54 lines
2.2 KiB
Java
54 lines
2.2 KiB
Java
package com.baeldung.date.comparison;
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import org.junit.jupiter.api.Test;
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import java.time.LocalDateTime;
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import java.time.ZoneId;
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import java.util.Date;
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import static org.hamcrest.Matchers.is;
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import static org.junit.Assert.assertThat;
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class LegacyDateComparisonUtilsUnitTest {
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private Date toDate(LocalDateTime localDateTime) {
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return Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
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}
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@Test
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void givenDatesWithDifferentHours_whenIsSameDay_thenReturnsTrue() {
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Date firstDate = toDate(LocalDateTime.of(2019, 8, 10, 11, 00, 00));
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Date secondDate = toDate(LocalDateTime.of(2019, 8, 10, 12, 00, 00));
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Date thirdDate = toDate(LocalDateTime.of(2019, 8, 15, 12, 00, 00));
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assertThat(LegacyDateComparisonUtils.isSameDay(firstDate, secondDate), is(true));
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assertThat(LegacyDateComparisonUtils.isSameDay(secondDate, thirdDate), is(false));
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}
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@Test
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void givenDatesWithingSameHour_whenIsSameHour_thenReturnsTrue() {
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Date firstDate = toDate(LocalDateTime.of(2019, 8, 10, 11, 00, 00));
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Date secondDate = toDate(LocalDateTime.of(2019, 8, 10, 11, 15, 00));
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Date thirdDate = toDate(LocalDateTime.of(2019, 8, 10, 12, 00, 00));
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assertThat(LegacyDateComparisonUtils.isSameHour(firstDate, secondDate), is(true));
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assertThat(LegacyDateComparisonUtils.isSameHour(secondDate, thirdDate), is(false));
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}
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@Test
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void givenDates__whenComparing_thenAssertsPass() {
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Date firstDate = toDate(LocalDateTime.of(2019, 8, 10, 0, 00, 00));
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Date secondDate = toDate(LocalDateTime.of(2019, 8, 15, 0, 00, 00));
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Date thirdDate = toDate(LocalDateTime.of(2019, 8, 15, 0, 00, 00)); // same date as secondDate
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assertThat(firstDate.after(secondDate), is(false));
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assertThat(firstDate.before(secondDate), is(true));
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assertThat(firstDate.compareTo(secondDate), is(-1));
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assertThat(firstDate.equals(secondDate), is(false));
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assertThat(thirdDate.after(secondDate), is(false));
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assertThat(thirdDate.before(secondDate), is(false));
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assertThat(thirdDate.compareTo(secondDate), is(0));
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assertThat(thirdDate.equals(secondDate), is(true));
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}
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} |