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/*
* 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 jakarta.el.ELContext;
import jakarta.el.ELException;
import jakarta.el.ExpressionFactory;
import jakarta.el.ValueExpression;
import org.junit.Assert;
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, "${beanA.int}",
String.class);
} catch (ELException ele) {
e = ele;
}
Assert.assertNotNull(e);
}
@Test
public void testJavaKeyWordIdentifier() {
ExpressionFactory factory = ExpressionFactory.newInstance();
ELContext context = new ELContextImpl(factory);
TesterBeanA beanA = new TesterBeanA();
beanA.setInt("five");
ValueExpression var =
factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("this", var);
// Should fail
Exception e = null;
try {
factory.createValueExpression(context, "${this}", String.class);
} catch (ELException ele) {
e = ele;
}
Assert.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("${");
for (int i = 0; i < parenthesesCount; i++) {
expr.append('(');
}
expr.append(innerExpr);
for (int i = 0; i < parenthesesCount; i++) {
expr.append(')');
}
expr.append('}');
ValueExpression ve = factory.createValueExpression(
context, expr.toString(), String.class);
String result = (String) ve.getValue(context);
Assert.assertEquals("true", result);
}
@Test
public void bug56185() {
ExpressionFactory factory = ExpressionFactory.newInstance();
ELContext context = new ELContextImpl(factory);
TesterBeanC beanC = new TesterBeanC();
ValueExpression var =
factory.createValueExpression(beanC, TesterBeanC.class);
context.getVariableMapper().setVariable("myBean", var);
ValueExpression ve = factory.createValueExpression(context,
"${(myBean.int1 > 1 and myBean.myBool) or "+
"((myBean.myBool or myBean.myBool1) and myBean.int1 > 1)}",
Boolean.class);
Assert.assertEquals(Boolean.FALSE, ve.getValue(context));
beanC.setInt1(2);
beanC.setMyBool1(true);
Assert.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);
Assert.assertEquals(expected, result);
}
}
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