| /* |
| * Copyright (C) 2009 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.common; |
| |
| import android.content.SharedPreferences; |
| import android.test.AndroidTestCase; |
| import android.test.suitebuilder.annotation.MediumTest; |
| import android.test.suitebuilder.annotation.SmallTest; |
| |
| public class OperationSchedulerTest extends AndroidTestCase { |
| /** |
| * OperationScheduler subclass which uses an artificial time. |
| * Set {@link #timeMillis} to whatever value you like. |
| */ |
| private class TimeTravelScheduler extends OperationScheduler { |
| static final long DEFAULT_TIME = 1250146800000L; // 13-Aug-2009, 12:00:00 am |
| public long timeMillis = DEFAULT_TIME; |
| |
| @Override |
| protected long currentTimeMillis() { return timeMillis; } |
| public TimeTravelScheduler() { super(getFreshStorage()); } |
| } |
| |
| private SharedPreferences getFreshStorage() { |
| SharedPreferences sp = getContext().getSharedPreferences("OperationSchedulerTest", 0); |
| sp.edit().clear().commit(); |
| return sp; |
| } |
| |
| @MediumTest |
| public void testScheduler() throws Exception { |
| TimeTravelScheduler scheduler = new TimeTravelScheduler(); |
| OperationScheduler.Options options = new OperationScheduler.Options(); |
| assertEquals(Long.MAX_VALUE, scheduler.getNextTimeMillis(options)); |
| assertEquals(0, scheduler.getLastSuccessTimeMillis()); |
| assertEquals(0, scheduler.getLastAttemptTimeMillis()); |
| |
| long beforeTrigger = scheduler.timeMillis; |
| scheduler.setTriggerTimeMillis(beforeTrigger + 1000000); |
| assertEquals(beforeTrigger + 1000000, scheduler.getNextTimeMillis(options)); |
| |
| // It will schedule for the later of the trigger and the moratorium... |
| scheduler.setMoratoriumTimeMillis(beforeTrigger + 500000); |
| assertEquals(beforeTrigger + 1000000, scheduler.getNextTimeMillis(options)); |
| scheduler.setMoratoriumTimeMillis(beforeTrigger + 1500000); |
| assertEquals(beforeTrigger + 1500000, scheduler.getNextTimeMillis(options)); |
| |
| // Test enable/disable toggle |
| scheduler.setEnabledState(false); |
| assertEquals(Long.MAX_VALUE, scheduler.getNextTimeMillis(options)); |
| scheduler.setEnabledState(true); |
| assertEquals(beforeTrigger + 1500000, scheduler.getNextTimeMillis(options)); |
| |
| // Backoff interval after an error |
| long beforeError = (scheduler.timeMillis += 100); |
| scheduler.onTransientError(); |
| assertEquals(0, scheduler.getLastSuccessTimeMillis()); |
| assertEquals(beforeError, scheduler.getLastAttemptTimeMillis()); |
| assertEquals(beforeTrigger + 1500000, scheduler.getNextTimeMillis(options)); |
| options.backoffFixedMillis = 1000000; |
| options.backoffIncrementalMillis = 500000; |
| assertEquals(beforeError + 1500000, scheduler.getNextTimeMillis(options)); |
| |
| // Two errors: backoff interval increases |
| beforeError = (scheduler.timeMillis += 100); |
| scheduler.onTransientError(); |
| assertEquals(beforeError, scheduler.getLastAttemptTimeMillis()); |
| assertEquals(beforeError + 2000000, scheduler.getNextTimeMillis(options)); |
| |
| // Reset transient error: no backoff interval |
| scheduler.resetTransientError(); |
| assertEquals(0, scheduler.getLastSuccessTimeMillis()); |
| assertEquals(beforeTrigger + 1500000, scheduler.getNextTimeMillis(options)); |
| assertEquals(beforeError, scheduler.getLastAttemptTimeMillis()); |
| |
| // Permanent error holds true even if transient errors are reset |
| // However, we remember that the transient error was reset... |
| scheduler.onPermanentError(); |
| assertEquals(Long.MAX_VALUE, scheduler.getNextTimeMillis(options)); |
| scheduler.resetTransientError(); |
| assertEquals(Long.MAX_VALUE, scheduler.getNextTimeMillis(options)); |
| scheduler.resetPermanentError(); |
| assertEquals(beforeTrigger + 1500000, scheduler.getNextTimeMillis(options)); |
| |
| // Success resets the trigger |
| long beforeSuccess = (scheduler.timeMillis += 100); |
| scheduler.onSuccess(); |
| assertEquals(beforeSuccess, scheduler.getLastAttemptTimeMillis()); |
| assertEquals(beforeSuccess, scheduler.getLastSuccessTimeMillis()); |
| assertEquals(Long.MAX_VALUE, scheduler.getNextTimeMillis(options)); |
| |
| // The moratorium is not reset by success! |
| scheduler.setTriggerTimeMillis(0); |
| assertEquals(beforeTrigger + 1500000, scheduler.getNextTimeMillis(options)); |
| scheduler.setMoratoriumTimeMillis(0); |
| assertEquals(beforeSuccess, scheduler.getNextTimeMillis(options)); |
| |
| // Periodic interval after success |
| options.periodicIntervalMillis = 250000; |
| scheduler.setTriggerTimeMillis(Long.MAX_VALUE); |
| assertEquals(beforeSuccess + 250000, scheduler.getNextTimeMillis(options)); |
| |
| // Trigger minimum is also since the last success |
