public void SutIsBasketPipe()
{
var dummyVisitor = new Mock <IBasketVisitor>().Object;
var sut = new BasketVisitorPipe(dummyVisitor);
Assert.IsAssignableFrom <IPipe <Basket> >(sut);
}
public void VisitorIsCorrect()
{
var expected = new Mock <IBasketVisitor>
{
DefaultValue = DefaultValue.Mock
}.Object;
var sut = new BasketVisitorPipe(expected);
IBasketVisitor actual = sut.Visitor;
Assert.Same(expected, actual);
}
public void PipeReturnsCorrectResult()
{
// Fixture setup
var r = new MockRepository(MockBehavior.Default)
{
DefaultValue = DefaultValue.Mock
};
var v1Stub = r.Create <IBasketVisitor>();
var v2Stub = r.Create <IBasketVisitor>();
var v3Stub = r.Create <IBasketVisitor>();
var e1Stub = r.Create <IBasketElement>();
var e2Stub = r.Create <IBasketElement>();
e1Stub.Setup(e => e.Accept(v1Stub.Object)).Returns(v2Stub.Object);
e2Stub.Setup(e => e.Accept(v2Stub.Object)).Returns(v3Stub.Object);
var newElements = new[]
{
r.Create <IBasketElement>().Object,
r.Create <IBasketElement>().Object,
r.Create <IBasketElement>().Object,
};
v3Stub
.Setup(v => v.GetEnumerator())
.Returns(newElements.AsEnumerable().GetEnumerator());
var sut = new BasketVisitorPipe(v1Stub.Object);
// Exercise system
var basket = new Basket(e1Stub.Object, e2Stub.Object);
Basket actual = sut.Pipe(basket);
// Verify outcome
Assert.True(basket.Concat(newElements).SequenceEqual(actual));
// Teardown
}
