public void Can_create_modify_and_readonly_format_info()
{
var info = new ConsoleFormatInfo();
info.IsReadOnly.Should().BeFalse();
info.SupportsAnsiCodes = true;
info.SupportsAnsiCodes.Should().BeTrue();
var readonlyInfo = ConsoleFormatInfo.ReadOnly(info);
readonlyInfo.IsReadOnly.Should().BeTrue();
Assert.Throws <InvalidOperationException>(() => readonlyInfo.SupportsAnsiCodes = false);
}
public void ReadOnly_throws_argnull()
{
Assert.Throws <ArgumentNullException>(() => ConsoleFormatInfo.ReadOnly(null));
}