// Copyright 2014 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 <stdint.h>
#include <tuple>

#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/files/scoped_temp_dir.h"
#include "base/logging.h"
#include "base/optional.h"
#include "base/run_loop.h"
#include "base/stl_util.h"
#include "base/test/test_simple_task_runner.h"
#include "base/time/time.h"
#include "content/browser/service_worker/embedded_worker_status.h"
#include "content/browser/service_worker/embedded_worker_test_helper.h"
#include "content/browser/service_worker/fake_embedded_worker_instance_client.h"
#include "content/browser/service_worker/service_worker_context_core.h"
#include "content/browser/service_worker/service_worker_context_wrapper.h"
#include "content/browser/service_worker/service_worker_disk_cache.h"
#include "content/browser/service_worker/service_worker_job_coordinator.h"
#include "content/browser/service_worker/service_worker_object_host.h"
#include "content/browser/service_worker/service_worker_registration.h"
#include "content/browser/service_worker/service_worker_registration_object_host.h"
#include "content/browser/service_worker/service_worker_registration_status.h"
#include "content/browser/service_worker/service_worker_test_utils.h"
#include "content/browser/service_worker/test_service_worker_observer.h"
#include "content/common/service_worker/service_worker_utils.h"
#include "content/public/test/test_browser_context.h"
#include "content/public/test/test_browser_thread_bundle.h"
#include "ipc/ipc_test_sink.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/base/test_completion_callback.h"
#include "net/http/http_response_headers.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/mojom/service_worker/service_worker.mojom.h"
#include "third_party/blink/public/mojom/service_worker/service_worker_event_status.mojom.h"
#include "third_party/blink/public/mojom/service_worker/service_worker_object.mojom.h"
#include "third_party/blink/public/mojom/service_worker/service_worker_registration.mojom.h"

using net::IOBuffer;
using net::TestCompletionCallback;
using net::WrappedIOBuffer;

// Unit tests for testing all job registration tasks.
namespace content {

namespace {

void SaveRegistrationCallback(
    blink::ServiceWorkerStatusCode expected_status,
    bool* called,
    scoped_refptr<ServiceWorkerRegistration>* registration_out,
    blink::ServiceWorkerStatusCode status,
    const std::string& status_message,
    ServiceWorkerRegistration* registration) {
  EXPECT_EQ(expected_status, status);
  *called = true;
  *registration_out = registration;
}

void SaveFoundRegistrationCallback(
    blink::ServiceWorkerStatusCode expected_status,
    bool* called,
    scoped_refptr<ServiceWorkerRegistration>* registration,
    blink::ServiceWorkerStatusCode status,
    scoped_refptr<ServiceWorkerRegistration> result) {
  EXPECT_EQ(expected_status, status);
  *called = true;
  *registration = std::move(result);
}

// Creates a callback which both keeps track of if it's been called,
// as well as the resulting registration. Whent the callback is fired,
// it ensures that the resulting status matches the expectation.
// 'called' is useful for making sure a sychronous callback is or
// isn't called.
ServiceWorkerRegisterJob::RegistrationCallback SaveRegistration(
    blink::ServiceWorkerStatusCode expected_status,
    bool* called,
    scoped_refptr<ServiceWorkerRegistration>* registration) {
  *called = false;
  return base::BindOnce(&SaveRegistrationCallback, expected_status, called,
                        registration);
}

ServiceWorkerStorage::FindRegistrationCallback SaveFoundRegistration(
    blink::ServiceWorkerStatusCode expected_status,
    bool* called,
    scoped_refptr<ServiceWorkerRegistration>* registration) {
  *called = false;
  return base::BindOnce(&SaveFoundRegistrationCallback, expected_status, called,
                        registration);
}

void SaveUnregistrationCallback(blink::ServiceWorkerStatusCode expected_status,
                                bool* called,
                                int64_t registration_id,
                                blink::ServiceWorkerStatusCode status) {
  EXPECT_EQ(expected_status, status);
  *called = true;
}

ServiceWorkerUnregisterJob::UnregistrationCallback SaveUnregistration(
    blink::ServiceWorkerStatusCode expected_status,
    bool* called) {
  *called = false;
  return base::BindOnce(&SaveUnregistrationCallback, expected_status, called);
}

}  // namespace

class ServiceWorkerJobTest : public testing::Test {
 public:
  ServiceWorkerJobTest()
      : browser_thread_bundle_(TestBrowserThreadBundle::IO_MAINLOOP) {}

  void SetUp() override {
    helper_.reset(new EmbeddedWorkerTestHelper(base::FilePath()));
  }

  void TearDown() override { helper_.reset(); }

  ServiceWorkerContextCore* context() const { return helper_->context(); }

  ServiceWorkerJobCoordinator* job_coordinator() const {
    return context()->job_coordinator();
  }
  ServiceWorkerStorage* storage() const { return context()->storage(); }

 protected:
  scoped_refptr<ServiceWorkerRegistration> RunRegisterJob(
      const GURL& script_url,
      const blink::mojom::ServiceWorkerRegistrationOptions& options,
      blink::ServiceWorkerStatusCode expected_status =
          blink::ServiceWorkerStatusCode::kOk);
  void RunUnregisterJob(const GURL& scope,
                        blink::ServiceWorkerStatusCode expected_status =
                            blink::ServiceWorkerStatusCode::kOk);
  scoped_refptr<ServiceWorkerRegistration> FindRegistrationForScope(
      const GURL& scope,
      blink::ServiceWorkerStatusCode expected_status =
          blink::ServiceWorkerStatusCode::kOk);
  ServiceWorkerProviderHost* CreateControllee();

  TestBrowserThreadBundle browser_thread_bundle_;
  std::unique_ptr<EmbeddedWorkerTestHelper> helper_;
  std::vector<ServiceWorkerRemoteProviderEndpoint> remote_endpoints_;
};

scoped_refptr<ServiceWorkerRegistration> ServiceWorkerJobTest::RunRegisterJob(
    const GURL& script_url,
    const blink::mojom::ServiceWorkerRegistrationOptions& options,
    blink::ServiceWorkerStatusCode expected_status) {
  scoped_refptr<ServiceWorkerRegistration> registration;
  bool called;
  job_coordinator()->Register(
      script_url, options,
      SaveRegistration(expected_status, &called, &registration));
  EXPECT_FALSE(called);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);
  return registration;
}

void ServiceWorkerJobTest::RunUnregisterJob(
    const GURL& scope,
    blink::ServiceWorkerStatusCode expected_status) {
  bool called;
  job_coordinator()->Unregister(scope,
                                SaveUnregistration(expected_status, &called));
  EXPECT_FALSE(called);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);
}

scoped_refptr<ServiceWorkerRegistration>
ServiceWorkerJobTest::FindRegistrationForScope(
    const GURL& scope,
    blink::ServiceWorkerStatusCode expected_status) {
  bool called;
  scoped_refptr<ServiceWorkerRegistration> registration;
  storage()->FindRegistrationForScope(
      scope, SaveFoundRegistration(expected_status, &called, &registration));

  EXPECT_FALSE(called);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);
  return registration;
}

ServiceWorkerProviderHost* ServiceWorkerJobTest::CreateControllee() {
  remote_endpoints_.emplace_back();
  base::WeakPtr<ServiceWorkerProviderHost> host = CreateProviderHostForWindow(
      33 /* dummy render process id */, true /* is_parent_frame_secure */,
      helper_->context()->AsWeakPtr(), &remote_endpoints_.back());
  auto* host_ptr = host.get();
  return host_ptr;
}

TEST_F(ServiceWorkerJobTest, SameDocumentSameRegistration) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> original_registration =
      RunRegisterJob(GURL("https://www.example.com/service_worker.js"),
                     options);
  bool called;
  scoped_refptr<ServiceWorkerRegistration> registration1;
  storage()->FindRegistrationForDocument(
      GURL("https://www.example.com/"),
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kOk, &called,
                            &registration1));
  scoped_refptr<ServiceWorkerRegistration> registration2;
  storage()->FindRegistrationForDocument(
      GURL("https://www.example.com/"),
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kOk, &called,
                            &registration2));
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);
  ASSERT_TRUE(registration1.get());
  ASSERT_EQ(registration1, original_registration);
  ASSERT_EQ(registration1, registration2);
}

TEST_F(ServiceWorkerJobTest, SameMatchSameRegistration) {
  bool called;
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> original_registration =
      RunRegisterJob(GURL("https://www.example.com/service_worker.js"),
                     options);
  ASSERT_NE(static_cast<ServiceWorkerRegistration*>(nullptr),
            original_registration.get());

  scoped_refptr<ServiceWorkerRegistration> registration1;
  storage()->FindRegistrationForDocument(
      GURL("https://www.example.com/one"),
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kOk, &called,
                            &registration1));
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);

  scoped_refptr<ServiceWorkerRegistration> registration2;
  storage()->FindRegistrationForDocument(
      GURL("https://www.example.com/two"),
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kOk, &called,
                            &registration2));
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);
  ASSERT_EQ(registration1, original_registration);
  ASSERT_EQ(registration1, registration2);
}

