Updates to PrerenderingOffliner and PrerenderingLoader interfaces to push PrerenderManager knowledge

chrome/browser/android/offline_pages/prerendering_offliner_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 "chrome/browser/android/offline_pages/prerendering_offliner.h"
+
+#include <memory>
+
+#include "base/bind.h"
+#include "chrome/browser/android/offline_pages/prerendering_loader.h"
+#include "components/offline_pages/background/offliner.h"
+#include "components/offline_pages/background/save_page_request.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace offline_pages {
+
+namespace {
+const int64_t kRequestId = 7;
+const GURL kHttpUrl("http://tunafish.com");
+const GURL kFileUrl("file://sailfish.png");
+const ClientId kClientId("AsyncLoading", "88");
+
+// Mock Loader for testing the Offliner calls.
+class MockPrerenderingLoader : public PrerenderingLoader {
+ public:
+  explicit MockPrerenderingLoader(content::BrowserContext* browser_context)
+      : PrerenderingLoader(browser_context), mock_loading_(false) {}
+  ~MockPrerenderingLoader() override {}
+
+  bool LoadPage(const GURL& url, const LoadPageCallback& callback) override {
+    mock_loading_ = true;
+    return mock_loading_;
+  }
+
+  void StopLoading() override { mock_loading_ = false; }
+
+  bool mock_loading() const { return mock_loading_; }
+
+ private:
+  bool mock_loading_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockPrerenderingLoader);
+};
+
+}  // namespace
+
+class PrerenderingOfflinerTest : public testing::Test {
+ public:
+  PrerenderingOfflinerTest();
+  ~PrerenderingOfflinerTest() override;
+
+  void SetUp() override;
+
+  PrerenderingOffliner* offliner() const { return offliner_.get(); }
+  Offliner::CompletionCallback callback() {

[fgorski, 2016/05/10 03:52:43]

this can be a const function

[dougarnett, 2016/05/10 15:30:19]

Done.

+    return base::Bind(&PrerenderingOfflinerTest::OnCompletion,
+                      base::Unretained(this));
+  }
+
+  bool loading() const { return loader_->mock_loading(); }
+  Offliner::CompletionStatus completion_status() { return completion_status_; }

[fgorski, 2016/05/10 03:52:43]

this can be a const function as well

[dougarnett, 2016/05/10 15:30:19]

Done.

+
+ private:
+  void OnCompletion(const SavePageRequest& request,
+                    Offliner::CompletionStatus status);
+
+  std::unique_ptr<PrerenderingOffliner> offliner_;
+  // Not owned.
+  MockPrerenderingLoader* loader_;

[fgorski, 2016/05/10 03:52:43]

I think this is OK. You should be able to work with this.

Do you plan to allow inspection of input parameters using mock loader?

[dougarnett, 2016/05/10 15:30:19]

I plan to access the LoadPageCallback but wasn't that concerned about verifying
the same url is passed through but would be easy enough to do. 

+  Offliner::CompletionStatus completion_status_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrerenderingOfflinerTest);
+};
+
+PrerenderingOfflinerTest::PrerenderingOfflinerTest() {}
+
+PrerenderingOfflinerTest::~PrerenderingOfflinerTest() {}
+
+void PrerenderingOfflinerTest::SetUp() {
+  offliner_.reset(new PrerenderingOffliner(nullptr, nullptr, nullptr));
+  std::unique_ptr<MockPrerenderingLoader> mock_loader(
+      new MockPrerenderingLoader(nullptr));
+  loader_ = mock_loader.get();
+  offliner_->SetLoaderForTesting(std::move(mock_loader));
+  //  loader_ =
+  //  static_cast<MockPrerenderingLoader*>(offliner_->GetLoaderForTesting());
+  //  offliner_.reset(
+  //      new TestPrerenderingOffliner(nullptr, nullptr, nullptr,
+  //      std::move(mock_loader)));
+}
+
+void PrerenderingOfflinerTest::OnCompletion(const SavePageRequest& request,
+                                            Offliner::CompletionStatus status) {
+  completion_status_ = status;
+}
+
+// Tests initiate loading.
+TEST_F(PrerenderingOfflinerTest, LoadAndSaveBadUrl) {
+  base::Time creation_time = base::Time::Now();
+  SavePageRequest request(kRequestId, kFileUrl, kClientId, creation_time);
+  EXPECT_FALSE(offliner()->LoadAndSave(request, callback()));
+  EXPECT_FALSE(loading());
+}
+
+// Tests initiate loading.
+TEST_F(PrerenderingOfflinerTest, LoadAndSaveStartsLoading) {
+  base::Time creation_time = base::Time::Now();
+  SavePageRequest request(kRequestId, kHttpUrl, kClientId, creation_time);
+  EXPECT_TRUE(offliner()->LoadAndSave(request, callback()));
+  EXPECT_TRUE(loading());
+}
+
+// Tests cancels loading.
+TEST_F(PrerenderingOfflinerTest, CancelLoading) {
+  base::Time creation_time = base::Time::Now();
+  SavePageRequest request(kRequestId, kHttpUrl, kClientId, creation_time);
+  EXPECT_TRUE(offliner()->LoadAndSave(request, callback()));
+  EXPECT_TRUE(loading());
+
+  offliner()->Cancel();
+  EXPECT_FALSE(loading());
+}
+
+}  // namespace offline_pages