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Megaprog/Rfc3339Test.java

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  1. Megaprog revised this gist Aug 8, 2019. No changes.
  2. Megaprog created this gist Aug 8, 2019.
    47 changes: 47 additions & 0 deletions Rfc3339Test.java
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    package rfc3339;

    import org.junit.jupiter.api.Assertions;
    import org.junit.jupiter.api.Test;
    import org.junit.jupiter.api.function.Executable;

    import java.time.ZoneOffset;
    import java.time.ZonedDateTime;
    import java.time.format.DateTimeFormatter;
    import java.time.format.ResolverStyle;

    public class Rfc3339Test {
    public static final DateTimeFormatter rfc3339Formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss[.SSS]XXX")
    .withResolverStyle(ResolverStyle.LENIENT);

    public static ZonedDateTime parseRfc3339(String rfcDateTime) {
    return ZonedDateTime.parse(rfcDateTime, rfc3339Formatter);
    }

    @Test void testHourWithTimezone() {
    int hour = parseRfc3339("2019-07-19T10:14:39.812+01:00").withZoneSameInstant(ZoneOffset.UTC).getHour();
    Assertions.assertEquals(9, hour);
    }

    @Test void testUnknownLocalOffset() {
    int hour = parseRfc3339("2019-07-19T10:14:39.812-00:00").withZoneSameInstant(ZoneOffset.UTC).getHour();
    Assertions.assertEquals(10, hour);

    System.out.println(parseRfc3339("1990-12-31T23:59:60Z"));
    System.out.println(parseRfc3339("1990-12-31T15:59:60-08:00"));
    }

    /**
    * Examples are taken from <a href="https://www.ietf.org/rfc/rfc3339.txt"> RFC 3339 standard </a>
    */
    @Test void testParsingDifferentDateTimes() {
    Assertions.assertDoesNotThrow(exParseRfc3339("1985-04-12T23:20:50.52Z"));
    Assertions.assertDoesNotThrow(exParseRfc3339("1996-12-19T16:39:57-08:00"));
    Assertions.assertDoesNotThrow(exParseRfc3339("1990-12-31T23:59:60Z"));
    Assertions.assertDoesNotThrow(exParseRfc3339("1990-12-31T15:59:60-08:00"));
    Assertions.assertDoesNotThrow(exParseRfc3339("1937-01-01T12:00:27.87+00:20"));
    }

    private static Executable exParseRfc3339(String toParse) {
    return () -> parseRfc3339(toParse);
    }
    }