| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 storm.starter.tools; |
| |
| import backtype.storm.utils.Time; |
| import org.testng.annotations.DataProvider; |
| import org.testng.annotations.Test; |
| |
| import static org.fest.assertions.api.Assertions.assertThat; |
| |
| public class NthLastModifiedTimeTrackerTest { |
| |
| private static final int ANY_NUM_TIMES_TO_TRACK = 3; |
| private static final int MILLIS_IN_SEC = 1000; |
| |
| @DataProvider |
| public Object[][] illegalNumTimesData() { |
| return new Object[][]{ { -10 }, { -3 }, { -2 }, { -1 }, { 0 } }; |
| } |
| |
| @Test(expectedExceptions = IllegalArgumentException.class, dataProvider = "illegalNumTimesData") |
| public void negativeOrZeroNumTimesToTrackShouldThrowIAE(int numTimesToTrack) { |
| new NthLastModifiedTimeTracker(numTimesToTrack); |
| } |
| |
| @DataProvider |
| public Object[][] legalNumTimesData() { |
| return new Object[][]{ { 1 }, { 2 }, { 3 }, { 20 } }; |
| } |
| |
| @Test(dataProvider = "legalNumTimesData") |
| public void positiveNumTimesToTrackShouldBeOk(int numTimesToTrack) { |
| new NthLastModifiedTimeTracker(numTimesToTrack); |
| } |
| |
| @DataProvider |
| public Object[][] whenNotYetMarkedAsModifiedData() { |
| return new Object[][]{ { 0 }, { 1 }, { 2 }, { 3 }, { 4 }, { 5 }, { 8 }, { 10 } }; |
| } |
| |
| @Test(dataProvider = "whenNotYetMarkedAsModifiedData") |
| public void shouldReturnCorrectModifiedTimeEvenWhenNotYetMarkedAsModified(int secondsToAdvance) { |
| // given |
| Time.startSimulating(); |
| NthLastModifiedTimeTracker tracker = new NthLastModifiedTimeTracker(ANY_NUM_TIMES_TO_TRACK); |
| |
| // when |
| advanceSimulatedTimeBy(secondsToAdvance); |
| int seconds = tracker.secondsSinceOldestModification(); |
| |
| // then |
| assertThat(seconds).isEqualTo(secondsToAdvance); |
| |
| // cleanup |
| Time.stopSimulating(); |
| } |
| |
| @DataProvider |
| public Object[][] simulatedTrackerIterations() { |
| return new Object[][]{ { 1, new int[]{ 0, 1 }, new int[]{ 0, 0 } }, { 1, new int[]{ 0, 2 }, new int[]{ 0, 0 } }, |
| { 2, new int[]{ 2, 2 }, new int[]{ 2, 2 } }, { 2, new int[]{ 0, 4 }, new int[]{ 0, 4 } }, |
| { 1, new int[]{ 1, 1, 1, 1, 1, 1, 1 }, new int[]{ 0, 0, 0, 0, 0, 0, 0 } }, |
| { 1, new int[]{ 1, 2, 3, 4, 5, 6, 7 }, new int[]{ 0, 0, 0, 0, 0, 0, 0 } }, |
| { 2, new int[]{ 1, 1, 1, 1, 1, 1, 1 }, new int[]{ 1, 1, 1, 1, 1, 1, 1 } }, |
| { 2, new int[]{ 2, 2, 2, 2, 2, 2, 2 }, new int[]{ 2, 2, 2, 2, 2, 2, 2 } }, |
| { 2, new int[]{ 1, 2, 3, 4, 5, 6, 7 }, new int[]{ 1, 2, 3, 4, 5, 6, 7 } }, |
| { 3, new int[]{ 1, 1, 1, 1, 1, 1, 1 }, new int[]{ 1, 2, 2, 2, 2, 2, 2 } }, |
| { 3, new int[]{ 1, 2, 3, 4, 5, 6, 7 }, new int[]{ 1, 3, 5, 7, 9, 11, 13 } }, |
| { 3, new int[]{ 2, 2, 2, 2, 2, 2, 2 }, new int[]{ 2, 4, 4, 4, 4, 4, 4 } }, |
| { 4, new int[]{ 1, 1, 1, 1, 1, 1, 1 }, new int[]{ 1, 2, 3, 3, 3, 3, 3 } }, |
| { 4, new int[]{ 1, 2, 3, 4, 5, 6, 7 }, new int[]{ 1, 3, 6, 9, 12, 15, 18 } }, |
| { 4, new int[]{ 2, 2, 2, 2, 2, 2, 2 }, new int[]{ 2, 4, 6, 6, 6, 6, 6 } }, |
| { 5, new int[]{ 1, 1, 1, 1, 1, 1, 1 }, new int[]{ 1, 2, 3, 4, 4, 4, 4 } }, |
| { 5, new int[]{ 1, 2, 3, 4, 5, 6, 7 }, new int[]{ 1, 3, 6, 10, 14, 18, 22 } }, |
| { 5, new int[]{ 2, 2, 2, 2, 2, 2, 2 }, new int[]{ 2, 4, 6, 8, 8, 8, 8 } }, |
| { 6, new int[]{ 1, 1, 1, 1, 1, 1, 1 }, new int[]{ 1, 2, 3, 4, 5, 5, 5 } }, |
| { 6, new int[]{ 1, 2, 3, 4, 5, 6, 7 }, new int[]{ 1, 3, 6, 10, 15, 20, 25 } }, |
| { 6, new int[]{ 2, 2, 2, 2, 2, 2, 2 }, new int[]{ 2, 4, 6, 8, 10, 10, 10 } }, |
| { 3, new int[]{ 1, 2, 3 }, new int[]{ 1, 3, 5 } } }; |
| } |
| |
| @Test(dataProvider = "simulatedTrackerIterations") |
| public void shouldReturnCorrectModifiedTimeWhenMarkedAsModified(int numTimesToTrack, |
| int[] secondsToAdvancePerIteration, int[] expLastModifiedTimes) { |
| // given |
| Time.startSimulating(); |
| NthLastModifiedTimeTracker tracker = new NthLastModifiedTimeTracker(numTimesToTrack); |
| |
| int[] modifiedTimes = new int[expLastModifiedTimes.length]; |
| |
| // when |
| int i = 0; |
| for (int secondsToAdvance : secondsToAdvancePerIteration) { |
| advanceSimulatedTimeBy(secondsToAdvance); |
| tracker.markAsModified(); |
| modifiedTimes[i] = tracker.secondsSinceOldestModification(); |
| i++; |
| } |
| |
| // then |
| assertThat(modifiedTimes).isEqualTo(expLastModifiedTimes); |
| |
| // cleanup |
| Time.stopSimulating(); |
| } |
| |
| private void advanceSimulatedTimeBy(int seconds) { |
| Time.advanceTime(seconds * MILLIS_IN_SEC); |
| } |
| } |