public void ISet()
{
JsonSerializerOptions options = new JsonSerializerOptions();
options.SetupExtensions();
const string json = @"{""Collection"":[12,13]}";
ObjectWithISet obj = JsonSerializer.Deserialize <ObjectWithISet>(json, options);
Assert.NotNull(obj);
Assert.NotNull(obj.Collection);
Assert.IsType <HashSet <int> >(obj.Collection);
Assert.Equal(2, obj.Collection.Count);
Assert.Equal(12, obj.Collection.ElementAt(0));
Assert.Equal(13, obj.Collection.ElementAt(1));
string actual = JsonSerializer.Serialize(obj, obj.GetType(), options);
Assert.Equal(json, actual);
}
