public async Task DownloadFileFromCacheNotThereYet()
{
var f = new dummyFile();
f.GetStream = () =>
{
throw new InvalidOperationException();
};
// Install original data in cache
var dc = new dummyCache();
var data = await TestUtils.GetFileAsBytes("test.pdf");
await f.SaveFileInCache(f.DateToReturn, data, dc);
// Create VM's and hook them up.
var vm = new FileDownloadController(f, dc);
var pf = new PDFFile(vm);
var dummy1 = pf.NumberOfPages;
// Start it off
Debug.WriteLine("FIring the download or update");
vm.DownloadOrUpdate.Execute(null);
await pf.WhenAny(x => x.NumberOfPages, x => x.Value)
.Where(x => x != 0)
.Timeout(TimeSpan.FromSeconds(1), Observable.Return <int>(0))
.FirstAsync();
Assert.AreEqual(10, pf.NumberOfPages);
}
public async Task CheckTest2()
{
var data = await TestUtils.GetFileAsBytes("test2.pdf");
var f = new dummyFile();
f.GetStream = () =>
{
throw new InvalidOperationException();
};
// Install original data in cache
var dc = new dummyCache();
await f.SaveFileInCache(f.DateToReturn, data, dc);
// Create VM's and hook them up.
var vm = new FileDownloadController(f, dc);
var pf = new PDFFile(vm);
var dummy1 = pf.NumberOfPages;
// Start it off
vm.DownloadOrUpdate.Execute(null);
await pf.WhenAny(x => x.NumberOfPages, y => y.Value)
.Where(y => y != 0)
.Take(1)
.Timeout(TimeSpan.FromSeconds(1), Observable.Return(0))
.FirstAsync();
Assert.AreEqual(6, pf.NumberOfPages);
// Now, make sure that we still get a "1" out of the update guy.
}
public async Task GetFileViaCacheSequenceTwice()
{
// Pretend a cache miss, and fetch the file to do the render. ANd then
// do it again.
var f = new dummyFile();
var data = await TestUtils.GetFileAsBytes("test.pdf");
f.GetStream = () =>
{
return(Observable.Return(new StreamReader(new MemoryStream(data))));
};
var dc = new dummyCache();
var vm = new FileDownloadController(f, dc);
var pf = new PDFFile(vm);
var dummy1 = pf.NumberOfPages;
vm.DownloadOrUpdate.Execute(null);
await pf.WhenAny(x => x.NumberOfPages, y => y.Value)
.Where(y => y != 0)
.Take(1)
.Timeout(TimeSpan.FromSeconds(1), Observable.Return(0))
.FirstAsync();
Assert.AreEqual(10, pf.NumberOfPages);
var pupdate = await pf.GetPageStreamAndCacheInfo(5).Timeout(TimeSpan.FromSeconds(1)).FirstAsync();
// First rendering
var page = await pupdate.Item2.FirstAsync();
// Get the # of times we've done a data lookup. And this shouldn't change when we get it again.
var getCalls = dc.NumberTimesGetCalled;
Debug.WriteLine("Get was called {0} times after first page was rendered.", getCalls);
var pageAgain = await pupdate.Item2.FirstAsync();
Assert.AreEqual(getCalls, dc.NumberTimesGetCalled);
}