private async Task AddToEmptyCacheAsync(bool contentIsDeterministic)
{
string testCacheId = "Disconnected";
ICache testCache = await InitializeCacheAsync(NewCache(testCacheId, false)).SuccessAsync();
VerticalCacheAggregator vertCache = testCache as VerticalCacheAggregator;
XAssert.IsNotNull(vertCache);
CacheDeterminism localDeterminism = CacheDeterminism.None;
if (contentIsDeterministic)
{
localDeterminism = CacheDeterminism.Tool;
}
CacheDeterminism initialDeterminism = contentIsDeterministic ? CacheDeterminism.Tool : CacheDeterminism.None;
ICacheSession session = (await testCache.CreateSessionAsync()).Success();
VerticalCacheAggregatorSession vertSession = session as VerticalCacheAggregatorSession;
XAssert.IsNotNull(vertSession);
CallbackCacheSessionWrapper wrappedSession = vertSession.RemoteSession as CallbackCacheSessionWrapper;
XAssert.IsNotNull(wrappedSession);
PoisonSession(wrappedSession);
DisconnectRemoteCache(testCache);
FullCacheRecord cacheRecord = await FakeBuild.DoPipAsync(session, "TestPip", determinism: initialDeterminism);
await VerticalAggregatorBaseTests.ValidateItemsInCacheAsync(
vertCache.LocalCache,
cacheRecord.StrongFingerprint.WeakFingerprint,
new List <CasHash>(cacheRecord.CasEntries),
localDeterminism,
cacheRecord.StrongFingerprint.CasElement,
vertCache.LocalCache.CacheId,
1);
await VerticalAggregatorBaseTests.ValidateItemsInCacheAsync(
vertCache.RemoteCache,
cacheRecord.StrongFingerprint.WeakFingerprint,
new List <CasHash>(cacheRecord.CasEntries),
localDeterminism,
cacheRecord.StrongFingerprint.CasElement,
vertCache.RemoteCache.CacheId,
0);
XAssert.IsTrue((await testCache.ShutdownAsync()).Succeeded);
}
public async Task NoItemFingerprint()
{
const string TestName = nameof(NoItemFingerprint);
string testCacheId = MakeCacheId(TestName);
ICache cache = await CreateCacheAsync(testCacheId);
// Now for the session (which we base on the cache ID)
string testSessionId = "Session1-" + testCacheId;
ICacheSession session = await CreateSessionAsync(cache, testSessionId);
// Note that we will be making a new fingerprint with a CasHash of NoItem
// without pre-sending it as NoItem is a special case - it is nothing
FullCacheRecord record = await FakeBuild.DoPipAsync(session, TestName);
// We place this in and did not pin the NoItem yet or even send it around
// Note that this also is doing a zero-length CasEntries
var strong = new StrongFingerprint(record.StrongFingerprint.WeakFingerprint, CasHash.NoItem, new Hash(FingerprintUtilities.ZeroFingerprint), TestName);
FullCacheRecordWithDeterminism oldRecord = (await session.AddOrGetAsync(
strong.WeakFingerprint,
strong.CasElement,
strong.HashElement,
CasEntries.FromCasHashes())).Success("Should work even though I did not pin CasHash.NoItem, instead it failed with {0}");
XAssert.IsNull(oldRecord.Record, "Should have been the first one like this");
var result = await session.GetCacheEntryAsync(strong).SuccessAsync();
XAssert.AreEqual(0, result.Count, "We should have gotten a zero-length CasEntries");
// We place this in and did not pin the NoItem yet or even send it around
// Note that this does an array of NoItem CasEntries and use the
// record.CasElement as the weak fingerprint
CasHash[] empties = { CasHash.NoItem, CasHash.NoItem, CasHash.NoItem };
strong = new StrongFingerprint(new WeakFingerprintHash(strong.CasElement.ToFingerprint()), CasHash.NoItem, new Hash(FingerprintUtilities.ZeroFingerprint), TestName);
oldRecord = (await session.AddOrGetAsync(
strong.WeakFingerprint,
CasHash.NoItem,
new Hash(FingerprintUtilities.ZeroFingerprint),
empties)).Success("Should work even though I did not pin CasHash.NoItem, instead it failed with {0}");
XAssert.IsNull(oldRecord.Record, "Should have been the first one like this");
result = await session.GetCacheEntryAsync(strong).SuccessAsync();
XAssert.AreEqual(empties, result, "We should have gotten the set of empties");
await CloseSessionAsync(session, testSessionId);
await ShutdownCacheAsync(cache, testCacheId);
}
/// <summary>
/// Execute a fake build based on this pip definition into the given cache session
/// </summary>
