public void Should_return_null_if_cache_not_mature_as_min_fresh_request()
{
// Arrange
var cacheControl = new CacheControlHeaderValue
{
MinFresh = TimeSpan.FromSeconds(100)
};
var cacheItem = new WebApiCacheItem
{
CreatedTime = DateTime.UtcNow.AddSeconds(-20),
MaxAge = 1000,
StaleWhileRevalidate = 5,
IgnoreRevalidationRequest = false
};
var request = UnitTestHelper.GetMessage();
var svc = new CacheResponseBuilder {
};
// Action
var response = svc.GetResponse(cacheControl, cacheItem, request);
// Assert
Assert.IsNull(response);
}
public void Should_return_null_if_stale()
{
// Arrange
var cacheControl = new CacheControlHeaderValue
{
MaxStale = true,
MaxStaleLimit = TimeSpan.FromSeconds(15)
};
var cacheItem = new WebApiCacheItem
{
CreatedTime = DateTime.UtcNow.AddSeconds(-10).AddMilliseconds(-1), // should stale just by 1 milisecond
MaxAge = 10,
StaleWhileRevalidate = 5,
IgnoreRevalidationRequest = false,
ResponseCharSet = "UTF8",
ResponseMediaType = "text/json",
Content = new byte[0],
Key = "CacheKey" + Guid.NewGuid()
};
Global.Cache.PhoenixFireCage[cacheItem.Key] = new Phoenix(NSubstitute.Substitute.For <_IInvocation>(), new CacheItem());
var request = UnitTestHelper.GetMessage();
var svc = new CacheResponseBuilder {
};
// Action
var response = svc.GetResponse(cacheControl, cacheItem, request);
// Assert
Assert.IsNull(response);
}
public void Should_return_null_when_no_cache_found()
{
// Arrange
var svc = new CacheResponseBuilder();
// Action
var result = svc.GetResponse(new CacheControlHeaderValue {
}, null, UnitTestHelper.GetMessage());
// Assert
Assert.IsNull(result);
}
public void Should_return_GatewayTimeout_when_no_cache_and_request_sent_OnlyIfCached_control()
{
// Arrange
var cacheControl = new CacheControlHeaderValue {
OnlyIfCached = true
};
var svc = new CacheResponseBuilder();
// Action
var result = svc.GetResponse(cacheControl, null, UnitTestHelper.GetMessage());
// Assert
Assert.AreEqual(HttpStatusCode.GatewayTimeout, result.StatusCode);
Assert.AreEqual("no cache available", result.Headers.GetValues("X-Flatwhite-Message").Single());
}
public void Should_return_null_when_cache_control_is_flatwhite_force_request()
{
// Arrange
var svc = new CacheResponseBuilder();
var control = new CacheControlHeaderValue();
var request = UnitTestHelper.GetMessage();
((HttpRequestContext)request.Properties[HttpPropertyKeys.RequestContextKey]).IsLocal.Returns(true);
control.Extensions.Add(new NameValueHeaderValue(WebApiExtensions.__cacheControl_flatwhite_force_refresh, "true"));
// Action
var result = svc.GetResponse(control, new WebApiCacheItem(), request);
// Assert
Assert.IsNull(result);
}
public async Task Should_return_new_etag_if_cache_item_found_but_doesnt_match_checksum(string cacheChecksum, HttpStatusCode resultCode)
{
// Arrange
var cacheControl = new CacheControlHeaderValue
{
MaxStale = true,
MaxStaleLimit = TimeSpan.FromSeconds(15),
MinFresh = TimeSpan.FromSeconds(20)
};
var oldCacheItem = new WebApiCacheItem
{
CreatedTime = DateTime.UtcNow.AddSeconds(-11),
MaxAge = 10,
StaleWhileRevalidate = 5,
IgnoreRevalidationRequest = true,
ResponseCharSet = "UTF8",
ResponseMediaType = "text/json",
Content = new byte[0],
Key = "fw-0-HASHEDKEY",
Checksum = cacheChecksum
};
var request = UnitTestHelper.GetMessage();
request.Headers.Add("If-None-Match", "\"fw-0-HASHEDKEY-OLDCHECKSUM\"");
var builder = new CacheResponseBuilder();
var handler = new EtagHeaderHandler(builder);
await Global.CacheStoreProvider.GetAsyncCacheStore().SetAsync("fw-0-HASHEDKEY", oldCacheItem, DateTimeOffset.Now.AddDays(1)).ConfigureAwait(false);
// Action
Global.Cache.PhoenixFireCage["fw-0-HASHEDKEY"] = new WebApiPhoenix(Substitute.For <_IInvocation>(), oldCacheItem, request);
var response = await handler.HandleAsync(cacheControl, request, CancellationToken.None).ConfigureAwait(false);
Assert.AreEqual(resultCode, response.StatusCode);
if (resultCode == HttpStatusCode.OK)
{
Assert.AreEqual($"\"fw-0-HASHEDKEY-{cacheChecksum}\"", response.Headers.ETag.Tag);
}
else
{
Assert.IsNull(response.Headers.ETag);
}
}
public void Should_return_Stale_header_if_stale_by_max_age()
{
// Arrange
var cacheControl = new CacheControlHeaderValue
{
MaxStale = true,
MaxStaleLimit = TimeSpan.FromSeconds(15),
MinFresh = TimeSpan.FromSeconds(20)
};
var cacheItem = new WebApiCacheItem
{
CreatedTime = DateTime.UtcNow.AddSeconds(-11),
MaxAge = 10,
StaleWhileRevalidate = 5,
IgnoreRevalidationRequest = true,
ResponseCharSet = "UTF8",
ResponseMediaType = "text/json",
Content = new byte[0],
Key = "CacheKey" + Guid.NewGuid()
};
Global.Cache.PhoenixFireCage[cacheItem.Key] = new Phoenix(NSubstitute.Substitute.For <_IInvocation>(), new CacheItem());
var request = UnitTestHelper.GetMessage();
var svc = new CacheResponseBuilder {
};
// Action
var response = svc.GetResponse(cacheControl, cacheItem, request);
// Assert
Assert.AreEqual(HttpStatusCode.OK, response.StatusCode);
Assert.AreEqual("Cache freshness lifetime not qualified", response.Headers.GetValues("X-Flatwhite-Warning").First());
Assert.AreEqual("Response is Stale", response.Headers.GetValues("X-Flatwhite-Warning").Last());
Assert.AreEqual($"110 - \"Response is Stale\"", response.Headers.GetValues("Warning").Last());
Assert.AreEqual("stale-while-revalidate", response.Headers.CacheControl.Extensions.ToList().First().Name);
Assert.AreEqual(cacheItem.ResponseMediaType, response.Content.Headers.ContentType.MediaType);
Assert.AreEqual(cacheItem.ResponseCharSet, response.Content.Headers.ContentType.CharSet);
}
