public void TestImmutableKeys() { AVUser user = new AVUser(); string[] immutableKeys = new string[] { "sessionToken", "isNew" }; foreach (var key in immutableKeys) { Assert.Throws <InvalidOperationException>(() => user[key] = "1234567890" ); Assert.Throws <InvalidOperationException>(() => user.Add(key, "1234567890") ); Assert.Throws <InvalidOperationException>(() => user.AddRangeUniqueToList(key, new string[] { "1234567890" }) ); Assert.Throws <InvalidOperationException>(() => user.Remove(key) ); Assert.Throws <InvalidOperationException>(() => user.RemoveAllFromList(key, new string[] { "1234567890" }) ); } // Other special keys should be good user["username"] = "******"; user["password"] = "******"; }