TEST_F(ServiceWorkerJobTest, DifferentMatchDifferentRegistration) {
  bool called1;
  blink::mojom::ServiceWorkerRegistrationOptions options1;
  options1.scope = GURL("https://www.example.com/one/");
  scoped_refptr<ServiceWorkerRegistration> original_registration1;
  job_coordinator()->Register(
      GURL("https://www.example.com/service_worker.js"), options1,
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk, &called1,
                       &original_registration1));

  bool called2;
  blink::mojom::ServiceWorkerRegistrationOptions options2;
  options2.scope = GURL("https://www.example.com/two/");
  scoped_refptr<ServiceWorkerRegistration> original_registration2;
  job_coordinator()->Register(
      GURL("https://www.example.com/service_worker.js"), options2,
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk, &called2,
                       &original_registration2));

  EXPECT_FALSE(called1);
  EXPECT_FALSE(called2);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called2);
  EXPECT_TRUE(called1);

  scoped_refptr<ServiceWorkerRegistration> registration1;
  storage()->FindRegistrationForDocument(
      GURL("https://www.example.com/one/"),
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kOk, &called1,
                            &registration1));
  scoped_refptr<ServiceWorkerRegistration> registration2;
  storage()->FindRegistrationForDocument(
      GURL("https://www.example.com/two/"),
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kOk, &called2,
                            &registration2));

  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called2);
  EXPECT_TRUE(called1);
  ASSERT_NE(registration1, registration2);
}

class RecordInstallActivateWorker : public FakeServiceWorker {
 public:
  RecordInstallActivateWorker(EmbeddedWorkerTestHelper* helper)
      : FakeServiceWorker(helper) {}
  ~RecordInstallActivateWorker() override = default;

  const std::vector<ServiceWorkerMetrics::EventType>& events() const {
    return events_;
  }

  void DispatchInstallEvent(
      blink::mojom::ServiceWorker::DispatchInstallEventCallback callback)
      override {
    events_.emplace_back(ServiceWorkerMetrics::EventType::INSTALL);
    FakeServiceWorker::DispatchInstallEvent(std::move(callback));
  }

  void DispatchActivateEvent(
      blink::mojom::ServiceWorker::DispatchActivateEventCallback callback)
      override {
    events_.emplace_back(ServiceWorkerMetrics::EventType::ACTIVATE);
    FakeServiceWorker::DispatchActivateEvent(std::move(callback));
  }

 private:
  std::vector<ServiceWorkerMetrics::EventType> events_;
};

// Make sure basic registration is working.
TEST_F(ServiceWorkerJobTest, Register) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  auto* worker =
      helper_->AddNewPendingServiceWorker<RecordInstallActivateWorker>(
          helper_.get());
  scoped_refptr<ServiceWorkerRegistration> registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);

  EXPECT_TRUE(registration);
  ASSERT_EQ(2u, worker->events().size());
  EXPECT_EQ(ServiceWorkerMetrics::EventType::INSTALL, worker->events()[0]);
  EXPECT_EQ(ServiceWorkerMetrics::EventType::ACTIVATE, worker->events()[1]);
}

// Make sure registrations are cleaned up when they are unregistered.
TEST_F(ServiceWorkerJobTest, Unregister) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);
  scoped_refptr<ServiceWorkerVersion> version = registration->active_version();

  ServiceWorkerProviderHost* provider_host =
      registration->active_version()->provider_host();
  ASSERT_NE(nullptr, provider_host);
  // One ServiceWorkerRegistrationObjectHost should have been created for the
  // new registration.
  EXPECT_EQ(1UL, provider_host->registration_object_hosts_.size());
  // One ServiceWorkerObjectHost should have been created for the new service
  // worker.
  EXPECT_EQ(1UL, provider_host->service_worker_object_hosts_.size());

  RunUnregisterJob(options.scope);

  // The service worker registration object host and service worker object host
  // have been destroyed together with |provider_host| by the above
  // unregistration. Then |registration| and |version| should be the last one
  // reference to the corresponding instance.
  EXPECT_TRUE(registration->HasOneRef());
  EXPECT_TRUE(version->HasOneRef());
  EXPECT_EQ(EmbeddedWorkerStatus::STOPPED, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, version->status());

  registration = FindRegistrationForScope(
      options.scope, blink::ServiceWorkerStatusCode::kErrorNotFound);

  EXPECT_FALSE(registration);
}

TEST_F(ServiceWorkerJobTest, Unregister_NothingRegistered) {
  GURL scope("https://www.example.com/");

  RunUnregisterJob(scope, blink::ServiceWorkerStatusCode::kErrorNotFound);
}

// Make sure registering a new script creates a new version and shares an
// existing registration.
TEST_F(ServiceWorkerJobTest, RegisterNewScript) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  scoped_refptr<ServiceWorkerRegistration> old_registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);

  scoped_refptr<ServiceWorkerRegistration> old_registration_by_scope =
      FindRegistrationForScope(options.scope);

  ASSERT_EQ(old_registration, old_registration_by_scope);
  old_registration_by_scope = nullptr;

  scoped_refptr<ServiceWorkerRegistration> new_registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker_new.js"), options);

  ASSERT_EQ(old_registration, new_registration);

  scoped_refptr<ServiceWorkerRegistration> new_registration_by_scope =
      FindRegistrationForScope(options.scope);

  ASSERT_EQ(new_registration, new_registration_by_scope);
}

// Make sure that when registering a duplicate scope+script_url
// combination, that the same registration is used.
TEST_F(ServiceWorkerJobTest, RegisterDuplicateScript) {
  GURL script_url("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  scoped_refptr<ServiceWorkerRegistration> old_registration =
      RunRegisterJob(script_url, options);

  // During the above registration, a service worker registration object host
  // for ServiceWorkerGlobalScope#registration has been created/added into
  // |provider_host|.
  ServiceWorkerProviderHost* provider_host =
      old_registration->active_version()->provider_host();
  ASSERT_NE(nullptr, provider_host);

  // Clear all service worker object hosts.
  provider_host->service_worker_object_hosts_.clear();
  // Ensure that the registration's object host doesn't have the reference.
  EXPECT_EQ(1UL, provider_host->registration_object_hosts_.size());
  provider_host->registration_object_hosts_.clear();
  EXPECT_EQ(0UL, provider_host->registration_object_hosts_.size());
  ASSERT_TRUE(old_registration->HasOneRef());

  scoped_refptr<ServiceWorkerRegistration> old_registration_by_scope =
      FindRegistrationForScope(options.scope);

  ASSERT_TRUE(old_registration_by_scope.get());

  scoped_refptr<ServiceWorkerRegistration> new_registration =
      RunRegisterJob(script_url, options);

  ASSERT_EQ(old_registration, new_registration);

  ASSERT_FALSE(old_registration->HasOneRef());

  scoped_refptr<ServiceWorkerRegistration> new_registration_by_scope =
      FindRegistrationForScope(options.scope);

  EXPECT_EQ(new_registration_by_scope, old_registration);
}

// Make sure that the same registration is used and the update_via_cache value
// is updated when registering a duplicate scope+script_url with a different
// update_via_cache value.
TEST_F(ServiceWorkerJobTest, RegisterWithDifferentUpdateViaCache) {
  GURL script_url("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  scoped_refptr<ServiceWorkerRegistration> old_registration =
      RunRegisterJob(script_url, options);

  EXPECT_EQ(blink::mojom::ServiceWorkerUpdateViaCache::kImports,
            old_registration->update_via_cache());

  // During the above registration, a service worker registration object host
  // for ServiceWorkerGlobalScope#registration has been created/added into
  // |provider_host|.
  ServiceWorkerProviderHost* provider_host =
      old_registration->active_version()->provider_host();
  ASSERT_NE(nullptr, provider_host);

  // Clear all service worker object hosts.
  provider_host->service_worker_object_hosts_.clear();
  // Ensure that the registration's object host doesn't have the reference.
  EXPECT_EQ(1UL, provider_host->registration_object_hosts_.size());
  provider_host->registration_object_hosts_.clear();
  EXPECT_EQ(0UL, provider_host->registration_object_hosts_.size());
  ASSERT_TRUE(old_registration->HasOneRef());

  scoped_refptr<ServiceWorkerRegistration> old_registration_by_scope =
      FindRegistrationForScope(options.scope);

  ASSERT_TRUE(old_registration_by_scope.get());

  options.update_via_cache = blink::mojom::ServiceWorkerUpdateViaCache::kNone;
  scoped_refptr<ServiceWorkerRegistration> new_registration =
      RunRegisterJob(script_url, options);

