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v8/test/cctest/cctest.h
Bill Budge 0eb28cd5b9 [cctest] Simplify tests that mock v8::Platform. 
Adds a base class TestPlatform which implements the most common defaults
for v8::Platform methods.

Reworks existing cctests and unittests to use TestPlatform.

Bug: 
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_chromium_rel_ng
Change-Id: Ifeb28a5a190529697d5bcac227e80b10d454d9bd
Reviewed-on: https://chromium-review.googlesource.com/590194
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Bill Budge <bbudge@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47050}
2017-08-01 17:06:13 +00:00

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// Copyright 2008 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CCTEST_H_
#define CCTEST_H_
#include <memory>
#include "include/libplatform/libplatform.h"
#include "include/v8-platform.h"
#include "src/debug/debug-interface.h"
#include "src/flags.h"
#include "src/utils.h"
#include "src/v8.h"
#include "src/zone/accounting-allocator.h"
namespace v8 {
namespace base {
class RandomNumberGenerator;
} // namespace base
namespace internal {
class HandleScope;
class Zone;
} // namespace internal
} // namespace v8
#ifndef TEST
#define TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, true, true); \
static void Test##Name()
#endif
#ifndef UNINITIALIZED_TEST
#define UNINITIALIZED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, true, false); \
static void Test##Name()
#endif
#ifndef DISABLED_TEST
#define DISABLED_TEST(Name) \
static void Test##Name(); \
CcTest register_test_##Name(Test##Name, __FILE__, #Name, false, true); \
static void Test##Name()
#endif
#define EXTENSION_LIST(V) \
V(GC_EXTENSION, "v8/gc") \
V(PRINT_EXTENSION, "v8/print") \
V(PROFILER_EXTENSION, "v8/profiler") \
V(TRACE_EXTENSION, "v8/trace")
#define DEFINE_EXTENSION_ID(Name, Ident) Name##_ID,
enum CcTestExtensionIds {
EXTENSION_LIST(DEFINE_EXTENSION_ID)
kMaxExtensions
};
#undef DEFINE_EXTENSION_ID
typedef v8::internal::EnumSet<CcTestExtensionIds> CcTestExtensionFlags;
#define DEFINE_EXTENSION_FLAG(Name, Ident) \
static const CcTestExtensionFlags Name(1 << Name##_ID);
static const CcTestExtensionFlags NO_EXTENSIONS(0);
static const CcTestExtensionFlags ALL_EXTENSIONS((1 << kMaxExtensions) - 1);
EXTENSION_LIST(DEFINE_EXTENSION_FLAG)
#undef DEFINE_EXTENSION_FLAG
class CcTest {
public:
typedef void (TestFunction)();
CcTest(TestFunction* callback, const char* file, const char* name,
bool enabled, bool initialize);
~CcTest() { i::DeleteArray(file_); }
void Run();
static CcTest* last() { return last_; }
CcTest* prev() { return prev_; }
const char* file() { return file_; }
const char* name() { return name_; }
bool enabled() { return enabled_; }
static v8::Isolate* isolate() {
CHECK(isolate_ != NULL);
v8::base::Relaxed_Store(&isolate_used_, 1);
return isolate_;
}
static i::Isolate* InitIsolateOnce() {
if (!initialize_called_) InitializeVM();
return i_isolate();
}
static i::Isolate* i_isolate() {
return reinterpret_cast<i::Isolate*>(isolate());
}
static i::Heap* heap();
static void CollectGarbage(i::AllocationSpace space);
static void CollectAllGarbage();
static void CollectAllGarbage(int flags);
static void CollectAllAvailableGarbage();
static v8::base::RandomNumberGenerator* random_number_generator();
static v8::Local<v8::Object> global();
static v8::ArrayBuffer::Allocator* array_buffer_allocator() {
return allocator_;
}
static void set_array_buffer_allocator(
v8::ArrayBuffer::Allocator* allocator) {
allocator_ = allocator;
}
// TODO(dcarney): Remove.
