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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/compositorworker/AnimationWorkletThread.h"
#include "bindings/core/v8/ScriptSourceCode.h"
#include "bindings/core/v8/SourceLocation.h"
#include "bindings/core/v8/V8GCController.h"
#include "bindings/core/v8/WorkerOrWorkletScriptController.h"
#include "core/inspector/ConsoleMessage.h"
#include "core/workers/InProcessWorkerObjectProxy.h"
#include "core/workers/ParentFrameTaskRunners.h"
#include "core/workers/WorkerBackingThread.h"
#include "core/workers/WorkerLoaderProxy.h"
#include "core/workers/WorkerOrWorkletGlobalScope.h"
#include "core/workers/WorkerThreadStartupData.h"
#include "platform/CrossThreadFunctional.h"
#include "platform/WaitableEvent.h"
#include "platform/WebThreadSupportingGC.h"
#include "platform/heap/Handle.h"
#include "platform/testing/TestingPlatformSupport.h"
#include "platform/testing/UnitTestHelpers.h"
#include "public/platform/Platform.h"
#include "public/platform/WebAddressSpace.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "wtf/PtrUtil.h"
#include <memory>
namespace blink {
namespace {
// A null WorkerReportingProxy, supplied when creating AnimationWorkletThreads.
class TestAnimationWorkletReportingProxy : public WorkerReportingProxy {
public:
static std::unique_ptr<TestAnimationWorkletReportingProxy> create() {
return WTF::wrapUnique(new TestAnimationWorkletReportingProxy());
}
// (Empty) WorkerReportingProxy implementation:
void countFeature(UseCounter::Feature) override {}
void countDeprecation(UseCounter::Feature) override {}
void reportException(const String& errorMessage,
std::unique_ptr<SourceLocation>,
int exceptionId) override {}
void reportConsoleMessage(MessageSource,
MessageLevel,
const String& message,
SourceLocation*) override {}
void postMessageToPageInspector(const String&) override {}
ParentFrameTaskRunners* getParentFrameTaskRunners() override {
return m_parentFrameTaskRunners.get();
}
void didEvaluateWorkerScript(bool success) override {}
void didCloseWorkerGlobalScope() override {}
void willDestroyWorkerGlobalScope() override {}
void didTerminateWorkerThread() override {}
private:
TestAnimationWorkletReportingProxy()
: m_parentFrameTaskRunners(ParentFrameTaskRunners::create(nullptr)) {}
Persistent<ParentFrameTaskRunners> m_parentFrameTaskRunners;
};
class AnimationWorkletTestPlatform : public TestingPlatformSupport {
public:
AnimationWorkletTestPlatform()
: m_thread(WTF::wrapUnique(m_oldPlatform->createThread("Compositor"))) {}
WebThread* compositorThread() const override { return m_thread.get(); }
WebCompositorSupport* compositorSupport() override {
return &m_compositorSupport;
}
private:
std::unique_ptr<WebThread> m_thread;
TestingCompositorSupport m_compositorSupport;
};
} // namespace
class AnimationWorkletThreadTest : public ::testing::Test {
public:
void SetUp() override {
AnimationWorkletThread::createSharedBackingThreadForTest();
m_reportingProxy = TestAnimationWorkletReportingProxy::create();
m_securityOrigin =
SecurityOrigin::create(KURL(ParsedURLString, "http://fake.url/"));
}
void TearDown() override {
AnimationWorkletThread::clearSharedBackingThread();
}
std::unique_ptr<AnimationWorkletThread> createAnimationWorkletThread() {
std::unique_ptr<AnimationWorkletThread> thread =
AnimationWorkletThread::create(nullptr, *m_reportingProxy);
thread->start(WorkerThreadStartupData::create(
KURL(ParsedURLString, "http://fake.url/"), "fake user agent", "",
nullptr, DontPauseWorkerGlobalScopeOnStart, nullptr, "",
m_securityOrigin.get(), nullptr, WebAddressSpaceLocal, nullptr, nullptr,
WorkerV8Settings::Default()));
return thread;
}
// Attempts to run some simple script for |thread|.
