app/src/test/java/org/apache/roller/util/PropertyExpanderTest.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  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.  For additional information regarding
 * copyright in this work, please see the NOTICE file in the top level
 * directory of this distribution.
 */

package org.apache.roller.util;

import org.junit.jupiter.api.Test;

import java.util.HashMap;
import java.util.Map;

import static org.junit.jupiter.api.Assertions.assertEquals;

/**
 * Unit test for org.apache.roller.weblogger.util.PropertyExpander.
 *
 * @author <a href="mailto:anil@busybuddha.org">Anil Gangolli</a>
 */
class PropertyExpanderTest  {
    
    private static final Map<String, String> props = new HashMap<>();
    
    static {
        props.put("defined.property.one", "value one");
        props.put("defined.property.two", "value two");
        props.put("defined.property.with.dollar.sign.in.value", "$2");
    }

    @Test
    void testExpansion() throws Exception {
        String expanded =
                PropertyExpander.expandProperties("String with ${defined.property.one} and ${defined.property.two} and ${defined.property.with.dollar.sign.in.value} and ${undefined.property} and some stuff.", props);
        
        assertEquals(expanded,
            "String with value one and value two and $2 and ${undefined.property} and some stuff.",
            "Expanded string doesn't match expected");
    }

    @Test
    void testSystemProperty() throws Exception {
        String expanded = PropertyExpander.expandSystemProperties("${java.home}");
        assertEquals(expanded,
            System.getProperty("java.home"),
            "Expanded string doesn't match expected"
        );
    }
    
}