/*
* 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.jasper.el;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;
import javax.el.ELResolver;
import javax.servlet.jsp.el.ImplicitObjectELResolver;
import org.junit.Assert;
import org.junit.Test;
import org.apache.el.stream.StreamELResolverImpl;
public class TestJasperELResolver {
@Test
public void testConstructorNone() throws Exception {
doTestConstructor(0);
}
@Test
public void testConstructorOne() throws Exception {
doTestConstructor(1);
}
@Test
public void testConstructorFive() throws Exception {
doTestConstructor(5);
}
private void doTestConstructor(int count) throws Exception {
List<ELResolver> list = new ArrayList<>();
for (int i = 0; i < count; i++) {
list.add(new ImplicitObjectELResolver());
}
JasperELResolver resolver =
new JasperELResolver(list, new StreamELResolverImpl());
Assert.assertEquals(Integer.valueOf(count),
getField("appResolversSize", resolver));
Assert.assertEquals(9 + count,
((ELResolver[])getField("resolvers", resolver)).length);
Assert.assertEquals(Integer.valueOf(9 + count),
getField("size", resolver));
}
private static final Object getField(String name, Object target)
throws NoSuchFieldException, SecurityException,
IllegalArgumentException, IllegalAccessException {
Field field = target.getClass().getDeclaredField(name);
field.setAccessible(true);
return field.get(target);
}
}