| /* |
| * 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 org.apache.iotdb.tsfile.utils; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertTrue; |
| |
| public class BitMapTest { |
| |
| @Test |
| public void testMarkAndUnMark() { |
| BitMap bitmap = new BitMap(100); |
| assertEquals(100, bitmap.getSize()); |
| assertTrue(bitmap.isAllUnmarked()); |
| assertFalse(bitmap.isAllMarked()); |
| for (int i = 0; i < 100; i++) { |
| bitmap.mark(i); |
| assertTrue(bitmap.isMarked(i)); |
| if (i == 50) { |
| assertFalse(bitmap.isAllMarked()); |
| assertFalse(bitmap.isAllUnmarked()); |
| } |
| } |
| assertTrue(bitmap.isAllMarked()); |
| assertFalse(bitmap.isAllUnmarked()); |
| for (int i = 0; i < 100; i++) { |
| bitmap.unmark(i); |
| assertFalse(bitmap.isMarked(i)); |
| } |
| assertTrue(bitmap.isAllUnmarked()); |
| assertFalse(bitmap.isAllMarked()); |
| } |
| |
| @Test |
| public void testInitFromBytes() { |
| BitMap bitmap1 = new BitMap(100); |
| for (int i = 0; i < 100; i++) { |
| if (i % 2 == 0) { |
| bitmap1.mark(i); |
| } |
| } |
| BitMap bitmap2 = new BitMap(bitmap1.getSize(), bitmap1.getByteArray()); |
| assertEquals(100, bitmap2.getSize()); |
| for (int i = 0; i < 100; i++) { |
| assertEquals(bitmap1.isMarked(i), bitmap2.isMarked(i)); |
| } |
| } |
| } |