/**
* @dataProvider provider_samplePlusWeeksSymmetry
* @group long
*/
public function test_plusWeeks_symmetry(LocalDateTime $reference)
{
for ($weeks = 0; $weeks < 365 * 8; $weeks++) {
$t = $reference->plusWeeks($weeks)->plusWeeks(-$weeks);
$this->assertEquals($t, $reference);
$t = $reference->plusWeeks(-$weeks)->plusWeeks($weeks);
$this->assertEquals($t, $reference);
}
}
/**
* Returns a copy of this OffsetDateTime with the specified number of weeks added.
* <p>
* This method adds the specified amount in weeks to the days field incrementing
* the month and year fields as necessary to ensure the result remains valid.
* The result is only invalid if the maximum/minimum year is exceeded.
* <p>
* For example, 2008-12-31 plus one week would result in 2009-01-07.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @param int $weeks the weeks to add, may be negative
* @return OffsetDateTime an {@code OffsetDateTime} based on this date-time with the weeks added, not null
* @throws DateTimeException if the result exceeds the supported date range
*/
public function plusWeeks($weeks)
{
return $this->_with($this->dateTime->plusWeeks($weeks), $this->offset);
}
/**
* Returns a copy of this {@code ZonedDateTime} with the specified number of weeks added.
* <p>
* This operates on the local time-line,
* {@link LocalDateTime#plusWeeks(long) adding weeks} to the local date-time.
* This is then converted back to a {@code ZonedDateTime}, using the zone ID
* to obtain the offset.
* <p>
* When converting back to {@code ZonedDateTime}, if the local date-time is in an overlap,
* then the offset will be retained if possible, otherwise the earlier offset will be used.
* If in a gap, the local date-time will be adjusted forward by the length of the gap.
* <p>
* This instance is immutable and unaffected by this method call.
*
* @param int $weeks the weeks to add, may be negative
* @return ZonedDateTime a {@code ZonedDateTime} based on this date-time with the weeks added, not null
* @throws DateTimeException if the result exceeds the supported date range
*/
public function plusWeeks($weeks)
{
return $this->resolveLocal($this->dateTime->plusWeeks($weeks));
}