  // Ensure that the registration object is not copied.
  ASSERT_EQ(old_registration, new_registration);
  EXPECT_EQ(blink::mojom::ServiceWorkerUpdateViaCache::kNone,
            new_registration->update_via_cache());

  ASSERT_FALSE(old_registration->HasOneRef());

  scoped_refptr<ServiceWorkerRegistration> new_registration_by_scope =
      FindRegistrationForScope(options.scope);

  EXPECT_EQ(new_registration_by_scope, old_registration);
}

// An instance client that breaks the Mojo connection upon receiving the
// Start() message.
class FailStartInstanceClient : public FakeEmbeddedWorkerInstanceClient {
 public:
  FailStartInstanceClient(EmbeddedWorkerTestHelper* helper)
      : FakeEmbeddedWorkerInstanceClient(helper) {}

  void StartWorker(blink::mojom::EmbeddedWorkerStartParamsPtr params) override {
    // Don't save the Mojo ptrs. The connection breaks.
  }
};

TEST_F(ServiceWorkerJobTest, Register_FailToStartWorker) {
  helper_->AddPendingInstanceClient(
      std::make_unique<FailStartInstanceClient>(helper_.get()));

  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(GURL("https://www.example.com/service_worker.js"), options,
                     blink::ServiceWorkerStatusCode::kErrorStartWorkerFailed);

  ASSERT_EQ(scoped_refptr<ServiceWorkerRegistration>(nullptr), registration);
}

// Register and then unregister the scope, in parallel. Job coordinator should
// process jobs until the last job.
TEST_F(ServiceWorkerJobTest, ParallelRegUnreg) {
  GURL script_url("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  bool registration_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration;
  job_coordinator()->Register(
      script_url, options,
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk,
                       &registration_called, &registration));

  bool unregistration_called = false;
  job_coordinator()->Unregister(
      options.scope, SaveUnregistration(blink::ServiceWorkerStatusCode::kOk,
                                        &unregistration_called));

  ASSERT_FALSE(registration_called);
  ASSERT_FALSE(unregistration_called);
  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(registration_called);
  ASSERT_TRUE(unregistration_called);

  registration = FindRegistrationForScope(
      options.scope, blink::ServiceWorkerStatusCode::kErrorNotFound);

  ASSERT_EQ(scoped_refptr<ServiceWorkerRegistration>(), registration);
}

// Register conflicting scripts for the same scope. The most recent
// registration should win, and the old registration should have been
// shutdown.
TEST_F(ServiceWorkerJobTest, ParallelRegNewScript) {
  GURL scope("https://www.example.com/");

  GURL script_url1("https://www.example.com/service_worker1.js");
  bool registration1_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration1;
  job_coordinator()->Register(
      script_url1,
      blink::mojom::ServiceWorkerRegistrationOptions(
          scope, blink::mojom::ScriptType::kClassic,
          blink::mojom::ServiceWorkerUpdateViaCache::kNone),
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk,
                       &registration1_called, &registration1));

  GURL script_url2("https://www.example.com/service_worker2.js");
  bool registration2_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration2;
  job_coordinator()->Register(
      script_url2,
      blink::mojom::ServiceWorkerRegistrationOptions(
          scope, blink::mojom::ScriptType::kClassic,
          blink::mojom::ServiceWorkerUpdateViaCache::kAll),
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk,
                       &registration2_called, &registration2));

  ASSERT_FALSE(registration1_called);
  ASSERT_FALSE(registration2_called);
  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(registration1_called);
  ASSERT_TRUE(registration2_called);

  scoped_refptr<ServiceWorkerRegistration> registration =
      FindRegistrationForScope(scope);

  ASSERT_EQ(registration2, registration);
}

// Register the exact same scope + script. Requests should be
// coalesced such that both callers get the exact same registration
// object.
TEST_F(ServiceWorkerJobTest, ParallelRegSameScript) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  GURL script_url("https://www.example.com/service_worker1.js");
  bool registration1_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration1;
  job_coordinator()->Register(
      script_url, options,
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk,
                       &registration1_called, &registration1));

  bool registration2_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration2;
  job_coordinator()->Register(
      script_url, options,
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk,
                       &registration2_called, &registration2));

  ASSERT_FALSE(registration1_called);
  ASSERT_FALSE(registration2_called);
  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(registration1_called);
  ASSERT_TRUE(registration2_called);

  ASSERT_EQ(registration1, registration2);

  scoped_refptr<ServiceWorkerRegistration> registration =
      FindRegistrationForScope(options.scope);

  ASSERT_EQ(registration, registration1);
}

// Call simulataneous unregister calls.
TEST_F(ServiceWorkerJobTest, ParallelUnreg) {
  GURL scope("https://www.example.com/");

  GURL script_url("https://www.example.com/service_worker.js");
  bool unregistration1_called = false;
  job_coordinator()->Unregister(
      scope, SaveUnregistration(blink::ServiceWorkerStatusCode::kErrorNotFound,
                                &unregistration1_called));

  bool unregistration2_called = false;
  job_coordinator()->Unregister(
      scope, SaveUnregistration(blink::ServiceWorkerStatusCode::kErrorNotFound,
                                &unregistration2_called));

  ASSERT_FALSE(unregistration1_called);
  ASSERT_FALSE(unregistration2_called);
  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(unregistration1_called);
  ASSERT_TRUE(unregistration2_called);

  // There isn't really a way to test that they are being coalesced,
  // but we can make sure they can exist simultaneously without
  // crashing.
  scoped_refptr<ServiceWorkerRegistration> registration =
      FindRegistrationForScope(scope,
                               blink::ServiceWorkerStatusCode::kErrorNotFound);

  ASSERT_EQ(scoped_refptr<ServiceWorkerRegistration>(), registration);
}

TEST_F(ServiceWorkerJobTest, AbortAll_Register) {
  GURL script_url1("https://www1.example.com/service_worker.js");
  GURL script_url2("https://www2.example.com/service_worker.js");

  blink::mojom::ServiceWorkerRegistrationOptions options1;
  options1.scope = GURL("https://www1.example.com/");
  blink::mojom::ServiceWorkerRegistrationOptions options2;
  options2.scope = GURL("https://www2.example.com/");

  bool registration_called1 = false;
  scoped_refptr<ServiceWorkerRegistration> registration1;
  job_coordinator()->Register(
      script_url1, options1,
      SaveRegistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                       &registration_called1, &registration1));

  bool registration_called2 = false;
  scoped_refptr<ServiceWorkerRegistration> registration2;
  job_coordinator()->Register(
      script_url2, options2,
      SaveRegistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                       &registration_called2, &registration2));

  ASSERT_FALSE(registration_called1);
  ASSERT_FALSE(registration_called2);
  job_coordinator()->AbortAll();

  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(registration_called1);
  ASSERT_TRUE(registration_called2);

  bool find_called1 = false;
  storage()->FindRegistrationForScope(
      options1.scope,
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kErrorNotFound,
                            &find_called1, &registration1));

  bool find_called2 = false;
  storage()->FindRegistrationForScope(
      options2.scope,
      SaveFoundRegistration(blink::ServiceWorkerStatusCode::kErrorNotFound,
                            &find_called2, &registration2));

  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(find_called1);
  ASSERT_TRUE(find_called2);
  EXPECT_EQ(scoped_refptr<ServiceWorkerRegistration>(), registration1);
  EXPECT_EQ(scoped_refptr<ServiceWorkerRegistration>(), registration2);
}

TEST_F(ServiceWorkerJobTest, AbortAll_Unregister) {
  GURL scope1("https://www1.example.com/");
  GURL scope2("https://www2.example.com/");

  bool unregistration_called1 = false;
  scoped_refptr<ServiceWorkerRegistration> registration1;
  job_coordinator()->Unregister(
      scope1, SaveUnregistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                                 &unregistration_called1));

  bool unregistration_called2 = false;
  job_coordinator()->Unregister(
      scope2, SaveUnregistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                                 &unregistration_called2));

  ASSERT_FALSE(unregistration_called1);
  ASSERT_FALSE(unregistration_called2);
  job_coordinator()->AbortAll();

  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(unregistration_called1);
  ASSERT_TRUE(unregistration_called2);
}

TEST_F(ServiceWorkerJobTest, AbortAll_RegUnreg) {
  GURL script_url("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  bool registration_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration;
  job_coordinator()->Register(
      script_url, options,
      SaveRegistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                       &registration_called, &registration));

  bool unregistration_called = false;
  job_coordinator()->Unregister(
      options.scope,
      SaveUnregistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                         &unregistration_called));

  ASSERT_FALSE(registration_called);
  ASSERT_FALSE(unregistration_called);
  job_coordinator()->AbortAll();

