public async Task GetPageRanks_IfResultTextIsPresentBeyondMaxResultsToSearch_ShouldNotReturnThatPageRank(
            string searchText, string expectedText, string searchPageUrl)
        {
            var    htmlReaderMock     = new Mock <IHtmlPageParser>();
            var    searchStrategyMock = new Mock <ISearchStrategy>();
            string nullString         = null;
            int    maxResultsToSearch = 2;

            var urlList = new List <string> {
                "randomurl", expectedText, "randomurl", expectedText
            };

            searchStrategyMock.Setup(m => m.GetSearchPageUrl(1)).Returns(searchPageUrl);
            searchStrategyMock.Setup(m => m.GetSearchPageUrl(2)).Returns(nullString);

            htmlReaderMock.Setup(m => m.GetAttributeValues(searchPageUrl, It.IsAny <string>(), It.IsAny <string>())).ReturnsAsync(urlList);

            var sut = new HtmlSearchResultParser(htmlReaderMock.Object);

            sut.SetStrategy(searchStrategyMock.Object);

            var result = await sut.GetPageRanks(searchText, expectedText, maxResultsToSearch);

            Assert.Equal(2, result.First());
            Assert.Single(result);
        }
        public async Task GetPageRanks_IfMaxResultsToSearchIsZero_ShouldReturnEmptyList(string searchText, string expectedText)
        {
            var    htmlReaderMock     = new Mock <IHtmlPageParser>();
            var    searchStrategyMock = new Mock <ISearchStrategy>();
            string nullString         = null;

            searchStrategyMock.Setup(m => m.GetSearchPageUrl(It.IsAny <int>())).Returns(nullString);

            var sut = new HtmlSearchResultParser(htmlReaderMock.Object);

            sut.SetStrategy(searchStrategyMock.Object);

            var result = await sut.GetPageRanks(searchText, expectedText, 0);

            Assert.Empty(result);
        }