// This must be called first in a test.
static void InitializeVM();
// Only for UNINITIALIZED_TESTs
static void DisableAutomaticDispose();
// Helper function to configure a context.
// Must be in a HandleScope.
static v8::Local<v8::Context> NewContext(
CcTestExtensionFlags extensions,
v8::Isolate* isolate = CcTest::isolate());
static void TearDown();
private:
friend int main(int argc, char** argv);
TestFunction* callback_;
const char* file_;
const char* name_;
bool enabled_;
bool initialize_;
CcTest* prev_;
static CcTest* last_;
static v8::ArrayBuffer::Allocator* allocator_;
static v8::Isolate* isolate_;
static bool initialize_called_;
static v8::base::Atomic32 isolate_used_;
};
// Switches between all the Api tests using the threading support.
// In order to get a surprising but repeatable pattern of thread
// switching it has extra semaphores to control the order in which
// the tests alternate, not relying solely on the big V8 lock.
//
// A test is augmented with calls to ApiTestFuzzer::Fuzz() in its
// callbacks. This will have no effect when we are not running the
// thread fuzzing test. In the thread fuzzing test it will
// pseudorandomly select a successor thread and switch execution
// to that thread, suspending the current test.
class ApiTestFuzzer: public v8::base::Thread {
public:
void CallTest();
// The ApiTestFuzzer is also a Thread, so it has a Run method.
virtual void Run();
enum PartOfTest {
FIRST_PART,
SECOND_PART,
THIRD_PART,
FOURTH_PART,
FIFTH_PART,
SIXTH_PART,
SEVENTH_PART,
EIGHTH_PART,
LAST_PART = EIGHTH_PART
};
static void SetUp(PartOfTest part);
static void RunAllTests();
static void TearDown();
// This method switches threads if we are running the Threading test.
// Otherwise it does nothing.
static void Fuzz();
private:
explicit ApiTestFuzzer(int num)
: Thread(Options("ApiTestFuzzer")),
test_number_(num),
gate_(0),
active_(true) {}
~ApiTestFuzzer() {}
static bool fuzzing_;
static int tests_being_run_;
static int current_;
static int active_tests_;
static bool NextThread();
int test_number_;
v8::base::Semaphore gate_;
bool active_;
void ContextSwitch();
static int GetNextTestNumber();
static v8::base::Semaphore all_tests_done_;
};
#define THREADED_TEST(Name) \
static void Test##Name(); \
RegisterThreadedTest register_##Name(Test##Name, #Name); \
/* */ TEST(Name)
class RegisterThreadedTest {
public:
explicit RegisterThreadedTest(CcTest::TestFunction* callback,
const char* name)
: fuzzer_(NULL), callback_(callback), name_(name) {
prev_ = first_;
first_ = this;
count_++;
}
static int count() { return count_; }
static RegisterThreadedTest* nth(int i) {
CHECK(i < count());
RegisterThreadedTest* current = first_;
while (i > 0) {
i--;
current = current->prev_;
}
return current;
}
CcTest::TestFunction* callback() { return callback_; }
ApiTestFuzzer* fuzzer_;
const char* name() { return name_; }
private:
static RegisterThreadedTest* first_;
static int count_;
CcTest::TestFunction* callback_;
RegisterThreadedTest* prev_;
const char* name_;
};
// A LocalContext holds a reference to a v8::Context.
