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1 package org.jbpm.bpel.data.exe;
2
3 import java.util.List  ;
4
5 import javax.xml.namespace.QName ;
6
7 import junit.framework.TestCase;
8
9 import org.w3c.dom.Attr ;
10 import org.w3c.dom.Element ;
11
12 import org.jbpm.context.def.ContextDefinition;
13 import org.jbpm.graph.def.ProcessDefinition;
14 import org.jbpm.graph.exe.ProcessInstance;
15 import org.jbpm.graph.exe.Token;
16
17 import org.jbpm.bpel.data.def.ElementTypeInfo;
18 import org.jbpm.bpel.data.def.Snippet;
19 import org.jbpm.bpel.data.def.VariableDefinition;
20 import org.jbpm.bpel.xml.BpelException;
21 import org.jbpm.bpel.xml.util.NodeUtil;
22
23
27 public class GeneralExpressionTest extends TestCase {
28
29 private Token token;
30
31 private static final String ELEM1_TEXT =
32 "<a>" +
33 " <b on=\"true\">true</b>" +
34 " <c name=\"venus\"/>" +
35 " <d amount=\"20\"/>" +
36 " <e>30</e>" +
37 "</a>";
38 private static final String ELEM2_TEXT =
39 "<a>" +
40 " <b on=\"\"/>" +
41 " <c name=\"mars\"/>" +
42 " <d amount=\"30\"/>" +
43 " <e>40</e>" +
44 "</a>";
45
46
47 public GeneralExpressionTest(String name) {
48 super(name);
49 }
50
51 protected void setUp() throws Exception {
52 ProcessDefinition pd = new ProcessDefinition();
54 pd.addDefinition(new ContextDefinition());
55 ProcessInstance pi = new ProcessInstance(pd);
56 token = pi.getRootToken();
57 Element elem1 = NodeUtil.parseElement(ELEM1_TEXT);
59 VariableDefinition var1 = new VariableDefinition();
60 var1.setName("var1");
61 var1.setTypeInfo(new ElementTypeInfo(new QName (elem1.getNamespaceURI(), elem1.getLocalName())));
62 var1.createInstance(token).setValue(elem1);
63 Element elem2 = NodeUtil.parseElement(ELEM2_TEXT);
64 VariableDefinition var2 = new VariableDefinition();
65 var2.setName("var2");
66 var2.setTypeInfo(new ElementTypeInfo(new QName (elem2.getNamespaceURI(), elem2.getLocalName())));
67 var2.createInstance(token).setValue(elem2);
68 }
69
70 public void testAdd() {
71 assertEquals(new Double (60), eval("$var1/d/@amount + $var2/e"));
72 assertEquals(new Double (60), eval("20 + $var2/e"));
73 }
74
75 public void testSubstract() {
76 assertEquals(new Double (20), eval("$var2/e - $var1/d/@amount"));
77 assertEquals(new Double (20), eval("$var2/e - 20"));
78 }
79
80 public void testMultiply() {
81 assertEquals(new Double (1200), eval("$var1/e * $var2/e"));
82 assertEquals(new Double (1200), eval("30 * $var2/e"));
83 }
84
85 public void testNodeSetUnion() {
86 Object result = eval("$var1/c/@name | $var1/d/@amount | $var2/e");
87 assertTrue(result instanceof List );
88 List nodeset = (List ) result;
89 assertEquals(3, nodeset.size());
90 assertEquals("venus", ((Attr ) nodeset.get(0)).getNodeValue());
91 assertEquals("20", ((Attr ) nodeset.get(1)).getNodeValue());
92 assertEquals("40", NodeUtil.getValue((Element ) nodeset.get(2)));
93 }
94
95 public void testStringFunction() {
96 assertEquals("venusandmars", eval("concat($var1/c/@name, 'and', $var2/c/@name)"));
97 }
98
99 public void testNumberFunction() {
100 assertEquals(new Double (70), eval("sum($var1/e | $var2/e)"));
101 }
102
103 private Object eval(String exprText) {
104 Object value = null;
105 try {
106 Snippet expr = new Snippet();
107 expr.setText(exprText);
108 expr.setUse(Snippet.Use.EXPRESSION);
109 expr.parseScript();
110 value = expr.getScript().evaluate(token);
111 }
112 catch (BpelException e) {
113 fail(e.getMessage());
114 }
115 return value;
116 }
117 }
118 |
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