public void CaseInsensitiveMatch_Rank_ReturnsIndex()
{
Mock <IExtractor> mock_extractor = new Mock <IExtractor>();
mock_extractor.Setup(e => e.Extract(It.IsAny <string>()))
.Returns(new[] { "http://site1.com", "https://www.site2.org.au/coolness?query=wot", "https://SITE3.com/", "http://site2.org.au/warmness" });
IRanker patient = new ExtractionRanker(mock_extractor.Object);
string result = patient.Rank("doesn't matter", "site3.com");
result.Should().Be("3", $"the hostname of the third URL matches 'site3.com' case insensitively");
}
public void PartialMatchNotPrecededByDot_Rank_ReturnsZero()
{
Mock <IExtractor> mock_extractor = new Mock <IExtractor>();
mock_extractor.Setup(e => e.Extract(It.IsAny <string>()))
.Returns(new[] { "http://site1.com", "https://www.site2.org.au/coolness?query=wot", "https://SITE3.com/", "http://site2.org.au/warmness" });
IRanker patient = new ExtractionRanker(mock_extractor.Object);
string result = patient.Rank("doesn't matter", "ite2.org.au");
result.Should().Be("0", $"partial matches must be preceded by a dot");
}
public void ExactAndPartialMatches_Rank_ReturnsMatchingIndices()
{
Mock <IExtractor> mock_extractor = new Mock <IExtractor>();
mock_extractor.Setup(e => e.Extract(It.IsAny <string>()))
.Returns(new[] { "http://site1.com", "https://www.site2.org.au/coolness?query=wot", "https://SITE3.com/", "http://site2.org.au/warmness" });
IRanker patient = new ExtractionRanker(mock_extractor.Object);
string result = patient.Rank("doesn't matter", "site2.org.au");
result.Should().Be("2 4", $"the hostname of the second and fourth URLs matches 'site2.org.au' either exactly or partially");
}
public void ExactMatch_Rank_ReturnsMatchingIndex()
{
Mock <IExtractor> mock_extractor = new Mock <IExtractor>();
mock_extractor.Setup(e => e.Extract(It.IsAny <string>()))
.Returns(new[] { "http://site1.com", "https://www.site2.org.au/coolness?query=wot", "https://SITE3.com/", "http://site2.org.au/warmness" });
IRanker patient = new ExtractionRanker(mock_extractor.Object);
string result = patient.Rank("doesn't matter", "site1.com");
result.Should().Be("1", $"the hostname of (only) the first extracted URL matches the second parameter of {nameof(IRanker.Rank)}() exactly");
}
public void NoMatchingUrls_Rank_ReturnsZero()
{
Mock <IExtractor> mock_extractor = new Mock <IExtractor>();
mock_extractor.Setup(e => e.Extract(It.IsAny <string>()))
.Returns(new[] { "http://site1.com", "https://www.site2.org.au/coolness?query=wot", "https://SITE3.com/", "http://site2.org.au/warmness" });
IRanker patient = new ExtractionRanker(mock_extractor.Object);
string result = patient.Rank("doesn't matter", "totes.not.matching");
result.Should().Be("0", "the brief indicates that zero should be returned when there are no matches");
}
public void InfiniteUrls_Rank_OnlyEnumeratesFirst100()
{
int step_count = 0;
IEnumerable <string> InfinitelyMe()
{
while (true)
{
step_count++;
yield return("Me");
}
}
Mock <IExtractor> mock_extractor = new Mock <IExtractor>();
mock_extractor.Setup(e => e.Extract(It.IsAny <string>()))
.Returns(InfinitelyMe);
IRanker patient = new ExtractionRanker(mock_extractor.Object);
patient.Rank("doesn't matter", "doesn't matter");
step_count.Should().Be(100, "the user is only interested in the first 100 results");
}
