Add test for power_menu_button.

chrome/browser/chromeos/status/power_menu_button_browsertest.cc

 // Copyright (c) 2010 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/chromeos/status/clock_menu_button.h"
+#include "chrome/browser/chromeos/status/power_menu_button.h"
 
-#include "base/string_util.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_window.h"
+#include "chrome/browser/chromeos/cros/cros_in_process_browser_test.h"
+#include "chrome/browser/chromeos/cros/mock_power_library.h"
 #include "chrome/browser/chromeos/frame/browser_view.h"
 #include "chrome/browser/chromeos/status/browser_status_area_view.h"
 #include "chrome/browser/chromeos/view_ids.h"
-#include "chrome/browser/pref_member.h"
-#include "chrome/browser/profile.h"
-#include "chrome/common/pref_names.h"
-#include "chrome/test/in_process_browser_test.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "unicode/calendar.h"
-#include "unicode/timezone.h"
+#include "grit/theme_resources.h"
 
 namespace chromeos {
+using ::testing::AnyNumber;
+using ::testing::InvokeWithoutArgs;
+using ::testing::Return;
+using ::testing::ReturnRef;
+using ::testing::_;
 
-class ClockMenuButtonTest : public InProcessBrowserTest {
+class PowerMenuButtonTest : public CrosInProcessBrowserTest {
  protected:
-  ClockMenuButtonTest() : InProcessBrowserTest() {}
-  ClockMenuButton* GetClockMenuButton() {
+  PowerMenuButtonTest() : CrosInProcessBrowserTest() {}
+
+  PowerMenuButton* GetPowerMenuButton() {
     BrowserView* view = static_cast<BrowserView*>(browser()->window());
-    return static_cast<BrowserStatusAreaView*>(view->
-        GetViewByID(VIEW_ID_STATUS_AREA))->clock_view();
+    PowerMenuButton* power = static_cast<BrowserStatusAreaView*>(view->
+        GetViewByID(VIEW_ID_STATUS_AREA))->power_view();
+    return power;
+  }
+
+  int CallPowerChangedAndGetIconId() {
+    PowerMenuButton* power = GetPowerMenuButton();
+    power->PowerChanged(mock_power_library_);
+    return power->icon_id();
   }
 };
 
-IN_PROC_BROWSER_TEST_F(ClockMenuButtonTest, TimezoneTest) {
-  ClockMenuButton* clock = GetClockMenuButton();
-  ASSERT_TRUE(clock != NULL);
-  // Make sure clock has a calendar.
-  ASSERT_TRUE(clock->calendar() != NULL);
-  // Update timezone and make sure clock timezone changes.
-  icu::UnicodeString id;
-  clock->calendar()->getTimeZone().getID(id);
-  UErrorCode error = U_ZERO_ERROR;
-  int zone_offset = clock->calendar()->get(UCAL_ZONE_OFFSET, error);
-  StringPrefMember timezone;
-  timezone.Init(prefs::kTimeZone, browser()->profile()->GetPrefs(), NULL);
-  timezone.SetValue(ASCIIToWide("Asia/Hong_Kong"));
-  int zone_offset_after = clock->calendar()->get(UCAL_ZONE_OFFSET, error);
-  EXPECT_NE(zone_offset, zone_offset_after);
+IN_PROC_BROWSER_TEST_F(PowerMenuButtonTest, BatteryMissingTest) {
+  EXPECT_CALL(*mock_power_library_, battery_is_present())
+      .WillRepeatedly((Return(false)));
+  EXPECT_EQ(IDR_STATUSBAR_BATTERY_MISSING, CallPowerChangedAndGetIconId());
+}
+
+IN_PROC_BROWSER_TEST_F(PowerMenuButtonTest, BatteryChargedTest) {
+  EXPECT_CALL(*mock_power_library_, battery_is_present())
+      .WillRepeatedly((Return(true)));
+  EXPECT_CALL(*mock_power_library_, battery_fully_charged())
+      .WillRepeatedly((Return(true)));
+  EXPECT_CALL(*mock_power_library_, line_power_on())
+      .WillRepeatedly((Return(true)));
+  EXPECT_EQ(IDR_STATUSBAR_BATTERY_CHARGED, CallPowerChangedAndGetIconId());
+}
+
+IN_PROC_BROWSER_TEST_F(PowerMenuButtonTest, BatteryChargingTest) {
+  EXPECT_CALL(*mock_power_library_, battery_is_present())
+      .WillRepeatedly((Return(true)));
+  EXPECT_CALL(*mock_power_library_, battery_fully_charged())
+      .WillRepeatedly((Return(false)));
+  EXPECT_CALL(*mock_power_library_, line_power_on())
+      .WillRepeatedly((Return(true)));
+
+  // Test the 12 battery charging states.
+  int id = IDR_STATUSBAR_BATTERY_CHARGING_1;
+  for (float precent = 6.0; precent < 100.0; precent += 8.0) {
+    EXPECT_CALL(*mock_power_library_, battery_percentage())
+        .WillRepeatedly((Return(precent)));
+    EXPECT_EQ(id, CallPowerChangedAndGetIconId());

[zel, 2010/03/25 21:11:11]

This might not actually work the way you expect it. gMock will check all
conditions when you exit your test function, not when you exit for{} block. I
will ping you with a sample how what you want can be done.

+    id++;
+  }
+}
+
+IN_PROC_BROWSER_TEST_F(PowerMenuButtonTest, BatteryDischargingTest) {
+  EXPECT_CALL(*mock_power_library_, battery_is_present())
+      .WillRepeatedly((Return(true)));
+  EXPECT_CALL(*mock_power_library_, battery_fully_charged())
+      .WillRepeatedly((Return(false)));
+  EXPECT_CALL(*mock_power_library_, line_power_on())
+      .WillRepeatedly((Return(false)));
+
+  // Test the 12 battery discharing states.
+  int id = IDR_STATUSBAR_BATTERY_DISCHARGING_1;
+  for (float precent = 6.0; precent < 100.0; precent += 8.0) {
+    EXPECT_CALL(*mock_power_library_, battery_percentage())
+        .WillRepeatedly((Return(precent)));
+    EXPECT_EQ(id, CallPowerChangedAndGetIconId());
+    id++;
+  }
 }
 
 }  // namespace chromeos