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add test

This commit is contained in:
Terence Parr 2012-06-02 11:28:25 -07:00
parent 0e9bcfbeca
commit e1524fe86c
1 changed files with 23 additions and 1 deletions
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24
tool/test/org/antlr/v4/test/TestSemPredEvalLexer.java
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@ -40,7 +40,29 @@ public class TestSemPredEvalLexer extends BaseTest {
":s2=>3-'u'->:s3=>3\n" +
":s5=>3-'b'->:s5=>3\n" +
":s5=>3-'c'->:s5=>3\n";
// didn't even created DFA 2nd time; old target of 'u' has "pred" flag set
assertEquals(expecting, found);
}
@Test public void testIDvsEnum() throws Exception {
String grammar =
"lexer grammar L;\n"+
"ENUM : 'enum' {false}? ;\n" +
"ID : 'a'..'z'+ ;\n"+
"WS : (' '|'\\n') {skip();} ;";
String found = execLexer("L.g4", grammar, "L", "enum abc enum", true);
String expecting =
"[@0,0:3='enum',<2>,1:0]\n" +
"[@1,5:7='abc',<2>,1:5]\n" +
"[@2,9:12='enum',<2>,1:9]\n" +
"[@3,13:12='<EOF>',<-1>,1:13]\n" +
"s0-' '->:s5=>3\n" +
"s0-'a'->:s4=>2\n" +
"s0-'e'->:s1=>2\n" +
":s1=>2-'n'->:s2=>2\n" +
":s2=>2-'u'->:s3=>2\n" +
":s3=>2-'m'->:s4=>2\n" +
":s4=>2-'b'->:s4=>2\n" +
":s4=>2-'c'->:s4=>2\n\n";
assertEquals(expecting, found);
}