/*
* 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 javax.el;
import java.util.List;
import javax.el.TesterEvaluationListener.Pair;
import org.junit.Assert;
import org.junit.Test;
public class TestEvaluationListener {
@Test
public void testPropertyResolved01() {
ELContext context = new TesterELContext();
ELResolver resolver = new BeanELResolver();
TesterBean bean = new TesterBean("test");
TesterEvaluationListener listener = new TesterEvaluationListener();
context.addEvaluationListener(listener);
Object result = resolver.getValue(context, bean, "name");
Assert.assertTrue(context.isPropertyResolved());
Assert.assertEquals("test", result);
List<Pair> events = listener.getResolvedProperties();
Assert.assertEquals(1, events.size());
Pair p = events.get(0);
Assert.assertEquals(bean, p.getBase());
Assert.assertEquals("name", p.getProperty());
}
@Test
public void testPropertyResolved02() {
ELContext context = new TesterELContext();
ELResolver resolver = new BeanELResolver();
TesterBean bean = new TesterBean("test");
TesterEvaluationListener listener = new TesterEvaluationListener();
context.addEvaluationListener(listener);
Exception exception = null;
try {
resolver.getValue(context, bean, "foo");
} catch (PropertyNotFoundException e) {
exception = e;
}
Assert.assertNotNull(exception);
// Still expect the property to be resolved and the listener to fire
// since the vent is at the time of resolution. The EL spec could be a
// lot clear on this.
Assert.assertTrue(context.isPropertyResolved());
List<Pair> events = listener.getResolvedProperties();
Assert.assertEquals(1, events.size());
Pair p = events.get(0);
Assert.assertEquals(bean, p.getBase());
Assert.assertEquals("foo", p.getProperty());
}
@Test
public void testEvaluation01() {
ExpressionFactory factory = ELManager.getExpressionFactory();
ELContext context = new TesterELContext();
String expression = "${1 + 1}";
ValueExpression ve =
factory.createValueExpression(context, expression, int.class);
TesterEvaluationListener listener = new TesterEvaluationListener();
context.addEvaluationListener(listener);
Object result = ve.getValue(context);
// Check the result
Assert.assertEquals(Integer.valueOf(2), result);
List<String> before = listener.getBeforeEvaluationExpressions();
Assert.assertEquals(1, before.size());
Assert.assertEquals(expression, before.get(0));
List<String> after = listener.getAfterEvaluationExpressions();
Assert.assertEquals(1, after.size());
Assert.assertEquals(expression, after.get(0));
}
@Test
public void testEvaluation02() {
ExpressionFactory factory = ELManager.getExpressionFactory();
ELContext context = new TesterELContext(new CompositeELResolver());
String expression = "${foo.bar + 1}";
ValueExpression ve =
factory.createValueExpression(context, expression, int.class);
TesterEvaluationListener listener = new TesterEvaluationListener();
context.addEvaluationListener(listener);
Exception e = null;
try {
ve.getValue(context);
} catch (PropertyNotFoundException pnfe) {
e = pnfe;
}
Assert.assertNotNull(e);
List<String> before = listener.getBeforeEvaluationExpressions();
Assert.assertEquals(1, before.size());
Assert.assertEquals(expression, before.get(0));
List<String> after = listener.getAfterEvaluationExpressions();
Assert.assertEquals(0, after.size());
}
}