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      1 /*
      2  * [The "BSD license"]
      3  *  Copyright (c) 2010 Terence Parr
      4  *  All rights reserved.
      5  *
      6  *  Redistribution and use in source and binary forms, with or without
      7  *  modification, are permitted provided that the following conditions
      8  *  are met:
      9  *  1. Redistributions of source code must retain the above copyright
     10  *      notice, this list of conditions and the following disclaimer.
     11  *  2. Redistributions in binary form must reproduce the above copyright
     12  *      notice, this list of conditions and the following disclaimer in the
     13  *      documentation and/or other materials provided with the distribution.
     14  *  3. The name of the author may not be used to endorse or promote products
     15  *      derived from this software without specific prior written permission.
     16  *
     17  *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 package org.antlr.test;
     29 
     30 import org.antlr.Tool;
     31 import org.antlr.codegen.CodeGenerator;
     32 import org.antlr.grammar.v3.ANTLRParser;
     33 import org.antlr.grammar.v3.ActionTranslator;
     34 import org.antlr.runtime.CommonToken;
     35 import org.antlr.tool.ErrorManager;
     36 import org.antlr.tool.Grammar;
     37 import org.antlr.tool.GrammarSemanticsMessage;
     38 import org.junit.Test;
     39 
     40 public class TestMessages extends BaseTest {
     41 
     42 	/** Public default constructor used by TestRig */
     43 	public TestMessages() {
     44 	}
     45 
     46 
     47 	@Test public void testMessageStringificationIsConsistent() throws Exception {
     48 		String action = "$other.tree = null;";
     49 		ErrorQueue equeue = new ErrorQueue();
     50 		ErrorManager.setErrorListener(equeue);
     51 		Grammar g = new Grammar(
     52 			"grammar a;\n" +
     53 			"options { output = AST;}" +
     54 			"otherrule\n" +
     55 			"    : 'y' ;" +
     56 			"rule\n" +
     57 			"    : other=otherrule {" + action +"}\n" +
     58 			"    ;");
     59 		Tool antlr = newTool();
     60 		CodeGenerator generator = new CodeGenerator(antlr, g, "Java");
     61 		g.setCodeGenerator(generator);
     62 		generator.genRecognizer(); // forces load of templates
     63 		ActionTranslator translator = new ActionTranslator(generator,
     64 																	"rule",
     65 																	new CommonToken(ANTLRParser.ACTION,action),1);
     66 		String rawTranslation =
     67 			translator.translate();
     68 
     69 		int expectedMsgID = ErrorManager.MSG_WRITE_TO_READONLY_ATTR;
     70 		Object expectedArg = "other";
     71 		Object expectedArg2 = "tree";
     72 		GrammarSemanticsMessage expectedMessage =
     73 			new GrammarSemanticsMessage(expectedMsgID, g, null, expectedArg, expectedArg2);
     74 		String expectedMessageString = expectedMessage.toString();
     75 		assertEquals(expectedMessageString, expectedMessage.toString());
     76 	}
     77 }
     78