public void SwitchProperlyHandlesSubclassAndMatchesOnce()
{
var origOne = new Fake.One();
var origTwo = new Fake.Two();
var origThree = new Fake.Three();
OneOf <Fake, Fake.One, Fake.Two> one = origOne;
OneOf <Fake, Fake.One, Fake.Two> two = origTwo;
OneOf <Fake, Fake.One, Fake.Two> three = origThree;
Func <OneOf <Fake, Fake.One, Fake.Two>, int> testerFunc = o =>
{
var i = 0;
o
.Switch((Fake f) => i++)
.Switch((Fake.One f) => i++)
.Switch((Fake.Two f) => i++);
return(i);
};
Assert.AreEqual(1, testerFunc(one));
Assert.AreEqual(1, testerFunc(two));
Assert.AreEqual(1, testerFunc(three));
}
public void OneOfProperlyHandlesHierarchies()
{
var origFour = new Fake.Four();
var origFive = new Fake.Five();
var origThree = new Fake.Three();
OneOf <Fake, Fake.One, Fake.Two, Fake.Four> three = origThree;
OneOf <Fake, Fake.One, Fake.Two, Fake.Four> four = origFour;
OneOf <Fake, Fake.One, Fake.Two, Fake.Four> five = origFive;
Func <OneOf <Fake, Fake.One, Fake.Two, Fake.Four>, int> testerFunc = o =>
{
var i = 0;
o
.Switch((Fake f) => i = 0)
.Switch((Fake.One f) => i = 1)
.Switch((Fake.Two f) => i = 2)
.Switch((Fake.Four f) => i = 4);
return(i);
};
Assert.AreEqual(4, testerFunc(four));
Assert.AreEqual(4, testerFunc(five));
Assert.AreEqual(0, testerFunc(three));
}
public void MatcherMatchesOnlyOnceWhenParentClassAndSubClassesAreInOneof()
{
OneOf <Fake, Fake.One, Fake.Two> one = new Fake.One();
OneOf <Fake, Fake.One, Fake.Two> two = new Fake.Two();
OneOf <Fake, Fake.One, Fake.Two> three = new Fake.Three();
Func <OneOf <Fake, Fake.One, Fake.Two>, int> testerFunc = o =>
{
var result = o.Match((Fake f) => 3).
Match((Fake.One f) => 1).
Match((Fake.Two f) => 2);
return(result);
};
Assert.AreEqual(1, testerFunc(one));
Assert.AreEqual(2, testerFunc(two));
Assert.AreEqual(3, testerFunc(three));
}