1 /*
   2  * Copyright (c) 2003, 2015, 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 javax.xml.xpath.XPath;
  27 import javax.xml.xpath.XPathExpressionException;
  28 import javax.xml.xpath.XPathFactory;
  29 import jaxp.library.JAXPBaseTest;
  30 import static org.testng.Assert.assertEquals;
  31 import org.testng.annotations.BeforeTest;
  32 import org.testng.annotations.Test;
  33 
  34 /**
  35  * Class containing the test cases for XPathFunctionResolver.
  36  */
  37 public class XPathFunctionResolverTest extends JAXPBaseTest {
  38     /**
  39      * A XPath for evaluation environment and expressions.
  40      */
  41     private XPath xpath;
  42 
  43     /**
  44      * Create XPath object before every test. Make sure function resolver has
  45      * been set for XPath object.
  46      */
  47     @BeforeTest
  48     public void setup() {
  49         xpath = XPathFactory.newInstance().newXPath();
  50         if (xpath.getXPathFunctionResolver() == null) {
  51             xpath.setXPathFunctionResolver((functionName,arity) -> null);
  52         }
  53     }
  54     /**
  55      * Test for resolveFunction(QName functionName,int arity). evaluate will
  56      * continue as long as functionName is meaningful.
  57      *
  58      * @throws XPathExpressionException If the expression cannot be evaluated.
  59      */
  60     @Test
  61     public void testCheckXPathFunctionResolver01() throws XPathExpressionException {
  62         assertEquals(xpath.evaluate("round(1.7)", (Object)null), "2");
  63     }
  64 
  65     /**
  66      * Test for resolveFunction(QName functionName,int arity); evaluate throws
  67      * NPE if functionName  is null.
  68      *
  69      * @throws XPathExpressionException If the expression cannot be evaluated.
  70      */
  71     @Test(expectedExceptions = NullPointerException.class)
  72     public void testCheckXPathFunctionResolver02() throws XPathExpressionException {
  73         assertEquals(xpath.evaluate(null, "5"), "2");
  74     }
  75 }