public void SerializeInterfaceTest()
{
IUnionSample foo = new FooClass {
XYZ = 9999
};
var bytes = JsonSerializer.Serialize(foo); // IUnionSample
Assert.Throws <InvalidOperationException>(() => JsonSerializer.Deserialize <IUnionSample>(bytes));
var newFoo = JsonSerializer.Deserialize <FooClass>(bytes);
Assert.NotNull(newFoo);
Assert.IsType <FooClass>(newFoo);
// 已出错，XYZ按正常逻辑应为9999
Assert.Equal(0, newFoo.XYZ);
bytes = Utf8JsonMessageFormatter.DefaultInstance.Serialize(foo);
newFoo = Utf8JsonMessageFormatter.DefaultInstance.Deserialize <FooClass>(bytes);
Assert.Equal(9999, newFoo.XYZ);
bytes = Utf8JsonMessageFormatter.DefaultInstance.SerializeObject(foo);
newFoo = (FooClass)Utf8JsonMessageFormatter.DefaultInstance.Deserialize(typeof(FooClass), bytes);
Assert.Equal(9999, newFoo.XYZ);
newFoo = (FooClass)Utf8JsonMessageFormatter.DefaultInstance.Deserialize <IUnionSample>(typeof(FooClass), bytes);
Assert.Equal(9999, newFoo.XYZ);
Assert.Throws <InvalidOperationException>(() => Utf8JsonStandardResolver.Register(ImmutableCollectionResolver.Instance));
}
static Utf8JsonTests()
{
Utf8JsonStandardResolver.TryRegister(ImmutableCollectionResolver.Instance);
}
