public static void ExtensionPropertyAsObject()
{
string json = @"{""MyIntMissing"":2}";
ClassWithExtensionPropertyAsObject obj = JsonSerializer.Deserialize <ClassWithExtensionPropertyAsObject>(json);
Assert.IsType <JsonElement>(obj.MyOverflow["MyIntMissing"]);
Assert.Equal(2, ((JsonElement)obj.MyOverflow["MyIntMissing"]).GetInt32());
}
public static void ExtensionPropertyObjectValue_SameAsExtensionPropertyName()
{
const string json = @"{""MyOverflow"":{""Key1"":""V""}}";
// Deserializing directly into the overflow is not supported by design.
ClassWithExtensionPropertyAsObject obj = JsonSerializer.Deserialize <ClassWithExtensionPropertyAsObject>(json);
// The JSON is treated as normal overflow.
Assert.NotNull(obj.MyOverflow["MyOverflow"]);
Assert.Equal(json, JsonSerializer.Serialize(obj));
}
public static void CustomObjectConverterInExtensionProperty()
{
const string Json = "{\"hello\": \"world\"}";
var options = new JsonSerializerOptions();
options.Converters.Add(new JsonObjectConverter());
ClassWithExtensionPropertyAsObject obj = JsonSerializer.Deserialize <ClassWithExtensionPropertyAsObject>(Json, options);
object overflowProp = obj.MyOverflow["hello"];
Assert.IsType <string>(overflowProp);
Assert.Equal("world!!!", ((string)overflowProp));
string newJson = JsonSerializer.Serialize(obj, options);
Assert.Equal("{\"hello\":\"world!!!\"}", newJson);
}
public static void NullAsNullObjectOrJsonValueKindNull()
{
const string json = @"{""MissingProperty"":null}";
{
ClassWithExtensionPropertyAsObject obj = JsonSerializer.Deserialize <ClassWithExtensionPropertyAsObject>(json);
// A null value maps to <object>, so the value is null.
object elem = obj.MyOverflow["MissingProperty"];
Assert.Null(elem);
}
{
ClassWithExtensionPropertyAsJsonElement obj = JsonSerializer.Deserialize <ClassWithExtensionPropertyAsJsonElement>(json);
// Since JsonElement is a struct, it treats null as JsonValueKind.Null.
object elem = obj.MyOverflow["MissingProperty"];
Assert.IsType <JsonElement>(elem);
Assert.Equal(JsonValueKind.Null, ((JsonElement)elem).ValueKind);
}
}
