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1
8
9 package net.sourceforge.chaperon.test;
10
11 import junit.framework.Test;
12 import junit.framework.TestCase;
13 import junit.framework.TestSuite;
14
15 import net.sourceforge.chaperon.model.grammar.Associativity;
16 import net.sourceforge.chaperon.model.grammar.Grammar;
17 import net.sourceforge.chaperon.model.grammar.Production;
18 import net.sourceforge.chaperon.model.symbol.Nonterminal;
19 import net.sourceforge.chaperon.model.symbol.Terminal;
20
21 public class GrammarTestCase extends TestCase
22 {
23 private Terminal a;
24 private Terminal b;
25 private Nonterminal E;
26 private Nonterminal F;
27 private Nonterminal G;
28 private Production p1;
29 private Production p2;
30 private Production p3;
31 private Grammar grammar;
32
33 public GrammarTestCase(String  name)
34 {
35 super(name);
36 }
37
38 public void setUp()
39 {
40 a = new Terminal("a");
41 b = new Terminal("b");
42 E = new Nonterminal("E");
43 F = new Nonterminal("F");
44 G = new Nonterminal("G");
45
46 grammar = new Grammar();
47
48 p1 = new Production(F);
49 p1.getDefinition().addSymbol(E);
50 p1.getDefinition().addSymbol(a);
51 p1.getDefinition().addSymbol(E);
52 grammar.addProduction(p1);
53
54 p2 = new Production(F);
55 p2.getDefinition().addSymbol(E);
56 p2.getDefinition().addSymbol(b);
57 p2.getDefinition().addSymbol(E);
58 grammar.addProduction(p2);
59
60 p3 = new Production(G);
61 p3.getDefinition().addSymbol(E);
62 p3.getDefinition().addSymbol(F);
63 grammar.addProduction(p3);
64 }
65
66 public void testContent()
67 {
68 assertTrue("Test if grammar contains productions", grammar.contains(p1));
69 assertTrue("Test if grammar contains productions", grammar.contains(p2));
70
71 assertTrue("Test if production are not equal", !p1.equals(p2));
72
73 Production p3 = new Production(F);
74 p3.getDefinition().addSymbol(E);
75 p3.getDefinition().addSymbol(a);
76 p3.getDefinition().addSymbol(E);
77
78 assertEquals("Test if production are equal", p1, p3);
79 assertTrue("Test if grammar contains productions", grammar.contains(p3));
80
81 assertEquals("Test production indices", 0, grammar.indexOf(p1));
82 assertEquals("Test production indices", 1, grammar.indexOf(p2));
83 assertEquals("Test production indices", 0, grammar.indexOf(p3));
84 }
85
86 public void testPriorities()
87 {
88 assertEquals("Test terminal priority", 0, grammar.getPriority(a));
89 assertEquals("Test terminal priority", 0, grammar.getPriority(b));
90 assertEquals("Test production priority", grammar.getPriority(a), grammar.getPriority(p1));
91 assertEquals("Test production priority", grammar.getPriority(b), grammar.getPriority(p2));
92 assertEquals("Test production priority", 0, grammar.getPriority(p2));
93
94 grammar.setPriority(a, 4);
95 grammar.setPriority(b, 3);
96
97 assertEquals("Test terminal priority", 4, grammar.getPriority(a));
98 assertEquals("Test terminal priority", 3, grammar.getPriority(b));
99 assertEquals("Test production priority", grammar.getPriority(a), grammar.getPriority(p1));
100 assertEquals("Test production priority", grammar.getPriority(b), grammar.getPriority(p2));
101
102 grammar.setPriority(a, 3);
103 grammar.setPriority(b, 4);
104
105 assertEquals("Test terminal priority", 3, grammar.getPriority(a));
106 assertEquals("Test terminal priority", 4, grammar.getPriority(b));
107 assertEquals("Test production priority", grammar.getPriority(a), grammar.getPriority(p1));
108 assertEquals("Test production priority", grammar.getPriority(b), grammar.getPriority(p2));
109
110 p1.setPrecedence(b);
111 assertEquals("Test production priority", grammar.getPriority(b), grammar.getPriority(p1));
112 }
113
114 public void testAssociativities()
115 {
116 Associativity left = Associativity.LEFT;
117 Associativity right = Associativity.RIGHT;
118 Associativity nonassoc = Associativity.NONASSOC;
119
120 assertEquals("Test if associativities are equal", left, new Associativity("left"));
121 assertEquals("Test if associativities are equal", right, new Associativity("right"));
122 assertEquals("Test if associativities are equal", nonassoc, new Associativity("nonassoc"));
123
124 assertTrue("Test if associativities are not equal", !left.equals(right));
125 assertTrue("Test if associativities are not equal", !right.equals(nonassoc));
126 assertTrue("Test if associativities are not equal", !nonassoc.equals(left));
127
128 assertEquals("Test production associativities", nonassoc, grammar.getAssociativity(p1));
129 assertEquals("Test production associativities", nonassoc, grammar.getAssociativity(p2));
130 assertEquals("Test production associativities", nonassoc, grammar.getAssociativity(p3));
131
132 grammar.setAssociativity(b, right);
133
134 assertEquals("Test terminal associativities", right, grammar.getAssociativity(b));
135 assertEquals("Test production associativities", nonassoc, grammar.getAssociativity(p1));
136 assertEquals("Test production associativities", right, grammar.getAssociativity(p2));
137 assertEquals("Test production associativities", nonassoc, grammar.getAssociativity(p3));
138
139 grammar.setAssociativity(a, left);
140
141 assertEquals("Test terminal associativities", left, grammar.getAssociativity(a));
142 assertEquals("Test production associativities", left, grammar.getAssociativity(p1));
143 assertEquals("Test production associativities", right, grammar.getAssociativity(p2));
144 assertEquals("Test production associativities", nonassoc, grammar.getAssociativity(p3));
145
146 p1.setPrecedence(b);
147 assertEquals("Test production priority", right, grammar.getAssociativity(p1));
148 }
149
150 public static Test suite()
151 {
152 return new TestSuite(GrammarTestCase.class);
153 }
154 }
155 |
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