  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(registration_called);
  ASSERT_TRUE(unregistration_called);

  registration = FindRegistrationForScope(
      options.scope, blink::ServiceWorkerStatusCode::kErrorNotFound);

  EXPECT_EQ(scoped_refptr<ServiceWorkerRegistration>(), registration);
}

TEST_F(ServiceWorkerJobTest, AbortScope) {
  GURL script_url("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options1;
  options1.scope = GURL("https://www.example.com/1");
  blink::mojom::ServiceWorkerRegistrationOptions options2;
  options2.scope = GURL("https://www.example.com/2");

  bool registration1_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration1;
  job_coordinator()->Register(
      script_url, options1,
      SaveRegistration(blink::ServiceWorkerStatusCode::kErrorAbort,
                       &registration1_called, &registration1));

  bool registration2_called = false;
  scoped_refptr<ServiceWorkerRegistration> registration2;
  job_coordinator()->Register(
      script_url, options2,
      SaveRegistration(blink::ServiceWorkerStatusCode::kOk,
                       &registration2_called, &registration2));

  ASSERT_FALSE(registration1_called);
  ASSERT_FALSE(registration2_called);
  job_coordinator()->Abort(options1.scope);

  base::RunLoop().RunUntilIdle();
  ASSERT_TRUE(registration1_called);
  ASSERT_TRUE(registration2_called);

  registration1 = FindRegistrationForScope(
      options1.scope, blink::ServiceWorkerStatusCode::kErrorNotFound);
  EXPECT_EQ(nullptr, registration1);

  registration2 = FindRegistrationForScope(options2.scope,
                                           blink::ServiceWorkerStatusCode::kOk);
  EXPECT_NE(nullptr, registration2);
}

// Tests that the waiting worker enters the 'redundant' state upon
// unregistration.
TEST_F(ServiceWorkerJobTest, UnregisterWaitingSetsRedundant) {
  GURL script_url("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script_url, options);
  ASSERT_TRUE(registration.get());

  // Manually create the waiting worker since there is no way to become a
  // waiting worker until Update is implemented.
  scoped_refptr<ServiceWorkerVersion> version = new ServiceWorkerVersion(
      registration.get(), script_url, blink::mojom::ScriptType::kClassic, 1L,
      helper_->context()->AsWeakPtr());
  base::Optional<blink::ServiceWorkerStatusCode> status;
  base::RunLoop run_loop;
  version->StartWorker(
      ServiceWorkerMetrics::EventType::UNKNOWN,
      ReceiveServiceWorkerStatus(&status, run_loop.QuitClosure()));
  run_loop.Run();
  ASSERT_EQ(blink::ServiceWorkerStatusCode::kOk, status.value());

  version->set_fetch_handler_existence(
      ServiceWorkerVersion::FetchHandlerExistence::EXISTS);
  version->SetStatus(ServiceWorkerVersion::INSTALLED);
  registration->SetWaitingVersion(version);
  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::INSTALLED, version->status());

  RunUnregisterJob(GURL("https://www.example.com/"));

  // The version should be stopped since there is no controllee after
  // unregistration.
  EXPECT_EQ(EmbeddedWorkerStatus::STOPPED, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, version->status());
}

// Tests that the active worker enters the 'redundant' state upon
// unregistration.
TEST_F(ServiceWorkerJobTest, UnregisterActiveSetsRedundant) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);
  ASSERT_TRUE(registration.get());

  scoped_refptr<ServiceWorkerVersion> version = registration->active_version();
  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, version->status());

  RunUnregisterJob(GURL("https://www.example.com/"));

  // The version should be stopped since there is no controllee after
  // unregistration.
  EXPECT_EQ(EmbeddedWorkerStatus::STOPPED, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, version->status());
}

// Tests that the active worker enters the 'redundant' state upon
// unregistration.
TEST_F(ServiceWorkerJobTest,
       UnregisterActiveSetsRedundant_WaitForNoControllee) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);
  ASSERT_TRUE(registration.get());

  ServiceWorkerProviderHost* host = CreateControllee();
  registration->active_version()->AddControllee(host);

  scoped_refptr<ServiceWorkerVersion> version = registration->active_version();
  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, version->status());

  RunUnregisterJob(GURL("https://www.example.com/"));

  // The version should be running since there is still a controllee.
  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, version->status());

  registration->active_version()->RemoveControllee(host->client_uuid());
  base::RunLoop().RunUntilIdle();

  // The version should be stopped since there is no controllee.
  EXPECT_EQ(EmbeddedWorkerStatus::STOPPED, version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, version->status());
}

namespace {  // Helpers for the update job tests.

const GURL kNoChangeOrigin("https://nochange/");
const GURL kNewVersionOrigin("https://newversion/");
const char kScope[] = "scope/";
const char kScript[] = "script.js";

void RunNestedUntilIdle() {
  base::RunLoop(base::RunLoop::Type::kNestableTasksAllowed).RunUntilIdle();
}

void OnIOComplete(int* rv_out, int rv) {
  *rv_out = rv;
}

void WriteResponse(ServiceWorkerStorage* storage,
                   int64_t id,
                   const std::string& headers,
                   IOBuffer* body,
                   int length) {
  std::unique_ptr<ServiceWorkerResponseWriter> writer =
      storage->CreateResponseWriter(id);

  std::unique_ptr<net::HttpResponseInfo> info =
      std::make_unique<net::HttpResponseInfo>();
  info->request_time = base::Time::Now();
  info->response_time = base::Time::Now();
  info->was_cached = false;
  info->headers = new net::HttpResponseHeaders(headers);
  scoped_refptr<HttpResponseInfoIOBuffer> info_buffer =
      base::MakeRefCounted<HttpResponseInfoIOBuffer>(std::move(info));

  int rv = -1234;
  writer->WriteInfo(info_buffer.get(), base::BindOnce(&OnIOComplete, &rv));
  RunNestedUntilIdle();
  EXPECT_LT(0, rv);

  rv = -1234;
  writer->WriteData(body, length, base::BindOnce(&OnIOComplete, &rv));
  RunNestedUntilIdle();
  EXPECT_EQ(length, rv);
}

void WriteStringResponse(ServiceWorkerStorage* storage,
                         int64_t id,
                         const std::string& body) {
  scoped_refptr<IOBuffer> body_buffer =
      base::MakeRefCounted<WrappedIOBuffer>(body.data());
  const char kHttpHeaders[] = "HTTP/1.0 200 HONKYDORY\0\0";
  std::string headers(kHttpHeaders, base::size(kHttpHeaders));
  WriteResponse(storage, id, headers, body_buffer.get(), body.length());
}

class UpdateJobTestHelper : public EmbeddedWorkerTestHelper,
                            public ServiceWorkerRegistration::Listener,
                            public ServiceWorkerContextCoreObserver {
 public:
  struct AttributeChangeLogEntry {
    int64_t registration_id;
    blink::mojom::ChangedServiceWorkerObjectsMaskPtr mask;
    ServiceWorkerRegistrationInfo info;
  };

  struct StateChangeLogEntry {
    int64_t version_id;
    ServiceWorkerVersion::Status status;
  };

  UpdateJobTestHelper()
      : EmbeddedWorkerTestHelper(base::FilePath()), weak_factory_(this) {
    context_wrapper()->AddObserver(this);
  }
  ~UpdateJobTestHelper() override {
    context_wrapper()->RemoveObserver(this);
    if (observed_registration_.get())
      observed_registration_->RemoveListener(this);
  }

  class UpdateJobEmbeddedWorkerInstanceClient
      : public FakeEmbeddedWorkerInstanceClient {
   public:
    UpdateJobEmbeddedWorkerInstanceClient(UpdateJobTestHelper* helper)
        : FakeEmbeddedWorkerInstanceClient(helper) {}
    ~UpdateJobEmbeddedWorkerInstanceClient() override = default;

    void set_force_start_worker_failure(bool force_start_worker_failure) {
      force_start_worker_failure_ = force_start_worker_failure;
    }

    void ResumeAfterDownload() override {
      if (force_start_worker_failure_) {
        host()->OnScriptEvaluationStart();
        host()->OnStarted(
            blink::mojom::ServiceWorkerStartStatus::kAbruptCompletion,
            helper()->GetNextThreadId(),
            blink::mojom::EmbeddedWorkerStartTiming::New());
        return;
      }
      FakeEmbeddedWorkerInstanceClient::ResumeAfterDownload();
    }

   private:
    bool force_start_worker_failure_ = false;
  };

