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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_UNITTESTS_HEAP_CPPGC_TESTS_H_
#define V8_UNITTESTS_HEAP_CPPGC_TESTS_H_
#include "include/cppgc/heap-consistency.h"
#include "include/cppgc/heap.h"
#include "include/cppgc/platform.h"
#include "src/heap/cppgc/heap.h"
#include "src/heap/cppgc/trace-event.h"
#include "test/unittests/heap/cppgc/test-platform.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cppgc {
namespace internal {
namespace testing {
class DelegatingTracingController : public TracingController {
public:
#if !defined(V8_USE_PERFETTO)
const uint8_t* GetCategoryGroupEnabled(const char* name) override {
static uint8_t yes = 1;
return &yes;
}
uint64_t AddTraceEvent(
char phase, const uint8_t* category_enabled_flag, const char* name,
const char* scope, uint64_t id, uint64_t bind_id, int32_t num_args,
const char** arg_names, const uint8_t* arg_types,
const uint64_t* arg_values,
std::unique_ptr<ConvertableToTraceFormat>* arg_convertables,
unsigned int flags) override {
return tracing_controller_->AddTraceEvent(
phase, category_enabled_flag, name, scope, id, bind_id, num_args,
arg_names, arg_types, arg_values, arg_convertables, flags);
}
#endif // !defined(V8_USE_PERFETTO)
void SetTracingController(
std::unique_ptr<TracingController> tracing_controller_impl) {
tracing_controller_ = std::move(tracing_controller_impl);
}
private:
std::unique_ptr<TracingController> tracing_controller_ =
std::make_unique<TracingController>();
};
class TestWithPlatform : public ::testing::Test {
public:
static void SetUpTestSuite();
static void TearDownTestSuite();
TestPlatform& GetPlatform() const { return *platform_; }
std::shared_ptr<TestPlatform> GetPlatformHandle() const { return platform_; }
void SetTracingController(
std::unique_ptr<TracingController> tracing_controller_impl) {
static_cast<DelegatingTracingController*>(platform_->GetTracingController())
->SetTracingController(std::move(tracing_controller_impl));
}
protected:
static std::shared_ptr<TestPlatform> platform_;
};
class TestWithHeap : public TestWithPlatform {
public:
TestWithHeap();
~TestWithHeap() override;
void PreciseGC() {
heap_->ForceGarbageCollectionSlow(
::testing::UnitTest::GetInstance()->current_test_info()->name(),
"Testing", cppgc::Heap::StackState::kNoHeapPointers);
}
void ConservativeGC() {
heap_->ForceGarbageCollectionSlow(
::testing::UnitTest::GetInstance()->current_test_info()->name(),
"Testing", cppgc::Heap::StackState::kMayContainHeapPointers);
}
// GC that also discards unused memory and thus changes the resident size
// size of the heap and corresponding pages.
void ConservativeMemoryDiscardingGC() {
internal::Heap::From(GetHeap())->CollectGarbage(
{CollectionType::kMajor, Heap::StackState::kMayContainHeapPointers,
cppgc::Heap::MarkingType::kAtomic, cppgc::Heap::SweepingType::kAtomic,
GCConfig::FreeMemoryHandling::kDiscardWherePossible});
}
cppgc::Heap* GetHeap() const { return heap_.get(); }
cppgc::AllocationHandle& GetAllocationHandle() const {
return allocation_handle_;
}
cppgc::HeapHandle& GetHeapHandle() const {
return GetHeap()->GetHeapHandle();
}
std::unique_ptr<MarkerBase>& GetMarkerRef() {
return Heap::From(GetHeap())->GetMarkerRefForTesting();
}
void ResetLinearAllocationBuffers();
private:
std::unique_ptr<cppgc::Heap> heap_;
cppgc::AllocationHandle& allocation_handle_;
};
// Restrictive test fixture that supports allocation but will make sure no
// garbage collection is triggered. This is useful for writing idiomatic
// tests where object are allocated on the managed heap while still avoiding
// far reaching test consequences of full garbage collection calls.
class TestSupportingAllocationOnly : public TestWithHeap {
protected:
TestSupportingAllocationOnly();
private:
subtle::NoGarbageCollectionScope no_gc_scope_;
};
} // namespace testing
} // namespace internal
} // namespace cppgc
#endif // V8_UNITTESTS_HEAP_CPPGC_TESTS_H_
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