void checkWorkletCanExecuteScript(WorkerThread* thread) {
std::unique_ptr<WaitableEvent> waitEvent = WTF::makeUnique<WaitableEvent>();
thread->workerBackingThread().backingThread().postTask(
BLINK_FROM_HERE,
crossThreadBind(&AnimationWorkletThreadTest::executeScriptInWorklet,
crossThreadUnretained(this),
crossThreadUnretained(thread),
crossThreadUnretained(waitEvent.get())));
waitEvent->wait();
}
private:
void executeScriptInWorklet(WorkerThread* thread, WaitableEvent* waitEvent) {
WorkerOrWorkletScriptController* scriptController =
thread->globalScope()->scriptController();
scriptController->evaluate(ScriptSourceCode("var counter = 0; ++counter;"));
waitEvent->signal();
}
RefPtr<SecurityOrigin> m_securityOrigin;
std::unique_ptr<WorkerReportingProxy> m_reportingProxy;
ScopedTestingPlatformSupport<AnimationWorkletTestPlatform> m_platform;
};
TEST_F(AnimationWorkletThreadTest, Basic) {
ScopedTestingPlatformSupport<AnimationWorkletTestPlatform> platform;
std::unique_ptr<AnimationWorkletThread> worklet =
createAnimationWorkletThread();
checkWorkletCanExecuteScript(worklet.get());
worklet->terminateAndWait();
}
// Tests that the same WebThread is used for new worklets if the WebThread is
// still alive.
TEST_F(AnimationWorkletThreadTest, CreateSecondAndTerminateFirst) {
// Create the first worklet and wait until it is initialized.
std::unique_ptr<AnimationWorkletThread> firstWorklet =
createAnimationWorkletThread();
WebThreadSupportingGC* firstThread =
&firstWorklet->workerBackingThread().backingThread();
checkWorkletCanExecuteScript(firstWorklet.get());
v8::Isolate* firstIsolate = firstWorklet->isolate();
ASSERT_TRUE(firstIsolate);
// Create the second worklet and immediately destroy the first worklet.
std::unique_ptr<AnimationWorkletThread> secondWorklet =
createAnimationWorkletThread();
// We don't use terminateAndWait here to avoid forcible termination.
firstWorklet->terminate();
firstWorklet->waitForShutdownForTesting();
// Wait until the second worklet is initialized. Verify that the second
// worklet is using the same thread and Isolate as the first worklet.
WebThreadSupportingGC* secondThread =
&secondWorklet->workerBackingThread().backingThread();
ASSERT_EQ(firstThread, secondThread);
v8::Isolate* secondIsolate = secondWorklet->isolate();
ASSERT_TRUE(secondIsolate);
EXPECT_EQ(firstIsolate, secondIsolate);
// Verify that the worklet can still successfully execute script.
checkWorkletCanExecuteScript(secondWorklet.get());
secondWorklet->terminateAndWait();
}
// Tests that a new WebThread is created if all existing worklets are
// terminated before a new worklet is created.
TEST_F(AnimationWorkletThreadTest, TerminateFirstAndCreateSecond) {
// Create the first worklet, wait until it is initialized, and terminate it.
std::unique_ptr<AnimationWorkletThread> worklet =
createAnimationWorkletThread();
WebThreadSupportingGC* firstThread =
&worklet->workerBackingThread().backingThread();
checkWorkletCanExecuteScript(worklet.get());
// We don't use terminateAndWait here to avoid forcible termination.
worklet->terminate();
worklet->waitForShutdownForTesting();
// Create the second worklet. The backing thread is same.
worklet = createAnimationWorkletThread();
WebThreadSupportingGC* secondThread =
&worklet->workerBackingThread().backingThread();
EXPECT_EQ(firstThread, secondThread);
checkWorkletCanExecuteScript(worklet.get());
worklet->terminateAndWait();
}
// Tests that v8::Isolate and WebThread are correctly set-up if a worklet is
// created while another is terminating.
TEST_F(AnimationWorkletThreadTest, CreatingSecondDuringTerminationOfFirst) {
std::unique_ptr<AnimationWorkletThread> firstWorklet =
createAnimationWorkletThread();
checkWorkletCanExecuteScript(firstWorklet.get());
v8::Isolate* firstIsolate = firstWorklet->isolate();
ASSERT_TRUE(firstIsolate);
// Request termination of the first worklet and create the second worklet
// as soon as possible.
firstWorklet->terminate();
// We don't wait for its termination.
// Note: We rely on the assumption that the termination steps don't run
// on the worklet thread so quickly. This could be a source of flakiness.
std::unique_ptr<AnimationWorkletThread> secondWorklet =
createAnimationWorkletThread();
v8::Isolate* secondIsolate = secondWorklet->isolate();
ASSERT_TRUE(secondIsolate);
EXPECT_EQ(firstIsolate, secondIsolate);
// Verify that the isolate can run some scripts correctly in the second
// worklet.
checkWorkletCanExecuteScript(secondWorklet.get());
secondWorklet->terminateAndWait();
}
} // namespace blink
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