public void InvalidExtractRankTest()
{
_hackerPageMock.Setup(
x => x.ExtractRank(null, It.IsAny <int>(), It.IsAny <NewsItem>()))
.Throws(new Exception());
_hackerPage = _hackerPageMock.Object;
var ex = Assert.Throws <Exception>(() =>
_hackerPage.ExtractRank(null, 1, new NewsItem()),
"Exception was not thrown for empty HtmlNodeCollection.");
}
public void ValidExtractRankTest()
{
_hackerPageMock.Setup(
x => x.ExtractRank(It.IsAny <HtmlNodeCollection>(), It.IsAny <int>(), It.IsAny <NewsItem>()))
.Returns(new NewsItem());
_hackerPage = _hackerPageMock.Object;
var newsItem = _hackerPage.ExtractRank(new HtmlNodeCollection(null), 1, new NewsItem());
Assert.IsNotNull(newsItem, "An empty NewsItem has been returned.");
}