/// <summary>
/// Calculates number of occurrences of each word listed in keywords Meta Tag.
/// </summary>
/// <returns>Dictionary of each word listed in keywords meta tags.</returns>
public override Dictionary <string, int> CalculateOccuranceInMetaTag()
{
if (IsFilterStopWords && stopwordDictionary == null)
{
stopwordDictionary = CoreUtil.ProcessStopWords(StopWords);
}
if (htmlPage == null)
{
var htmlWeb = new HtmlWeb();
var lastStatusCode = HttpStatusCode.OK;
htmlWeb.PostResponse = (request, response) =>
{
if (response != null)
{
lastStatusCode = response.StatusCode;
}
};
htmlPage = htmlWeb.Load(Input);
if (lastStatusCode != HttpStatusCode.OK)
{
throw new Exception($"{Constant.WEB_REQUEST_ERROR_MESSAGE} {lastStatusCode}");
}
}
var metaTagCollection = htmlPage.DocumentNode.SelectNodes("//meta");
return(CoreUtil.ProcessMetaTag(metaTagCollection, stopwordDictionary, allWordDictionary));
}
public void ProcessMetaTag_WithDifferentMetaTagsInHtml_WithEmptyWordDictionary_ReturnDictionaryOfMetaTagWithZeorOccurence(string html)
{
//arrange
var stopwordDictionary = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
var allWordDictionary = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
var expected = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase)
{
{ "hello", 0 },
{ "world", 0 },
{ "happy", 0 },
{ "coding", 0 },
{ "start", 0 },
{ "today", 0 }
};
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(html);
HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes("//meta");
//act
var actual = CoreUtil.ProcessMetaTag(nodes, stopwordDictionary, allWordDictionary);
//assert
Assert.AreEqual(actual, expected);
}
public void ProcessMetaTag_WithWordsNotExistWithinMetaTag_ReturnDictionaryOfWordOccurenceListedInMetaTag(string html)
{
//arrange
var stopwordDictionary = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
var allWordDictionary = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase)
{
{ "happy", 5 },
{ "coding", 5 },
{ "Seo", 5 },
{ "Analyser", 5 },
{ "Text", 5 }
};
var expected = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase)
{
{ "hello", 0 },
{ "world", 0 },
{ "happy", 5 },
{ "coding", 5 },
{ "start", 0 },
{ "today", 0 }
};
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(html);
HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes("//meta");
//act
var actual = CoreUtil.ProcessMetaTag(nodes, stopwordDictionary, allWordDictionary);
//assert
Assert.AreEqual(actual, expected);
}
public void ProcessMetaTag_WithNoMetaTagsInHtml_WithEmptyWordDictionary_ReturnEmptyMetaTagDictionary(string html)
{
//arrange
var stopwordDictionary = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
var allWordDictionary = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
var expected = new Dictionary <string, int>(StringComparer.InvariantCultureIgnoreCase);
HtmlDocument doc = new HtmlDocument();
doc.LoadHtml(html);
HtmlNodeCollection nodes = doc.DocumentNode.SelectNodes("//meta");
//act
var actual = CoreUtil.ProcessMetaTag(nodes, stopwordDictionary, allWordDictionary);
//assert
Assert.AreEqual(actual, expected);
Assert.IsEmpty(actual);
}
