1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package javax.xml.xpath.ptests; 25 26 import static org.testng.Assert.assertEquals; 27 28 import javax.xml.testutils.TestBase; 29 import javax.xml.xpath.XPath; 30 import javax.xml.xpath.XPathExpressionException; 31 import javax.xml.xpath.XPathFactory; 32 import javax.xml.xpath.XPathFunctionResolver; 33 34 import org.testng.annotations.Test; 35 36 /** 37 * Class containing the test cases for XPathFunctionResolver. 38 */ 39 public class XPathFunctionResolver01 extends TestBase { 40 41 /** 42 * Test for resolveFunction(QName functionName,int arity). If functionName 43 * or arity is null, then a NullPointerException is thrown. 44 * 45 */ 46 @Test 47 public void testCheckXPathFunctionResolver01() { 48 try { 49 XPathFactory xpathFactory = XPathFactory.newInstance(); 50 XPath xpath = xpathFactory.newXPath(); 51 XPathFunctionResolver xpathFunctionResolver = xpath.getXPathFunctionResolver(); 52 if (xpathFunctionResolver == null) { 53 System.out.println("xpathFunctionResolver is null , so creating and setting new MyXPathFunctionResolver "); 54 xpath.setXPathFunctionResolver((q, i) -> { 55 return null; 56 }); 57 } 58 String result = xpath.evaluate("round(1.7)", (Object) null); 59 assertEquals(result, "2"); 60 } catch (XPathExpressionException e) { 61 fail(e); 62 } 63 } 64 }