BAEL-5791: Convert String to Instant (#12876)

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ACHRAF TAITAI 2022-10-16 20:09:54 +02:00 committed by GitHub
parent 2c33928f44
commit 7b44b2759f
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package com.baeldung.instant;
import org.junit.Test;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
import static org.assertj.core.api.Assertions.assertThat;
public class StringToInstantConverterUnitTest {
String stringDate = "09:15:30 PM, Sun 10/09/2022";
String pattern = "hh:mm:ss a, EEE M/d/uuuu";
@Test public void givenStringTimeStamp_whenConvertingWithInstantUsingTimeZone_thenConvertToInstant() {
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(pattern, Locale.US);
LocalDateTime localDateTime = LocalDateTime.parse(stringDate, dateTimeFormatter);
ZoneId zoneId = ZoneId.of("America/Chicago");
ZonedDateTime zonedDateTime = localDateTime.atZone(zoneId);
Instant instant = zonedDateTime.toInstant();
assertThat(instant.toString()).isEqualTo("2022-10-10T02:15:30Z");
}
@Test public void givenStringTimeStamp_whenConvertingWithLocalDateTime_thenConvertToInstant() {
DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(pattern, Locale.US);
LocalDateTime localDateTime = LocalDateTime.parse(stringDate, dateTimeFormatter);
assertThat(localDateTime.toString()).isEqualTo("2022-10-09T21:15:30");
}
}