1 /*
   2  * Copyright (c) 2003, 2016, 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.xpath.XPath;
  29 import javax.xml.xpath.XPathExpressionException;
  30 import javax.xml.xpath.XPathFactory;
  31 
  32 import org.testng.annotations.BeforeTest;
  33 import org.testng.annotations.Listeners;
  34 import org.testng.annotations.Test;
  35 
  36 /**
  37  * Class containing the test cases for XPathFunctionResolver.
  38  */
  39 @Listeners({jaxp.library.BasePolicy.class})
  40 public class XPathFunctionResolverTest {
  41     /**
  42      * A XPath for evaluation environment and expressions.
  43      */
  44     private XPath xpath;
  45 
  46     /**
  47      * Create XPath object before every test. Make sure function resolver has
  48      * been set for XPath object.
  49      */
  50     @BeforeTest
  51     public void setup() {
  52         xpath = XPathFactory.newInstance().newXPath();
  53         if (xpath.getXPathFunctionResolver() == null) {
  54             xpath.setXPathFunctionResolver((functionName,arity) -> null);
  55         }
  56     }
  57     /**
  58      * Test for resolveFunction(QName functionName,int arity). evaluate will
  59      * continue as long as functionName is meaningful.
  60      *
  61      * @throws XPathExpressionException If the expression cannot be evaluated.
  62      */
  63     @Test
  64     public void testCheckXPathFunctionResolver01() throws XPathExpressionException {
  65         assertEquals(xpath.evaluate("round(1.7)", (Object)null), "2");
  66     }
  67 
  68     /**
  69      * Test for resolveFunction(QName functionName,int arity); evaluate throws
  70      * NPE if functionName  is null.
  71      *
  72      * @throws XPathExpressionException If the expression cannot be evaluated.
  73      */
  74     @Test(expectedExceptions = NullPointerException.class)
  75     public void testCheckXPathFunctionResolver02() throws XPathExpressionException {
  76         assertEquals(xpath.evaluate(null, "5"), "2");
  77     }
  78 }