/*
* Copyright 2002-2012 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.util;
import java.util.Properties;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Rob Harrop
*/
public class PropertyPlaceholderHelperTests {
private final PropertyPlaceholderHelper helper = new PropertyPlaceholderHelper("${", "}");
@Test
public void testWithProperties() {
String text = "foo=${foo}";
Properties props = new Properties();
props.setProperty("foo", "bar");
assertEquals("foo=bar", this.helper.replacePlaceholders(text, props));
}
@Test
public void testWithMultipleProperties() {
String text = "foo=${foo},bar=${bar}";
Properties props = new Properties();
props.setProperty("foo", "bar");
props.setProperty("bar", "baz");
assertEquals("foo=bar,bar=baz", this.helper.replacePlaceholders(text, props));
}
@Test
public void testRecurseInProperty() {
String text = "foo=${bar}";
Properties props = new Properties();
props.setProperty("bar", "${baz}");
props.setProperty("baz", "bar");
assertEquals("foo=bar", this.helper.replacePlaceholders(text, props));
}
@Test
public void testRecurseInPlaceholder() {
String text = "foo=${b${inner}}";
Properties props = new Properties();
props.setProperty("bar", "bar");
props.setProperty("inner", "ar");
assertEquals("foo=bar", this.helper.replacePlaceholders(text, props));
text = "${top}";
props = new Properties();
props.setProperty("top", "${child}+${child}");
props.setProperty("child", "${${differentiator}.grandchild}");
props.setProperty("differentiator", "first");
props.setProperty("first.grandchild", "actualValue");
assertEquals("actualValue+actualValue", this.helper.replacePlaceholders(text, props));
}
@Test
public void testWithResolver() {
String text = "foo=${foo}";
assertEquals("foo=bar",
this.helper.replacePlaceholders(text, new PropertyPlaceholderHelper.PlaceholderResolver() {
@Override
public String resolvePlaceholder(String placeholderName) {
if ("foo".equals(placeholderName)) {
return "bar";
}
else {
return null;
}
}
}));
}
@Test
public void testUnresolvedPlaceholderIsIgnored() {
String text = "foo=${foo},bar=${bar}";
Properties props = new Properties();
props.setProperty("foo", "bar");
assertEquals("foo=bar,bar=${bar}", this.helper.replacePlaceholders(text, props));
}
@Test(expected = IllegalArgumentException.class)
public void testUnresolvedPlaceholderAsError() {
String text = "foo=${foo},bar=${bar}";
Properties props = new Properties();
props.setProperty("foo", "bar");
PropertyPlaceholderHelper helper = new PropertyPlaceholderHelper("${", "}", null, false);
assertEquals("foo=bar,bar=${bar}", helper.replacePlaceholders(text, props));
}
}