juneau-utest-utils/src/main/java/org/apache/juneau/testutils/TestUtils.java

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// *  http://www.apache.org/licenses/LICENSE-2.0                                                                             *
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package org.apache.juneau.testutils;

import java.util.*;

@SuppressWarnings({})
public class TestUtils {

	private static ThreadLocal<TimeZone> systemTimeZone = new ThreadLocal<>();
	private static ThreadLocal<Locale> systemLocale = new ThreadLocal<>();

	/**
	 * Temporarily sets the default system timezone to the specified timezone ID.
	 * Use {@link #unsetTimeZone()} to unset it.
	 *
	 * @param name
	 */
	public synchronized static final void setTimeZone(String name) {
		systemTimeZone.set(TimeZone.getDefault());
		TimeZone.setDefault(TimeZone.getTimeZone(name));
	}

	public synchronized static final void unsetTimeZone() {
		TimeZone.setDefault(systemTimeZone.get());
	}

	/**
	 * Temporarily sets the default system locale to the specified locale.
	 * Use {@link #unsetLocale()} to unset it.
	 *
	 * @param name
	 */
	public static final void setLocale(Locale locale) {
		systemLocale.set(Locale.getDefault());
		Locale.setDefault(locale);
	}

	public static final void unsetLocale() {
		Locale.setDefault(systemLocale.get());
	}
}