/// <summary>
/// Creates an <see cref="XmlReader" /> for reading an Atom feed from
/// the provided <see cref="Uri" />.
/// </summary>
/// <param name="href">
/// The relative <see cref="Uri" /> of the Atom feed to read.
/// </param>
/// <returns>
/// An <see cref="XmlReader" /> over the Atom feed identified by
/// <paramref name="href" />.
/// </returns>
/// <remarks>
/// <para>
/// This method attempts to find a BLOB corresponding to
/// <paramref name="href" />. If the BLOB is found, an
/// <see cref="XmlReader" /> over that BLOB is created and returned. If
/// the BLOB isn't found, an XmlReader over an empty Atom Feed is
/// returned. In this case, no BLOB is created for the empty Atom Feed.
/// In other words: this method has no observable side-effects.
/// </para>
/// </remarks>
public XmlReader CreateFeedReaderFor(Uri href)
{
var blobRef = this.CreateBlobReference(href);
if (blobRef.Exists())
{
return(XmlReader.Create(
blobRef.OpenRead(),
new XmlReaderSettings {
CloseInput = true
}));
}
return(AtomEventStorage.CreateNewFeed(href));
}
public void CreateNewFeedReturnsCorrectResult(
Guid id,
IContentSerializer dummySerializer)
{
var href = new Uri(id.ToString(), UriKind.Relative);
var before = DateTimeOffset.Now;
XmlReader actual = AtomEventStorage.CreateNewFeed(href);
var actualFeed = AtomFeed.ReadFrom(actual, dummySerializer);
Assert.Equal <Guid>(id, actualFeed.Id);
Assert.True(before <= actualFeed.Updated);
Assert.True(actualFeed.Updated <= DateTimeOffset.Now);
Assert.Empty(actualFeed.Entries);
Assert.Contains(AtomLink.CreateSelfLink(href), actualFeed.Links);
}
