/*
* Copyright 2002-2016 the original author or authors.
*
* Licensed 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.springframework.expression.spel.standard;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.UUID;
import org.junit.Test;
import org.springframework.expression.Expression;
import org.springframework.expression.spel.support.StandardEvaluationContext;
import static org.junit.Assert.*;
/**
* @author Mark Fisher
*/
public class PropertiesConversionSpelTests {
private static final SpelExpressionParser parser = new SpelExpressionParser();
@Test
public void props() {
Properties props = new Properties();
props.setProperty("x", "1");
props.setProperty("y", "2");
props.setProperty("z", "3");
Expression expression = parser.parseExpression("foo(#props)");
StandardEvaluationContext context = new StandardEvaluationContext();
context.setVariable("props", props);
String result = expression.getValue(context, new TestBean(), String.class);
assertEquals("123", result);
}
@Test
public void mapWithAllStringValues() {
Map<String, Object> map = new HashMap<>();
map.put("x", "1");
map.put("y", "2");
map.put("z", "3");
Expression expression = parser.parseExpression("foo(#props)");
StandardEvaluationContext context = new StandardEvaluationContext();
context.setVariable("props", map);
String result = expression.getValue(context, new TestBean(), String.class);
assertEquals("123", result);
}
@Test
public void mapWithNonStringValue() {
Map<String, Object> map = new HashMap<>();
map.put("x", "1");
map.put("y", 2);
map.put("z", "3");
map.put("a", new UUID(1, 1));
Expression expression = parser.parseExpression("foo(#props)");
StandardEvaluationContext context = new StandardEvaluationContext();
context.setVariable("props", map);
String result = expression.getValue(context, new TestBean(), String.class);
assertEquals("1null3", result);
}
@Test
public void customMapWithNonStringValue() {
CustomMap map = new CustomMap();
map.put("x", "1");
map.put("y", 2);
map.put("z", "3");
Expression expression = parser.parseExpression("foo(#props)");
StandardEvaluationContext context = new StandardEvaluationContext();
context.setVariable("props", map);
String result = expression.getValue(context, new TestBean(), String.class);
assertEquals("1null3", result);
}
private static class TestBean {
@SuppressWarnings("unused")
public String foo(Properties props) {
return props.getProperty("x") + props.getProperty("y") + props.getProperty("z");
}
}
@SuppressWarnings("serial")
private static class CustomMap extends HashMap<String, Object> {
}
}