public async Task TryServeFromCacheAsync_VaryByRuleFound_CachedResponseFound_Succeeds()
{
var cache = new TestResponseCache();
var sink = new TestSink();
var middleware = TestUtils.CreateTestMiddleware(testSink: sink, cache: cache, keyProvider: new TestResponseCachingKeyProvider("BaseKey", new[] { "VaryKey", "VaryKey2" }));
var context = TestUtils.CreateTestContext();
await cache.SetAsync(
"BaseKey",
new CachedVaryByRules(),
TimeSpan.Zero);
await cache.SetAsync(
"BaseKeyVaryKey2",
new CachedResponse()
{
Headers = new HeaderDictionary(),
Body = new SegmentReadStream(new List <byte[]>(0), 0)
},
TimeSpan.Zero);
Assert.True(await middleware.TryServeFromCacheAsync(context));
Assert.Equal(3, cache.GetCount);
TestUtils.AssertLoggedMessages(
sink.Writes,
LoggedMessage.CachedResponseServed);
}
public async Task TryServeFromCacheAsync_CachedResponseFound_OverwritesExistingHeaders()
{
var cache = new TestResponseCache();
var sink = new TestSink();
var middleware = TestUtils.CreateTestMiddleware(testSink: sink, cache: cache, keyProvider: new TestResponseCachingKeyProvider("BaseKey"));
var context = TestUtils.CreateTestContext();
context.HttpContext.Response.Headers["MyHeader"] = "OldValue";
await cache.SetAsync(
"BaseKey",
new CachedResponse()
{
Headers = new HeaderDictionary()
{
{ "MyHeader", "NewValue" }
},
Body = new SegmentReadStream(new List <byte[]>(0), 0)
},
TimeSpan.Zero);
Assert.True(await middleware.TryServeFromCacheAsync(context));
Assert.Equal("NewValue", context.HttpContext.Response.Headers["MyHeader"]);
Assert.Equal(1, cache.GetCount);
TestUtils.AssertLoggedMessages(
sink.Writes,
LoggedMessage.CachedResponseServed);
}
public async Task TryServeFromCacheAsync_VaryByRuleFound_CachedResponseNotFound_Fails()
{
var cache = new TestResponseCache();
var sink = new TestSink();
var middleware = TestUtils.CreateTestMiddleware(testSink: sink, cache: cache, keyProvider: new TestResponseCachingKeyProvider("BaseKey", "VaryKey"));
var context = TestUtils.CreateTestContext();
await cache.SetAsync(
"BaseKey",
new CachedVaryByRules(),
TimeSpan.Zero);
Assert.False(await middleware.TryServeFromCacheAsync(context));
Assert.Equal(2, cache.GetCount);
TestUtils.AssertLoggedMessages(
sink.Writes,
LoggedMessage.NoResponseServed);
}
public async Task TryServeFromCacheAsync_CachedResponseFound_Serves304IfPossible()
{
var cache = new TestResponseCache();
var sink = new TestSink();
var middleware = TestUtils.CreateTestMiddleware(testSink: sink, cache: cache, keyProvider: new TestResponseCachingKeyProvider("BaseKey"));
var context = TestUtils.CreateTestContext();
context.HttpContext.Request.Headers[HeaderNames.IfNoneMatch] = "*";
await cache.SetAsync(
"BaseKey",
new CachedResponse()
{
Body = new SegmentReadStream(new List <byte[]>(0), 0)
},
TimeSpan.Zero);
Assert.True(await middleware.TryServeFromCacheAsync(context));
Assert.Equal(1, cache.GetCount);
TestUtils.AssertLoggedMessages(
sink.Writes,
LoggedMessage.NotModifiedServed);
}
