1   /*
2    * Copyright 1999-2004 The Apache Software Foundation
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package org.apache.commons.jxpath.ri.compiler;
17  
18  import java.text.DecimalFormatSymbols;
19  
20  import org.apache.commons.jxpath.IdentityManager;
21  import org.apache.commons.jxpath.JXPathContext;
22  import org.apache.commons.jxpath.JXPathTestCase;
23  import org.apache.commons.jxpath.KeyManager;
24  import org.apache.commons.jxpath.Pointer;
25  import org.apache.commons.jxpath.TestMixedModelBean;
26  import org.apache.commons.jxpath.Variables;
27  import org.apache.commons.jxpath.ri.model.NodePointer;
28  
29  /***
30   * Test basic functionality of JXPath - core functions.
31   *
32   * @author Dmitri Plotnikov
33   * @version $Revision: 1.10 $ $Date: 2004/05/08 20:07:09 $
34   */
35  
36  public class CoreFunctionTest extends JXPathTestCase {
37      private JXPathContext context;
38  
39      /***
40       * Construct a new instance of this test case.
41       *
42       * @param name Name of the test case
43       */
44      public CoreFunctionTest(String name) {
45          super(name);
46      }
47  
48      public void setUp() {
49          if (context == null) {
50              context = JXPathContext.newContext(new TestMixedModelBean());
51              Variables vars = context.getVariables();
52              vars.declareVariable("nan", new Double(Double.NaN));
53              vars.declareVariable("bool_true", new Boolean("true"));
54              vars.declareVariable("bool_false", new Boolean("false"));
55          }
56      }
57  
58      public void testCoreFunctions() {
59          assertXPathValue(context, "string(2)", "2");
60          assertXPathValue(context, "string($nan)", "NaN");
61          assertXPathValue(context, "string(-$nan)", "NaN");
62          assertXPathValue(context, "string(-2 div 0)", "-Infinity");
63          assertXPathValue(context, "string(2 div 0)", "Infinity");
64          assertXPathValue(context, "concat('a', 'b', 'c')", "abc");
65          assertXPathValue(context, "starts-with('abc', 'ab')", Boolean.TRUE);
66          assertXPathValue(context, "starts-with('xabc', 'ab')", Boolean.FALSE);
67          assertXPathValue(context, "contains('xabc', 'ab')", Boolean.TRUE);
68          assertXPathValue(context, "contains('xabc', 'ba')", Boolean.FALSE);
69          assertXPathValue(
70              context,
71              "substring-before('1999/04/01', '/')",
72              "1999");
73          assertXPathValue(
74              context,
75              "substring-after('1999/04/01', '/')",
76              "04/01");
77          assertXPathValue(context, "substring('12345', 2, 3)", "234");
78          assertXPathValue(context, "substring('12345', 2)", "2345");
79          assertXPathValue(context, "substring('12345', 1.5, 2.6)", "234");
80          assertXPathValue(context, "substring('12345', 0, 3)", "12");
81          assertXPathValue(context, "substring('12345', 0 div 0, 3)", "");
82          assertXPathValue(context, "substring('12345', 1, 0 div 0)", "");
83          assertXPathValue(context, "substring('12345', -42, 1 div 0)", "12345");
84          assertXPathValue(context, "substring('12345', -1 div 0, 1 div 0)", "");
85          assertXPathValue(context, "string-length('12345')", new Double(5));
86          assertXPathValue(context, "normalize-space(' abc  def  ')", "abc def");
87          assertXPathValue(context, "normalize-space('abc def')", "abc def");
88          assertXPathValue(context, "normalize-space('   ')", "");
89          assertXPathValue(context, "translate('--aaa--', 'abc-', 'ABC')", "AAA");
90          assertXPathValue(context, "boolean(1)", Boolean.TRUE);
91          assertXPathValue(context, "boolean(0)", Boolean.FALSE);
92          assertXPathValue(context, "boolean('x')", Boolean.TRUE);
93          assertXPathValue(context, "boolean('')", Boolean.FALSE);
94  
95          assertXPathValue(context, "true()", Boolean.TRUE);
96          assertXPathValue(context, "false()", Boolean.FALSE);
97          assertXPathValue(context, "not(false())", Boolean.TRUE);
98          assertXPathValue(context, "not(true())", Boolean.FALSE);
99          assertXPathValue(context, "number('1')", new Double(1));
100         assertXPathValue(context, "number($bool_true)", new Double(1));
101         assertXPathValue(context, "number($bool_false)", new Double(0));
102         assertXPathValue(context, "floor(1.5)", new Double(1));
103         assertXPathValue(context, "floor(-1.5)", new Double(-2));
104         assertXPathValue(context, "ceiling(1.5)", new Double(2));
105         assertXPathValue(context, "ceiling(-1.5)", new Double(-1));
106         assertXPathValue(context, "round(1.5)", new Double(2));
107         assertXPathValue(context, "round(-1.5)", new Double(-1));
108         assertXPathValue(context, "null()", null);        
109     }
110 
111     public void testIDFunction() {
112         context.setIdentityManager(new IdentityManager() {
113             public Pointer getPointerByID(JXPathContext context, String id) {
114                 NodePointer ptr = (NodePointer) context.getPointer("/document");
115                 ptr = ptr.getValuePointer();
116                 return ptr.getPointerByID(context, id);
117             }
118         });
119 
120         assertXPathValueAndPointer(
121             context,
122             "id(101)//street",
123             "Tangerine Drive",
124             "id('101')/address[1]/street[1]");
125 
126         assertXPathPointerLenient(
127             context,
128             "id(105)/address/street",
129             "id(105)/address/street");
130     }
131 
132     public void testKeyFunction() {
133         context.setKeyManager(new KeyManager() {
134             public Pointer getPointerByKey(
135                 JXPathContext context,
136                 String key,
137                 String value) 
138             {
139                 return NodePointer.newNodePointer(null, "42", null);
140             }
141         });
142 
143         assertEquals("Test key", "42", context.getValue("key('a', 'b')"));
144     }
145     
146     public void testFormatNumberFunction() {
147         
148         DecimalFormatSymbols symbols = new DecimalFormatSymbols();
149         symbols.setDigit('D');
150         
151         context.setDecimalFormatSymbols("test", symbols);
152         
153         assertXPathValue(
154             context,
155             "format-number(123456789, '#.000000000')",
156             "123456789.000000000");
157 
158         assertXPathValue(
159             context,
160             "format-number(123456789, '#.0')",
161             "123456789.0");
162 
163         assertXPathValue(
164             context, 
165             "format-number(0.123456789, '##%')", 
166             "12%");
167 
168         assertXPathValue(
169             context,
170             "format-number(123456789, '################')",
171             "123456789");
172 
173         assertXPathValue(
174             context,
175             "format-number(123456789, 'D.0', 'test')",
176             "123456789.0");
177 
178         assertXPathValue(
179             context,
180             "format-number(123456789, '$DDD,DDD,DDD.DD', 'test')",
181             "$123,456,789");
182     }
183 }