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antlr
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add test

This commit is contained in:
Terence Parr 2014-07-10 18:00:16 -07:00
parent 94ddde2dbc
commit 83411ef056
1 changed files with 29 additions and 1 deletions
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30
tool/test/org/antlr/v4/test/TestATNConstruction.java
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@ -28,6 +28,8 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.antlr.v4.test;
import org.antlr.v4.Tool;
import org.antlr.v4.automata.ATNPrinter;
import org.antlr.v4.automata.LexerATNFactory;
import org.antlr.v4.automata.ParserATNFactory;
@ -35,9 +37,11 @@ import org.antlr.v4.runtime.atn.ATN;
import org.antlr.v4.runtime.atn.ATNState;
import org.antlr.v4.tool.Grammar;
import org.antlr.v4.tool.LexerGrammar;
import org.antlr.v4.tool.ast.GrammarRootAST;
import org.junit.Test;
import static org.junit.Assert.*;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
public class TestATNConstruction extends BaseTest {
@Test
@ -390,6 +394,30 @@ public class TestATNConstruction extends BaseTest {
"RuleStop_a_1-EOF->s8\n";
checkRuleATN(g, "a", expecting);
}
@Test public void testParserRuleRefInLexerRule() throws Exception {
boolean threwException = false;
try {
String gstr =
"lexer grammar U;\n"+
"A : a;";
Tool tool = new Tool();
tool.removeListeners();
ErrorQueue errorQueue = new ErrorQueue();
tool.addListener(errorQueue);
System.out.println("errors:"+errorQueue.errors);
System.out.println("warns:"+errorQueue.warnings);
GrammarRootAST grammarRootAST = tool.parseGrammarFromString(gstr);
Grammar g = tool.createGrammar(grammarRootAST);
tool.process(g, false);
}
catch (Exception e) {
threwException = true;
}
assertTrue(!threwException);
}
/*
@Test public void testMultiplePredicates() throws Exception {
Grammar g = new Grammar(