JUnitDateNumberFormat.java

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package plotter;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.TimeZone;

import junit.framework.TestCase;

public class JUnitDateNumberFormat extends TestCase {
	public void testFormat() {
		DateFormat baseFormat = new SimpleDateFormat("yyyy-MM-dd");
		baseFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
		DateNumberFormat format = new DateNumberFormat(baseFormat);
		assertEquals("1970-01-01", format.format(0L));
		assertEquals("2001-09-09", format.format(1000000000000L));
		assertEquals("1970-01-01", format.format(0.0));
		assertEquals("2001-09-09", format.format(1000000000000.0));
		assertSame(baseFormat, format.getBaseFormat());
	}


	public void testParse() throws ParseException {
		DateFormat baseFormat = new SimpleDateFormat("yyyy-MM-dd");
		baseFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
		DateNumberFormat format = new DateNumberFormat(baseFormat);
		assertEquals(946684800000L, format.parse("2000-01-01"));
		assertEquals(1317340800000L, format.parse("2011-09-30"));
	}
}