Implement dumb URLLoader{Factory} for ServiceWorker script loading (for try)

content/browser/service_worker/service_worker_job_unittest.cc

 // 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/files/scoped_temp_dir.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/optional.h"
 #include "base/run_loop.h"
 #include "base/test/test_simple_task_runner.h"
 #include "base/time/time.h"
 #include "content/browser/browser_thread_impl.h"
 #include "content/browser/service_worker/embedded_worker_registry.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/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_dispatcher_host.h"
+#include "content/browser/service_worker/service_worker_handle.h"
 #include "content/browser/service_worker/service_worker_job_coordinator.h"
 #include "content/browser/service_worker/service_worker_registration.h"
+#include "content/browser/service_worker/service_worker_registration_handle.h"
 #include "content/browser/service_worker/service_worker_registration_status.h"
 #include "content/browser/service_worker/service_worker_test_utils.h"
 #include "content/common/service_worker/embedded_worker_messages.h"
 #include "content/common/service_worker/service_worker_messages.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"
 
 using net::IOBuffer;
 using net::TestCompletionCallback;
 using net::WrappedIOBuffer;
 
 // Unit tests for testing all job registration tasks.
 namespace content {
 
 namespace {
 
+// A dispatcher host that holds on to all registered ServiceWorkerHandles and
+// ServiceWorkerRegistrationHandles.
+class KeepHandlesDispatcherHost : public ServiceWorkerDispatcherHost {
+ public:
+  KeepHandlesDispatcherHost(int render_process_id,
+                            ResourceContext* resource_context)
+      : ServiceWorkerDispatcherHost(render_process_id, resource_context) {}
+  void RegisterServiceWorkerHandle(
+      std::unique_ptr<ServiceWorkerHandle> handle) override {
+    handles_.push_back(std::move(handle));
+  }
+  void RegisterServiceWorkerRegistrationHandle(
+      std::unique_ptr<ServiceWorkerRegistrationHandle> handle) override {
+    registration_handles_.push_back(std::move(handle));
+  }
+
+  void RemoveHandles() {
+    handles_.clear();
+    registration_handles_.clear();
+  }
+
+  const std::vector<std::unique_ptr<ServiceWorkerHandle>>& handles() {
+    return handles_;
+  }
+
+  const std::vector<std::unique_ptr<ServiceWorkerRegistrationHandle>>&
+  registration_handles() {
+    return registration_handles_;
+  }
+
+ private:
+  ~KeepHandlesDispatcherHost() override {}
+
+  std::vector<std::unique_ptr<ServiceWorkerHandle>> handles_;
+  std::vector<std::unique_ptr<ServiceWorkerRegistrationHandle>>
+      registration_handles_;
+  DISALLOW_COPY_AND_ASSIGN(KeepHandlesDispatcherHost);
+};
+
 void SaveRegistrationCallback(
     ServiceWorkerStatusCode expected_status,
     bool* called,
     scoped_refptr<ServiceWorkerRegistration>* registration_out,
     ServiceWorkerStatusCode status,
     const std::string& status_message,
     ServiceWorkerRegistration* registration) {
   EXPECT_EQ(expected_status, status);
   *called = true;
   *registration_out = registration;
@@ skipping 293 matching lines @@
   EXPECT_EQ(valid_scope_1, version_->foreign_fetch_scopes_[0]);
   EXPECT_EQ(valid_scope_2, version_->foreign_fetch_scopes_[1]);
   EXPECT_EQ(1u, version_->foreign_fetch_origins_.size());
   EXPECT_EQ(valid_origin, version_->foreign_fetch_origins_[0]);
 }
 
 // Make sure registrations are cleaned up when they are unregistered.
 TEST_F(ServiceWorkerJobTest, Unregister) {
   GURL pattern("http://www.example.com/");
 
+  // During registration, handles will be created for hosting the worker's
+  // context. KeepHandlesDispatcherHost will store the handles.
+  scoped_refptr<KeepHandlesDispatcherHost> dispatcher_host =
+      new KeepHandlesDispatcherHost(
+          helper_->mock_render_process_id(),
+          helper_->browser_context()->GetResourceContext());
+  helper_->RegisterDispatcherHost(helper_->mock_render_process_id(),
+                                  dispatcher_host);
+  dispatcher_host->Init(helper_->context_wrapper());
+
   scoped_refptr<ServiceWorkerRegistration> registration =
       RunRegisterJob(pattern, GURL("http://www.example.com/service_worker.js"));
 
+  EXPECT_EQ(1UL, dispatcher_host->registration_handles().size());
+  EXPECT_EQ(3UL, dispatcher_host->handles().size());
+
   RunUnregisterJob(pattern);
 
+  // Remove the handles. The only reference to the registration object should be
+  // |registration|.
+  dispatcher_host->RemoveHandles();
+  EXPECT_EQ(0UL, dispatcher_host->registration_handles().size());
+  EXPECT_EQ(0UL, dispatcher_host->handles().size());
   ASSERT_TRUE(registration->HasOneRef());
 
   registration = FindRegistrationForPattern(pattern,
                                             SERVICE_WORKER_ERROR_NOT_FOUND);
 
