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// Copyright 2016 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 "third_party/blink/renderer/modules/webaudio/audio_worklet_thread.h"
#include <memory>
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/web_url_request.h"
#include "third_party/blink/renderer/bindings/core/v8/script_module.h"
#include "third_party/blink/renderer/bindings/core/v8/script_source_code.h"
#include "third_party/blink/renderer/bindings/core/v8/source_location.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_cache_options.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_gc_controller.h"
#include "third_party/blink/renderer/bindings/core/v8/worker_or_worklet_script_controller.h"
#include "third_party/blink/renderer/core/inspector/console_message.h"
#include "third_party/blink/renderer/core/inspector/worker_devtools_params.h"
#include "third_party/blink/renderer/core/origin_trials/origin_trial_context.h"
#include "third_party/blink/renderer/core/script/script.h"
#include "third_party/blink/renderer/core/testing/page_test_base.h"
#include "third_party/blink/renderer/core/workers/global_scope_creation_params.h"
#include "third_party/blink/renderer/core/workers/worker_backing_thread.h"
#include "third_party/blink/renderer/core/workers/worker_or_worklet_global_scope.h"
#include "third_party/blink/renderer/core/workers/worker_reporting_proxy.h"
#include "third_party/blink/renderer/core/workers/worklet_module_responses_map.h"
#include "third_party/blink/renderer/platform/cross_thread_functional.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_loader_options.h"
#include "third_party/blink/renderer/platform/testing/testing_platform_support.h"
#include "third_party/blink/renderer/platform/testing/unit_test_helpers.h"
#include "third_party/blink/renderer/platform/waitable_event.h"
#include "third_party/blink/renderer/platform/web_thread_supporting_gc.h"
#include "third_party/blink/renderer/platform/wtf/text/text_position.h"
namespace blink {
class AudioWorkletThreadTest : public PageTestBase {
public:
void SetUp() override {
AudioWorkletThread::EnsureSharedBackingThread();
PageTestBase::SetUp(IntSize());
Document* document = &GetDocument();
document->SetURL(KURL("https://example.com/"));
document->UpdateSecurityOrigin(SecurityOrigin::Create(document->Url()));
reporting_proxy_ = std::make_unique<WorkerReportingProxy>();
}
std::unique_ptr<AudioWorkletThread> CreateAudioWorkletThread() {
std::unique_ptr<AudioWorkletThread> thread =
AudioWorkletThread::Create(*reporting_proxy_);
Document* document = &GetDocument();
thread->Start(
std::make_unique<GlobalScopeCreationParams>(
document->Url(), mojom::ScriptType::kModule,
OffMainThreadWorkerScriptFetchOption::kEnabled,
document->UserAgent(), nullptr /* web_worker_fetch_context */,
Vector<CSPHeaderAndType>(), document->GetReferrerPolicy(),
document->GetSecurityOrigin(), document->IsSecureContext(),
document->GetHttpsState(), nullptr /* worker_clients */,
document->AddressSpace(),
OriginTrialContext::GetTokens(document).get(),
base::UnguessableToken::Create(), nullptr /* worker_settings */,
kV8CacheOptionsDefault,
MakeGarbageCollected<WorkletModuleResponsesMap>()),
base::nullopt, std::make_unique<WorkerDevToolsParams>(),
ParentExecutionContextTaskRunners::Create());
return thread;
}
// Attempts to run some simple script for |thread|.