/// <param name="session">The cache session to use</param>
/// <returns>The FullCacheRecord of the build operation</returns>
public async Task <FullCacheRecord> BuildAsync(ICacheSession session)
{
Contract.Requires(session != null);
FullCacheRecord record = await FakeBuild.DoPipAsync(
session,
pipName : PipName,
pipSize : PipSize,
weakIndex : WeakIndex,
hashIndex : HashIndex,
determinism : Determinism);
if (Determinism.IsDeterministicTool)
{
XAssert.IsTrue(record.CasEntries.Determinism.IsDeterministicTool, "Tool was supposed to be deterministic");
}
return(record);
}
public async Task CacheDataPersistedReadOnlyCache()
{
string testName = "CacheDataPersistedReadOnly";
ICache firstInvocation = await CreateCacheAsync(testName, true);
Guid originalGuid = firstInvocation.CacheGuid;
ICacheSession session = (await firstInvocation.CreateSessionAsync("sessionName")).Success();
FullCacheRecord cacheRecord = await FakeBuild.DoPipAsync(session, "PipA");
(await session.CloseAsync()).Success();
await ShutdownCacheAsync(firstInvocation, testName);
ICache secondInvocation = await GetExistingCacheAsync(testName, true, true);
XAssert.AreEqual(originalGuid, secondInvocation.CacheGuid, "Persistent caches: GUID should not change");
XAssert.IsTrue(secondInvocation.IsReadOnly, "This should have been a read-only cache");
ICacheReadOnlySession newSession = (await secondInvocation.CreateReadOnlySessionAsync()).Success();
int fingerprintsFound = 0;
foreach (var singleFingerprint in newSession.EnumerateStrongFingerprints(cacheRecord.StrongFingerprint.WeakFingerprint))
{
var sfp = (await singleFingerprint).Success();
XAssert.AreEqual(cacheRecord.StrongFingerprint, sfp, "Fingerprints must match");
fingerprintsFound++;
}
XAssert.AreEqual(1, fingerprintsFound, "A single instance of the fingerprint should have been found after restarting the cache.");
(await newSession.CloseAsync()).Success();
await ShutdownCacheAsync(secondInvocation, testName);
}
public virtual async Task ReadOnlyRemoteIsNotUpdatedWhenDisconnected()
{
string testCacheId = "Disconnected";
ICache testCache = await InitializeCacheAsync(NewCache(testCacheId, false)).SuccessAsync();
VerticalCacheAggregator vertCache = testCache as VerticalCacheAggregator;
XAssert.IsNotNull(vertCache);
PoisonAllRemoteSessions(testCache);
DisconnectRemoteCache(testCache);
ICacheSession session = (await testCache.CreateSessionAsync()).Success();
FullCacheRecord cacheRecord = await FakeBuild.DoPipAsync(session, "TestPip");
await VerticalAggregatorBaseTests.ValidateItemsInCacheAsync(
vertCache.LocalCache,
cacheRecord.StrongFingerprint.WeakFingerprint,
new List <CasHash>(cacheRecord.CasEntries),
CacheDeterminism.None,
cacheRecord.StrongFingerprint.CasElement,
vertCache.LocalCache.CacheId,
1);
var remoteSession = await vertCache.RemoteCache.CreateReadOnlySessionAsync().SuccessAsync();
int fingerprintsReturned = 0;
foreach (var fingerprint in remoteSession.EnumerateStrongFingerprints(cacheRecord.StrongFingerprint.WeakFingerprint))
{
fingerprintsReturned++;
}
XAssert.AreEqual(0, fingerprintsReturned, "No fingerprints should have been found in the remote cache.");
AssertSuccess(await testCache.ShutdownAsync());
}
public async Task SimpleDummySession()
{
const string TestName = "SimpleSession";
string testCacheId = MakeCacheId(TestName);
ICache cache = await CreateCacheAsync(testCacheId);
// Now for the session (which we base on the cache ID)
string testSessionId = "Session1-" + testCacheId;
ICacheSession session = await CreateSessionAsync(cache, testSessionId);
// Do the default fake build for this test (first time, no cache hit)
FullCacheRecord built = await FakeBuild.DoPipAsync(session, TestName);
XAssert.AreEqual(FakeBuild.NewRecordCacheId, built.CacheId, "Should have been a new cache entry!");
// Now we see if we can get back the items we think we should
await CloseSessionAsync(session, testSessionId);
// We need a read only session to get the CasEntries
ICacheReadOnlySession readOnlySession = (await cache.CreateReadOnlySessionAsync()).Success();
// Validate that the cache contains a dummy session and it has the one cache record it needs.