  ServiceWorkerStorage* storage() { return context()->storage(); }
  ServiceWorkerJobCoordinator* job_coordinator() {
    return context()->job_coordinator();
  }

  scoped_refptr<ServiceWorkerRegistration> SetupInitialRegistration(
      const GURL& test_origin) {
    blink::mojom::ServiceWorkerRegistrationOptions options;
    options.scope = test_origin.Resolve(kScope);
    scoped_refptr<ServiceWorkerRegistration> registration;
    bool called = false;

    auto client = std::make_unique<UpdateJobEmbeddedWorkerInstanceClient>(this);
    initial_embedded_worker_instance_client_ = client.get();
    AddPendingInstanceClient(std::move(client));

    job_coordinator()->Register(
        test_origin.Resolve(kScript), options,
        SaveRegistration(blink::ServiceWorkerStatusCode::kOk, &called,
                         &registration));
    base::RunLoop().RunUntilIdle();
    EXPECT_TRUE(called);
    EXPECT_TRUE(registration.get());
    EXPECT_TRUE(registration->active_version());
    EXPECT_FALSE(registration->installing_version());
    EXPECT_FALSE(registration->waiting_version());
    observed_registration_ = registration;
    return registration;
  }

  // EmbeddedWorkerTestHelper overrides:
  void PopulateScriptCacheMap(int64_t version_id,
                              base::OnceClosure callback) override {
    const std::string kMockScriptBody = "mock_script";
    const uint64_t kMockScriptSize = 19284;
    ServiceWorkerVersion* version = context()->GetLiveVersion(version_id);
    ASSERT_TRUE(version);
    ServiceWorkerRegistration* registration =
        context()->GetLiveRegistration(version->registration_id());
    ASSERT_TRUE(registration);
    GURL script = version->script_url();
    bool is_update = registration->active_version() &&
                     version != registration->active_version();

    // Simulate network access.
    base::TimeDelta time_since_last_check =
        base::Time::Now() - registration->last_update_check();
    if (!is_update || script.GetOrigin() != kNoChangeOrigin ||
        time_since_last_check > kServiceWorkerScriptMaxCacheAge) {
      version->embedded_worker()->OnNetworkAccessedForScriptLoad();
    }

    int64_t resource_id = storage()->NewResourceId();
    version->script_cache_map()->NotifyStartedCaching(script, resource_id);
    if (!is_update) {
      // Spoof caching the script for the initial version.
      WriteStringResponse(storage(), resource_id, kMockScriptBody);
      version->script_cache_map()->NotifyFinishedCaching(
          script, kMockScriptSize, net::OK, std::string());
    } else if (script.GetOrigin() == kNoChangeOrigin) {
      // Simulate fetching the updated script and finding it's identical to
      // the incumbent.
      version->script_cache_map()->NotifyFinishedCaching(
          script, kMockScriptSize, net::ERR_FILE_EXISTS, std::string());
    } else {
      // Spoof caching the script for the new version.
      WriteStringResponse(storage(), resource_id, "mock_different_script");
      version->script_cache_map()->NotifyFinishedCaching(
          script, kMockScriptSize, net::OK, std::string());
    }
    version->SetMainScriptHttpResponseInfo(CreateHttpResponseInfo());
    std::move(callback).Run();
  }

  // ServiceWorkerContextCoreObserver overrides
  void OnVersionStateChanged(int64_t version_id,
                             const GURL& scope,
                             ServiceWorkerVersion::Status status) override {
    StateChangeLogEntry entry;
    entry.version_id = version_id;
    entry.status = status;
    state_change_log_.push_back(std::move(entry));
  }

  // ServiceWorkerRegistration::Listener overrides
  void OnVersionAttributesChanged(
      ServiceWorkerRegistration* registration,
      blink::mojom::ChangedServiceWorkerObjectsMaskPtr changed_mask,
      const ServiceWorkerRegistrationInfo& info) override {
    AttributeChangeLogEntry entry;
    entry.registration_id = registration->id();
    entry.mask = std::move(changed_mask);
    entry.info = info;
    attribute_change_log_.push_back(std::move(entry));
  }

  void OnRegistrationFailed(ServiceWorkerRegistration* registration) override {
    registration_failed_ = true;
  }

  void OnUpdateFound(ServiceWorkerRegistration* registration) override {
    update_found_ = true;
  }

  UpdateJobEmbeddedWorkerInstanceClient*
      initial_embedded_worker_instance_client_ = nullptr;
  scoped_refptr<ServiceWorkerRegistration> observed_registration_;
  std::vector<AttributeChangeLogEntry> attribute_change_log_;
  std::vector<StateChangeLogEntry> state_change_log_;
  bool update_found_ = false;
  bool registration_failed_ = false;
  bool force_start_worker_failure_ = false;
  base::Optional<bool> will_be_terminated_;

  base::WeakPtrFactory<UpdateJobTestHelper> weak_factory_;
};

void RequestTermination(
    blink::mojom::EmbeddedWorkerInstanceHostAssociatedPtr* host) {
  // We can't wait for the callback since StopWorker() arrives before it which
  // severs the Mojo connection.
  (*host)->RequestTermination(base::DoNothing());
}

}  // namespace

TEST_F(ServiceWorkerJobTest, Update_NoChange) {
  UpdateJobTestHelper* update_helper = new UpdateJobTestHelper;
  helper_.reset(update_helper);
  scoped_refptr<ServiceWorkerRegistration> registration =
      update_helper->SetupInitialRegistration(kNoChangeOrigin);
  ASSERT_TRUE(registration.get());
  ASSERT_EQ(4u, update_helper->state_change_log_.size());
  EXPECT_EQ(ServiceWorkerVersion::INSTALLING,
            update_helper->state_change_log_[0].status);
  EXPECT_EQ(ServiceWorkerVersion::INSTALLED,
            update_helper->state_change_log_[1].status);
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATING,
            update_helper->state_change_log_[2].status);
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED,
            update_helper->state_change_log_[3].status);
  update_helper->state_change_log_.clear();

  // Run the update job.
  registration->AddListener(update_helper);
  scoped_refptr<ServiceWorkerVersion> first_version =
      registration->active_version();
  first_version->StartUpdate();
  base::RunLoop().RunUntilIdle();

  // Verify results.
  ASSERT_TRUE(registration->active_version());
  EXPECT_EQ(first_version.get(), registration->active_version());
  EXPECT_FALSE(registration->installing_version());
  EXPECT_FALSE(registration->waiting_version());
  EXPECT_TRUE(update_helper->attribute_change_log_.empty());
  ASSERT_EQ(1u, update_helper->state_change_log_.size());
  EXPECT_NE(registration->active_version()->version_id(),
            update_helper->state_change_log_[0].version_id);
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT,
            update_helper->state_change_log_[0].status);
  EXPECT_FALSE(update_helper->update_found_);
}

TEST_F(ServiceWorkerJobTest, Update_BumpLastUpdateCheckTime) {
  const base::Time kToday = base::Time::Now();
  const base::Time kYesterday =
      kToday - base::TimeDelta::FromDays(1) - base::TimeDelta::FromHours(1);
  UpdateJobTestHelper* update_helper = new UpdateJobTestHelper;
  helper_.reset(update_helper);
  scoped_refptr<ServiceWorkerRegistration> registration =
      update_helper->SetupInitialRegistration(kNoChangeOrigin);
  ASSERT_TRUE(registration.get());

  registration->AddListener(update_helper);

  // Run an update where the script did not change and the network was not
  // accessed. The check time should not be updated.
  registration->set_last_update_check(kToday);
  registration->active_version()->StartUpdate();
  base::RunLoop().RunUntilIdle();
  EXPECT_EQ(kToday, registration->last_update_check());
  EXPECT_FALSE(update_helper->update_found_);

  // Run an update where the script did not change and the network was accessed.
  // The check time should be updated.
  registration->set_last_update_check(kYesterday);
  registration->active_version()->StartUpdate();
  base::RunLoop().RunUntilIdle();
  EXPECT_LT(kYesterday, registration->last_update_check());
  EXPECT_FALSE(update_helper->update_found_);
  registration->RemoveListener(update_helper);

  registration = update_helper->SetupInitialRegistration(kNewVersionOrigin);
  ASSERT_TRUE(registration.get());

  registration->AddListener(update_helper);

  // Run an update where the script changed. The check time should be updated.
  registration->set_last_update_check(kYesterday);
  registration->active_version()->StartUpdate();
  base::RunLoop().RunUntilIdle();
  EXPECT_LT(kYesterday, registration->last_update_check());

  // Run an update to a worker that loads successfully but fails to start up
  // (script evaluation failure). The check time should be updated.
  auto* embedded_worker_instance_client =
      update_helper->AddNewPendingInstanceClient<
          UpdateJobTestHelper::UpdateJobEmbeddedWorkerInstanceClient>(
          update_helper);
  embedded_worker_instance_client->set_force_start_worker_failure(true);
  registration->set_last_update_check(kYesterday);
  registration->active_version()->StartUpdate();
  base::RunLoop().RunUntilIdle();
  EXPECT_LT(kYesterday, registration->last_update_check());
}

