public void Should_implicit_cast_dictionary_to_property_set()
{
var dictionary = new Dictionary <string, object>
{
{ "P1", 1 },
{ "P2", "2" },
{ "P3", null },
};
var propertySet = PropertySet.From(dictionary);
propertySet.Count.ShouldBe(3);
propertySet["P1"].ShouldBe(1);
propertySet["P2"].ShouldBe("2");
propertySet["P3"].ShouldBeNull();
}