public void MoveToPreviousShouldWorkWhenCalledMultipleTimes()
{
var blockIterationState = A.Dummy <IBlockIterationState>();
var blockStateFactory = A.Fake <IBlockStateFactory>(i => i.Strict());
A.CallTo(() => blockStateFactory.CreateIterationState()).Returns(blockIterationState);
var sut = new BlockState(blockStateFactory);
sut.MoveToPreviousIteration().Should().BeFalse();
sut.MoveToPreviousIteration().Should().BeFalse();
sut.MoveToPreviousIteration().Should().BeFalse();
sut.GetCurrentIteration().Should().BeSameAs(blockIterationState);
A.CallTo(() => blockStateFactory.CreateIterationState()).MustHaveHappenedOnceExactly();
}
public void MoveToNextAndMoveToPreviousIteration()
{
var state1 = A.Dummy <IBlockIterationState>();
var state2 = A.Dummy <IBlockIterationState>();
var state3 = A.Dummy <IBlockIterationState>();
var blockStateFactory = A.Fake <IBlockStateFactory>(i => i.Strict());
A.CallTo(() => blockStateFactory.CreateIterationState())
.ReturnsNextFromSequence(state1, state2, state3);
var sut = new BlockState(blockStateFactory);
sut.GetCurrentIteration().Should().BeSameAs(state1);
sut.MoveToNextIteration();
sut.GetCurrentIteration().Should().BeSameAs(state2);
sut.MoveToPreviousIteration().Should().BeTrue();
sut.GetCurrentIteration().Should().BeSameAs(state1);
sut.MoveToPreviousIteration().Should().BeFalse();
sut.GetCurrentIteration().Should().BeSameAs(state3);
}
