public async Task SendAsync_ProxyRevalidateAndFresh_CachedResponseIsReturned()
{
var freshResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(TenMinutesAgo)
.Expires(_testDate.AddHours(2))
.WithProxyRevalidate()
.Build();
var content = await freshResponse.Content.ReadAsByteArrayAsync();
_fakeMessageHandler.Response = freshResponse;
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns((StoredHttpResponseMessage)null);
_cacheMock.Setup(x => x.Put(It.IsAny <string>(), It.IsAny <StoredHttpResponseMessage>()));
var response = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Miss, response.Headers.GetCashewStatusHeader());
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(freshResponse, content));
var secondResponse = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.Equal(CacheStatus.Hit, secondResponse.Headers.GetCashewStatusHeader());
_cacheMock.Reset();
}
public async Task SendAsync_MustRevalidateAndResponseIsModified_NewResponseUsedAndReplacedOldCached()
{
var etag = "\"awesomeetag\"";
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK)
.Created(TenMinutesAgo)
.WithMustRevalidate()
.WithETag(etag)
.Expires(_testDate.Subtract(TimeSpan.FromMinutes(5)))
.Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(cachedResponse, content));
var freshResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(_testDate).Expires(_testDate.Add(TimeSpan.FromMinutes(10))).Build();
_fakeMessageHandler.Response = freshResponse;
var request = RequestBuilder.Request(HttpMethod.Get, Url).Build();
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
Assert.Equal(freshResponse, response);
// _cacheMock.Verify(x => x.Put(It.IsAny<string>(), It.Is<StoredHttpResponseMessage>(message => message.Headers.Select(h=>h.Item2).ToArray().Equals(freshResponse.Headers.Select(s=>s.Key).ToArray()))), Times.Once);
_cacheMock.Reset();
}
public async Task SendAsync_ProxyRevalidateAndStale_ResponseIsRevalidatedOnSubsequentRequest()
{
var firstResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(TenMinutesAgo)
.WithMaxAge(60)
.WithProxyRevalidate()
.Build();
var content = await firstResponse.Content.ReadAsByteArrayAsync();
_fakeMessageHandler.Response = firstResponse;
var revalidatedResponse = ResponseBuilder.Response(HttpStatusCode.NotModified).Created(_testDate).Build();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns((StoredHttpResponseMessage)null);
_cacheMock.Setup(x => x.Put(It.IsAny <string>(), It.IsAny <StoredHttpResponseMessage>()));
//save put
var response = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Miss, response.Headers.GetCashewStatusHeader());
Assert.Equal(firstResponse, response);
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(firstResponse, content));
_fakeMessageHandler.Response = revalidatedResponse;
var secondResponse = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.Equal(CacheStatus.Revalidated, secondResponse.Headers.GetCashewStatusHeader());
Assert.Equal(firstResponse, secondResponse, new ResponseEqualityComparer());
_cacheMock.Verify(x => x.GetResponse(It.IsAny <string>()), Times.Exactly(2));
_cacheMock.Verify(x => x.Put(It.IsAny <string>(), It.IsAny <StoredHttpResponseMessage>()), Times.Exactly(2));
_cacheMock.Reset();
}
public async Task SendAsync_SharedMaxAgeInResponseAndAgeLessThanSharedMaxAge_CachedResponseIsFresh()
{
var serverResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(_testDate.Subtract(TimeSpan.FromMinutes(30))).WithSharedMaxAge(3600).Build();
var content = await serverResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns((StoredHttpResponseMessage)null);
_fakeMessageHandler.Response = serverResponse;
var response = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.Equal(CacheStatus.Miss, response.Headers.GetCashewStatusHeader());
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(serverResponse, content));
var secondResponse = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.Equal(CacheStatus.Hit, secondResponse.Headers.GetCashewStatusHeader());
