[Offline pages] Introduction of MarkAttemptStartedTask with tests

components/offline_pages/background/mark_attempt_started_task_unittest.cc

Index: components/offline_pages/background/mark_attempt_started_task_unittest.cc
diff --git a/components/offline_pages/background/mark_attempt_started_task_unittest.cc b/components/offline_pages/background/mark_attempt_started_task_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3e770c872a05a393a9bbeee87eadcac9d02f4366
--- /dev/null
+++ b/components/offline_pages/background/mark_attempt_started_task_unittest.cc
@@ -0,0 +1,135 @@
+// 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 "components/offline_pages/background/mark_attempt_started_task.h"
+
+#include <memory>
+
+#include "base/bind.h"
+#include "base/test/test_simple_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
+#include "components/offline_pages/background/request_queue_in_memory_store.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace offline_pages {
+namespace {
+const int64_t kRequestId1 = 42;
+const int64_t kRequestId2 = 44;
+const GURL kUrl1("http://example.com");
+const ClientId kClientId1("download", "1234");
+}  // namespace
+
+class MarkAttemptStartedTaskTest : public testing::Test {
+ public:
+  MarkAttemptStartedTaskTest();
+  ~MarkAttemptStartedTaskTest() override;
+
+  void PumpLoop();
+
+  void AddItemToStore(RequestQueueStore* store);
+
+  void AddRequestDone(ItemActionStatus status);
+
+  void ChangeRequestsStateCallback(
+      std::unique_ptr<UpdateRequestsResult> result);
+
+  UpdateRequestsResult* last_result() const { return result_.get(); }
+
+ private:
+  std::unique_ptr<UpdateRequestsResult> result_;
+  scoped_refptr<base::TestSimpleTaskRunner> task_runner_;
+  base::ThreadTaskRunnerHandle task_runner_handle_;
+};
+
+MarkAttemptStartedTaskTest::MarkAttemptStartedTaskTest()
+    : task_runner_(new base::TestSimpleTaskRunner),
+      task_runner_handle_(task_runner_) {}
+
+MarkAttemptStartedTaskTest::~MarkAttemptStartedTaskTest() {}
+
+void MarkAttemptStartedTaskTest::PumpLoop() {
+  task_runner_->RunUntilIdle();
+}
+
+void MarkAttemptStartedTaskTest::AddItemToStore(RequestQueueStore* store) {
+  base::Time creation_time = base::Time::Now();
+  SavePageRequest request_1(kRequestId1, kUrl1, kClientId1, creation_time,
+                            true);
+  store->AddRequest(request_1,
+                    base::Bind(&MarkAttemptStartedTaskTest::AddRequestDone,
+                               base::Unretained(this)));
+  PumpLoop();
+}
+
+void MarkAttemptStartedTaskTest::AddRequestDone(ItemActionStatus status) {
+  ASSERT_EQ(ItemActionStatus::SUCCESS, status);
+}
+
+void MarkAttemptStartedTaskTest::ChangeRequestsStateCallback(
+    std::unique_ptr<UpdateRequestsResult> result) {
+  result_ = std::move(result);
+}
+
+TEST_F(MarkAttemptStartedTaskTest, MarkAttemptStartedWhenStoreEmpty) {
+  RequestQueueInMemoryStore store;
+  MarkAttemptStartedTask task(
+      &store, kRequestId1,
+      base::Bind(&MarkAttemptStartedTaskTest::ChangeRequestsStateCallback,
+                 base::Unretained(this)));
+  task.Run();
+  PumpLoop();
+  ASSERT_TRUE(last_result());
+  EXPECT_EQ(1UL, last_result()->item_statuses.size());
+  EXPECT_EQ(kRequestId1, last_result()->item_statuses.at(0).first);
+  EXPECT_EQ(ItemActionStatus::NOT_FOUND,
+            last_result()->item_statuses.at(0).second);
+  EXPECT_EQ(0UL, last_result()->updated_items.size());
+}
+
+TEST_F(MarkAttemptStartedTaskTest, MarkAttemptStartedWhenExists) {
+  RequestQueueInMemoryStore store;
+  AddItemToStore(&store);
+
+  MarkAttemptStartedTask task(
+      &store, kRequestId1,
+      base::Bind(&MarkAttemptStartedTaskTest::ChangeRequestsStateCallback,
+                 base::Unretained(this)));
+
+  // Current time for verification.
+  base::Time before_time = base::Time::Now();
+  task.Run();
+  PumpLoop();
+  ASSERT_TRUE(last_result());
+  EXPECT_EQ(1UL, last_result()->item_statuses.size());
+  EXPECT_EQ(kRequestId1, last_result()->item_statuses.at(0).first);
+  EXPECT_EQ(ItemActionStatus::SUCCESS,
+            last_result()->item_statuses.at(0).second);
+  EXPECT_EQ(1UL, last_result()->updated_items.size());
+  EXPECT_LE(before_time,
+            last_result()->updated_items.at(0).last_attempt_time());
+  EXPECT_GE(base::Time::Now(),
+            last_result()->updated_items.at(0).last_attempt_time());
+  EXPECT_EQ(1, last_result()->updated_items.at(0).started_attempt_count());
+  EXPECT_EQ(SavePageRequest::RequestState::PRERENDERING,
+            last_result()->updated_items.at(0).request_state());
+}
+
+TEST_F(MarkAttemptStartedTaskTest, MarkAttemptStartedWhenItemMissing) {
+  RequestQueueInMemoryStore store;
+  AddItemToStore(&store);
+  MarkAttemptStartedTask task(
+      &store, kRequestId2,
+      base::Bind(&MarkAttemptStartedTaskTest::ChangeRequestsStateCallback,
+                 base::Unretained(this)));
+  task.Run();
+  PumpLoop();
+  ASSERT_TRUE(last_result());
+  EXPECT_EQ(1UL, last_result()->item_statuses.size());
+  EXPECT_EQ(kRequestId2, last_result()->item_statuses.at(0).first);
+  EXPECT_EQ(ItemActionStatus::NOT_FOUND,
+            last_result()->item_statuses.at(0).second);
+  EXPECT_EQ(0UL, last_result()->updated_items.size());
+}
+
+}  // namespace offline_pages