void CheckWorkletCanExecuteScript(WorkerThread* thread) {
WaitableEvent wait_event;
thread->GetWorkerBackingThread().BackingThread().PostTask(
FROM_HERE,
CrossThreadBind(&AudioWorkletThreadTest::ExecuteScriptInWorklet,
CrossThreadUnretained(this),
CrossThreadUnretained(thread),
CrossThreadUnretained(&wait_event)));
wait_event.Wait();
}
private:
void ExecuteScriptInWorklet(WorkerThread* thread, WaitableEvent* wait_event) {
ScriptState* script_state =
thread->GlobalScope()->ScriptController()->GetScriptState();
EXPECT_TRUE(script_state);
ScriptState::Scope scope(script_state);
KURL js_url("https://example.com/worklet.js");
ScriptModule module = ScriptModule::Compile(
script_state->GetIsolate(), "var counter = 0; ++counter;", js_url,
js_url, ScriptFetchOptions(), TextPosition::MinimumPosition(),
ASSERT_NO_EXCEPTION);
EXPECT_FALSE(module.IsNull());
ScriptValue exception = module.Instantiate(script_state);
EXPECT_TRUE(exception.IsEmpty());
ScriptValue value = module.Evaluate(script_state);
EXPECT_TRUE(value.IsEmpty());
wait_event->Signal();
}
std::unique_ptr<WorkerReportingProxy> reporting_proxy_;
};
TEST_F(AudioWorkletThreadTest, Basic) {
std::unique_ptr<AudioWorkletThread> worklet = CreateAudioWorkletThread();
CheckWorkletCanExecuteScript(worklet.get());
worklet->Terminate();
worklet->WaitForShutdownForTesting();
}
// Tests that the same WebThread is used for new worklets if the WebThread is
// still alive.
TEST_F(AudioWorkletThreadTest, CreateSecondAndTerminateFirst) {
// Create the first worklet and wait until it is initialized.
std::unique_ptr<AudioWorkletThread> first_worklet =
CreateAudioWorkletThread();
WebThreadSupportingGC* first_thread =
&first_worklet->GetWorkerBackingThread().BackingThread();
CheckWorkletCanExecuteScript(first_worklet.get());
v8::Isolate* first_isolate = first_worklet->GetIsolate();
ASSERT_TRUE(first_isolate);
// Create the second worklet and immediately destroy the first worklet.
std::unique_ptr<AudioWorkletThread> second_worklet =
CreateAudioWorkletThread();
// We don't use terminateAndWait here to avoid forcible termination.
first_worklet->Terminate();
first_worklet->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* second_thread =
&second_worklet->GetWorkerBackingThread().BackingThread();
ASSERT_EQ(first_thread, second_thread);
v8::Isolate* second_isolate = second_worklet->GetIsolate();
ASSERT_TRUE(second_isolate);
EXPECT_EQ(first_isolate, second_isolate);
// Verify that the worklet can still successfully execute script.
CheckWorkletCanExecuteScript(second_worklet.get());
second_worklet->Terminate();
second_worklet->WaitForShutdownForTesting();
}
// Tests that a new WebThread is created if all existing worklets are
// terminated before a new worklet is created.
TEST_F(AudioWorkletThreadTest, TerminateFirstAndCreateSecond) {
// Create the first worklet, wait until it is initialized, and terminate it.
std::unique_ptr<AudioWorkletThread> worklet = CreateAudioWorkletThread();
WebThreadSupportingGC* first_thread =
&worklet->GetWorkerBackingThread().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 = CreateAudioWorkletThread();
WebThreadSupportingGC* second_thread =
&worklet->GetWorkerBackingThread().BackingThread();
EXPECT_EQ(first_thread, second_thread);
CheckWorkletCanExecuteScript(worklet.get());
worklet->Terminate();
worklet->WaitForShutdownForTesting();
}
// Tests that v8::Isolate and WebThread are correctly set-up if a worklet is
// created while another is terminating.
TEST_F(AudioWorkletThreadTest, CreatingSecondDuringTerminationOfFirst) {
std::unique_ptr<AudioWorkletThread> first_worklet =
CreateAudioWorkletThread();
CheckWorkletCanExecuteScript(first_worklet.get());
v8::Isolate* first_isolate = first_worklet->GetIsolate();
ASSERT_TRUE(first_isolate);
// Request termination of the first worklet and create the second worklet
// as soon as possible. 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.
first_worklet->Terminate();
std::unique_ptr<AudioWorkletThread> second_worklet =
CreateAudioWorkletThread();
v8::Isolate* second_isolate = second_worklet->GetIsolate();
ASSERT_TRUE(second_isolate);
EXPECT_EQ(first_isolate, second_isolate);
// Verify that the isolate can run some scripts correctly in the second
// worklet.
CheckWorkletCanExecuteScript(second_worklet.get());
second_worklet->Terminate();
second_worklet->WaitForShutdownForTesting();
}
} // namespace blink
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