public async Task AddUnique()
{
LCObject book = new LCObject("Book");
book["pages"] = new List <int> {
1, 2, 3, 4, 5
};
await book.Save();
// add
book.AddUnique("pages", 1);
await book.Save();
TestContext.WriteLine(book["pages"]);
Assert.AreEqual((book["pages"] as List <object>).Count, 5);
book.AddAllUnique("pages", new List <int> {
5, 6, 7
});
await book.Save();
TestContext.WriteLine(book["pages"]);
Assert.AreEqual((book["pages"] as List <object>).Count, 7);
}