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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.pdf;
-
- import org.junit.Before;
- import org.junit.Test;
-
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertTrue;
- import static org.mockito.Mockito.mock;
-
- /**
- * Tests that the nums array in the ParentTree dictionary is correctly being split into
- * separate arrays if the elements number exceeds the set limit.
- */
- public class PDFParentTreeTestCase {
-
- private PDFParentTree parentTree;
-
- @Before
- public void initializeStructureTree() {
- parentTree = new PDFParentTree();
- PDFDocument pdfDocument = new PDFDocument("test");
- pdfDocument.makeStructTreeRoot(parentTree);
- }
-
- /**
- * Adds less structured items than the imposed limit which should result
- * in only one nums array being created.
- * @throws Exception
- */
- @Test
- public void testNoSplit() throws Exception {
- assertEquals(getArrayNumber(45), 1);
- }
-
- /**
- * Adds more than the imposed array limit to test that it splits the
- * nums array into two objects.
- * @throws Exception
- */
- @Test
- public void testSingleSplit() throws Exception {
- assertEquals(getArrayNumber(70), 2);
- }
-
- /**
- * Adds items to the nums array to cause and test that multiple splits occur
- * @throws Exception
- */
- @Test
- public void testMultipleSplit() throws Exception {
- assertEquals(getArrayNumber(165), 4);
- }
-
- /**
- * Ensures that items added out of order get added to the correct nums array
- * @throws Exception
- */
- @Test
- public void testOutOfOrderSplit() throws Exception {
- PDFStructElem structElem = mock(PDFStructElem.class);
- for (int num = 50; num < 53; num++) {
- parentTree.addToNums(num, structElem);
- }
- assertEquals(getArrayNumber(50), 2);
- PDFNumberTreeNode treeNode = (PDFNumberTreeNode) parentTree.getKids().get(0);
- for (int num = 0; num < 50; num++) {
- assertTrue(treeNode.getNums().map.containsKey(num));
- }
- treeNode = (PDFNumberTreeNode) parentTree.getKids().get(1);
- for (int num = 50; num < 53; num++) {
- assertTrue(treeNode.getNums().map.containsKey(num));
- }
- }
-
- /**
- * Gets the number of arrays created for a given number of elements
- * @param elementNumber The number of elements to be added to the nums array
- * @return Returns the number of array objects
- * @throws Exception
- */
- private int getArrayNumber(int elementNumber) throws Exception {
- PDFStructElem structElem = mock(PDFStructElem.class);
- for (int structParent = 0; structParent < elementNumber; structParent++) {
- parentTree.addToNums(structParent, structElem);
- }
- return parentTree.getKids().length();
- }
- }
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