errTransitionInvalid         = Errorf("Exactly one of Days (0 or greater) or Date (positive ISO 8601 format) should be present in Transition.")
	errTransitionDateNotMidnight = Errorf("'Date' must be at midnight GMT")
)

// TransitionDate is a embedded type containing time.Time to unmarshal
// Date in Transition
type TransitionDate struct {
	time.Time
}

            val triggerHour = branch.determineNightlyPromotionTriggerHour() ?: return@triggers
            // for master/release branch, we trigger them on midnight (with pending change only, i.e. if there is no change, don't rigger it)
            // for old release branches, we trigger them on midnight if there is change, or unconditionally on weekends
            when {
                branch.isMaster || branch.isRelease ->
                    schedule {

	errLifecycleInvalidDeleteMarker = Errorf("Delete marker cannot be specified with Days or Date in a Lifecycle Expiration Policy")
	errLifecycleDateNotMidnight     = Errorf("'Date' must be at midnight GMT")
	errLifecycleInvalidDeleteAll    = Errorf("Days (positive integer) should be present inside Expiration with ExpiredObjectAllVersions.")
)

// ExpirationDays is a type alias to unmarshal Days in Expiration

        String ts = metadata.metadata.getVersioning().getSnapshot().getTimestamp();
        String datePart = DATE_FILTER.matcher(ts).replaceAll("");

        /* Allow for this test running across midnight */
        Set<String> expected = new HashSet<>(Arrays.asList(dateBefore, dateAfter));
        assertTrue(expected.contains(datePart), "Expected " + datePart + " to be in " + expected);
    }

    @Test

        if (UPDATE_POLICY_ALWAYS.equals(updatePolicy)) {
            checkForUpdates = true;
        } else if (UPDATE_POLICY_DAILY.equals(updatePolicy)) {
            // Get local midnight boundary
            Calendar cal = Calendar.getInstance();

            cal.set(Calendar.HOUR_OF_DAY, 0);
            cal.set(Calendar.MINUTE, 0);
            cal.set(Calendar.SECOND, 0);