class LocalContext {
public:
LocalContext(v8::Isolate* isolate, v8::ExtensionConfiguration* extensions = 0,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>()) {
Initialize(isolate, extensions, global_template, global_object);
}
LocalContext(v8::ExtensionConfiguration* extensions = 0,
v8::Local<v8::ObjectTemplate> global_template =
v8::Local<v8::ObjectTemplate>(),
v8::Local<v8::Value> global_object = v8::Local<v8::Value>()) {
Initialize(CcTest::isolate(), extensions, global_template, global_object);
}
virtual ~LocalContext();
v8::Context* operator->() {
return *reinterpret_cast<v8::Context**>(&context_);
}
v8::Context* operator*() { return operator->(); }
bool IsReady() { return !context_.IsEmpty(); }
v8::Local<v8::Context> local() {
return v8::Local<v8::Context>::New(isolate_, context_);
}
private:
void Initialize(v8::Isolate* isolate, v8::ExtensionConfiguration* extensions,
v8::Local<v8::ObjectTemplate> global_template,
v8::Local<v8::Value> global_object);
v8::Persistent<v8::Context> context_;
v8::Isolate* isolate_;
};
static inline uint16_t* AsciiToTwoByteString(const char* source) {
int array_length = i::StrLength(source) + 1;
uint16_t* converted = i::NewArray<uint16_t>(array_length);
for (int i = 0; i < array_length; i++) converted[i] = source[i];
return converted;
}
static inline v8::Local<v8::Value> v8_num(double x) {
return v8::Number::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::Integer> v8_int(int32_t x) {
return v8::Integer::New(v8::Isolate::GetCurrent(), x);
}
static inline v8::Local<v8::String> v8_str(const char* x) {
return v8::String::NewFromUtf8(v8::Isolate::GetCurrent(), x,
v8::NewStringType::kNormal)
.ToLocalChecked();
}
static inline v8::Local<v8::String> v8_str(v8::Isolate* isolate,
const char* x) {
return v8::String::NewFromUtf8(isolate, x, v8::NewStringType::kNormal)
.ToLocalChecked();
}
static inline v8::Local<v8::Symbol> v8_symbol(const char* name) {
return v8::Symbol::New(v8::Isolate::GetCurrent(), v8_str(name));
}
static inline v8::Local<v8::Script> v8_compile(v8::Local<v8::String> x) {
v8::Local<v8::Script> result;
if (v8::Script::Compile(v8::Isolate::GetCurrent()->GetCurrentContext(), x)
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Script>();
}
static inline v8::Local<v8::Script> v8_compile(const char* x) {
return v8_compile(v8_str(x));
}
static inline int32_t v8_run_int32value(v8::Local<v8::Script> script) {
v8::Local<v8::Context> context = CcTest::isolate()->GetCurrentContext();
return script->Run(context).ToLocalChecked()->Int32Value(context).FromJust();
}
static inline v8::Local<v8::Script> CompileWithOrigin(
v8::Local<v8::String> source, v8::Local<v8::String> origin_url) {
v8::ScriptOrigin origin(origin_url);
v8::ScriptCompiler::Source script_source(source, origin);
return v8::ScriptCompiler::Compile(
v8::Isolate::GetCurrent()->GetCurrentContext(), &script_source)
.ToLocalChecked();
}
static inline v8::Local<v8::Script> CompileWithOrigin(
v8::Local<v8::String> source, const char* origin_url) {
return CompileWithOrigin(source, v8_str(origin_url));
}
static inline v8::Local<v8::Script> CompileWithOrigin(const char* source,
const char* origin_url) {
return CompileWithOrigin(v8_str(source), v8_str(origin_url));
}
// Helper functions that compile and run the source.
static inline v8::MaybeLocal<v8::Value> CompileRun(
v8::Local<v8::Context> context, const char* source) {
return v8::Script::Compile(context, v8_str(source))
.ToLocalChecked()
->Run(context);
}
static inline v8::Local<v8::Value> CompileRunChecked(v8::Isolate* isolate,
const char* source) {
v8::Local<v8::String> source_string =
v8::String::NewFromUtf8(isolate, source, v8::NewStringType::kNormal)
.ToLocalChecked();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::Local<v8::Script> script =
v8::Script::Compile(context, source_string).ToLocalChecked();
return script->Run(context).ToLocalChecked();
}
static inline v8::Local<v8::Value> CompileRun(v8::Local<v8::String> source) {
v8::Local<v8::Value> result;
if (v8_compile(source)
->Run(v8::Isolate::GetCurrent()->GetCurrentContext())
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Value>();
}
// Helper functions that compile and run the source.