-  ASSERT_EQ(scoped_refptr<ServiceWorkerRegistration>(NULL), registration);
+  ASSERT_EQ(scoped_refptr<ServiceWorkerRegistration>(nullptr), registration);
 }
 
 TEST_F(ServiceWorkerJobTest, Unregister_NothingRegistered) {
   GURL pattern("http://www.example.com/");
 
   RunUnregisterJob(pattern, SERVICE_WORKER_ERROR_NOT_FOUND);
 }
 
 // Make sure registering a new script creates a new version and shares an
 // existing registration.
@@ skipping 17 matching lines @@
 
   scoped_refptr<ServiceWorkerRegistration> new_registration_by_pattern =
       FindRegistrationForPattern(pattern);
 
   ASSERT_EQ(new_registration, new_registration_by_pattern);
 }
 
 // Make sure that when registering a duplicate pattern+script_url
 // combination, that the same registration is used.
 TEST_F(ServiceWorkerJobTest, RegisterDuplicateScript) {
+  // During registration, handles will be created for hosting the worker's
+  // context. KeepHandlesDispatcherHost will store the handles.
+  scoped_refptr<KeepHandlesDispatcherHost> dispatcher_host =
+      new KeepHandlesDispatcherHost(
+          helper_->mock_render_process_id(),
+          helper_->browser_context()->GetResourceContext());
+  helper_->RegisterDispatcherHost(helper_->mock_render_process_id(),
+                                  dispatcher_host);
+  dispatcher_host->Init(helper_->context_wrapper());
+
   GURL pattern("http://www.example.com/");
   GURL script_url("http://www.example.com/service_worker.js");
 
   scoped_refptr<ServiceWorkerRegistration> old_registration =
       RunRegisterJob(pattern, script_url);
 
+  // Ensure that the registration's handle doesn't have the reference.
+  EXPECT_EQ(1UL, dispatcher_host->registration_handles().size());
+  dispatcher_host->RemoveHandles();
+  EXPECT_EQ(0UL, dispatcher_host->registration_handles().size());
+  ASSERT_TRUE(old_registration->HasOneRef());
+
   scoped_refptr<ServiceWorkerRegistration> old_registration_by_pattern =
       FindRegistrationForPattern(pattern);
 
   ASSERT_TRUE(old_registration_by_pattern.get());
 
   scoped_refptr<ServiceWorkerRegistration> new_registration =
       RunRegisterJob(pattern, script_url);
 
   ASSERT_EQ(old_registration, new_registration);
 
   ASSERT_FALSE(old_registration->HasOneRef());
 
   scoped_refptr<ServiceWorkerRegistration> new_registration_by_pattern =
       FindRegistrationForPattern(pattern);
 
   ASSERT_EQ(new_registration, old_registration);
 }
 
 class FailToStartWorkerTestHelper : public EmbeddedWorkerTestHelper {
  public:
   FailToStartWorkerTestHelper() : EmbeddedWorkerTestHelper(base::FilePath()) {}
 
-  void OnStartWorker(int embedded_worker_id,
-                     int64_t service_worker_version_id,
-                     const GURL& scope,
-                     const GURL& script_url,
-                     bool pause_after_download,
-                     mojom::ServiceWorkerEventDispatcherRequest request,
-                     mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo
-                         instance_host) override {
+  void OnStartWorker(
+      int embedded_worker_id,
+      int64_t service_worker_version_id,
+      const GURL& scope,
+      const GURL& script_url,
+      bool pause_after_download,
+      mojom::ServiceWorkerEventDispatcherRequest request,
+      mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo instance_host,
+      mojom::ServiceWorkerProviderClientInfoPtr provider_client_info) override {
     mojom::EmbeddedWorkerInstanceHostAssociatedPtr instance_host_ptr;
     instance_host_ptr.Bind(std::move(instance_host));
     instance_host_ptr->OnStopped();
     base::RunLoop().RunUntilIdle();
   }
 };
 
 TEST_F(ServiceWorkerJobTest, Register_FailToStartWorker) {
   helper_.reset(new FailToStartWorkerTestHelper);
 
@@ skipping 436 matching lines @@
     EXPECT_TRUE(called);
     EXPECT_TRUE(registration.get());
     EXPECT_TRUE(registration->active_version());
     EXPECT_FALSE(registration->installing_version());
     EXPECT_FALSE(registration->waiting_version());
     registration_ = registration;
     return registration;
   }
 
   // EmbeddedWorkerTestHelper overrides
-  void OnStartWorker(int embedded_worker_id,
-                     int64_t version_id,
-                     const GURL& scope,
-                     const GURL& script,
-                     bool pause_after_download,
-                     mojom::ServiceWorkerEventDispatcherRequest request,
-                     mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo
-                         instance_host) override {
+  void OnStartWorker(
+      int embedded_worker_id,
+      int64_t version_id,
+      const GURL& scope,
+      const GURL& script,
+      bool pause_after_download,
+      mojom::ServiceWorkerEventDispatcherRequest request,
+      mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo instance_host,
+      mojom::ServiceWorkerProviderClientInfoPtr provider_client_info) override {
     const std::string kMockScriptBody = "mock_script";
     const uint64_t kMockScriptSize = 19284;
     ServiceWorkerVersion* version = context()->GetLiveVersion(version_id);
     ServiceWorkerRegistration* registration =
         context()->GetLiveRegistration(version->registration_id());
     bool is_update = registration->active_version() &&
                      version != registration->active_version();
 
