| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.unit_tests.os; |
| |
| import android.content.Context; |
| import android.os.PowerManager; |
| import android.test.AndroidTestCase; |
| import android.test.suitebuilder.annotation.MediumTest; |
| |
| public class PowerManagerTest extends AndroidTestCase { |
| |
| private PowerManager mPm; |
| |
| /** |
| * Setup any common data for the upcoming tests. |
| */ |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| mPm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); |
| } |
| |
| /** |
| * Confirm that the setup is good. |
| * |
| * @throws Exception |
| */ |
| @MediumTest |
| public void testPreconditions() throws Exception { |
| assertNotNull(mPm); |
| } |
| |
| /** |
| * Confirm that we can create functional wakelocks. |
| * |
| * @throws Exception |
| */ |
| @MediumTest |
| public void testNewWakeLock() throws Exception { |
| PowerManager.WakeLock wl = mPm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "FULL_WAKE_LOCK"); |
| doTestWakeLock(wl); |
| |
| wl = mPm.newWakeLock(PowerManager.SCREEN_BRIGHT_WAKE_LOCK, "SCREEN_BRIGHT_WAKE_LOCK"); |
| doTestWakeLock(wl); |
| |
| wl = mPm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK, "SCREEN_DIM_WAKE_LOCK"); |
| doTestWakeLock(wl); |
| |
| wl = mPm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "PARTIAL_WAKE_LOCK"); |
| doTestWakeLock(wl); |
| |
| doTestSetBacklightBrightness(); |
| |
| // TODO: Some sort of functional test (maybe not in the unit test here?) |
| // that confirms that things are really happening e.g. screen power, keyboard power. |
| } |
| |
| /** |
| * Confirm that we can't create dysfunctional wakelocks. |
| * |
| * @throws Exception |
| */ |
| @MediumTest |
| public void testBadNewWakeLock() throws Exception { |
| |
| final int badFlags = PowerManager.SCREEN_BRIGHT_WAKE_LOCK |
| | PowerManager.SCREEN_DIM_WAKE_LOCK; |
| // wrap in try because we want the error here |
| try { |
| PowerManager.WakeLock wl = mPm.newWakeLock(badFlags, "foo"); |
| } catch (IllegalArgumentException e) { |
| return; |
| } |
| fail("Bad WakeLock flag was not caught."); |
| } |
| |
| /** |
| * Apply a few tests to a wakelock to make sure it's healthy. |
| * |
| * @param wl The wakelock to be tested. |
| */ |
| private void doTestWakeLock(PowerManager.WakeLock wl) { |
| // First try simple acquire/release |
| wl.acquire(); |
| assertTrue(wl.isHeld()); |
| wl.release(); |
| assertFalse(wl.isHeld()); |
| |
| // Try ref-counted acquire/release |
| wl.setReferenceCounted(true); |
| wl.acquire(); |
| assertTrue(wl.isHeld()); |
| wl.acquire(); |
| assertTrue(wl.isHeld()); |
| wl.release(); |
| assertTrue(wl.isHeld()); |
| wl.release(); |
| assertFalse(wl.isHeld()); |
| |
| // Try non-ref-counted |
| wl.setReferenceCounted(false); |
| wl.acquire(); |
| assertTrue(wl.isHeld()); |
| wl.acquire(); |
| assertTrue(wl.isHeld()); |
| wl.release(); |
| assertFalse(wl.isHeld()); |
| |
| // TODO: Threaded test (needs handler) to make sure timed wakelocks work too |
| } |
| |
| |
| /** |
| * Test that calling {@link android.os.IHardwareService#setBacklights(int)} requires |
| * permissions. |
| * <p>Tests permission: |
| * {@link android.Manifest.permission#DEVICE_POWER} |
| */ |
| private void doTestSetBacklightBrightness() { |
| try { |
| mPm.setBacklightBrightness(0); |
| fail("setBacklights did not throw SecurityException as expected"); |
| } catch (SecurityException e) { |
| // expected |
| } |
| } |
| |
| } |