public void ReturnASuccessfulResultWhenBuiltFromValue()
{
IFallible <int> actual = Fallible.FromValue(314);
Assert.That(actual.IsValue, Is.True);
Assert.That(actual.IsError, Is.False);
}
public void ReturnAnErrorResultWhenBuiltFromError()
{
IFallible <int> actual = Fallible.FromError <int>(new ArgumentException());
Assert.That(actual.IsError, Is.True);
Assert.That(actual.IsValue, Is.False);
}
public void HoldAnErrorAWhenBuiltFromError()
{
IFallible <int> actual = Fallible.FromError <int>(new ArgumentException());
Assert.That(actual.Error, Is.InstanceOf <ArgumentException>());
Assert.That(actual.Value, Is.EqualTo(default(int)));
}
public void HoldTheCorrectValueAWhenBuiltFromValue()
{
IFallible <int> actual = Fallible.FromValue(314);
Assert.That(actual.Value, Is.EqualTo(314));
Assert.That(actual.Error, Is.Null);
}
