DateProcessorTest.java

package io.konik.csv.processor;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

import java.text.DateFormat;
import java.text.ParseException;
import java.util.Arrays;
import java.util.Date;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.runners.Parameterized.Parameter;
import static org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class DateProcessorTest {

	private final DateProcessor processor = new DateProcessor();

	@Parameter
	public String dateStr;

	@Parameter(1)
	public Date expectedDate;

	@Parameters(name = "{1}")
	public static Iterable<Object[]> getParams() throws ParseException {
		DateFormat dateFormat = new DateProcessor().getDateFormat();

		return Arrays.asList(
				new Object[] { "20150101", dateFormat.parse("20150101") },
				new Object[] { "19960130", dateFormat.parse("19960130") },
				new Object[] { "20000101", dateFormat.parse("20000101") },
				new Object[] { "19991231", dateFormat.parse("19991231") },
				new Object[] { "20120229", dateFormat.parse("20120229") },
				new Object[] { "33333333", dateFormat.parse("33351003") }
		);
	}

	@Test
	public void convertDateStrToZfDate() {
		//when:
		Date date = (Date) processor.execute(dateStr, null);

		//then:
		assertThat(date).isEqualTo(expectedDate);
	}
}