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1 package test.prefuse.data.expression;
2
3 import junit.framework.TestCase;
4 import prefuse.data.expression.AndPredicate;
5 import prefuse.data.expression.ArithmeticExpression;
6 import prefuse.data.expression.ColumnExpression;
7 import prefuse.data.expression.ComparisonPredicate;
8 import prefuse.data.expression.Expression;
9 import prefuse.data.expression.FunctionExpression;
10 import prefuse.data.expression.IfExpression;
11 import prefuse.data.expression.ObjectLiteral;
12 import prefuse.data.expression.parser.ExpressionParser;
13 import prefuse.data.expression.parser.ParseException;
14 import prefuse.data.expression.parser.TokenMgrError;
15
16 public class ExpressionTest extends TestCase {
17
18 private static String  [] expr = {
19 "District <= 0",
20 "IF x < 0 THEN x^2 ELSE x%0",
21 "ABS(3+5*EXP(3)/SIN(5)*SIGN(32.3f)-ROUND(23.2e-1))",
22 "x && y",
23 "x & y",
24 "if x<0 else x^2 then x%0",
25 "((3+6)*(4+1))",
26 "2*3%6",
27 "2+3%6",
28 "2*3^6",
29 "2 + 3 3 + 4",
30 "[One Long Column]",
31 "An Invalid Column",
32 "\"Double Quoted String\"",
33 "'A tab\\t andd\\b a newline \\n'"
34 };
35 private static Class [] type = {
36 ComparisonPredicate.class,
37 IfExpression.class,
38 FunctionExpression.class,
39 AndPredicate.class,
40 null,
41 null,
42 ArithmeticExpression.class,
43 ArithmeticExpression.class,
44 ArithmeticExpression.class,
45 ArithmeticExpression.class,
46 null,
47 ColumnExpression.class,
48 null,
49 ObjectLiteral.class,
50 ObjectLiteral.class
51 };
52
53 public void testExpressionParser() {
54 for ( int i=0; i<expr.length; ++i ) {
55 try {
56 Expression e = ExpressionParser.parse(expr[i], true);
57 assertEquals(true, type[i]!=null);
58 assertEquals(true, type[i].isAssignableFrom(e.getClass()));
59 } catch ( TokenMgrError tme ) {
60 System.out.println(tme);
61 assertEquals(null, type[i]);
62 } catch ( ParseException pe ) {
63 System.out.println(pe);
64 assertEquals(null, type[i]);
65 }
66 }
67 }
68
69 }
70 |
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