public static OpenGraphResult ParseHtml(string content)
{
var result = new OpenGraphResult();
var document = new HtmlDocument();
document.LoadHtml(content);
var allMeta = document.DocumentNode.SelectNodes("//meta");
var openGraphMetaTags = from meta in allMeta
where (meta.Attributes.Contains("property")
&& meta.Attributes["property"].Value.StartsWith("og:")) ||
(meta.Attributes.Contains("name") &&
meta.Attributes["name"].Value.StartsWith("og:"))
select meta;
foreach (var metaTag in openGraphMetaTags)
{
var value = GetOpenGraphValue(metaTag);
var property = GetOpenGraphKey(metaTag);
if (string.IsNullOrWhiteSpace(value))
continue;
result.Add(property, value);
}
result.PageData = new PageData();
result.PageData.Title = document.DocumentNode.SelectSingleNode("//head/title").InnerText;
return result;
}
public async Task GetGraphResultsAsyncReturnsOpenGraphAPIResults()
{
// Arrange
List <OpenGraphRequest> openGraphRequests = new List <OpenGraphRequest>()
{
new OpenGraphRequest
{
Url = "www.microsoft.com",
Id = "1"
}
};
// Act
IEnumerable <OpenGraphResult> openGraphResult = await _openGraphService.GetGraphResultsAsync(_mockHttpRequest.Object, openGraphRequests);
// Assert
var enumerator = openGraphResult.GetEnumerator();
enumerator.MoveNext();
OpenGraphResult firstElement = enumerator.Current;
Assert.NotNull(firstElement.Id);
Assert.NotNull(firstElement.Title);
Assert.NotNull(firstElement.Description);
}