TEST_F(ServiceWorkerJobTest, Update_NewVersion) {
  UpdateJobTestHelper* update_helper = new UpdateJobTestHelper;
  helper_.reset(update_helper);
  scoped_refptr<ServiceWorkerRegistration> registration =
      update_helper->SetupInitialRegistration(kNewVersionOrigin);
  ASSERT_TRUE(registration.get());
  update_helper->state_change_log_.clear();
  auto runner = base::MakeRefCounted<base::TestSimpleTaskRunner>();
  registration->SetTaskRunnerForTest(runner);

  // Run the update job.
  registration->AddListener(update_helper);
  scoped_refptr<ServiceWorkerVersion> first_version =
      registration->active_version();
  first_version->StartUpdate();
  base::RunLoop().RunUntilIdle();

  // The worker is updated after RequestTermination() is called from the
  // renderer. Until then, the active version stays active.
  EXPECT_EQ(first_version.get(), registration->active_version());
  // The new worker is installed but not yet to be activated.
  scoped_refptr<ServiceWorkerVersion> new_version =
      registration->waiting_version();
  EXPECT_EQ(2u, update_helper->attribute_change_log_.size());
  UpdateJobTestHelper::UpdateJobEmbeddedWorkerInstanceClient* client =
      update_helper->initial_embedded_worker_instance_client_;
  RequestTermination(&client->host());

  TestServiceWorkerObserver observer(helper_->context_wrapper());
  observer.RunUntilActivated(new_version.get(), runner);

  // Pump the loop again. This ensures |update_helper| observes all
  // the status changes, since RunUntilActivated() only ensured
  // ServiceWorkerJobTest did.
  base::RunLoop().RunUntilIdle();

  // Verify results.
  ASSERT_TRUE(registration->active_version());
  EXPECT_NE(first_version.get(), registration->active_version());
  EXPECT_FALSE(registration->installing_version());
  EXPECT_FALSE(registration->waiting_version());
  ASSERT_EQ(3u, update_helper->attribute_change_log_.size());

  {
    const UpdateJobTestHelper::AttributeChangeLogEntry& entry =
        update_helper->attribute_change_log_[0];
    EXPECT_TRUE(entry.mask->installing);
    EXPECT_FALSE(entry.mask->waiting);
    EXPECT_FALSE(entry.mask->active);
    EXPECT_NE(entry.info.installing_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
    EXPECT_EQ(entry.info.waiting_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
    EXPECT_NE(entry.info.active_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
  }

  {
    const UpdateJobTestHelper::AttributeChangeLogEntry& entry =
        update_helper->attribute_change_log_[1];
    EXPECT_TRUE(entry.mask->installing);
    EXPECT_TRUE(entry.mask->waiting);
    EXPECT_FALSE(entry.mask->active);
    EXPECT_EQ(entry.info.installing_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
    EXPECT_NE(entry.info.waiting_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
    EXPECT_NE(entry.info.active_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
  }

  {
    const UpdateJobTestHelper::AttributeChangeLogEntry& entry =
        update_helper->attribute_change_log_[2];
    EXPECT_FALSE(entry.mask->installing);
    EXPECT_TRUE(entry.mask->waiting);
    EXPECT_TRUE(entry.mask->active);
    EXPECT_EQ(entry.info.installing_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
    EXPECT_EQ(entry.info.waiting_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
    EXPECT_NE(entry.info.active_version.version_id,
              blink::mojom::kInvalidServiceWorkerVersionId);
  }

  // expected version state transitions:
  // new.installing, new.installed,
  // old.redundant,
  // new.activating, new.activated
  ASSERT_EQ(5u, update_helper->state_change_log_.size());

  EXPECT_EQ(registration->active_version()->version_id(),
            update_helper->state_change_log_[0].version_id);
  EXPECT_EQ(ServiceWorkerVersion::INSTALLING,
            update_helper->state_change_log_[0].status);

  EXPECT_EQ(registration->active_version()->version_id(),
            update_helper->state_change_log_[1].version_id);
  EXPECT_EQ(ServiceWorkerVersion::INSTALLED,
            update_helper->state_change_log_[1].status);

  EXPECT_EQ(first_version->version_id(),
            update_helper->state_change_log_[2].version_id);
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT,
            update_helper->state_change_log_[2].status);

  EXPECT_EQ(registration->active_version()->version_id(),
            update_helper->state_change_log_[3].version_id);
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATING,
            update_helper->state_change_log_[3].status);

  EXPECT_EQ(registration->active_version()->version_id(),
            update_helper->state_change_log_[4].version_id);
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED,
            update_helper->state_change_log_[4].status);

  EXPECT_TRUE(update_helper->update_found_);
}

// Test that the update job uses the script URL of the newest worker when the
// job starts, rather than when it is scheduled.
TEST_F(ServiceWorkerJobTest, Update_ScriptUrlChanged) {
  // Create a registration with an active version.
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/one/");
  auto* initial_client =
      helper_->AddNewPendingInstanceClient<FakeEmbeddedWorkerInstanceClient>(
          helper_.get());
  scoped_refptr<ServiceWorkerRegistration> registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);
  auto runner = base::MakeRefCounted<base::TestSimpleTaskRunner>();
  registration->SetTaskRunnerForTest(runner);

  // Queue an Update. When this runs, it will use the waiting version's script.
  job_coordinator()->Update(registration.get(), false);

  // Add a waiting version with a new script.
  GURL new_script("https://www.example.com/new_worker.js");
  scoped_refptr<ServiceWorkerVersion> version = new ServiceWorkerVersion(
      registration.get(), new_script, blink::mojom::ScriptType::kClassic,
      2L /* dummy version id */, helper_->context()->AsWeakPtr());
  registration->SetWaitingVersion(version);

  // Run the update job.
  base::RunLoop().RunUntilIdle();

  // The worker is activated after RequestTermination() is called from the
  // renderer. Until then, the active version stays active.
  // Still waiting, but the waiting version isn't |version| since another
  // ServiceWorkerVersion is created during the update job and the job wipes
  // out the older waiting version.
  ServiceWorkerVersion* waiting_version = registration->waiting_version();
  EXPECT_TRUE(registration->active_version());
  EXPECT_TRUE(waiting_version);
  EXPECT_NE(version.get(), waiting_version);

  RequestTermination(&initial_client->host());
  TestServiceWorkerObserver observer(helper_->context_wrapper());
  observer.RunUntilActivated(waiting_version, runner);

  // The update job should have created a new version with the new script,
  // and promoted it to the active version.
  EXPECT_EQ(new_script, registration->active_version()->script_url());
  EXPECT_EQ(nullptr, registration->waiting_version());
  EXPECT_EQ(nullptr, registration->installing_version());
}

// Test that update succeeds if the incumbent worker was evicted
// during the update job (this can happen on disk cache failure).
TEST_F(ServiceWorkerJobTest, Update_EvictedIncumbent) {
  UpdateJobTestHelper* update_helper = new UpdateJobTestHelper;
  helper_.reset(update_helper);
  scoped_refptr<ServiceWorkerRegistration> registration =
      update_helper->SetupInitialRegistration(kNewVersionOrigin);
  ASSERT_TRUE(registration.get());
  update_helper->state_change_log_.clear();

  registration->AddListener(update_helper);
  scoped_refptr<ServiceWorkerVersion> first_version =
      registration->active_version();
  auto* instance_client = helper_->AddNewPendingInstanceClient<
      DelayedFakeEmbeddedWorkerInstanceClient>(helper_.get());

  // Start the update job and make it block on the worker starting.
  // Evict the incumbent during that time.
  first_version->StartUpdate();
  instance_client->RunUntilStartWorker();
  registration->DeleteVersion(first_version);

  // Finish the update job.
  instance_client->UnblockStartWorker();
  base::RunLoop().RunUntilIdle();

  // Verify results.
  ASSERT_TRUE(registration->active_version());
  EXPECT_NE(first_version.get(), registration->active_version());
  EXPECT_FALSE(registration->installing_version());
  EXPECT_FALSE(registration->waiting_version());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, first_version->status());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED,
            registration->active_version()->status());
  ASSERT_EQ(4u, update_helper->attribute_change_log_.size());
  EXPECT_TRUE(update_helper->update_found_);
  EXPECT_TRUE(update_helper->registration_failed_);
  EXPECT_FALSE(registration->is_uninstalled());
}

TEST_F(ServiceWorkerJobTest, Update_UninstallingRegistration) {
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/one/");
  bool called;
  scoped_refptr<ServiceWorkerRegistration> registration = RunRegisterJob(
      GURL("https://www.example.com/service_worker.js"), options);

