public void TestToErr()
{
Result <string, int> result = 1.ToErr();
OptionErr <int> err = result.Err();
Assert.Equal(err, Result.Err(1));
Assert.Equal(err, Option.Some(1));
}
public void Test3()
{
OptionErr <E_ERROR> err = new OptionErr <E_ERROR>();
Assert.Equal(err.IsNone, true);
Assert.Equal(Option <E_ERROR> .None, new OptionErr <E_ERROR>());
Assert.Equal(new OptionErr <E_ERROR>(), Option <E_ERROR> .None);
Assert.Equal(new OptionErr <E_ERROR>(), Option.None);
Assert.Equal(Option.None, new OptionErr <E_ERROR>());
Assert.Equal(Option.None, Option <E_ERROR> .None);
}
