| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.el.parser; |
| |
| import javax.el.ELContext; |
| import javax.el.ELException; |
| import javax.el.ExpressionFactory; |
| import javax.el.ValueExpression; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| import org.junit.Test; |
| |
| import org.apache.jasper.el.ELContextImpl; |
| |
| public class TestELParser { |
| |
| @Test |
| public void testBug49081() { |
| // OP's report |
| testExpression("#${1+1}", "#2"); |
| |
| // Variations on a theme |
| testExpression("#", "#"); |
| testExpression("##", "##"); |
| testExpression("###", "###"); |
| testExpression("$", "$"); |
| testExpression("$$", "$$"); |
| testExpression("$$$", "$$$"); |
| testExpression("#$", "#$"); |
| testExpression("#$#", "#$#"); |
| testExpression("$#", "$#"); |
| testExpression("$#$", "$#$"); |
| |
| testExpression("#{1+1}", "2"); |
| testExpression("##{1+1}", "#2"); |
| testExpression("###{1+1}", "##2"); |
| testExpression("${1+1}", "2"); |
| testExpression("$${1+1}", "$2"); |
| testExpression("$$${1+1}", "$$2"); |
| testExpression("#${1+1}", "#2"); |
| testExpression("#$#{1+1}", "#$2"); |
| testExpression("$#{1+1}", "$2"); |
| testExpression("$#${1+1}", "$#2"); |
| } |
| |
| @Test |
| public void testJavaKeyWordSuffix() { |
| ExpressionFactory factory = ExpressionFactory.newInstance(); |
| ELContext context = new ELContextImpl(factory); |
| |
| TesterBeanA beanA = new TesterBeanA(); |
| beanA.setInt("five"); |
| ValueExpression var = |
| factory.createValueExpression(beanA, TesterBeanA.class); |
| context.getVariableMapper().setVariable("beanA", var); |
| |
| // Should fail |
| Exception e = null; |
| try { |
| factory.createValueExpression(context, "${beanA.int}", |
| String.class); |
| } catch (ELException ele) { |
| e = ele; |
| } |
| assertNotNull(e); |
| } |
| |
| @Test |
| public void testJavaKeyWordIdentifier() { |
| ExpressionFactory factory = ExpressionFactory.newInstance(); |
| ELContext context = new ELContextImpl(factory); |
| |
| TesterBeanA beanA = new TesterBeanA(); |
| beanA.setInt("five"); |
| ValueExpression var = |
| factory.createValueExpression(beanA, TesterBeanA.class); |
| context.getVariableMapper().setVariable("this", var); |
| |
| // Should fail |
| Exception e = null; |
| try { |
| factory.createValueExpression(context, "${this}", String.class); |
| } catch (ELException ele) { |
| e = ele; |
| } |
| assertNotNull(e); |
| } |
| |
| |
| @Test |
| public void bug56179a() { |
| doTestBug56179(0, "test == true"); |
| } |
| |
| @Test |
| public void bug56179b() { |
| doTestBug56179(1, "test == true"); |
| } |
| |
| @Test |
| public void bug56179c() { |
| doTestBug56179(2, "test == true"); |
| } |
| |
| @Test |
| public void bug56179d() { |
| doTestBug56179(3, "test == true"); |
| } |
| |
| @Test |
| public void bug56179e() { |
| doTestBug56179(4, "test == true"); |
| } |
| |
| @Test |
| public void bug56179f() { |
| doTestBug56179(5, "test == true"); |
| } |
| |
| @Test |
| public void bug56179g() { |
| doTestBug56179(0, "(test) == true"); |
| } |
| |
| @Test |
| public void bug56179h() { |
| doTestBug56179(1, "(test) == true"); |
| } |
| |
| @Test |
| public void bug56179i() { |
| doTestBug56179(2, "(test) == true"); |
| } |
| |
| @Test |
| public void bug56179j() { |
| doTestBug56179(3, "(test) == true"); |
| } |
| |
| @Test |
| public void bug56179k() { |
| doTestBug56179(4, "(test) == true"); |
| } |
| |
| @Test |
| public void bug56179l() { |
| doTestBug56179(5, "(test) == true"); |
| } |
| |
| @Test |
| public void bug56179m() { |
| doTestBug56179(5, "((test)) == true"); |
| } |
| |
| @Test |
| public void bug56179n() { |
| doTestBug56179(5, "(((test))) == true"); |
| } |
| |
| private void doTestBug56179(int parenthesesCount, String innerExpr) { |
| ExpressionFactory factory = ExpressionFactory.newInstance(); |
| ELContext context = new ELContextImpl(factory); |
| |
| ValueExpression var = |
| factory.createValueExpression(Boolean.TRUE, Boolean.class); |
| context.getVariableMapper().setVariable("test", var); |
| |
| StringBuilder expr = new StringBuilder(); |
| expr.append("${"); |
| for (int i = 0; i < parenthesesCount; i++) { |
| expr.append("("); |
| } |
| expr.append(innerExpr); |
| for (int i = 0; i < parenthesesCount; i++) { |
| expr.append(")"); |
| } |
| expr.append("}"); |
| ValueExpression ve = factory.createValueExpression( |
| context, expr.toString(), String.class); |
| |
| String result = (String) ve.getValue(context); |
| assertEquals("true", result); |
| } |
| |
| @Test |
| public void bug56185() { |
| ExpressionFactory factory = ExpressionFactory.newInstance(); |
| ELContext context = new ELContextImpl(factory); |
| |
| TesterBeanC beanC = new TesterBeanC(); |
| ValueExpression var = |
| factory.createValueExpression(beanC, TesterBeanC.class); |
| context.getVariableMapper().setVariable("myBean", var); |
| |
| ValueExpression ve = factory.createValueExpression(context, |
| "${(myBean.int1 > 1 and myBean.myBool) or "+ |
| "((myBean.myBool or myBean.myBool1) and myBean.int1 > 1)}", |
| Boolean.class); |
| assertEquals(Boolean.FALSE, ve.getValue(context)); |
| beanC.setInt1(2); |
| beanC.setMyBool1(true); |
| assertEquals(Boolean.TRUE, ve.getValue(context)); |
| } |
| |
| private void testExpression(String expression, String expected) { |
| ExpressionFactory factory = ExpressionFactory.newInstance(); |
| ELContext context = new ELContextImpl(factory); |
| |
| ValueExpression ve = factory.createValueExpression( |
| context, expression, String.class); |
| |
| String result = (String) ve.getValue(context); |
| assertEquals(expected, result); |
| } |
| } |