/*
* 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.commons.lang3.text;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;
import java.util.HashMap;
import java.util.Map;
import org.junit.Test;
/**
* Test class for StrLookup.
*
* @version $Id$
*/
public class StrLookupTest {
//-----------------------------------------------------------------------
@Test
public void testNoneLookup() {
assertEquals(null, StrLookup.noneLookup().lookup(null));
assertEquals(null, StrLookup.noneLookup().lookup(""));
assertEquals(null, StrLookup.noneLookup().lookup("any"));
}
@Test
public void testSystemProperiesLookup() {
assertEquals(System.getProperty("os.name"), StrLookup.systemPropertiesLookup().lookup("os.name"));
assertEquals(null, StrLookup.systemPropertiesLookup().lookup(""));
assertEquals(null, StrLookup.systemPropertiesLookup().lookup("other"));
try {
StrLookup.systemPropertiesLookup().lookup(null);
fail();
} catch (final NullPointerException ex) {
// expected
}
}
@Test
public void testMapLookup() {
final Map<String, Object> map = new HashMap<String, Object>();
map.put("key", "value");
map.put("number", Integer.valueOf(2));
assertEquals("value", StrLookup.mapLookup(map).lookup("key"));
assertEquals("2", StrLookup.mapLookup(map).lookup("number"));
assertEquals(null, StrLookup.mapLookup(map).lookup(null));
assertEquals(null, StrLookup.mapLookup(map).lookup(""));
assertEquals(null, StrLookup.mapLookup(map).lookup("other"));
}
@Test
public void testMapLookup_nullMap() {
final Map<String, ?> map = null;
assertEquals(null, StrLookup.mapLookup(map).lookup(null));
assertEquals(null, StrLookup.mapLookup(map).lookup(""));
assertEquals(null, StrLookup.mapLookup(map).lookup("any"));
}
}