_destination.Data).SequenceEqual(data).ShouldBeTrue();
     }
+    [Fact]
+    public void Should_map_to_ExpandoObject()
+    {
+        var config = new MapperConfiguration(cfg => { });
+        var data = new[] { 1, 2, 3 };
+        _destination = config.CreateMapper().Map<ExpandoObject>(new Destination { Foo = "Foo", Bar = "Bar", Data = data, Baz = 12 });
+        ((IDictionary<string, object>)_destination).Count.ShouldBe(4);
+        Assert.Equal("Foo", _destination.Foo);
+        Assert.Equal("Bar", _destination.Bar);
+        Assert.Equal(12, _destination.Baz);
+        ((int[])_destination.Data).SequenceEqual(data).ShouldBeTrue();
+    }
 }
 
 public class When_mapping_from_dynamic