| /* |
| * Copyright 1999-2004 The Apache Software Foundation |
| * |
| * 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 org.apache.commons.collections; |
| |
| import junit.framework.Test; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.Iterator; |
| /** |
| * Test cases for UnboundedFifoBuffer. |
| */ |
| public class TestUnboundedFifoBuffer extends TestCollection { |
| |
| public TestUnboundedFifoBuffer(String n) { |
| super(n); |
| } |
| |
| public static Test suite() { |
| return BulkTest.makeSuite(TestUnboundedFifoBuffer.class); |
| } |
| |
| /** |
| * Returns an empty UnboundedFifoBuffer with a small capacity. |
| * |
| * @return an empty UnboundedFifoBuffer |
| */ |
| public Collection makeCollection() { |
| return new UnboundedFifoBuffer(5); |
| } |
| |
| |
| /** |
| * Returns an empty ArrayList. |
| * |
| * @return an empty ArrayList |
| */ |
| public Collection makeConfirmedCollection() { |
| return new ArrayList(); |
| } |
| |
| |
| /** |
| * Returns a full ArrayList. |
| * |
| * @return a full ArrayList |
| */ |
| public Collection makeConfirmedFullCollection() { |
| Collection c = makeConfirmedCollection(); |
| c.addAll(java.util.Arrays.asList(getFullElements())); |
| return c; |
| } |
| |
| |
| /** |
| * Overridden because UnboundedFifoBuffer doesn't allow null elements. |
| * |
| * @return an array of random elements without the null element |
| */ |
| public Object[] getFullElements() { |
| return getFullNonNullElements(); |
| } |
| |
| |
| /** |
| * Overridden because UnboundedFifoBuffer's iterators aren't fail-fast. |
| */ |
| public void testCollectionIteratorFailFast() { |
| } |
| |
| |
| /** |
| * Verifies that the ArrayList has the same elements in the same |
| * sequence as the UnboundedFifoBuffer. |
| */ |
| public void verify() { |
| super.verify(); |
| Iterator iterator1 = collection.iterator(); |
| Iterator iterator2 = confirmed.iterator(); |
| while (iterator2.hasNext()) { |
| assertTrue(iterator1.hasNext()); |
| Object o1 = iterator1.next(); |
| Object o2 = iterator2.next(); |
| assertEquals(o1, o2); |
| } |
| } |
| |
| |
| /** |
| * Tests that UnboundedFifoBuffer removes elements in the right order. |
| */ |
| public void testUnboundedFifoBufferRemove() { |
| resetFull(); |
| int size = confirmed.size(); |
| for (int i = 0; i < size; i++) { |
| Object o1 = ((UnboundedFifoBuffer)collection).remove(); |
| Object o2 = ((ArrayList)confirmed).remove(0); |
| assertEquals("Removed objects should be equal", o1, o2); |
| verify(); |
| } |
| } |
| |
| /** |
| * Tests that the constructor correctly throws an exception. |
| */ |
| public void testConstructorException1() { |
| try { |
| new UnboundedFifoBuffer(0); |
| } catch (IllegalArgumentException ex) { |
| return; |
| } |
| fail(); |
| } |
| |
| /** |
| * Tests that the constructor correctly throws an exception. |
| */ |
| public void testConstructorException2() { |
| try { |
| new UnboundedFifoBuffer(-20); |
| } catch (IllegalArgumentException ex) { |
| return; |
| } |
| fail(); |
| } |
| } |
| |