/*
* 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 java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import javax.el.ELContext;
import javax.el.ELManager;
import javax.el.ELProcessor;
import javax.el.ExpressionFactory;
import javax.el.ValueExpression;
import org.junit.Assert;
import org.junit.Test;
public class TestAstMapData {
private static final Map<String,String> simpleMap = new HashMap<>();
private static final Map<Object,Object> nestedMap = new HashMap<>();
static {
simpleMap.put("a", "1");
simpleMap.put("b", "2");
simpleMap.put("c", "3");
nestedMap.put("simple", simpleMap);
// {} will get parsed as an empty Set as there is nothing to hint to the
// parser that Map is expected here.
nestedMap.put("empty", Collections.EMPTY_SET);
nestedMap.put("d", "4");
}
@Test
public void testSimple01() {
ELProcessor processor = new ELProcessor();
Object result = processor.getValue(
"{'a':'1','b':'2','c':'3'}", Map.class);
Assert.assertEquals(simpleMap, result);
}
@Test
public void testSimple02() {
ELProcessor processor = new ELProcessor();
Object result = processor.getValue("{}", Map.class);
Assert.assertEquals(Collections.EMPTY_MAP, result);
}
@Test
public void testNested01() {
ELProcessor processor = new ELProcessor();
Object result = processor.getValue(
"{'simple':{'a':'1','b':'2','c':'3'}," +
"'empty':{}," +
"'d':'4'}", Map.class);
Assert.assertEquals(nestedMap, result);
}
@Test
public void testGetType() {
ELProcessor processor = new ELProcessor();
ELContext context = processor.getELManager().getELContext();
ExpressionFactory factory = ELManager.getExpressionFactory();
ValueExpression ve = factory.createValueExpression(
context, "${{'a':'1','b':'2','c':'3'}}", Map.class);
Assert.assertEquals(Map.class, ve.getType(context));
Assert.assertEquals(simpleMap, ve.getValue(context));
}
}