  // Add a controllee and queue an unregister to force the uninstalling state.
  ServiceWorkerProviderHost* host = CreateControllee();
  ServiceWorkerVersion* active_version = registration->active_version();
  active_version->AddControllee(host);
  job_coordinator()->Unregister(
      GURL("https://www.example.com/one/"),
      SaveUnregistration(blink::ServiceWorkerStatusCode::kOk, &called));

  // Update should abort after it starts and sees uninstalling.
  job_coordinator()->Update(registration.get(), false);

  EXPECT_FALSE(called);
  base::RunLoop().RunUntilIdle();
  EXPECT_TRUE(called);

  // Verify the registration was not modified by the Update.
  EXPECT_TRUE(registration->is_uninstalling());
  EXPECT_EQ(active_version, registration->active_version());
  EXPECT_EQ(nullptr, registration->waiting_version());
  EXPECT_EQ(nullptr, registration->installing_version());
}

TEST_F(ServiceWorkerJobTest, RegisterWhileUninstalling) {
  GURL script1("https://www.example.com/service_worker.js");
  GURL script2("https://www.example.com/service_worker.js?new");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/one/");

  auto* initial_client =
      helper_->AddNewPendingInstanceClient<FakeEmbeddedWorkerInstanceClient>(
          helper_.get());
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script1, options);
  auto runner = base::MakeRefCounted<base::TestSimpleTaskRunner>();
  registration->SetTaskRunnerForTest(runner);

  // Add a controllee and queue an unregister to force the uninstalling state.
  ServiceWorkerProviderHost* host = CreateControllee();
  scoped_refptr<ServiceWorkerVersion> old_version =
      registration->active_version();
  old_version->AddControllee(host);
  RunUnregisterJob(options.scope);

  // Register another script.
  EXPECT_EQ(registration, RunRegisterJob(script2, options));

  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_EQ(old_version, registration->active_version());
  scoped_refptr<ServiceWorkerVersion> new_version =
      registration->waiting_version();

  // Verify the new version is installed but not activated yet.
  EXPECT_EQ(nullptr, registration->installing_version());
  EXPECT_TRUE(new_version);
  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, new_version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::INSTALLED, new_version->status());

  // Make the old version eligible for eviction.
  old_version->RemoveControllee(host->client_uuid());
  RequestTermination(&initial_client->host());

  // Wait for activated.
  TestServiceWorkerObserver observer(helper_->context_wrapper());
  observer.RunUntilActivated(new_version.get(), runner);

  // Verify state after the new version is activated.
  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_FALSE(registration->is_uninstalled());
  EXPECT_EQ(nullptr, registration->installing_version());
  EXPECT_EQ(nullptr, registration->waiting_version());
  EXPECT_EQ(new_version, registration->active_version());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, new_version->status());
}

TEST_F(ServiceWorkerJobTest, RegisterAndUnregisterWhileUninstalling) {
  GURL script1("https://www.example.com/service_worker.js");
  GURL script2("https://www.example.com/service_worker.js?new");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/one/");

  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script1, options);

  // Add a controllee and queue an unregister to force the uninstalling state.
  ServiceWorkerProviderHost* host = CreateControllee();
  scoped_refptr<ServiceWorkerVersion> old_version =
      registration->active_version();
  old_version->AddControllee(host);
  RunUnregisterJob(options.scope);

  EXPECT_EQ(registration, RunRegisterJob(script2, options));

  EXPECT_EQ(registration, FindRegistrationForScope(options.scope));
  scoped_refptr<ServiceWorkerVersion> new_version =
      registration->waiting_version();
  ASSERT_TRUE(new_version);

  // Unregister the registration (but it's still live).
  RunUnregisterJob(options.scope);
  // Now it's not found in the storage.
  RunUnregisterJob(options.scope,
                   blink::ServiceWorkerStatusCode::kErrorNotFound);

  FindRegistrationForScope(options.scope,
                           blink::ServiceWorkerStatusCode::kErrorNotFound);
  EXPECT_TRUE(registration->is_uninstalling());
  EXPECT_EQ(old_version, registration->active_version());

  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, old_version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, old_version->status());
  EXPECT_EQ(EmbeddedWorkerStatus::RUNNING, new_version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::INSTALLED, new_version->status());

  old_version->RemoveControllee(host->client_uuid());
  base::RunLoop().RunUntilIdle();

  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_TRUE(registration->is_uninstalled());

  EXPECT_EQ(EmbeddedWorkerStatus::STOPPED, old_version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, old_version->status());
  EXPECT_EQ(EmbeddedWorkerStatus::STOPPED, new_version->running_status());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, new_version->status());
}

TEST_F(ServiceWorkerJobTest, RegisterSameScriptMultipleTimesWhileUninstalling) {
  GURL script1("https://www.example.com/service_worker.js");
  GURL script2("https://www.example.com/service_worker.js?new");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/one/");

  auto* initial_client =
      helper_->AddNewPendingInstanceClient<FakeEmbeddedWorkerInstanceClient>(
          helper_.get());
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script1, options);
  auto runner = base::MakeRefCounted<base::TestSimpleTaskRunner>();
  registration->SetTaskRunnerForTest(runner);

  // Add a controllee and queue an unregister to force the uninstalling state.
  ServiceWorkerProviderHost* host = CreateControllee();
  scoped_refptr<ServiceWorkerVersion> old_version =
      registration->active_version();
  old_version->AddControllee(host);
  RunUnregisterJob(options.scope);

  EXPECT_EQ(registration, RunRegisterJob(script2, options));

  scoped_refptr<ServiceWorkerVersion> new_version =
      registration->waiting_version();
  ASSERT_TRUE(new_version);

  RunUnregisterJob(options.scope);

  EXPECT_TRUE(registration->is_uninstalling());

  EXPECT_EQ(registration, RunRegisterJob(script2, options));

  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_EQ(new_version, registration->waiting_version());

  old_version->RemoveControllee(host->client_uuid());
  RequestTermination(&initial_client->host());

  // Wait for activated.
  TestServiceWorkerObserver observer(helper_->context_wrapper());
  observer.RunUntilActivated(new_version.get(), runner);

  // Verify state after the new version is activated.
  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_FALSE(registration->is_uninstalled());
  EXPECT_EQ(nullptr, registration->installing_version());
  EXPECT_EQ(nullptr, registration->waiting_version());
  EXPECT_EQ(new_version, registration->active_version());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, new_version->status());
}

TEST_F(ServiceWorkerJobTest, RegisterMultipleTimesWhileUninstalling) {
  GURL script1("https://www.example.com/service_worker.js?first");
  GURL script2("https://www.example.com/service_worker.js?second");
  GURL script3("https://www.example.com/service_worker.js?third");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/one/");

  auto* initial_client =
      helper_->AddNewPendingInstanceClient<FakeEmbeddedWorkerInstanceClient>(
          helper_.get());
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script1, options);
  auto runner = base::MakeRefCounted<base::TestSimpleTaskRunner>();
  registration->SetTaskRunnerForTest(runner);

  // Add a controllee and queue an unregister to force the uninstalling state.
  ServiceWorkerProviderHost* host = CreateControllee();
  scoped_refptr<ServiceWorkerVersion> first_version =
      registration->active_version();
  first_version->AddControllee(host);
  RunUnregisterJob(options.scope);

  EXPECT_EQ(registration, RunRegisterJob(script2, options));

  scoped_refptr<ServiceWorkerVersion> second_version =
      registration->waiting_version();
  ASSERT_TRUE(second_version);

  RunUnregisterJob(options.scope);

  EXPECT_TRUE(registration->is_uninstalling());

  EXPECT_EQ(registration, RunRegisterJob(script3, options));

  scoped_refptr<ServiceWorkerVersion> third_version =
      registration->waiting_version();
  ASSERT_TRUE(third_version);

  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_EQ(ServiceWorkerVersion::REDUNDANT, second_version->status());

  first_version->RemoveControllee(host->client_uuid());
  RequestTermination(&initial_client->host());

  // Wait for activated.
  TestServiceWorkerObserver observer(helper_->context_wrapper());
  observer.RunUntilActivated(third_version.get(), runner);

  // Verify the new version is activated.
  EXPECT_FALSE(registration->is_uninstalling());
  EXPECT_FALSE(registration->is_uninstalled());
  EXPECT_EQ(nullptr, registration->installing_version());
  EXPECT_EQ(nullptr, registration->waiting_version());
  EXPECT_EQ(third_version, registration->active_version());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATED, third_version->status());
}

