001/*
002 * ModeShape (http://www.modeshape.org)
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *       http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.modeshape.common.math;
017
018import static org.junit.Assert.assertEquals;
019import static org.junit.Assert.assertNotNull;
020import java.text.DecimalFormat;
021import java.util.concurrent.TimeUnit;
022import org.junit.Before;
023import org.junit.Test;
024
025public class DurationTest {
026
027    private Duration duration;
028
029    @Before
030    public void beforeEach() {
031        this.duration = new Duration(0);
032    }
033
034    @Test
035    public void shouldBeEmptyWhenInitialized() {
036        assertEquals(0, this.duration.getComponents().getHours());
037        assertEquals(0, this.duration.getComponents().getMinutes());
038        assertEquals(0.0d, this.duration.getComponents().getSeconds(), 0.00001d);
039    }
040
041    @Test
042    public void shouldHaveComponentsWhenInitialized() {
043        assertNotNull(this.duration.getComponents());
044    }
045
046    @Test
047    public void shouldBeAllowedToAddSeconds() {
048        this.duration = this.duration.add(1, TimeUnit.SECONDS);
049        assertEquals(0, this.duration.getComponents().getHours());
050        assertEquals(0, this.duration.getComponents().getMinutes());
051        assertEquals(1.0d, this.duration.getComponents().getSeconds(), 0.00001d);
052    }
053
054    /**
055     * Need to be careful about comparing strings, because {@link DecimalFormat} is used and relies upon the default locale. What
056     * we do know is:
057     * <ul>
058     * <li>the hours will be at least 2 digits (zero-padded at beginning);</li>
059     * <li>the minutes will be 2 digits (zero-padded at beginning);</li>
060     * <li>the seconds will be formatted according to "00.000,###" using DecimalFormat and the default locale (which may use a
061     * different decimal point delimiter than '.') and where the ',' is only used if there are more than 3 digits used in the
062     * fractional part;</li>
063     * <li>the hours, minutes and seconds will be delimited with a ':';</li>
064     */
065    @Test
066    public void shouldRepresentTimeInProperFormat() {
067        this.duration = this.duration.add(2, TimeUnit.SECONDS);
068        assertEquals(this.duration.toString().startsWith("00:00:02"), true);
069        assertEquals(this.duration.toString().endsWith("000"), true);
070
071        this.duration = new Duration(1100, TimeUnit.MILLISECONDS);
072        this.duration = this.duration.add(1 * 60, TimeUnit.SECONDS);
073        this.duration = this.duration.add(1 * 60 * 60, TimeUnit.SECONDS);
074        assertEquals(this.duration.toString().startsWith("01:01:01"), true);
075        assertEquals(this.duration.toString().endsWith("100"), true);
076
077        this.duration = new Duration(30100123, TimeUnit.MICROSECONDS);
078        this.duration = this.duration.add(20 * 60, TimeUnit.SECONDS);
079        this.duration = this.duration.add(10 * 60 * 60, TimeUnit.SECONDS);
080        assertEquals(this.duration.toString().startsWith("10:20:30"), true);
081        assertEquals(this.duration.toString().endsWith("100,123"), true);
082    }
083
084}