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Java > Open Source Codes > test > prefuse > data > expression > PredicateChainTest


1 package test.prefuse.data.expression;
2
3 import junit.framework.TestCase;
4 import prefuse.data.Table;
5 import prefuse.data.expression.IfExpression;
6 import prefuse.data.expression.Predicate;
7 import prefuse.data.expression.parser.ExpressionParser;
8 import prefuse.util.PredicateChain;
9 import test.prefuse.data.TableTest;
10
11 public class PredicateChainTest extends TestCase {
12
13     private PredicateChain m_chain;
14     private Table m_table;
15     
16     private Predicate p1, p2, p3;
17     
18     protected void setUp() throws Exception JavaDoc {
19         m_table = TableTest.getTestCaseTable();
20         
21         p1 = (Predicate)ExpressionParser.parse("id=3");
22         p2 = (Predicate)ExpressionParser.parse("float<2");
23         p3 = (Predicate)ExpressionParser.parse("id>3");
24         
25         m_chain = new PredicateChain();
26         m_chain.add(p1, new Integer JavaDoc(1));
27         m_chain.add(p2, new Integer JavaDoc(2));
28         m_chain.add(p3, new Integer JavaDoc(3));
29     }
30
31     protected void tearDown() throws Exception JavaDoc {
32         m_chain = null;
33         m_table = null;
34         p1 = null;
35         p2 = null;
36         p3 = null;
37     }
38
39     /*
40      * Test method for 'prefuse.util.PredicateChain.get(Tuple)'
41      */

42     public void testGet() {
43         assertEquals(new Integer JavaDoc(1), m_chain.get(m_table.getTuple(2)));
44         assertEquals(new Integer JavaDoc(2), m_chain.get(m_table.getTuple(0)));
45         assertEquals(new Integer JavaDoc(3), m_chain.get(m_table.getTuple(3)));
46         assertEquals(null, m_chain.get(m_table.getTuple(1)));
47     }
48
49     /*
50      * Test method for 'prefuse.util.PredicateChain.add(Predicate, Object)'
51      */

52     public void testAdd() {
53         Predicate p = (Predicate)ExpressionParser.parse("id=2");
54         m_chain.add(p, new Integer JavaDoc(4));
55         assertEquals(new Integer JavaDoc(4), m_chain.get(m_table.getTuple(1)));
56     }
57
58     /*
59      * Test method for 'prefuse.util.PredicateChain.remove(Predicate)'
60      */

61     public void testRemove() {
62         assertTrue(m_chain.getExpression() instanceof IfExpression);
63         assertTrue(m_chain.remove(p1));
64         assertEquals(new Integer JavaDoc(2), m_chain.get(m_table.getTuple(2)));
65         
66         assertTrue(m_chain.getExpression() instanceof IfExpression);
67         assertTrue(m_chain.remove(p2));
68         assertEquals(null, m_chain.get(m_table.getTuple(0)));
69         assertEquals(null, m_chain.get(m_table.getTuple(1)));
70         assertEquals(null, m_chain.get(m_table.getTuple(2)));
71         
72         assertTrue(m_chain.getExpression() instanceof IfExpression);
73         assertTrue(m_chain.remove(p3));
74         assertEquals(null, m_chain.get(m_table.getTuple(3)));
75         
76         assertFalse(m_chain.getExpression() instanceof IfExpression);
77         assertFalse(m_chain.remove(p1));
78         assertFalse(m_chain.remove(p2));
79         assertFalse(m_chain.remove(p3));
80     }
81
82     /*
83      * Test method for 'prefuse.util.PredicateChain.clear()'
84      */

85     public void testClear() {
86         assertTrue(m_chain.getExpression() instanceof IfExpression);
87         m_chain.clear();
88         assertEquals(null, m_chain.get(m_table.getTuple(0)));
89         assertEquals(null, m_chain.get(m_table.getTuple(1)));
90         assertEquals(null, m_chain.get(m_table.getTuple(2)));
91         assertEquals(null, m_chain.get(m_table.getTuple(3)));
92         assertFalse(m_chain.getExpression() instanceof IfExpression);
93         assertFalse(m_chain.remove(p1));
94         assertFalse(m_chain.remove(p2));
95         assertFalse(m_chain.remove(p3));
96     }
97
98     public void testRemove2() {
99         PredicateChain pc = new PredicateChain();
100         Predicate p1 = (Predicate) ExpressionParser.parse("_fixed");
101         Predicate p2 = (Predicate) ExpressionParser.parse("_highlight");
102         pc.add(p1, new Integer JavaDoc(1));
103         pc.add(p2, new Integer JavaDoc(2));
104         assertTrue(pc.remove(p2));
105     }
106     
107 }
108
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