Use mojo for Chrome Loading, Part 1

content/browser/loader/url_loader_factory_impl_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/browser/loader/url_loader_factory_impl.h"
+
+#include "base/bind.h"
+#include "base/callback.h"
+#include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
+#include "content/browser/loader/resource_dispatcher_host_impl.h"
+#include "content/browser/loader/resource_message_filter.h"
+#include "content/common/url_loader.mojom.h"
+#include "content/common/url_loader_factory.mojom.h"
+#include "content/public/browser/resource_context.h"
+#include "content/public/test/test_browser_context.h"
+#include "content/public/test/test_browser_thread_bundle.h"
+#include "net/base/net_errors.h"
+#include "net/test/url_request/url_request_failed_job.h"
+#include "net/url_request/url_request.h"
+#include "net/url_request/url_request_test_job.h"
+#include "net/url_request/url_request_test_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "url/gurl.h"
+
+namespace content {
+
+namespace {
+
+class URLLoaderClientImpl final : public mojom::URLLoaderClient {
+ public:
+  URLLoaderClientImpl() : binding_(this) {}
+  void OnReceiveResponse(const ResourceResponseHead& response_head) override {
+    has_received_response_ = true;
+    response_head_ = response_head;
+  }
+  void OnStartLoadingResponseBody(
+      mojo::ScopedDataPipeConsumerHandle body) override {
+    response_body_ = std::move(body);
+  }
+  void OnComplete(const ResourceRequestCompletionStatus& status) override {
+    has_received_completion_ = true;
+    completion_status_ = status;
+  }
+
+  bool has_received_response() const { return has_received_response_; }
+  bool has_received_completion() const { return has_received_completion_; }
+  const ResourceResponseHead& response_head() const { return response_head_; }
+  mojo::Handle response_body() { return response_body_.get(); }
+  const ResourceRequestCompletionStatus& completion_status() const {
+    return completion_status_;
+  }
+
+  mojom::URLLoaderClientPtr CreateInterfacePtrAndBind() {
+    return binding_.CreateInterfacePtrAndBind();
+  }
+
+ private:
+  mojo::Binding<mojom::URLLoaderClient> binding_;
+  ResourceResponseHead response_head_;
+  mojo::ScopedDataPipeConsumerHandle response_body_;
+  ResourceRequestCompletionStatus completion_status_;
+  bool has_received_response_ = false;
+  bool has_received_completion_ = false;
+};
+
+class TestURLRequestJobFactory : public net::URLRequestJobFactory {
+ public:
+  using Callback = base::Callback<net::URLRequestJob*(
+      const std::string& scheme,
+      net::URLRequest* request,
+      net::NetworkDelegate* network_delegate)>;
+
+  TestURLRequestJobFactory() : callback_(base::Bind(&ConstNull)) {}
+  void SetCallback(Callback callback) { callback_ = callback; }
+
+  net::URLRequestJob* MaybeCreateJobWithProtocolHandler(
+      const std::string& scheme,
+      net::URLRequest* request,
+      net::NetworkDelegate* delegate) const override {
+    return callback_.Run(scheme, request, delegate);
+  }
+
+  net::URLRequestJob* MaybeInterceptRedirect(
+      net::URLRequest* request,
+      net::NetworkDelegate* delegate,
+      const GURL& location) const override {
+    return nullptr;
+  }
+
+  net::URLRequestJob* MaybeInterceptResponse(
+      net::URLRequest* request,
+      net::NetworkDelegate* delegate) const override {
+    return nullptr;
+  }
+
+  bool IsHandledProtocol(const std::string& scheme) const override {
+    return true;
+  }
+
+  bool IsHandledURL(const GURL& url) const override { return true; }
+
+  bool IsSafeRedirectTarget(const GURL& location) const override {
+    return false;
+  }
+
+ private:
+  static net::URLRequestJob* ConstNull(const std::string& scheme,
+                                       net::URLRequest* request,
+                                       net::NetworkDelegate* delegate) {
+    return nullptr;
+  }
+
+  Callback callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestURLRequestJobFactory);
+};
+
+class URLLoaderFactoryImplTest : public ::testing::Test {
+ public:
+  URLLoaderFactoryImplTest()
+      : thread_bundle_(TestBrowserThreadBundle::IO_MAINLOOP),
+        browser_context_(new TestBrowserContext()),
+        resource_message_filter_(new ResourceMessageFilter(
+            0,
+            0,
+            nullptr,
+            nullptr,
+            nullptr,
+            nullptr,
+            base::Bind(&URLLoaderFactoryImplTest::GetContexts,
+                       base::Unretained(this)))) {
+    net::URLRequestContext* request_context =
+        browser_context_->GetResourceContext()->GetRequestContext();
+    job_factory_.reset(new TestURLRequestJobFactory());
+    request_context->set_job_factory(job_factory_.get());
+    request_context->set_network_delegate(&network_delegate_);
+
+    factory_impl_retainer_.reset(new URLLoaderFactoryImpl(
+        resource_message_filter_, mojo::GetProxy(&factory_)));
+    base::RunLoop().RunUntilIdle();
+  }
+
+  ~URLLoaderFactoryImplTest() override {
