public void PushOne_CountShouldBecomeOne()
{
IFragment fragment = new FakeFragment();
this.collection.Push(fragment);
Assert.AreEqual(1, this.collection.Count());
}
public void PopOneWhenCountOne_CountShouldBecomeZero()
{
IFragment fragment = new FakeFragment();
this.collection.Push(fragment);
this.collection.Pop();
Assert.AreEqual(0, this.collection.Count());
}
public void PeekShouldNotChangeCount()
{
IFragment fragment = new FakeFragment();
this.collection.Push(fragment);
int count1 = this.collection.Count();
fragment = this.collection.Peek();
int count2 = this.collection.Count();
Assert.AreEqual(count1, count2);
}