| /* |
| * 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 |
| * |
| * https://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.tools.ant.util; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| |
| import org.junit.Test; |
| |
| import static org.hamcrest.Matchers.instanceOf; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| import static org.junit.Assert.assertSame; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.assertThat; |
| |
| public class VectorSetTest { |
| |
| private static final Object O = new Object(); |
| private VectorSet<Object> v = new VectorSet<>(); |
| |
| @Test |
| public void testAdd() { |
| assertTrue(v.add(O)); |
| assertFalse(v.add(O)); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testAdd2() { |
| v.add(0, O); |
| v.add(1, O); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testAddElement() { |
| v.addElement(O); |
| v.addElement(O); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testAddAll() { |
| assertTrue(v.addAll(Arrays.asList(O, O))); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testAddAll2() { |
| assertTrue(v.addAll(0, Arrays.asList(O, O))); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testClear() { |
| v.add(O); |
| v.clear(); |
| assertEquals(0, v.size()); |
| } |
| |
| @Test |
| @SuppressWarnings("unchecked") |
| public void testClone() { |
| v.add(O); |
| Object o = v.clone(); |
| assertThat(o, instanceOf(VectorSet.class)); |
| VectorSet<Object> vs = (VectorSet<Object>) o; |
| assertEquals(1, vs.size()); |
| assertTrue(vs.contains(O)); |
| } |
| |
| @Test |
| public void testContains() { |
| assertFalse(v.contains(O)); |
| v.add(O); |
| assertTrue(v.contains(O)); |
| assertFalse(v.contains(null)); |
| } |
| |
| @Test |
| public void testContainsAll() { |
| assertFalse(v.containsAll(Arrays.asList(O, O))); |
| v.add(O); |
| assertTrue(v.containsAll(Arrays.asList(O, O))); |
| assertFalse(v.containsAll(Arrays.asList(O, null))); |
| } |
| |
| @Test |
| public void testInsertElementAt() { |
| v.insertElementAt(O, 0); |
| v.insertElementAt(O, 1); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testRemoveIndex() { |
| v.add(O); |
| assertSame(O, v.remove(0)); |
| assertEquals(0, v.size()); |
| } |
| |
| @Test(expected = ArrayIndexOutOfBoundsException.class) |
| public void testCantRemoveByIndexFromEmptySet() { |
| v.remove(0); |
| } |
| |
| @Test |
| public void testRemoveObject() { |
| v.add(O); |
| assertTrue(v.remove(O)); |
| assertEquals(0, v.size()); |
| assertFalse(v.remove(O)); |
| } |
| |
| @Test |
| public void testRemoveAtEndWhenSizeEqualsCapacity() { |
| v = new VectorSet<>(3, 1); |
| Object a = new Object(); |
| v.add(a); |
| Object b = new Object(); |
| v.add(b); |
| v.add(O); |
| assertEquals(3, v.size()); |
| assertEquals(3, v.capacity()); |
| assertTrue(v.remove(O)); |
| assertEquals(2, v.size()); |
| assertFalse(v.remove(O)); |
| assertSame(a, v.elementAt(0)); |
| assertSame(b, v.elementAt(1)); |
| } |
| |
| @Test |
| public void testRemoveAtFrontWhenSizeEqualsCapacity() { |
| v = new VectorSet<>(3, 1); |
| v.add(O); |
| Object a = new Object(); |
| v.add(a); |
| Object b = new Object(); |
| v.add(b); |
| assertEquals(3, v.size()); |
| assertEquals(3, v.capacity()); |
| assertTrue(v.remove(O)); |
