public async Task BrokenServerFixedSizePagedAsync()
{
var server = new FakeServer(s_resourceA, 1);
var request = new PageStreamingRequest {
PageSize = 0
};
var paged = server.PagedAsync(null, null, request);
await Assert.ThrowsAsync <NotSupportedException>(() => paged.ReadPageAsync(1));
}
public async Task FlattenAsync(PagedResource pagedResource, int pageSize)
{
var server = new FakeServer(pagedResource);
var request = new PageStreamingRequest {
PageSize = pageSize
};
var paged = server.PagedAsync(null, null, request);
Assert.Equal(pagedResource.All, await paged.ToArray());
}
public async Task SpecifyPageTokenAtStartAsync()
{
var server = new FakeServer(s_resourceA, 1);
var request = new PageStreamingRequest {
PageSize = 0, PageToken = "1:0"
};
var paged = server.PagedAsync(null, null, request);
Assert.Equal(s_resourceA.Resource.Skip(1), await paged.AsRawResponses().Select(x => x.ToArray()).ToArray());
}
public async Task NaturalPagesAsync(PagedResource pagedResource)
{
var server = new FakeServer(pagedResource);
var request = new PageStreamingRequest {
PageSize = 0
};
var paged = server.PagedAsync(null, null, request);
Assert.Equal(pagedResource.Resource, await paged.AsRawResponses().Select(x => x.ToArray()).ToArray());
}
public async Task NoDataAsync()
{
var noDataResource = new PagedResource();
var server = new FakeServer(noDataResource);
var request = new PageStreamingRequest {
PageSize = 0
};
var paged = server.PagedAsync(null, null, request);
// Natural pages
Assert.Equal(1, await paged.AsRawResponses().Count());
var page1 = await paged.AsRawResponses().First();
Assert.Empty(page1);
Assert.Equal("", page1.NextPageToken);
// Unnatural things
Assert.Empty(await paged.ToArray());
Assert.Empty(await paged.ReadPageAsync(1));
}
public async Task ReadPageAsync(PagedResource pagedResource, int pageSize)
{
var server = new FakeServer(pagedResource);
string pageToken = "";
var actualPages = new List <Page <int> >();
do
{
var request = new PageStreamingRequest {
PageSize = pageSize, PageToken = pageToken
};
var paged = server.PagedAsync(null, null, request);
actualPages.Add(await paged.ReadPageAsync(pageSize));
} while ((pageToken = actualPages.Last().NextPageToken) != "");
var expectedPages = pagedResource.Fixed(pageSize);
// Ignore trailing empty pages; we could change the fake server to avoid returning a page
// token when we've reached (but not gone past) the end.
Assert.Equal(expectedPages, actualPages.TakeWhile(p => p.Any()).Select(p => p.ToArray()).ToArray());
}