}
public async Task SendAsync_StaleResponseWithinMaxStaleLimit_CachedResponseIsReturned()
{
var request = RequestBuilder.Request(HttpMethod.Get, Url).WithMaxStaleLimit(3600).Build();
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(_testDate.Subtract(TimeSpan.FromMinutes(20))).Expires(TenMinutesAgo).Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(() => StoredHttpResponseMessage.Create(cachedResponse, content));
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Stale, response.Headers.GetCashewStatusHeader());
Assert.Equal(cachedResponse, response, new ResponseEqualityComparer());
_cacheMock.Verify(x => x.GetResponse(It.IsAny <string>()), Times.Once);
_cacheMock.Reset();
}
public async Task SendAsync_MinFreshOneMinuteCachedResponseStillFreshForTwentySeconds_CacheIsRevalidated()
{
var request = RequestBuilder.Request(HttpMethod.Get, Url).WithMinFresh(60).Build();
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK)
.Created(TenMinutesAgo)
.Expires(_testDate.AddSeconds(20))
.Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(() => StoredHttpResponseMessage.Create(cachedResponse, content));
_fakeMessageHandler.Response = ResponseBuilder.Response(HttpStatusCode.OK).Build();
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
_cacheMock.Verify(x => x.GetResponse(It.IsAny <string>()), Times.Once);
_cacheMock.Reset();
}
public async Task SendAsync_OnlyIfCachedAndCachedResponseIsFresh_CachedResponseIsReturned()
{
var request = RequestBuilder.Request(HttpMethod.Get, Url).WithOnlyIfCached().Build();
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK)
.Created(TenMinutesAgo)
.Expires(_testDate.AddHours(1))
.Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(() => StoredHttpResponseMessage.Create(cachedResponse, content));
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(cachedResponse, response, new ResponseEqualityComparer());
Assert.Equal(CacheStatus.Hit, response.Headers.GetCashewStatusHeader());
_cacheMock.Verify(x => x.GetResponse(It.IsAny <string>()), Times.Once);
_cacheMock.Reset();
}
public async Task SendAsync_MustRevalidateAndLastModifiedInResponse_IfModifiedSinceAddedToRequest()
{
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK)
.Created(TenMinutesAgo)
.WithMustRevalidate()
.LastModified(TenMinutesAgo)
.Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(cachedResponse, content));
_fakeMessageHandler.Response = ResponseBuilder.Response(HttpStatusCode.NotModified).Created(_testDate).Build();
var request = RequestBuilder.Request(HttpMethod.Get, Url).Build();
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
Assert.Equal(TenMinutesAgo, request.Headers.IfModifiedSince.Value);
_cacheMock.Reset();
}
public async Task SendAsync_StaleResponseOverMaxStaleLimit_ResponseIsRevalidated()
{
var request = RequestBuilder.Request(HttpMethod.Get, Url).WithMaxStaleLimit(60).Build();
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK).Expires(TenMinutesAgo).Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(() => StoredHttpResponseMessage.Create(cachedResponse, content));
var freshResponse = ResponseBuilder.Response(HttpStatusCode.NotModified).Created(_testDate).Build();
_fakeMessageHandler.Response = freshResponse;
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
Assert.Equal(cachedResponse, response, new ResponseEqualityComparer());
_cacheMock.Verify(x => x.GetResponse(It.IsAny <string>()), Times.Once);
_cacheMock.Reset();
}
public async Task SendAsync_MaxAgeAndStaleWithStaleNotAcceptable_ResponseIsRevalidated()
{
var etag = "\"awesomeetag\"";
var request = RequestBuilder.Request(HttpMethod.Get, Url).WithMaxAge(3600).Build();
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(_testDate.Subtract(TimeSpan.FromHours(2))).WithMaxAge(3600).WithETag(etag).Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
var fakeResponse = ResponseBuilder.Response(HttpStatusCode.NotModified).Created(_testDate).Build();
_fakeMessageHandler.Response = fakeResponse;
