| /* |
| * 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. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.util; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertFalse; |
| |
| import java.util.LinkedList; |
| |
| import org.apache.fop.layoutmgr.ElementListUtils; |
| import org.apache.fop.layoutmgr.KnuthBox; |
| import org.apache.fop.layoutmgr.KnuthElement; |
| import org.apache.fop.layoutmgr.KnuthGlue; |
| import org.apache.fop.layoutmgr.KnuthPenalty; |
| import org.junit.Test; |
| |
| /** |
| * Test class for ElementListUtils. |
| */ |
| public class ElementListUtilsTestCase { |
| |
| /** |
| * Tests ElementListUtils.removeLegalBreaks(). |
| * @throws Exception if the test fails |
| */ |
| @Test |
| public void testRemoveElementPenalty1() throws Exception { |
| LinkedList lst = new LinkedList(); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 0, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 200, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 0, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false)); |
| lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false)); |
| lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false)); |
| |
| boolean res = ElementListUtils.removeLegalBreaks(lst, 9000); |
| |
| assertFalse(res); |
| |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(1)).getPenalty()); |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(3)).getPenalty()); |
| assertEquals(0, ((KnuthPenalty)lst.get(5)).getPenalty()); |
| } |
| |
| /** |
| * Tests ElementListUtils.removeLegalBreaks(). |
| * @throws Exception if the test fails |
| */ |
| @Test |
| public void testRemoveElementPenalty2() throws Exception { |
| LinkedList lst = new LinkedList(); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthGlue(0, 0, 0, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthGlue(0, 0, 0, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthGlue(0, 0, 0, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false)); |
| lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false)); |
| lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false)); |
| |
| boolean res = ElementListUtils.removeLegalBreaks(lst, 9000); |
| |
| assertFalse(res); |
| |
| //Must insert an INFINITE penalty |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(1)).getPenalty()); |
| assertEquals(0, ((KnuthGlue)lst.get(2)).getWidth()); |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(4)).getPenalty()); |
| assertEquals(0, ((KnuthGlue)lst.get(5)).getWidth()); |
| assertEquals(0, ((KnuthGlue)lst.get(7)).getWidth()); |
| } |
| |
| /** |
| * Tests ElementListUtils.removeLegalBreaksFromEnd(). |
| * @throws Exception if the test fails |
| */ |
| @Test |
| public void testRemoveElementFromEndPenalty1() throws Exception { |
| LinkedList lst = new LinkedList(); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 0, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 200, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 0, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false)); |
| lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false)); |
| lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false)); |
| |
| boolean res = ElementListUtils.removeLegalBreaksFromEnd(lst, 9000); |
| |
| assertFalse(res); |
| |
| assertEquals(0, ((KnuthPenalty)lst.get(1)).getPenalty()); |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(3)).getPenalty()); |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(5)).getPenalty()); |
| } |
| |
| /** |
| * Tests ElementListUtils.removeLegalBreaksFromEnd(). |
| * @throws Exception if the test fails |
| */ |
| @Test |
| public void testRemoveElementFromEndPenalty2() throws Exception { |
| LinkedList lst = new LinkedList(); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 0, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, 200, false, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthGlue(0, 0, 0, null, false)); |
| lst.add(new KnuthBox(4000, null, false)); |
| lst.add(new KnuthPenalty(0, KnuthElement.INFINITE, false, null, false)); |
| lst.add(new KnuthGlue(0, Integer.MAX_VALUE, 0, null, false)); |
| lst.add(new KnuthPenalty(0, -KnuthElement.INFINITE, false, null, false)); |
| |
| boolean res = ElementListUtils.removeLegalBreaksFromEnd(lst, 9000); |
| |
| assertFalse(res); |
| |
| //Must insert an INFINITE penalty |
| assertEquals(0, ((KnuthPenalty)lst.get(1)).getPenalty()); |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(3)).getPenalty()); |
| assertEquals(KnuthElement.INFINITE, ((KnuthPenalty)lst.get(5)).getPenalty()); |
| assertEquals(0, ((KnuthGlue)lst.get(6)).getWidth()); |
| } |
| } |