static inline v8::Local<v8::Value> CompileRun(const char* source) {
return CompileRun(v8_str(source));
}
static inline v8::Local<v8::Value> CompileRun(
v8::Local<v8::Context> context, v8::ScriptCompiler::Source* script_source,
v8::ScriptCompiler::CompileOptions options) {
v8::Local<v8::Value> result;
if (v8::ScriptCompiler::Compile(context, script_source, options)
.ToLocalChecked()
->Run(context)
.ToLocal(&result)) {
return result;
}
return v8::Local<v8::Value>();
}
static inline v8::Local<v8::Value> ParserCacheCompileRun(const char* source) {
// Compile once just to get the preparse data, then compile the second time
// using the data.
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptCompiler::Source script_source(v8_str(source));
v8::ScriptCompiler::Compile(context, &script_source,
v8::ScriptCompiler::kProduceParserCache)
.ToLocalChecked();
// Check whether we received cached data, and if so use it.
v8::ScriptCompiler::CompileOptions options =
script_source.GetCachedData() ? v8::ScriptCompiler::kConsumeParserCache
: v8::ScriptCompiler::kNoCompileOptions;
return CompileRun(context, &script_source, options);
}
// Helper functions that compile and run the source with given origin.
static inline v8::Local<v8::Value> CompileRunWithOrigin(const char* source,
const char* origin_url,
int line_number,
int column_number) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptOrigin origin(v8_str(origin_url),
v8::Integer::New(isolate, line_number),
v8::Integer::New(isolate, column_number));
v8::ScriptCompiler::Source script_source(v8_str(source), origin);
return CompileRun(context, &script_source,
v8::ScriptCompiler::CompileOptions());
}
static inline v8::Local<v8::Value> CompileRunWithOrigin(
v8::Local<v8::String> source, const char* origin_url) {
v8::Isolate* isolate = v8::Isolate::GetCurrent();
v8::Local<v8::Context> context = isolate->GetCurrentContext();
v8::ScriptCompiler::Source script_source(
source, v8::ScriptOrigin(v8_str(origin_url)));
return CompileRun(context, &script_source,
v8::ScriptCompiler::CompileOptions());
}
static inline v8::Local<v8::Value> CompileRunWithOrigin(
const char* source, const char* origin_url) {
return CompileRunWithOrigin(v8_str(source), origin_url);
}
static inline void ExpectString(const char* code, const char* expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsString());
v8::String::Utf8Value utf8(result);
CHECK_EQ(0, strcmp(expected, *utf8));
}
static inline void ExpectInt32(const char* code, int expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsInt32());
CHECK_EQ(expected,
result->Int32Value(v8::Isolate::GetCurrent()->GetCurrentContext())
.FromJust());
}
static inline void ExpectBoolean(const char* code, bool expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsBoolean());
CHECK_EQ(expected,
result->BooleanValue(v8::Isolate::GetCurrent()->GetCurrentContext())
.FromJust());
}
static inline void ExpectTrue(const char* code) {
ExpectBoolean(code, true);
}
static inline void ExpectFalse(const char* code) {
ExpectBoolean(code, false);
}
static inline void ExpectObject(const char* code,
v8::Local<v8::Value> expected) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->SameValue(expected));
}
static inline void ExpectUndefined(const char* code) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsUndefined());
}
static inline void ExpectNull(const char* code) {
v8::Local<v8::Value> result = CompileRun(code);
CHECK(result->IsNull());
}
static inline void CheckDoubleEquals(double expected, double actual) {
const double kEpsilon = 1e-10;
CHECK_LE(expected, actual + kEpsilon);
CHECK_GE(expected, actual - kEpsilon);
}
static v8::debug::DebugDelegate dummy_delegate;
static inline void EnableDebugger(v8::Isolate* isolate) {
v8::debug::SetDebugDelegate(isolate, &dummy_delegate);
}
static inline void DisableDebugger(v8::Isolate* isolate) {
v8::debug::SetDebugDelegate(isolate, nullptr);
}
static inline void EmptyMessageQueues(v8::Isolate* isolate) {
while (v8::platform::PumpMessageLoop(v8::internal::V8::GetCurrentPlatform(),
isolate)) {
}
}
class InitializedHandleScopeImpl;
class InitializedHandleScope {
public:
InitializedHandleScope();
~InitializedHandleScope();
// Prefixing the below with main_ reduces a lot of naming clashes.
