1 /*
   2  * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package com.sun.scenario.effect.compiler.parser;
  27 
  28 import com.sun.scenario.effect.compiler.JSLParser;
  29 import com.sun.scenario.effect.compiler.model.BinaryOpType;
  30 import com.sun.scenario.effect.compiler.model.Type;
  31 import com.sun.scenario.effect.compiler.tree.BinaryExpr;
  32 import org.antlr.runtime.RecognitionException;
  33 import org.junit.Test;
  34 
  35 import static org.junit.Assert.*;
  36 
  37 public class RelationalExprTest extends ParserBase {
  38 
  39     @Test
  40     public void oneLtEq() throws Exception {
  41         BinaryExpr tree = parseTreeFor("foo <= 3");
  42         assertEquals(tree.getOp(), BinaryOpType.LTEQ);
  43     }
  44 
  45     @Test
  46     public void oneGtEq() throws Exception {
  47         BinaryExpr tree = parseTreeFor("foo >= 3");
  48         assertEquals(tree.getOp(), BinaryOpType.GTEQ);
  49     }
  50 
  51     @Test
  52     public void oneLt() throws Exception {
  53         BinaryExpr tree = parseTreeFor("foo < 3");
  54         assertEquals(tree.getOp(), BinaryOpType.LT);
  55     }
  56 
  57     @Test
  58     public void oneGt() throws Exception {
  59         BinaryExpr tree = parseTreeFor("foo > 3");
  60         assertEquals(tree.getOp(), BinaryOpType.GT);
  61     }
  62 
  63     @Test(expected = RecognitionException.class)
  64     public void notARelationalExpression() throws Exception {
  65         parseTreeFor("foo @ 3");
  66     }
  67 
  68     private BinaryExpr parseTreeFor(String text) throws RecognitionException {
  69         JSLParser parser = parserOver(text);
  70         parser.getSymbolTable().declareVariable("foo", Type.INT, null);
  71         return (BinaryExpr)parser.relational_expression();
  72     }
  73 }