/**
* Test aritmatic operations
*
*/
function test_intersect_union()
{
// intersection()
// union()
// 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2
// 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8
//
// A |- - - - - - - - - -|
// B |-|
// C |- - - - - - - - -|
// D |- - - -|
$timespanA = Week::startingDuration(DateAndTime::withYearMonthDay(2005, 5, 4), Duration::withDays(10));
$timespanB = Week::startingDuration(DateAndTime::withYearMonthDayHourMinuteSecondOffset(2005, 5, 10, 12, 0, 0, Duration::withHours(-4)), Duration::withDays(1));
$timespanC = Week::startingEnding(DateAndTime::withYearMonthDay(2005, 5, 8), DateAndTime::withYearMonthDay(2005, 5, 17));
$timespanD = Week::startingEnding(DateAndTime::withYearMonthDay(2005, 5, 17), DateAndTime::withYearMonthDay(2005, 5, 21));
// intersection()
$this->assertEqual($timespanA->intersection($timespanB), NULL);
$this->assertEqual($timespanA->intersection($timespanC), NULL);
$this->assertEqual($timespanA->intersection($timespanD), NULL);
// union()
$temp = Timespan::startingEnding(DateAndTime::withYearMonthDay(2005, 5, 1), DateAndTime::withYearMonthDay(2005, 5, 15));
$this->assertTrue($temp->isEqualTo($timespanA->union($timespanB)));
$temp = Timespan::startingEnding(DateAndTime::withYearMonthDay(2005, 5, 1), DateAndTime::withYearMonthDay(2005, 5, 15));
$this->assertTrue($temp->isEqualTo($timespanA->union($timespanC)));
$temp = Timespan::startingEnding(DateAndTime::withYearMonthDay(2005, 5, 1), DateAndTime::withYearMonthDay(2005, 5, 22));
$this->assertTrue($temp->isEqualTo($timespanA->union($timespanD)));
}
