/*
* [The "BSD license"]
* Copyright (c) 2014 Terence Parr
* Copyright (c) 2014 Sam Harwell
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.test;
import org.antlr.v4.runtime.Token;
import org.antlr.v4.runtime.Vocabulary;
import org.antlr.v4.runtime.VocabularyImpl;
import org.junit.Assert;
import org.junit.Test;
/**
*
* @author Sam Harwell
*/
public class TestVocabulary extends BaseTest {
@Test
public void testEmptyVocabulary() {
Assert.assertNotNull(VocabularyImpl.EMPTY_VOCABULARY);
Assert.assertEquals("EOF", VocabularyImpl.EMPTY_VOCABULARY.getSymbolicName(Token.EOF));
Assert.assertEquals("0", VocabularyImpl.EMPTY_VOCABULARY.getDisplayName(Token.INVALID_TYPE));
}
@Test
public void testVocabularyFromTokenNames() {
String[] tokenNames = {
"<INVALID>",
"TOKEN_REF", "RULE_REF", "'//'", "'/'", "'*'", "'!'", "ID", "STRING"
};
Vocabulary vocabulary = VocabularyImpl.fromTokenNames(tokenNames);
Assert.assertNotNull(vocabulary);
Assert.assertEquals("EOF", vocabulary.getSymbolicName(Token.EOF));
for (int i = 0; i < tokenNames.length; i++) {
Assert.assertEquals(tokenNames[i], vocabulary.getDisplayName(i));
if (tokenNames[i].startsWith("'")) {
Assert.assertEquals(tokenNames[i], vocabulary.getLiteralName(i));
Assert.assertNull(vocabulary.getSymbolicName(i));
}
else if (Character.isUpperCase(tokenNames[i].charAt(0))) {
Assert.assertNull(vocabulary.getLiteralName(i));
Assert.assertEquals(tokenNames[i], vocabulary.getSymbolicName(i));
}
else {
Assert.assertNull(vocabulary.getLiteralName(i));
Assert.assertNull(vocabulary.getSymbolicName(i));
}
}
}
}