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- /*
- * 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 java.util.LinkedList;
-
- import org.junit.Test;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertFalse;
-
- 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;
-
- /**
- * 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());
- }
- }
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