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Fix greedy tests behaving as non-greedy in TestATNLexerInterpreter

This commit is contained in:
Sam Harwell 2012-10-14 19:57:29 -05:00
parent b0a4200a08
commit 30b5e2c6be
1 changed files with 4 additions and 4 deletions
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8
tool/test/org/antlr/v4/test/TestATNLexerInterpreter.java
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@ -69,22 +69,22 @@ public class TestATNLexerInterpreter extends BaseTest {
LexerGrammar lg = new LexerGrammar(
"lexer grammar L;\n"+
"A : 'xy'\n" +
" | 'xy' .\n" + // should not pursue '.' since xy already hit stop
" | 'xy' .\n" + // should pursue '.' since A is greedy
" ;\n");
checkLexerMatches(lg, "xy", "A, EOF");
RecognitionException e = checkLexerMatches(lg, "xyz", "A, EOF");
assertEquals("NoViableAltException('z')", e.toString());
assertNull(e);
}
@Test public void testWildcardQuirk() throws Exception {
LexerGrammar lg = new LexerGrammar(
"lexer grammar L;\n"+
"A : 'xy'\n" +
" | 'xy' . 'z'\n" + // will not pursue '.' since xy already hit stop (prior alt)
" | 'xy' . 'z'\n" + // will pursue '.' since A is greedy
" ;\n");
// checkLexerMatches(lg, "xy", "A, EOF");
RecognitionException e = checkLexerMatches(lg, "xyqz", "A, EOF");
assertEquals("NoViableAltException('q')", e.toString());
assertNull(e);
}
@Test public void testWildcardNonQuirkWhenSplitBetweenTwoRules() throws Exception {