i::Isolate* main_isolate() { return main_isolate_; }
private:
i::Isolate* main_isolate_;
std::unique_ptr<InitializedHandleScopeImpl> initialized_handle_scope_impl_;
};
class HandleAndZoneScope : public InitializedHandleScope {
public:
HandleAndZoneScope();
~HandleAndZoneScope();
// Prefixing the below with main_ reduces a lot of naming clashes.
i::Zone* main_zone() { return main_zone_.get(); }
private:
v8::internal::AccountingAllocator allocator_;
std::unique_ptr<i::Zone> main_zone_;
};
class StaticOneByteResource : public v8::String::ExternalOneByteStringResource {
public:
explicit StaticOneByteResource(const char* data) : data_(data) {}
~StaticOneByteResource() {}
const char* data() const { return data_; }
size_t length() const { return strlen(data_); }
private:
const char* data_;
};
class ManualGCScope {
public:
ManualGCScope()
: flag_concurrent_marking_(i::FLAG_concurrent_marking),
flag_concurrent_sweeping_(i::FLAG_concurrent_sweeping),
flag_stress_incremental_marking_(i::FLAG_stress_incremental_marking) {
i::FLAG_concurrent_marking = false;
i::FLAG_concurrent_sweeping = false;
i::FLAG_stress_incremental_marking = false;
}
~ManualGCScope() {
i::FLAG_concurrent_marking = flag_concurrent_marking_;
i::FLAG_concurrent_sweeping = flag_concurrent_sweeping_;
i::FLAG_stress_incremental_marking = flag_stress_incremental_marking_;
}
private:
bool flag_concurrent_marking_;
bool flag_concurrent_sweeping_;
bool flag_stress_incremental_marking_;
};
// This is an abstract base class that can be overridden to implement a test
// platform. It delegates all operations to a given platform at the time
// of construction.
class TestPlatform : public v8::Platform {
public:
// v8::Platform implementation.
void OnCriticalMemoryPressure() override {
old_platform_->OnCriticalMemoryPressure();
}
void CallOnBackgroundThread(v8::Task* task,
ExpectedRuntime expected_runtime) override {
old_platform_->CallOnBackgroundThread(task, expected_runtime);
}
void CallOnForegroundThread(v8::Isolate* isolate, v8::Task* task) override {
old_platform_->CallOnForegroundThread(isolate, task);
}
void CallDelayedOnForegroundThread(v8::Isolate* isolate, v8::Task* task,
double delay_in_seconds) override {
old_platform_->CallDelayedOnForegroundThread(isolate, task,
delay_in_seconds);
}
double MonotonicallyIncreasingTime() override {
return old_platform_->MonotonicallyIncreasingTime();
}
void CallIdleOnForegroundThread(v8::Isolate* isolate,
v8::IdleTask* task) override {
old_platform_->CallIdleOnForegroundThread(isolate, task);
}
bool IdleTasksEnabled(v8::Isolate* isolate) override {
return old_platform_->IdleTasksEnabled(isolate);
}
v8::TracingController* GetTracingController() override {
return old_platform_->GetTracingController();
}
protected:
TestPlatform() : old_platform_(i::V8::GetCurrentPlatform()) {}
~TestPlatform() { i::V8::SetPlatformForTesting(old_platform_); }
v8::Platform* old_platform() const { return old_platform_; }
private:
v8::Platform* old_platform_;
DISALLOW_COPY_AND_ASSIGN(TestPlatform);
};
#endif // ifndef CCTEST_H_
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