public static void TestCachingContinuation(
string method,
bool existsInStore,
bool addVaryHeader,
bool addLastModifiedHeader,
bool alreadyHasLastModified,
string[] varyByHeader)
{
// setup
var mocks = new MockRepository();
var request = new HttpRequestMessage(new HttpMethod(method), TestUrl);
request.Headers.Add(HttpHeaderNames.Accept, "text/xml");
request.Headers.Add(HttpHeaderNames.AcceptLanguage, "en-GB");
var entityTagStore = mocks.StrictMock<IEntityTagStore>();
var cachingHandler = new CachingHandler(entityTagStore, varyByHeader)
{
AddLastModifiedHeader = addLastModifiedHeader,
AddVaryHeader = addVaryHeader
};
var entityTagHeaderValue = new TimedEntityTagHeaderValue("\"12345678\"");
var entityTagKey = new EntityTagKey(TestUrl, new string[0]);
cachingHandler.EntityTagKeyGenerator = (x, y) => entityTagKey;
cachingHandler.ETagValueGenerator = (x, y) => new EntityTagHeaderValue(entityTagHeaderValue.Tag);
entityTagStore.Expect(x => x.TryGet(Arg<EntityTagKey>.Matches(etg => etg.ResourceUri == TestUrl),
out Arg<TimedEntityTagHeaderValue>.Out(entityTagHeaderValue).Dummy)).Return(existsInStore);
if (!existsInStore || request.Method == HttpMethod.Put || request.Method == HttpMethod.Post)
{
entityTagStore.Expect(
x => x.AddOrUpdate(Arg<EntityTagKey>.Matches(etk => etk == entityTagKey),
Arg<TimedEntityTagHeaderValue>.Matches(ethv => ethv.Tag == entityTagHeaderValue.Tag)));
}
mocks.ReplayAll();
var response = new HttpResponseMessage();
response.Content = new ByteArrayContent(new byte[0]);
if(alreadyHasLastModified)
response.Content.Headers.Add(HttpHeaderNames.LastModified, DateTimeOffset.Now.ToString("r"));
var cachingContinuation = cachingHandler.GetCachingContinuation(request);
var taskCompletionSource = new TaskCompletionSource<HttpResponseMessage>();
taskCompletionSource.SetResult(response);
// run
var httpResponseMessage = cachingContinuation(taskCompletionSource.Task);
// test
if(addLastModifiedHeader)
{
Assert.That(httpResponseMessage.Content.Headers.Any(x=>x.Key == HttpHeaderNames.LastModified),
"LastModified does not exist");
}
if(!addLastModifiedHeader && !alreadyHasLastModified)
{
Assert.That(!httpResponseMessage.Content.Headers.Any(x => x.Key == HttpHeaderNames.LastModified),
"LastModified exists");
}
}
