public void TryGetChildAt_GetChildrenReturnsIList_GetEnumeratorNotCalled()
{
Mock <IList <Node <int> > > mockList = new Mock <IList <Node <int> > >();
Mock <ITreeWalker <Node <int> > > mockWalker = new Mock <ITreeWalker <Node <int> > >();
mockWalker
.Setup(x => x.GetChildren(It.IsAny <Node <int> >()))
.Returns(mockList.Object);
Node <int> blah;
TreeWalkerExtensions
.TryGetChildAt(
mockWalker.Object,
default(Node <int>),
0,
out blah);
mockList.Verify(x => x.GetEnumerator(), Times.Never);
mockList.VerifyGet(x => x.Count, Times.Once);
}
public void TryGetChildAt_GetChildrenReturnsIEnumerable_GetEnumeratorCalled()
{
Mock <IEnumerable <Node <int> > > mockEnumerable = new Mock <IEnumerable <Node <int> > >();
Mock <ITreeWalker <Node <int> > > mockWalker = new Mock <ITreeWalker <Node <int> > >();
mockEnumerable
.Setup(x => x.GetEnumerator())
.Returns(Mock.Of <IEnumerator <Node <int> > >());
mockWalker
.Setup(x => x.GetChildren(It.IsAny <Node <int> >()))
.Returns(mockEnumerable.Object);
Node <int> blah;
TreeWalkerExtensions
.TryGetChildAt(
mockWalker.Object,
default(Node <int>),
0,
out blah);
mockEnumerable.Verify(x => x.GetEnumerator(), Times.Once);
}