| options.minTriggerMillis = 1000000; |
| assertEquals(beforeSuccess + 1000000, scheduler.getNextTimeMillis(options)); |
| } |
| |
| @SmallTest |
| public void testParseOptions() throws Exception { |
| OperationScheduler.Options options = new OperationScheduler.Options(); |
| assertEquals( |
| "OperationScheduler.Options[backoff=0.0+5.0 max=86400.0 min=0.0 period=3600.0]", |
| OperationScheduler.parseOptions("3600", options).toString()); |
| |
| assertEquals( |
| "OperationScheduler.Options[backoff=0.0+2.5 max=86400.0 min=0.0 period=3700.0]", |
| OperationScheduler.parseOptions("backoff=+2.5 3700", options).toString()); |
| |
| assertEquals( |
| "OperationScheduler.Options[backoff=10.0+2.5 max=12345.6 min=7.0 period=3800.0]", |
| OperationScheduler.parseOptions("max=12345.6 min=7 backoff=10 period=3800", |
| options).toString()); |
| |
| assertEquals( |
| "OperationScheduler.Options[backoff=10.0+2.5 max=12345.6 min=7.0 period=3800.0]", |
| OperationScheduler.parseOptions("", options).toString()); |
| } |
| |
| @SmallTest |
| public void testMoratoriumWithHttpDate() throws Exception { |
| TimeTravelScheduler scheduler = new TimeTravelScheduler(); |
| OperationScheduler.Options options = new OperationScheduler.Options(); |
| |
| long beforeTrigger = scheduler.timeMillis; |
| scheduler.setTriggerTimeMillis(beforeTrigger + 1000000); |
| assertEquals(beforeTrigger + 1000000, scheduler.getNextTimeMillis(options)); |
| |
| scheduler.setMoratoriumTimeMillis(beforeTrigger + 2000000); |
| assertEquals(beforeTrigger + 2000000, scheduler.getNextTimeMillis(options)); |
| |
| long beforeMoratorium = scheduler.timeMillis; |
| assertTrue(scheduler.setMoratoriumTimeHttp("3000")); |
| long afterMoratorium = scheduler.timeMillis; |
| assertTrue(beforeMoratorium + 3000000 <= scheduler.getNextTimeMillis(options)); |
| assertTrue(afterMoratorium + 3000000 >= scheduler.getNextTimeMillis(options)); |
| |
| options.maxMoratoriumMillis = Long.MAX_VALUE / 2; |
| assertTrue(scheduler.setMoratoriumTimeHttp("Fri, 31 Dec 2030 23:59:59 GMT")); |
| assertEquals(1924991999000L, scheduler.getNextTimeMillis(options)); |
| |
| assertFalse(scheduler.setMoratoriumTimeHttp("not actually a date")); |
| } |
| |
| @SmallTest |
| public void testClockRollbackScenario() throws Exception { |
| TimeTravelScheduler scheduler = new TimeTravelScheduler(); |
| OperationScheduler.Options options = new OperationScheduler.Options(); |
| options.minTriggerMillis = 2000; |
| |
| // First, set up a scheduler with reasons to wait: a transient |
| // error with backoff and a moratorium for a few minutes. |
| |
| long beforeTrigger = scheduler.timeMillis; |
| long triggerTime = beforeTrigger - 10000000; |
| scheduler.setTriggerTimeMillis(triggerTime); |
| assertEquals(triggerTime, scheduler.getNextTimeMillis(options)); |
| assertEquals(0, scheduler.getLastAttemptTimeMillis()); |
| |
| long beforeSuccess = (scheduler.timeMillis += 100); |
| scheduler.onSuccess(); |
| scheduler.setTriggerTimeMillis(triggerTime); |
| assertEquals(beforeSuccess, scheduler.getLastAttemptTimeMillis()); |
| assertEquals(beforeSuccess + 2000, scheduler.getNextTimeMillis(options)); |
| |
| long beforeError = (scheduler.timeMillis += 100); |
| scheduler.onTransientError(); |
| assertEquals(beforeError, scheduler.getLastAttemptTimeMillis()); |
| assertEquals(beforeError + 5000, scheduler.getNextTimeMillis(options)); |
| |
| long beforeMoratorium = (scheduler.timeMillis += 100); |
| scheduler.setMoratoriumTimeMillis(beforeTrigger + 1000000); |
| assertEquals(beforeTrigger + 1000000, scheduler.getNextTimeMillis(options)); |
| |
| // Now set the time back a few seconds. |
| // The moratorium time should still be honored. |
| long beforeRollback = (scheduler.timeMillis = beforeTrigger - 10000); |
| assertEquals(beforeTrigger + 1000000, scheduler.getNextTimeMillis(options)); |
| |
| // The rollback also moved the last-attempt clock back to the rollback time. |
| assertEquals(scheduler.timeMillis, scheduler.getLastAttemptTimeMillis()); |
| |
| // But if we set the time back more than a day, the moratorium |
| // resets to the maximum moratorium (a day, by default), exposing |
| // the original trigger time. |
| beforeRollback = (scheduler.timeMillis = beforeTrigger - 100000000); |
| assertEquals(triggerTime, scheduler.getNextTimeMillis(options)); |
| assertEquals(beforeRollback, scheduler.getLastAttemptTimeMillis()); |
| |
| // If we roll forward until after the re-set moratorium, then it expires. |
| scheduler.timeMillis = triggerTime + 5000000; |
| assertEquals(triggerTime, scheduler.getNextTimeMillis(options)); |
| assertEquals(beforeRollback, scheduler.getLastAttemptTimeMillis()); |
| assertEquals(beforeRollback, scheduler.getLastSuccessTimeMillis()); |
| } |
| } |