components/component_updater/timer_unittest.cc

   1 // Copyright 2015 The Chromium Authors
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include <string>
   6 #include <utility>
   7
   8 #include "base/functional/bind.h"
   9 #include "base/run_loop.h"
  10 #include "base/test/task_environment.h"
  11 #include "base/time/time.h"
  12 #include "components/component_updater/timer.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14
  15 namespace component_updater {
  16
  17 class ComponentUpdaterTimerTest : public testing::Test {
  18  public:
  19   ComponentUpdaterTimerTest()
  20       : task_environment_(
  21             base::test::SingleThreadTaskEnvironment::MainThreadType::UI) {}
  22   ~ComponentUpdaterTimerTest() override = default;
  23
  24  private:
  25   base::test::SingleThreadTaskEnvironment task_environment_;
  26 };
  27
  28 TEST_F(ComponentUpdaterTimerTest, Start) {
  29   class TimerClientMock {
  30    public:
  31     TimerClientMock(int max_count, base::OnceClosure quit_closure)
  32         : max_count_(max_count),
  33           quit_closure_(std::move(quit_closure)),
  34           count_(0) {}
  35
  36     void OnTimerEvent() {
  37       ++count_;
  38       if (count_ >= max_count_)
  39         std::move(quit_closure_).Run();
  40     }
  41
  42     int count() const { return count_; }
  43
  44    private:
  45     const int max_count_;
  46     base::OnceClosure quit_closure_;
  47
  48     int count_;
  49   };
  50
  51   base::RunLoop run_loop;
  52   TimerClientMock timer_client_fake(3, run_loop.QuitClosure());
  53   EXPECT_EQ(0, timer_client_fake.count());
  54
  55   Timer timer;
  56   const base::TimeDelta delay(base::Milliseconds(1));
  57   timer.Start(delay, delay,
  58               base::BindRepeating(&TimerClientMock::OnTimerEvent,
  59                                   base::Unretained(&timer_client_fake)));
  60   run_loop.Run();
  61   timer.Stop();
  62
  63   EXPECT_EQ(3, timer_client_fake.count());
  64 }
  65
  66 }  // namespace component_updater