| assertEquals(2, v.size()); |
| assertFalse(v.remove(O)); |
| assertSame(a, v.elementAt(0)); |
| assertSame(b, v.elementAt(1)); |
| } |
| |
| @Test |
| public void testRemoveInMiddleWhenSizeEqualsCapacity() { |
| v = new VectorSet<>(3, 1); |
| Object a = new Object(); |
| v.add(a); |
| v.add(O); |
| Object b = new Object(); |
| v.add(b); |
| assertEquals(3, v.size()); |
| assertEquals(3, v.capacity()); |
| assertTrue(v.remove(O)); |
| assertEquals(2, v.size()); |
| assertFalse(v.remove(O)); |
| assertSame(a, v.elementAt(0)); |
| assertSame(b, v.elementAt(1)); |
| } |
| |
| @Test |
| public void testRemoveAll() { |
| v.add(O); |
| assertTrue(v.removeAll(Arrays.asList(O, O))); |
| assertEquals(0, v.size()); |
| assertFalse(v.removeAll(Arrays.asList(O, O))); |
| } |
| |
| @Test |
| public void testRemoveAllElements() { |
| v.add(O); |
| v.removeAllElements(); |
| assertEquals(0, v.size()); |
| } |
| |
| @Test |
| public void testRemoveElement() { |
| v.add(O); |
| assertTrue(v.removeElement(O)); |
| assertEquals(0, v.size()); |
| assertFalse(v.removeElement(O)); |
| } |
| |
| @Test |
| public void testRemoveElementAt() { |
| v.add(O); |
| v.removeElementAt(0); |
| assertEquals(0, v.size()); |
| } |
| |
| @Test(expected = ArrayIndexOutOfBoundsException.class) |
| public void testCantRemoveAtFromEmptySet() { |
| v.removeElementAt(0); |
| } |
| |
| @Test |
| public void testRemoveRange() { |
| Object a = new Object(); |
| Object b = new Object(); |
| Object c = new Object(); |
| v.addAll(Arrays.asList(O, a, b, c)); |
| v.removeRange(1, 3); |
| assertEquals(2, v.size()); |
| assertTrue(v.contains(O)); |
| assertTrue(v.contains(c)); |
| } |
| |
| @Test |
| public void testRetainAll() { |
| Object a = new Object(); |
| Object b = new Object(); |
| Object c = new Object(); |
| v.addAll(Arrays.asList(O, a, b, c)); |
| assertEquals(0, v.indexOf(O)); |
| assertTrue(v.retainAll(Arrays.asList(c, O))); |
| assertEquals(2, v.size()); |
| assertTrue(v.contains(O)); |
| assertTrue(v.contains(c)); |
| assertEquals(0, v.indexOf(O)); |
| } |
| |
| @Test |
| public void testRetainAllReturnValueAndEmptiness() { |
| v.add(1); |
| v.add(2); |
| v.add(3); |
| assertTrue(v.retainAll(Arrays.asList(1, 2))); |
| assertEquals(2, v.size()); |
| assertFalse(v.retainAll(Arrays.asList(1, 2))); |
| assertEquals(2, v.size()); |
| assertTrue(v.retainAll(Arrays.asList(4, 5))); |
| assertEquals(0, v.size()); |
| assertFalse(v.retainAll(Arrays.asList(4, 5))); |
| } |
| |
| @Test |
| public void testSet() { |
| v.add(O); |
| Object a = new Object(); |
| assertSame(O, v.set(0, a)); |
| assertSame(a, v.get(0)); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testSetElementAt() { |
| v.add(O); |
| Object a = new Object(); |
| v.setElementAt(a, 0); |
| assertSame(a, v.get(0)); |
| assertEquals(1, v.size()); |
| } |
| |
| @Test |
| public void testRetainAllSpeed() { |
| int size = 50000; |
| for (int i = 0; i < size; i++) { |
| v.add(i); |
| v.add(i); |
| } |
| assertEquals(size, v.size()); |
| ArrayList<Integer> list = new ArrayList<>(); |
| for (int i = size - 4; i < 2 * size; i++) { |
| list.add(i); |
| v.add(i); |
| } |
| assertTrue(v.retainAll(list)); |
| assertEquals(v.toString(), size + 4, v.size()); |
| } |
| |
| } |