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.Type; 30 import com.sun.scenario.effect.compiler.tree.BinaryExpr; 31 import com.sun.scenario.effect.compiler.tree.ExprStmt; 32 import com.sun.scenario.effect.compiler.tree.LiteralExpr; 33 import com.sun.scenario.effect.compiler.tree.SelectStmt; 34 import com.sun.scenario.effect.compiler.tree.Stmt; 35 import org.antlr.runtime.RecognitionException; 36 import org.junit.Test; 37 38 import static org.junit.Assert.*; 39 40 public class SelectionStatementTest extends ParserBase { 41 42 @Test 43 public void ifOnly() throws Exception { 44 Stmt tree = parseTreeFor("if (foo >= 3) foo += 12;"); 45 assertTrue(tree instanceof SelectStmt); 46 SelectStmt s = (SelectStmt)tree; 47 assertTrue(s.getIfExpr() instanceof BinaryExpr); 48 assertTrue(s.getThenStmt() instanceof ExprStmt); 49 assertNull(s.getElseStmt()); 50 } 51 52 @Test 53 public void ifAndElse() throws Exception { 54 Stmt tree = parseTreeFor("if (true) foo+=5; else --foo;"); 55 assertTrue(tree instanceof SelectStmt); 56 SelectStmt s = (SelectStmt)tree; 57 assertTrue(s.getIfExpr() instanceof LiteralExpr); 58 assertTrue(s.getThenStmt() instanceof ExprStmt); 59 assertTrue(s.getElseStmt() instanceof ExprStmt); 60 } 61 62 @Test(expected = RecognitionException.class) 63 public void notASelect() throws Exception { 64 parseTreeFor("then (so) { bobs yer uncle }"); 65 } 66 67 private Stmt parseTreeFor(String text) throws RecognitionException { 68 JSLParser parser = parserOver(text); 69 parser.getSymbolTable().declareVariable("foo", Type.INT, null); 70 return parser.selection_statement(); 71 } 72 }