public void ReadAndProcess_FeedWithEmptyPage0_ShouldNotReadAllItems_EmptyPageOnFeedExceptionThrown()
{
// Arrange
var atomFeedProcessor = new AtomFeedProcessor((uri) =>
{
if (uri == "http://page0/")
{
return(GetEmptyPage(next_url: "http://page1"));
}
if (uri == "http://page1/")
{
return(GetFeedPage1(prev_url: "http://page0"));
}
return(null);
});
// Act
atomFeedProcessor.ReadAndProcess(
"http://page1/",
shouldReadAllItems: () => false,
isPreviouslyReadItem: item => false,
processItem: item => item,
afterLastItemProcessed: (item, uri) => { });
}
public void ReadAndProcess_FeedWithNoItems_ShouldNotReadAllItems_AfterLastItemProcessedCalled()
{
// Arrange
var afterLastItemProcessedCalled = false;
var atomFeedProcessor = new AtomFeedProcessor((uri) => GetEmptyPage());
// Act
atomFeedProcessor.ReadAndProcess(
"test",
shouldReadAllItems: () => false,
isPreviouslyReadItem: item => false,
processItem: item => item,
afterLastItemProcessed: (item, uri) => { afterLastItemProcessedCalled = true; });
// Assert
Assert.AreEqual(true, afterLastItemProcessedCalled);
}
public void ReadAndProcess_FeedWithOnePage_MatchingSearchValueFound_ElementsAfterMatchingSearchValueRead()
{
// Arrange
var lastReadId = "Id1";
var afterLastItemProcessedCalled = false;
var atomFeedProcessor = new AtomFeedProcessor((uri) => GetFeedPage0());
// Act
var actual = atomFeedProcessor.ReadAndProcess("test",
shouldReadAllItems: () => false,
isPreviouslyReadItem: item => item.Id == lastReadId,
processItem: item => item,
afterLastItemProcessed: (item, uri) => { afterLastItemProcessedCalled = true; }).ToList();
// Assert
Assert.AreEqual(1, actual.Count);
Assert.AreEqual("Id2", actual[0].Id);
Assert.AreEqual("Item 2", actual[0].Title.Text);
Assert.AreEqual(false, afterLastItemProcessedCalled);
}
public void ReadAndProcess_FeedWithMultiplePages_SearchValueAsEmpty_AllItemsRetreived()
{
// Arrange
var lastReadItemId = string.Empty;
var afterLastItemProcessedCalled = false;
var atomFeedProcessor = new AtomFeedProcessor((uri) =>
{
if (uri == "http://page0/")
{
return(GetFeedPage0(next_url: "http://page1"));
}
if (uri == "http://page1/")
{
return(GetFeedPage1(prev_url: "http://page0"));
}
return(null);
});
// Act
var actual = new List <SyndicationItem>();
actual.AddRange(atomFeedProcessor.ReadAndProcess(
"http://page0/",
shouldReadAllItems: () => true,
isPreviouslyReadItem: item => item.Id == lastReadItemId,
processItem: item => item,
afterLastItemProcessed: (item, uri) => { afterLastItemProcessedCalled = true; }));
// Assert
Assert.AreEqual(4, actual.Count);
Assert.AreEqual("Id1", actual[0].Id);
Assert.AreEqual("Id2", actual[1].Id);
Assert.AreEqual("Id3", actual[2].Id);
Assert.AreEqual("Id4", actual[3].Id);
Assert.AreEqual("Item 1", actual[0].Title.Text);
Assert.AreEqual("Item 2", actual[1].Title.Text);
Assert.AreEqual("Item 3", actual[2].Title.Text);
Assert.AreEqual("Item 4", actual[3].Title.Text);
Assert.AreEqual(true, afterLastItemProcessedCalled);
}