/**
 * Copyright (C) 2010-14 diirt developers. See COPYRIGHT.TXT
 * All rights reserved. Use is subject to license terms. See LICENSE.TXT
 */
package org.diirt.datasource.timecache.util;

import java.text.ParseException;
import java.time.Duration;

import org.diirt.datasource.timecache.util.IntervalsList;
import org.diirt.datasource.timecache.util.TimestampsSet;
import org.junit.Assert;
import org.junit.Test;

/**
 * Test {@link TimestampsSet}: transform a list of {@link Timestamp} to an
 * {@link IntervalsList}.
 * @author Fred Arnaud (Sopra Group) - ITER
 */
public class TimestampsSetUnitTest {

    /**
     * Test that {@link IntervalsList} result of {@link TimestampsSet}
     * transformation algorithm contains the specified intervals.
     */
    @Test
    public void testToIntervalsList() {
        try {
            TimestampsSet set = new TimestampsSet();
            set.setTolerance(Duration.ofMinutes(5));

            set.add(null);
            IntervalsList result = set.toIntervalsList();
            Assert.assertEquals(0, result.getSize());

            set.add(UnitTestUtils.timestampOf("16:00"));
            result = set.toIntervalsList();
            Assert.assertEquals(1, result.getSize());
            Assert.assertTrue(result.contains(UnitTestUtils.timeIntervalOf("16:00", "16:05")));

            set.add(UnitTestUtils.timestampOf("16:01"));
            set.add(UnitTestUtils.timestampOf("16:05"));
            set.add(UnitTestUtils.timestampOf("16:10"));
            set.add(UnitTestUtils.timestampOf("16:30"));
            set.add(UnitTestUtils.timestampOf("16:35"));
            result = set.toIntervalsList();
            Assert.assertEquals(2, result.getSize());
            Assert.assertTrue(result.contains(UnitTestUtils.timeIntervalOf("16:00", "16:10")));
            Assert.assertTrue(result.contains(UnitTestUtils.timeIntervalOf("16:30", "16:35")));

        } catch (ParseException e) {
            Assert.fail(e.getMessage());
        }
    }

}