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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/accelerators/accelerator_tracker.h"
#include "ash/test/ash_test_base.h"
#include "base/strings/string_piece_forward.h"
#include "base/test/metrics/user_action_tester.h"
namespace ash {
using AcceleratorTrackerTest = AshTestBase;
constexpr base::StringPiece kUserActionPrefix = "AccelTracker_";
// Tests user action string starts with "AccelTracker_". The user action
// string locates in the kAcceleratorTrackerList table in accelerator_tracker.h
// file. Please make sure the user action strings in the table have this prefix.
TEST_F(AcceleratorTrackerTest, UserActionPrefix) {
for (const auto& [_, user_action_name] : kAcceleratorTrackerList) {
EXPECT_TRUE(base::StartsWith(user_action_name, kUserActionPrefix));
}
}
// Tests AcceleratorTracker will only record key events that are in the
// initialized accelerator tracker map.
TEST_F(AcceleratorTrackerTest, TrackKeyEvent) {
constexpr ui::KeyboardCode intended_key_code = ui::VKEY_A;
constexpr ui::EventFlags intended_modifier =
ui::EF_CONTROL_DOWN | ui::EF_SHIFT_DOWN;
constexpr base::StringPiece intended_user_action =
"AccelTracker_Ctrl_Shift_A";
constexpr TrackerDataActionPair kAcceleratorTrackerListForTesting[] = {
{{KeyState::PRESSED, intended_key_code, intended_modifier},
intended_user_action},
};
AcceleratorTracker accelerator_tracker(kAcceleratorTrackerListForTesting);
base::UserActionTester user_action_tester;
// The metric is not recorded before the event is fired.
EXPECT_EQ(0, user_action_tester.GetActionCount(intended_user_action));
// The metric is recorded after the event is fired.
ui::KeyEvent key_event(ui::ET_KEY_PRESSED, intended_key_code,
intended_modifier);
accelerator_tracker.OnKeyEvent(&key_event);
EXPECT_EQ(1, user_action_tester.GetActionCount(intended_user_action));
// Fire a similar key event won't trigger this metric.
// An event with same key code and modifier, but different key states.
ui::KeyEvent key_event1(ui::ET_KEY_RELEASED, intended_key_code,
intended_modifier);
accelerator_tracker.OnKeyEvent(&key_event1);
EXPECT_EQ(1, user_action_tester.GetActionCount(intended_user_action));
// An event with same key code and key state, but superset of modifiers.
ui::KeyEvent key_event2(ui::ET_KEY_PRESSED, intended_key_code,
intended_modifier | ui::EF_ALT_DOWN);
accelerator_tracker.OnKeyEvent(&key_event2);
EXPECT_EQ(1, user_action_tester.GetActionCount(intended_user_action));
// An event with same key code and key state, but subset of modifiers.
ui::KeyEvent key_event3(ui::ET_KEY_PRESSED, intended_key_code,
ui::EF_CONTROL_DOWN);
accelerator_tracker.OnKeyEvent(&key_event3);
EXPECT_EQ(1, user_action_tester.GetActionCount(intended_user_action));
// An event with same key code and key state, but different modifiers.
ui::KeyEvent key_event4(ui::ET_KEY_PRESSED, intended_key_code,
ui::EF_ALT_DOWN);
accelerator_tracker.OnKeyEvent(&key_event4);
EXPECT_EQ(1, user_action_tester.GetActionCount(intended_user_action));
// An event with same key state and modifiers, but different key codes.
ui::KeyEvent key_event5(ui::ET_KEY_PRESSED, ui::VKEY_B, intended_modifier);
accelerator_tracker.OnKeyEvent(&key_event5);
EXPECT_EQ(1, user_action_tester.GetActionCount(intended_user_action));
}
} // namespace ash
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