HashSet <FullCacheRecord> found = new HashSet <FullCacheRecord>();
foreach (var strongFingerprintTask in cache.EnumerateSessionStrongFingerprints(MemoizationStoreAdapterCache.DummySessionName).Success().OutOfOrderTasks())
{
StrongFingerprint strongFingerprint = await strongFingerprintTask;
CasEntries casEntries = (await readOnlySession.GetCacheEntryAsync(strongFingerprint)).Success();
FullCacheRecord record = new FullCacheRecord(strongFingerprint, casEntries);
// If it is not the record we already found...
if (!found.Contains(record))
{
found.Add(record);
}
XAssert.AreEqual(1, found.Count, "There should be only 1 unique record in the session");
XAssert.AreEqual(built.StrongFingerprint.WeakFingerprint, record.StrongFingerprint.WeakFingerprint);
XAssert.AreEqual(built.StrongFingerprint.CasElement, record.StrongFingerprint.CasElement);
XAssert.AreEqual(built.StrongFingerprint.HashElement, record.StrongFingerprint.HashElement);
XAssert.AreEqual(built.CasEntries.Count, record.CasEntries.Count, "Did not return the same number of items");
XAssert.IsTrue(record.CasEntries.Equals(built.CasEntries), "Items returned are not the same hash and/or order order");
XAssert.AreEqual(built, record);
// We can not check record.CasEntries.IsDeterministic
// as the cache may have determined that they are deterministic
// via cache determinism recovery.
}
XAssert.AreEqual(1, found.Count, "There should be 1 and only 1 record in the session!");
await readOnlySession.CloseAsync().SuccessAsync();
// Check that the cache has the items in it
await FakeBuild.CheckContentsAsync(cache, built);
// Now redo the "build" with a cache hit
testSessionId = "Session2-" + testCacheId;
session = await CreateSessionAsync(cache, testSessionId);
FullCacheRecord rebuilt = await FakeBuild.DoPipAsync(session, TestName);
XAssert.AreEqual(built, rebuilt, "Should have been the same build!");
// We make sure we did get it from a cache rather than a manual rebuild.
XAssert.AreNotEqual(built.CacheId, rebuilt.CacheId, "Should not be the same cache ID");
await CloseSessionAsync(session, testSessionId);
readOnlySession = await cache.CreateReadOnlySessionAsync().SuccessAsync();
// Now that we have done the second build via a cache hit, it should produce the
// same cache record as before
foreach (var strongFingerprintTask in cache.EnumerateSessionStrongFingerprints(MemoizationStoreAdapterCache.DummySessionName).Success().OutOfOrderTasks())
{
StrongFingerprint strongFingerprint = await strongFingerprintTask;
CasEntries casEntries = (await readOnlySession.GetCacheEntryAsync(strongFingerprint)).Success();
FullCacheRecord record = new FullCacheRecord(strongFingerprint, casEntries);
XAssert.IsTrue(found.Contains(record), "Second session should produce the same cache record but did not!");
}
(await readOnlySession.CloseAsync()).Success();
await ShutdownCacheAsync(cache, testCacheId);
}