/*
* 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 jakarta.el;
import java.util.List;
import jakarta.el.TesterEvaluationListener.Pair;
import org.junit.Assert;
import org.junit.Test;
public class TestELContext {
/**
* Tests that a null key results in an NPE as per EL Javadoc.
*/
@Test(expected = NullPointerException.class)
public void testGetContext() {
ELContext elContext = new TesterELContext();
elContext.getContext(null);
}
/**
* Tests that a null key results in an NPE as per EL Javadoc.
*/
@Test(expected = NullPointerException.class)
public void testPutContext01() {
ELContext elContext = new TesterELContext();
elContext.putContext(null, new Object());
}
/**
* Tests that a null context results in an NPE as per EL Javadoc.
*/
@Test(expected = NullPointerException.class)
public void testPutContext02() {
ELContext elContext = new TesterELContext();
elContext.putContext(Object.class, null);
}
/**
* Tests that the context object will be added to the map with context objects. The key is used as unique identifier
* of the context object in the map.
*/
@Test
public void testPutContext03() {
ELContext elContext = new TesterELContext();
Assert.assertNull(elContext.getContext(String.class));
elContext.putContext(String.class, "test");
Assert.assertEquals("test", elContext.getContext(String.class));
elContext.putContext(String.class, "test1");
Assert.assertEquals("test1", elContext.getContext(String.class));
}
/**
* Tests that propertyResolved will be set to true and the corresponding listeners will be notified.
*/
@Test
public void testSetPropertyResolved() {
ELContext elContext = new TesterELContext();
TesterEvaluationListener listener = new TesterEvaluationListener();
elContext.addEvaluationListener(listener);
TesterBean bean = new TesterBean("test");
elContext.setPropertyResolved(bean, "name");
Assert.assertTrue(elContext.isPropertyResolved());
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());
}
/**
* Tests that the corresponding listeners will be notified.
*/
@Test
public void testNotifyBeforeEvaluation() {
ELContext elContext = new TesterELContext();
TesterEvaluationListener listener = new TesterEvaluationListener();
elContext.addEvaluationListener(listener);
elContext.notifyBeforeEvaluation("before");
List<String> events = listener.getBeforeEvaluationExpressions();
Assert.assertEquals(1, events.size());
Assert.assertEquals("before", events.get(0));
}
/**
* Tests that the corresponding listeners will be notified.
*/
@Test
public void testNotifyAfterEvaluation() {
ELContext elContext = new TesterELContext();
TesterEvaluationListener listener = new TesterEvaluationListener();
elContext.addEvaluationListener(listener);
elContext.notifyAfterEvaluation("after");
List<String> events = listener.getAfterEvaluationExpressions();
Assert.assertEquals(1, events.size());
Assert.assertEquals("after", events.get(0));
}
/**
* Tests not compatible object and type.
*/
@Test(expected = ELException.class)
public void testConvertToType01() {
ELContext elContext = new TesterELContext();
elContext.convertToType("test", Integer.class);
}
/**
* Tests that if there is no ELResolver the standard coercions will be invoked.
*/
@Test
public void testConvertToType02() {
ELContext elContext = new TesterELContext();
boolean originalPropertyResolved = false;
elContext.setPropertyResolved(originalPropertyResolved);
Object result = elContext.convertToType("test", String.class);
Assert.assertEquals("test", result);
Assert.assertTrue(originalPropertyResolved == elContext.isPropertyResolved());
}
/**
* Tests that if there is ELResolver it will handle the conversion. If this resolver cannot return a result the
* standard coercions will be invoked.
*/
@Test
public void testConvertToType03() {
ELContext elContext = new TesterELContext(new TesterELResolverOne());
boolean originalPropertyResolved = false;
elContext.setPropertyResolved(originalPropertyResolved);
Object result = elContext.convertToType("1", String.class);
Assert.assertEquals("ONE", result);
Assert.assertTrue(originalPropertyResolved == elContext.isPropertyResolved());
result = elContext.convertToType("test", String.class);
Assert.assertEquals("test", result);
Assert.assertTrue(originalPropertyResolved == elContext.isPropertyResolved());
}
}