// A fake service worker for toggling whether a fetch event handler exists.
class FetchHandlerWorker : public FakeServiceWorker {
 public:
  FetchHandlerWorker(EmbeddedWorkerTestHelper* helper)
      : FakeServiceWorker(helper) {}
  ~FetchHandlerWorker() override = default;

  void set_has_fetch_handler(bool has_fetch_handler) {
    has_fetch_handler_ = has_fetch_handler;
  }

  void DispatchInstallEvent(
      blink::mojom::ServiceWorker::DispatchInstallEventCallback callback)
      override {
    std::move(callback).Run(blink::mojom::ServiceWorkerEventStatus::COMPLETED,
                            has_fetch_handler_);
  }

 private:
  bool has_fetch_handler_ = false;
};

TEST_F(ServiceWorkerJobTest, HasFetchHandler) {
  GURL script("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");
  scoped_refptr<ServiceWorkerRegistration> registration;

  auto* fetch_handler_worker =
      helper_->AddNewPendingServiceWorker<FetchHandlerWorker>(helper_.get());
  fetch_handler_worker->set_has_fetch_handler(true);
  RunRegisterJob(script, options);
  registration = FindRegistrationForScope(options.scope);
  EXPECT_EQ(ServiceWorkerVersion::FetchHandlerExistence::EXISTS,
            registration->active_version()->fetch_handler_existence());
  RunUnregisterJob(options.scope);

  auto* no_fetch_handler_worker =
      helper_->AddNewPendingServiceWorker<FetchHandlerWorker>(helper_.get());
  no_fetch_handler_worker->set_has_fetch_handler(false);
  RunRegisterJob(script, options);
  registration = FindRegistrationForScope(options.scope);
  EXPECT_EQ(ServiceWorkerVersion::FetchHandlerExistence::DOES_NOT_EXIST,
            registration->active_version()->fetch_handler_existence());
  RunUnregisterJob(options.scope);
}

class CheckPauseAfterDownloadEmbeddedWorkerInstanceClient
    : public FakeEmbeddedWorkerInstanceClient {
 public:
  explicit CheckPauseAfterDownloadEmbeddedWorkerInstanceClient(
      EmbeddedWorkerTestHelper* helper)
      : FakeEmbeddedWorkerInstanceClient(helper) {}

  int num_of_startworker() const { return num_of_startworker_; }
  void set_next_pause_after_download(bool expectation) {
    next_pause_after_download_ = expectation;
  }

 protected:
  void StartWorker(blink::mojom::EmbeddedWorkerStartParamsPtr params) override {
    ASSERT_TRUE(next_pause_after_download_.has_value());
    EXPECT_EQ(next_pause_after_download_.value(), params->pause_after_download);
    num_of_startworker_++;
    FakeEmbeddedWorkerInstanceClient::StartWorker(std::move(params));
  }

 private:
  base::Optional<bool> next_pause_after_download_;
  int num_of_startworker_ = 0;
  DISALLOW_COPY_AND_ASSIGN(CheckPauseAfterDownloadEmbeddedWorkerInstanceClient);
};

TEST_F(ServiceWorkerJobTest, Update_PauseAfterDownload) {
  UpdateJobTestHelper* update_helper = new UpdateJobTestHelper;
  helper_.reset(update_helper);

  std::vector<CheckPauseAfterDownloadEmbeddedWorkerInstanceClient*> clients;
  clients.push_back(
      helper_->AddNewPendingInstanceClient<
          CheckPauseAfterDownloadEmbeddedWorkerInstanceClient>(helper_.get()));
  clients.push_back(
      helper_->AddNewPendingInstanceClient<
          CheckPauseAfterDownloadEmbeddedWorkerInstanceClient>(helper_.get()));

  // The initial version should not pause after download.
  clients[0]->set_next_pause_after_download(false);
  scoped_refptr<ServiceWorkerRegistration> registration =
      update_helper->SetupInitialRegistration(kNewVersionOrigin);
  ASSERT_EQ(1, clients[0]->num_of_startworker());

  // The updated version should pause after download.
  clients[1]->set_next_pause_after_download(true);
  registration->AddListener(update_helper);
  registration->active_version()->StartUpdate();
  base::RunLoop().RunUntilIdle();
  ASSERT_EQ(1, clients[1]->num_of_startworker());
}

// Test that activation doesn't complete if it's triggered by removing a
// controllee and starting the worker failed due to shutdown.
TEST_F(ServiceWorkerJobTest, ActivateCancelsOnShutdown) {
  UpdateJobTestHelper* update_helper = new UpdateJobTestHelper;
  helper_.reset(update_helper);
  GURL script("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = GURL("https://www.example.com/");

  auto* initial_client =
      helper_->AddNewPendingInstanceClient<FakeEmbeddedWorkerInstanceClient>(
          helper_.get());
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script, options);
  auto runner = base::MakeRefCounted<base::TestSimpleTaskRunner>();
  registration->SetTaskRunnerForTest(runner);

  // Add a controllee.
  ServiceWorkerProviderHost* host = CreateControllee();
  scoped_refptr<ServiceWorkerVersion> first_version =
      registration->active_version();
  first_version->AddControllee(host);

  // Update. The new version should be waiting.
  registration->AddListener(update_helper);
  first_version->StartUpdate();
  base::RunLoop().RunUntilIdle();
  scoped_refptr<ServiceWorkerVersion> new_version =
      registration->waiting_version();
  ASSERT_TRUE(new_version);
  EXPECT_EQ(ServiceWorkerVersion::INSTALLED, new_version->status());

  // Stop the worker so that it must start again when activation is attempted.
  // (This is not strictly necessary to exercise the codepath, but it makes it
  // easy to cause a failure with set_force_start_worker_failure after
  // shutdown is simulated. Otherwise our test helper often fails on
  // DCHECK(context)).
  new_version->StopWorker(base::DoNothing());

  // Remove the controllee. The new version should be activating, and delayed
  // until the runner runs again.
  first_version->RemoveControllee(host->client_uuid());
  base::RunLoop().RunUntilIdle();

  // Activating the new version won't happen until
  // RequestTermination() is called.
  EXPECT_EQ(first_version.get(), registration->active_version());
  RequestTermination(&initial_client->host());

  TestServiceWorkerObserver observer(helper_->context_wrapper());
  observer.RunUntilStatusChange(new_version.get(),
                                ServiceWorkerVersion::ACTIVATING);
  EXPECT_EQ(new_version.get(), registration->active_version());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATING, new_version->status());

  // Shutdown.
  update_helper->context()->wrapper()->Shutdown();
  auto* embedded_worker_instance_client =
      update_helper->AddNewPendingInstanceClient<
          UpdateJobTestHelper::UpdateJobEmbeddedWorkerInstanceClient>(
          update_helper);
  embedded_worker_instance_client->set_force_start_worker_failure(true);

  // Allow the activation to continue. It will fail, and the worker
  // should not be promoted to ACTIVATED because failure occur
  // during shutdown.
  runner->RunPendingTasks();
  base::RunLoop().RunUntilIdle();
  EXPECT_EQ(new_version.get(), registration->active_version());
  EXPECT_EQ(ServiceWorkerVersion::ACTIVATING, new_version->status());
  registration->RemoveListener(update_helper);
  // Dispatch Mojo messages for those Mojo interfaces bound on |runner| to avoid
  // possible memory leak.
  runner->RunUntilIdle();
}

// Test that clients are alerted of new registrations if they are
// in-scope, so that Clients.claim() or ServiceWorkerContainer.ready work
// correctly.
TEST_F(ServiceWorkerJobTest, AddRegistrationToMatchingProviderHosts) {
  GURL scope("https://www.example.com/scope/");
  GURL in_scope("https://www.example.com/scope/page");
  GURL out_scope("https://www.example.com/page");

  // Make an in-scope client.
  ServiceWorkerProviderHost* client = CreateControllee();
  client->UpdateUrls(in_scope, in_scope);

  // Make an in-scope reserved client.
  auto provider_info = blink::mojom::ServiceWorkerProviderInfoForWindow::New();
  base::WeakPtr<ServiceWorkerProviderHost> reserved_client =
      ServiceWorkerProviderHost::PreCreateNavigationHost(
          helper_->context()->AsWeakPtr(), true /* are_ancestors_secure */,
          {} /* web_contents_getter */, &provider_info);
  reserved_client->UpdateUrls(in_scope, in_scope);

  // Make an out-scope client.
  ServiceWorkerProviderHost* out_scope_client = CreateControllee();
  out_scope_client->UpdateUrls(out_scope, out_scope);

  // Make a new registration.
  GURL script("https://www.example.com/service_worker.js");
  blink::mojom::ServiceWorkerRegistrationOptions options;
  options.scope = scope;
  scoped_refptr<ServiceWorkerRegistration> registration =
      RunRegisterJob(script, options);

  EXPECT_EQ(registration.get(), client->MatchRegistration());
  EXPECT_EQ(registration.get(), reserved_client->MatchRegistration());
  EXPECT_NE(registration.get(), out_scope_client->MatchRegistration());
}

}  // namespace content