impl/src/test/java/org/apache/geronimo/config/test/testng/SystemPropertiesLeakProtector.java

/*
 * 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.geronimo.config.test.testng;

import org.testng.ITestContext;
import org.testng.TestListenerAdapter;

import java.util.Properties;

public class SystemPropertiesLeakProtector extends TestListenerAdapter {
    private Properties props;

    @Override
    public void onStart(final ITestContext context) {
        props = new Properties();
        props.putAll(System.getProperties());
        props.put("org.apache.geronimo.config.configsource.SystemPropertyConfigSource.copy", "false");
    }

    @Override
    public void onFinish(final ITestContext testContext) {
        System.getProperties().clear(); // keep the same ref
        System.getProperties().putAll(props);
    }
}