// OpenTween - Client of Twitter
// Copyright (c) 2022 kim_upsilon (@kim_upsilon)
// All rights reserved.
//
// This file is part of OpenTween.
//
// This program is free software; you can redistribute it and/or modify it
// under the terms of the GNU General public License as published by the Free
// Software Foundation; either version 3 of the License, or (at your option)
// any later version.
//
// This program is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General public License
// for more details.
//
// You should have received a copy of the GNU General public License along
// with this program. If not, see , or write to
// the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
// Boston, MA 02110-1301, USA.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Moq;
using Xunit;
namespace OpenTween
{
public class DisposableLazyTest
{
[Fact]
public void Value_Test()
{
var mock = new Mock();
var obj = mock.Object;
var lazy = new DisposableLazy(() => obj);
Assert.False(lazy.IsValueCreated);
Assert.Equal(obj, lazy.Value);
Assert.True(lazy.IsValueCreated);
}
[Fact]
public void Value_DisposedErrorTest()
{
var mock = new Mock();
var obj = mock.Object;
var lazy = new DisposableLazy(() => obj);
lazy.Dispose();
Assert.Throws(() => lazy.Value);
}
[Fact]
public void Dispose_BeforeValueCreatedTest()
{
var mock = new Mock();
var lazy = new DisposableLazy(() => mock.Object);
lazy.Dispose();
Assert.False(lazy.IsValueCreated);
Assert.True(lazy.IsDisposed);
mock.Verify(x => x.Dispose(), Times.Never());
}
[Fact]
public void Dispose_AfterValueCreatedTest()
{
var mock = new Mock();
var lazy = new DisposableLazy(() => mock.Object);
_ = lazy.Value;
lazy.Dispose();
Assert.True(lazy.IsValueCreated);
Assert.True(lazy.IsDisposed);
mock.Verify(x => x.Dispose(), Times.Once());
}
}
}