/*
* 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.beans.FeatureDescriptor;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.junit.Assert ;
import org.junit.Test;
public class TestMapELResolver {
/**
* Tests that a null context results in an NPE as per EL Javadoc .
*/
@Test(expected = NullPointerException.class )
public void testGetType01() {
MapELResolver mapELResolver = new MapELResolver();
mapELResolver.getType(null , new Object(), new Object());
}
/**
* Tests that a valid property is not resolved if base is not Map .
*/
@Test
public void testGetType02() {
doNegativeTest(new Object(), new Object(), MethodUnderTest.GET_TYPE, true );
}
/**
* Tests that a valid property is resolved .
*/
@Test
public void testGetType03() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Class <?> result = mapELResolver.getType(context, new HashMap<>(), "test" );
Assert .assertEquals(Object.class , result);
Assert .assertTrue(context.isPropertyResolved());
}
/**
* Tests that a null context results in an NPE as per EL Javadoc .
*/
@Test(expected = NullPointerException.class )
public void testGetValue01() {
MapELResolver mapELResolver = new MapELResolver();
mapELResolver.getValue(null , new Object(), new Object());
}
/**
* Tests that a valid property is not resolved if base is not Map .
*/
@Test
public void testGetValue02() {
doNegativeTest(new Object(), new Object(), MethodUnderTest.GET_VALUE, true );
}
/**
* Tests that a valid property is resolved .
*/
@Test
public void testGetValue03() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Map<String, String> map = new HashMap<>();
map.put("key" , "value" );
Object result = mapELResolver.getValue(context, map, "key" );
Assert .assertEquals("value" , result);
Assert .assertTrue(context.isPropertyResolved());
result = mapELResolver.getValue(context, map, "unknown-key" );
Assert .assertNull(result);
Assert .assertTrue(context.isPropertyResolved());
}
/**
* Tests that a null context results in an NPE as per EL Javadoc .
*/
@Test(expected = NullPointerException.class )
public void testSetValue01() {
MapELResolver mapELResolver = new MapELResolver();
mapELResolver.setValue(null , new Object(), new Object(), new Object());
}
/**
* Tests that a valid property is not set if base is not Map .
*/
@Test
public void testSetValue02() {
doNegativeTest(new Object(), new Object(), MethodUnderTest.SET_VALUE, false );
}
/**
* Tests that an exception is thrown when readOnly is true .
*/
@Test(expected = PropertyNotWritableException.class )
public void testSetValue03() {
MapELResolver mapELResolver = new MapELResolver(true );
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
mapELResolver.setValue(context, new HashMap<>(), new Object(), new Object());
}
/**
* Tests that a valid property is set .
*/
@Test
public void testSetValue04() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Map<String, String> map = new HashMap<>();
mapELResolver.setValue(context, map, "key" , "value" );
Assert .assertEquals("value" , mapELResolver.getValue(context, map, "key" ));
Assert .assertTrue(context.isPropertyResolved());
}
/**
* Tests that an exception is thrown when the map is not modifiable .
*/
@Test(expected = PropertyNotWritableException.class )
public void testSetValue05() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Map<Object, Object> map = Collections.unmodifiableMap(new HashMap<>());
mapELResolver.setValue(context, map, "key" , "value" );
}
/**
* Tests that a null context results in an NPE as per EL Javadoc .
*/
@Test(expected = NullPointerException.class )
public void testIsReadOnly01() {
MapELResolver mapELResolver = new MapELResolver();
mapELResolver.isReadOnly(null , new Object(), new Object());
}
/**
* Tests that the propertyResolved is false if base is not Map .
*/
@Test
public void testIsReadOnly02() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
boolean result = mapELResolver.isReadOnly(context, new Object(), new Object());
Assert .assertFalse(result);
Assert .assertFalse(context.isPropertyResolved());
mapELResolver = new MapELResolver(true );
result = mapELResolver.isReadOnly(context, new Object(), new Object());
Assert .assertTrue(result);
Assert .assertFalse(context.isPropertyResolved());
}
/**
* Tests that if the MapELResolver is constructed with readOnly the method will return always true , otherwise false .
*/
@Test
public void testIsReadOnly03() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
boolean result = mapELResolver.isReadOnly(context, new HashMap<>(), new Object());
Assert .assertFalse(result);
Assert .assertTrue(context.isPropertyResolved());
mapELResolver = new MapELResolver(true );
result = mapELResolver.isReadOnly(context, new HashMap<>(), new Object());
Assert .assertTrue(result);
Assert .assertTrue(context.isPropertyResolved());
}
/**
* Tests that the readOnly is true always when the map is not modifiable .
*/
@Test
public void testIsReadOnly04() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Map<Object, Object> map = Collections.unmodifiableMap(new HashMap<>());
boolean result = mapELResolver.isReadOnly(context, map, new Object());
Assert .assertTrue(result);
Assert .assertTrue(context.isPropertyResolved());
}
/**
* Tests that a valid FeatureDescriptors are not returned if base is not Map .
*/
@Deprecated(forRemoval = true , since = "Tomcat 10.1.0" )
@Test
public void testGetFeatureDescriptors01() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Iterator<FeatureDescriptor> result = mapELResolver.getFeatureDescriptors(context, new Object());
Assert .assertNull(result);
}
/**
* Tests that a valid FeatureDescriptors are returned .
*/
@Deprecated(forRemoval = true , since = "Tomcat 10.1.0" )
@Test
public void testGetFeatureDescriptors02() {
MapELResolver mapELResolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Map<String, String> map = new HashMap<>();
map.put("key" , "value" );
Iterator<FeatureDescriptor> result = mapELResolver.getFeatureDescriptors(context, map);
while (result.hasNext()) {
FeatureDescriptor featureDescriptor = result.next();
Assert .assertEquals("key" , featureDescriptor.getDisplayName());
Assert .assertEquals("key" , featureDescriptor.getName());
Assert .assertEquals("" , featureDescriptor.getShortDescription());
Assert .assertFalse(featureDescriptor.isExpert());
Assert .assertFalse(featureDescriptor.isHidden());
Assert .assertTrue(featureDescriptor.isPreferred());
Assert .assertEquals("key" .getClass(), featureDescriptor.getValue(ELResolver.TYPE));
Assert .assertEquals(Boolean .TRUE , featureDescriptor.getValue(ELResolver.RESOLVABLE_AT_DESIGN_TIME));
}
}
private void doNegativeTest(Object base, Object trigger, MethodUnderTest method, boolean checkResult) {
MapELResolver resolver = new MapELResolver();
ELContext context = new StandardELContext(ELManager.getExpressionFactory());
Object result = null ;
switch (method) {
case GET_VALUE: {
result = resolver.getValue(context, base, trigger);
break ;
}
case SET_VALUE: {
resolver.setValue(context, base, trigger, new Object());
break ;
}
case GET_TYPE: {
result = resolver.getType(context, base, trigger);
break ;
}
default : {
// Should never happen
Assert .fail("Missing case for method" );
}
}
if (checkResult) {
Assert .assertNull(result);
}
Assert .assertFalse(context.isPropertyResolved());
}
private enum MethodUnderTest {
GET_VALUE,
SET_VALUE,
GET_TYPE
}
}
Messung V0.5 in Prozent C=94 H=96 G=94
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-30)
¤
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