70 lines
2.3 KiB
Java
70 lines
2.3 KiB
Java
package com.baeldung.date;
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import org.junit.Test;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.Duration;
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import java.time.LocalDateTime;
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import java.util.Date;
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import java.util.Locale;
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import java.util.TimeZone;
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import java.util.concurrent.TimeUnit;
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import static org.junit.Assert.assertEquals;
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public class DateDiffUnitTest {
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@Test
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public void givenTwoDatesBeforeJava8_whenDifferentiating_thenWeGetSix() throws ParseException {
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SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy", Locale.ENGLISH);
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Date firstDate = sdf.parse("06/24/2017");
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Date secondDate = sdf.parse("06/30/2017");
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long diffInMillies = Math.abs(secondDate.getTime() - firstDate.getTime());
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long diff = TimeUnit.DAYS.convert(diffInMillies, TimeUnit.MILLISECONDS);
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDateTimesInJava8_whenDifferentiating_thenWeGetSix() {
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LocalDateTime now = LocalDateTime.now();
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LocalDateTime sixMinutesBehind = now.minusMinutes(6);
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Duration duration = Duration.between(now, sixMinutesBehind);
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long diff = Math.abs(duration.toMinutes());
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDatesInJodaTime_whenDifferentiating_thenWeGetSix() {
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org.joda.time.LocalDate now = org.joda.time.LocalDate.now();
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org.joda.time.LocalDate sixDaysBehind = now.minusDays(6);
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org.joda.time.Period period = new org.joda.time.Period(now, sixDaysBehind);
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long diff = Math.abs(period.getDays());
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assertEquals(diff, 6);
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}
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@Test
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public void givenTwoDateTimesInJodaTime_whenDifferentiating_thenWeGetSix() {
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org.joda.time.LocalDateTime now = org.joda.time.LocalDateTime.now();
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org.joda.time.LocalDateTime sixMinutesBehind = now.minusMinutes(6);
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org.joda.time.Period period = new org.joda.time.Period(now, sixMinutesBehind);
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long diff = Math.abs(period.getDays());
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}
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@Test
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public void givenTwoDatesInDate4j_whenDifferentiating_thenWeGetSix() {
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hirondelle.date4j.DateTime now = hirondelle.date4j.DateTime.now(TimeZone.getDefault());
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hirondelle.date4j.DateTime sixDaysBehind = now.minusDays(6);
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long diff = Math.abs(now.numDaysFrom(sixDaysBehind));
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assertEquals(diff, 6);
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}
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} |