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Adding basic unit test for HttpDerivedDataBackend. #rb devin.doucette [CL 16885295 by Zousar Shaker in ue5-main branch]
114 lines
3.4 KiB
C++
114 lines
3.4 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "HttpDerivedDataBackend.h"
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#include "Async/ParallelFor.h"
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#include "DerivedDataBackendInterface.h"
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#include "Misc/AutomationTest.h"
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#include "Misc/SecureHash.h"
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// Test is targeted at HttpDerivedDataBackend but with some backend test interface it could be generalized
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// to function against all backends.
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#if WITH_DEV_AUTOMATION_TESTS && WITH_HTTP_DDC_BACKEND
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#define TEST_NAME_ROOT TEXT("System.DerivedDataCache.HttpDerivedDataBackend")
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#define IMPLEMENT_HTTPDERIVEDDATA_AUTOMATION_TEST( TClass, PrettyName, TFlags ) \
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IMPLEMENT_CUSTOM_COMPLEX_AUTOMATION_TEST(TClass, FHttpDerivedDataTestBase, TEST_NAME_ROOT PrettyName, TFlags) \
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void TClass::GetTests(TArray<FString>& OutBeautifiedNames, TArray <FString>& OutTestCommands) const \
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{ \
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if (CheckPrequisites()) \
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{ \
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OutBeautifiedNames.Add(TEST_NAME_ROOT PrettyName); \
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OutTestCommands.Add(FString()); \
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} \
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}
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namespace HttpDerivedDataBackendTest
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{
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class FHttpDerivedDataTestBase : public FAutomationTestBase
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{
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public:
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FHttpDerivedDataTestBase(const FString& InName, const bool bInComplexTask)
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: FAutomationTestBase(InName, bInComplexTask)
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{
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}
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bool CheckPrequisites() const
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{
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if (UE::DerivedData::Backends::FHttpDerivedDataBackend* Backend = GetTestBackend())
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{
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if (Backend->IsUsable())
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{
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return true;
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}
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}
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return false;
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}
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protected:
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UE::DerivedData::Backends::FHttpDerivedDataBackend* GetTestBackend() const
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{
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static UE::DerivedData::Backends::FHttpDerivedDataBackend* CachedBackend = FetchTestBackend_Internal();
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return CachedBackend;
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}
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private:
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UE::DerivedData::Backends::FHttpDerivedDataBackend* FetchTestBackend_Internal() const
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{
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return UE::DerivedData::Backends::FHttpDerivedDataBackend::GetAny();
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}
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};
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IMPLEMENT_HTTPDERIVEDDATA_AUTOMATION_TEST(FConcurrentCachedDataProbablyExistsBatch, TEXT(".FHeavyConcurrentCachedDataProbablyExistsBatch"), EAutomationTestFlags::EditorContext | EAutomationTestFlags::ProductFilter)
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bool FConcurrentCachedDataProbablyExistsBatch::RunTest(const FString& Parameters)
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{
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UE::DerivedData::Backends::FHttpDerivedDataBackend* TestBackend = GetTestBackend();
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const int32 ParallelTasks = 32;
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const uint32 Iterations = 20;
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const uint32 KeysInBatch = 4;
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TArray<FString> Keys;
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TArray<uint8> KeyContents;
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KeyContents.Add(42);
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FSHA1 HashState;
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HashState.Update(KeyContents.GetData(), KeyContents.Num());
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HashState.Final();
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uint8 Hash[FSHA1::DigestSize];
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HashState.GetHash(Hash);
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const FString HashString = BytesToHex(Hash, FSHA1::DigestSize);
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for (uint32 KeyIndex = 0; KeyIndex < KeysInBatch; ++KeyIndex)
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{
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FString NewKey = FString::Printf(TEXT("__AutoTest_Dummy_%u__%s"), KeyIndex, *HashString);
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Keys.Add(NewKey);
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TestBackend->PutCachedData(*NewKey, KeyContents, false);
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}
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std::atomic<uint32> MismatchedResults = 0;
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ParallelFor(ParallelTasks,
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[&](int32 TaskIndex)
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{
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for (uint32 Iteration = 0; Iteration < Iterations; ++Iteration)
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{
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TConstArrayView<FString> BatchView = MakeArrayView(Keys.GetData(), KeysInBatch);
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TBitArray<> Result = TestBackend->CachedDataProbablyExistsBatch(BatchView);
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if (Result.CountSetBits() != BatchView.Num())
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{
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MismatchedResults.fetch_add(BatchView.Num() - Result.CountSetBits(), std::memory_order_relaxed);
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}
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}
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}
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);
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TestEqual(TEXT("Concurrent calls to CachedDataProbablyExistsBatch for a batch of keys that were put are not reliably found"), MismatchedResults, 0);
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return true;
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}
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}
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#endif // WITH_DEV_AUTOMATION_TESTS
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