+    rdh_.CancelRequestsForProcess(resource_message_filter_->child_id());
+    base::RunLoop().RunUntilIdle();
+  }
+
+  void GetContexts(ResourceType resource_type,
+                   int origin_pid,
+                   ResourceContext** resource_context,
+                   net::URLRequestContext** request_context) {
+    *resource_context = browser_context_->GetResourceContext();
+    *request_context =
+        browser_context_->GetResourceContext()->GetRequestContext();
+  }
+
+  net::URLRequestJob* RecordURLRequest(const std::string& scheme,
+                                       net::URLRequest* request,
+                                       net::NetworkDelegate* delegate) {
+    url_request_job_factory_url_ = request->url();
+    url_request_job_factory_method_ = request->method();
+    return new net::URLRequestFailedJob(request, delegate, net::ERR_IO_PENDING);
+  }
+
+  static net::URLRequestJob* CreateSuccessfulJob(
+      const std::string& scheme,
+      net::URLRequest* request,
+      net::NetworkDelegate* delegate) {
+    return new net::URLRequestTestJob(request, delegate,
+                                      net::URLRequestTestJob::test_headers(),
+                                      "hello", true);
+  }
+
+  static net::URLRequestJob* CreateFailedJob(const std::string& scheme,
+                                             net::URLRequest* request,
+                                             net::NetworkDelegate* delegate) {
+    return new net::URLRequestFailedJob(request, delegate, net::ERR_FAILED);
+  }
+
+  TestBrowserThreadBundle thread_bundle_;
+  ResourceDispatcherHostImpl rdh_;
+  std::unique_ptr<TestBrowserContext> browser_context_;
+  std::unique_ptr<TestURLRequestJobFactory> job_factory_;
+  net::TestNetworkDelegate network_delegate_;
+  scoped_refptr<ResourceMessageFilter> resource_message_filter_;
+
+  mojom::URLLoaderFactoryPtr factory_;
+  std::unique_ptr<URLLoaderFactoryImpl> factory_impl_retainer_;
+
+  GURL url_request_job_factory_url_;
+  std::string url_request_job_factory_method_;
+};
+
+TEST_F(URLLoaderFactoryImplTest, Request) {
+  mojom::URLLoaderPtr loader;
+  factory_->CreateURLLoader(mojo::GetProxy(&loader));
+
+  job_factory_->SetCallback(base::Bind(
+      &URLLoaderFactoryImplTest::RecordURLRequest, base::Unretained(this)));
+
+  ResourceRequest request;
+  URLLoaderClientImpl client;
+  request.url = GURL("http://www.example.com/foo/bar");
+  request.method = "GET";
+  loader->Load(1, request, client.CreateInterfacePtrAndBind());
+
+  base::RunLoop().RunUntilIdle();
+  while (net::URLRequestTestJob::ProcessOnePendingMessage()) {
+  }
+  base::RunLoop().RunUntilIdle();
+
+  EXPECT_FALSE(client.has_received_response());
+  EXPECT_FALSE(client.has_received_completion());
+  EXPECT_FALSE(client.response_body().is_valid());
+  EXPECT_EQ(request.url, url_request_job_factory_url_);
+  EXPECT_EQ(request.method, url_request_job_factory_method_);
+}
+
+TEST_F(URLLoaderFactoryImplTest, GetResponse) {
+  mojom::URLLoaderPtr loader;
+  factory_->CreateURLLoader(mojo::GetProxy(&loader));
+
+  job_factory_->SetCallback(base::Bind(CreateSuccessfulJob));
+
+  ResourceRequest request;
+  URLLoaderClientImpl client;
+  request.url = GURL("http://www.example.com/");
+  request.method = "GET";
+  loader->Load(1, request, client.CreateInterfacePtrAndBind());
+
+  EXPECT_FALSE(client.has_received_response());
+  EXPECT_FALSE(client.has_received_completion());
+  base::RunLoop().RunUntilIdle();
+  while (net::URLRequestTestJob::ProcessOnePendingMessage()) {
+  }
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_TRUE(client.has_received_response());
+  EXPECT_EQ(200, client.response_head().headers->response_code());
+  std::string content_type;
+  client.response_head().headers->GetNormalizedHeader("content-type",
+                                                      &content_type);
+  EXPECT_EQ("text/html", content_type);
+
+  ASSERT_TRUE(client.has_received_completion());
+  EXPECT_TRUE(client.response_body().is_valid());
+  EXPECT_EQ(0, client.completion_status().error_code);
+}
+
+TEST_F(URLLoaderFactoryImplTest, GetFailedResponse) {
+  mojom::URLLoaderPtr loader;
+  factory_->CreateURLLoader(mojo::GetProxy(&loader));
+
+  job_factory_->SetCallback(base::Bind(CreateFailedJob));
+
+  ResourceRequest request;
+  URLLoaderClientImpl client;
+  request.url = GURL("http://www.example.com/");
+  request.method = "GET";
+  loader->Load(1, request, client.CreateInterfacePtrAndBind());
+
+  EXPECT_FALSE(client.has_received_response());
+  EXPECT_FALSE(client.has_received_completion());
+  base::RunLoop().RunUntilIdle();
+  while (net::URLRequestTestJob::ProcessOnePendingMessage()) {
+  }
+  base::RunLoop().RunUntilIdle();
+
+  ASSERT_FALSE(client.has_received_response());
+  ASSERT_TRUE(client.has_received_completion());
+  EXPECT_FALSE(client.response_body().is_valid());
+  EXPECT_EQ(net::ERR_FAILED, client.completion_status().error_code);
+}
+
+}  // namespace
+
+}  // namespace content