[Test]
public void SaveAndLoadRectangle()
{
    var data = BinaryDataExtensions.SaveToMemoryStream(Rectangle.One);
    byte[] savedBytes = data.ToArray();
    Assert.AreEqual(1 + 4 + "Rectangle".Length + Rectangle.SizeInBytes, savedBytes.Length);
    Assert.AreEqual("Rectangle".Length, savedBytes[0]);
    var reconstructed = data.CreateFromMemoryStream();
    Assert.AreEqual(Rectangle.One, reconstructed);
}

[Test]
public void SaveAndLoadRectangle()
{
    var data = BinaryDataExtensions.SaveToMemoryStream(Rectangle.One);
    byte[] savedBytes = data.ToArray();
    Assert.AreEqual(1 + 4 + "Rectangle".Length + Rectangle.SizeInBytes, savedBytes.Length);
    Assert.AreEqual("Rectangle".Length, savedBytes[0]);
    var reconstructed = data.CreateFromMemoryStream();
    Assert.AreEqual(Rectangle.One, reconstructed);
}

[Test]
public void SaveAndLoadRectangleManuallyWithBinaryWriterAndReader()
{
    using (var dataStream = new MemoryStream())
    {
        var writer = new BinaryWriter(dataStream);
        var data = Rectangle.One;
        BinaryDataExtensions.Save(data, writer);
        dataStream.Seek(0, SeekOrigin.Begin);
        var reader = new BinaryReader(dataStream);
        data = (Rectangle)reader.Create();
        Assert.AreEqual(Rectangle.One, data);
    }
}

[Test]
public void SaveAndLoadRectangleManuallyWithBinaryWriterAndReader()
{
    using (var dataStream = new MemoryStream())
    {
        var writer = new BinaryWriter(dataStream);
        var data = Rectangle.One;
        BinaryDataExtensions.Save(data, writer);
        dataStream.Seek(0, SeekOrigin.Begin);
        var reader = new BinaryReader(dataStream);
        data = (Rectangle)reader.Create();
        Assert.AreEqual(Rectangle.One, data);
    }
}