     ASSERT_TRUE(version);
     version->AddListener(this);
@@ skipping 35 matching lines @@
       // 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(
           EmbeddedWorkerTestHelper::CreateHttpResponseInfo());
     }
 
     EmbeddedWorkerTestHelper::OnStartWorker(
         embedded_worker_id, version_id, scope, script, pause_after_download,
-        std::move(request), std::move(instance_host));
+        std::move(request), std::move(instance_host),
+        std::move(provider_client_info));
   }
 
   void OnResumeAfterDownload(int embedded_worker_id) override {
     if (!force_start_worker_failure_) {
       EmbeddedWorkerTestHelper::OnResumeAfterDownload(embedded_worker_id);
     } else {
-      SimulateWorkerThreadStarted(GetNextThreadId(), embedded_worker_id,
-                                  GetNextProviderId());
+      SimulateWorkerThreadStarted(GetNextThreadId(), embedded_worker_id);
       SimulateWorkerScriptEvaluated(embedded_worker_id, false);
     }
   }
 
   // ServiceWorkerRegistration::Listener overrides
   void OnVersionAttributesChanged(
       ServiceWorkerRegistration* registration,
       ChangedVersionAttributesMask changed_mask,
       const ServiceWorkerRegistrationInfo& info) override {
     AttributeChangeLogEntry entry;
@@ skipping 27 matching lines @@
   bool force_start_worker_failure_ = false;
 };
 
 // Helper class for update tests that evicts the active version when the update
 // worker is about to be started.
 class EvictIncumbentVersionHelper : public UpdateJobTestHelper {
  public:
   EvictIncumbentVersionHelper() {}
   ~EvictIncumbentVersionHelper() override {}
 
-  void OnStartWorker(int embedded_worker_id,
-                     int64_t version_id,
-                     const GURL& scope,
-                     const GURL& script,
-                     bool pause_after_download,
-                     mojom::ServiceWorkerEventDispatcherRequest request,
-                     mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo
-                         instance_host) override {
+  void OnStartWorker(
+      int embedded_worker_id,
+      int64_t version_id,
+      const GURL& scope,
+      const GURL& script,
+      bool pause_after_download,
+      mojom::ServiceWorkerEventDispatcherRequest request,
+      mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo instance_host,
+      mojom::ServiceWorkerProviderClientInfoPtr provider_client_info) override {
     ServiceWorkerVersion* version = context()->GetLiveVersion(version_id);
     ServiceWorkerRegistration* registration =
         context()->GetLiveRegistration(version->registration_id());
     bool is_update = registration->active_version() &&
                      version != registration->active_version();
     if (is_update) {
       // Evict the incumbent worker.
       ASSERT_FALSE(registration->waiting_version());
       registration->DeleteVersion(
           make_scoped_refptr(registration->active_version()));
     }
     UpdateJobTestHelper::OnStartWorker(
         embedded_worker_id, version_id, scope, script, pause_after_download,
-        std::move(request), std::move(instance_host));
+        std::move(request), std::move(instance_host),
+        std::move(provider_client_info));
   }
 
   void OnRegistrationFailed(ServiceWorkerRegistration* registration) override {
     registration_failed_ = true;
   }
 
   bool registration_failed_ = false;
 };
 
 }  // namespace
@@ skipping 652 matching lines @@
  public:
   explicit CheckPauseAfterDownloadEmbeddedWorkerInstanceClient(
       base::WeakPtr<EmbeddedWorkerTestHelper> helper)
       : EmbeddedWorkerTestHelper::MockEmbeddedWorkerInstanceClient(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(const EmbeddedWorkerStartParams& params,
-                   mojom::ServiceWorkerEventDispatcherRequest request,
-                   mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo
-                       instance_host) override {
+  void StartWorker(
+      const EmbeddedWorkerStartParams& params,
+      mojom::ServiceWorkerEventDispatcherRequest request,
+      mojom::EmbeddedWorkerInstanceHostAssociatedPtrInfo instance_host,
+      mojom::ServiceWorkerProviderClientInfoPtr provider_client_info) override {
     ASSERT_TRUE(next_pause_after_download_.has_value());
     EXPECT_EQ(next_pause_after_download_.value(), params.pause_after_download);
     num_of_startworker_++;
     EmbeddedWorkerTestHelper::MockEmbeddedWorkerInstanceClient::StartWorker(
-        params, std::move(request), std::move(instance_host));
+        params, std::move(request), std::move(instance_host),
+        std::move(provider_client_info));
   }
 
  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;
@@ skipping 72 matching lines @@
   // 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);
 }
 
 }  // namespace content