Add UploadProgressTracker unittest

content/browser/loader/upload_progress_tracker_unittest.cc

+// Copyright 2017 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/upload_progress_tracker.h"
+
+#include "base/test/test_simple_task_runner.h"
+#include "net/base/upload_progress.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using testing::_;
+using testing::Return;
+
+namespace content {
+namespace {
+
+class MockUploadProgressTrackerClient : public UploadProgressTracker::Client {
+ public:
+  MockUploadProgressTrackerClient() {}
+  ~MockUploadProgressTrackerClient() override {}
+
+  MOCK_METHOD0(GetUploadProgress, net::UploadProgress());
+  MOCK_METHOD2(ReportUploadProgress, void(int64_t, int64_t));

[mmenke, 2017/01/06 15:54:53]

I'd recommend against using gmock - it generally makes code significantly more
obscure, and adds a higher barried to working on Chrome.  There are some cases
where it's just much simpler to use it, but doesn't seem needed here.

[tzik, 2017/01/10 06:54:41]

Done.

+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockUploadProgressTrackerClient);
+};
+
+}  // namespace
+
+class UploadProgressTrackerTest : public ::testing::Test {
+ public:
+  UploadProgressTrackerTest()
+      : task_runner_(new base::TestSimpleTaskRunner),
+        upload_progress_tracker_(FROM_HERE, &tracker_client_, task_runner_) {}
+
+ protected:
+  scoped_refptr<base::TestSimpleTaskRunner> task_runner_;
+  testing::StrictMock<MockUploadProgressTrackerClient> tracker_client_;
+  UploadProgressTracker upload_progress_tracker_;
+};
+
+TEST_F(UploadProgressTrackerTest, NoACK) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .WillOnce(Return(net::UploadProgress(50, 100)));
+  EXPECT_CALL(tracker_client_, ReportUploadProgress(_, _)).Times(1);
+
+  // The first timer task calls ReportUploadProgress.
+  task_runner_->RunPendingTasks();
+
+  // The second timer task does nothing, since the first task didn't send ACK.
+  task_runner_->RunPendingTasks();
+}
+
+TEST_F(UploadProgressTrackerTest, NoUpload) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .WillRepeatedly(Return(net::UploadProgress(0, 0)));
+
+  // UploadProgressTracker does nothing on the empty upload content.
+  task_runner_->RunPendingTasks();
+}
+
+TEST_F(UploadProgressTrackerTest, NoProgress) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .Times(2)
+      .WillRepeatedly(Return(net::UploadProgress(50, 100)));
+  EXPECT_CALL(tracker_client_, ReportUploadProgress(_, _)).Times(1);
+
+  // The first timer task calls ReportUploadProgress.
+  task_runner_->RunPendingTasks();
+
+  upload_progress_tracker_.OnAckReceived();
+
+  // The second time doesn't call ReportUploadProgress since there's no
+  // progress.
+  task_runner_->RunPendingTasks();
+}
+
+TEST_F(UploadProgressTrackerTest, Finished) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .WillOnce(Return(net::UploadProgress(999, 1000)))
+      .WillOnce(Return(net::UploadProgress(1000, 1000)));
+  EXPECT_CALL(tracker_client_, ReportUploadProgress(_, _)).Times(2);
+
+  // The first timer task calls ReportUploadProgress.
+  task_runner_->RunPendingTasks();
+
+  upload_progress_tracker_.OnAckReceived();
+
+  // The second timer task calls ReportUploadProgress for reporting the
+  // completion.
+  task_runner_->RunPendingTasks();
+}
+
+TEST_F(UploadProgressTrackerTest, Progress) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .WillOnce(Return(net::UploadProgress(50, 100)))
+      .WillOnce(Return(net::UploadProgress(75, 100)));
+  EXPECT_CALL(tracker_client_, ReportUploadProgress(_, _)).Times(2);
+
+  // The first timer task calls ReportUploadProgress.
+  task_runner_->RunPendingTasks();
+
+  upload_progress_tracker_.OnAckReceived();
+
+  // The second timer task calls ReportUploadProgress since the progress is
+  // big enough to report.
+  task_runner_->RunPendingTasks();
+}
+
+TEST_F(UploadProgressTrackerTest, TimePassed) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .WillOnce(Return(net::UploadProgress(500, 1000)))
+      .WillOnce(Return(net::UploadProgress(501, 1000)));
+  EXPECT_CALL(tracker_client_, ReportUploadProgress(_, _)).Times(2);
+
+  // The first timer task calls ReportUploadProgress.
+  task_runner_->RunPendingTasks();
+
+  upload_progress_tracker_.OnAckReceived();
+  upload_progress_tracker_.SetLastUploadTicksForTesting(base::TimeTicks());
+
+  // The second timer task calls ReportUploadProgress since it's been long time
+  // from the last report.
+  task_runner_->RunPendingTasks();
+}
+
+TEST_F(UploadProgressTrackerTest, Completed) {
+  EXPECT_CALL(tracker_client_, GetUploadProgress())
+      .WillOnce(Return(net::UploadProgress(50, 100)))
+      .WillOnce(Return(net::UploadProgress(100, 100)));
+  EXPECT_CALL(tracker_client_, ReportUploadProgress(_, _)).Times(2);
+
+  // The first timer task calls ReportUploadProgress.
+  task_runner_->RunPendingTasks();
+
+  // OnUploadCompleted runs ReportUploadProgress even without Ack nor timer.
+  upload_progress_tracker_.OnUploadCompleted();
+}
+
+}  // namespace context