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(cachedResponse, content));
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
Assert.Equal(cachedResponse, response, new ResponseEqualityComparer());
_cacheMock.Verify(x => x.GetResponse(It.IsAny <string>()), Times.Once);
_cacheMock.Reset();
}
public async Task SendAsync_NoCacheInResponse_CachedResponseIsRevalidated()
{
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(() => null);
var freshResponse = ResponseBuilder.Response(HttpStatusCode.OK).Created(_testDate).WithNoCache().Build();
_fakeMessageHandler.Response = freshResponse;
var firstResponse = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.NotNull(firstResponse.RequestMessage);
var content = await firstResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(freshResponse, content));
var secondResponse = await _client.SendAsync(RequestBuilder.Request(HttpMethod.Get, Url).Build());
Assert.NotNull(secondResponse.RequestMessage);
Assert.Equal(firstResponse, secondResponse, new ResponseEqualityComparer());
Assert.Equal(CacheStatus.Revalidated, secondResponse.Headers.GetCashewStatusHeader());
_cacheMock.Reset();
}
public void StoredHttpResponse_Serializes_With_BinaryFormatter()
{
var sample = Sample();
var serializer = new BinaryFormatter();
var stored = StoredHttpResponseMessage.Create(sample).Result;
byte[] serialized;
using (var writeStream = new MemoryStream())
{
serializer.Serialize(writeStream, stored);
serialized = writeStream.ToArray();
}
StoredHttpResponseMessage restored;
using (var readStream = new MemoryStream(serialized))
{
restored = (StoredHttpResponseMessage)serializer.Deserialize(readStream);
}
Check(sample, restored.CopyIntoResponseMessage(new HttpRequestMessage()));
}
public async Task SendAsync_MustRevalidateAndResponseIsNotModified_CachedResponseIsUpdatedAndUsed()
{
var etag = "\"awesomeetag\"";
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK)
.Created(TenMinutesAgo)
.WithMustRevalidate()
.WithETag(etag)
.Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(cachedResponse, content));
_fakeMessageHandler.Response = ResponseBuilder.Response(HttpStatusCode.NotModified).Created(_testDate).Build();
var request = RequestBuilder.Request(HttpMethod.Get, Url).Build();
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
Assert.Equal(cachedResponse, response, new ResponseEqualityComparer());
Assert.True(response.Headers.Date > TenMinutesAgo);
_cacheMock.Reset();
}
public async Task SendAsync_MustRevalidateAndETagInResponse_IfNoneMatchAddedToRequest()
{
var etag = "\"awesomeetag\"";
var cachedResponse = ResponseBuilder.Response(HttpStatusCode.OK)
.Created(TenMinutesAgo)
.WithMustRevalidate()
.WithETag(etag)
.Expires(_testDate.Subtract(TimeSpan.FromMinutes(5)))
.Build();
var content = await cachedResponse.Content.ReadAsByteArrayAsync();
_cacheMock.Setup(x => x.GetResponse(It.IsAny <string>())).Returns(StoredHttpResponseMessage.Create(cachedResponse, content));
_fakeMessageHandler.Response = ResponseBuilder.Response(HttpStatusCode.NotModified).Created(_testDate).Build();
var request = RequestBuilder.Request(HttpMethod.Get, Url).Build();
var response = await _client.SendAsync(request);
Assert.NotNull(response.RequestMessage);
Assert.Equal(CacheStatus.Revalidated, response.Headers.GetCashewStatusHeader());
Assert.Equal(etag, request.Headers.IfNoneMatch.First().Tag);
_cacheMock.Reset();
}
public void StoredHttpResponse_Serializes_With_Json()
{
var sample = Sample();
var serializer = new JsonSerializer {
TypeNameHandling = TypeNameHandling.Objects
};
var stored = StoredHttpResponseMessage.Create(sample).Result;
string serialized;
using (var writer = new StringWriter())
{
serializer.Serialize(writer, stored);
serialized = writer.ToString();
}
StoredHttpResponseMessage restored;
using (var reader = new StringReader(serialized))
{
restored = (StoredHttpResponseMessage)serializer.Deserialize(reader, typeof(object));
}
Check(sample, restored.CopyIntoResponseMessage(new HttpRequestMessage()));
}