public function testGetStartOfPreviousDay()
{
$subject = new LocalDate('2016-01-02T00:00:00', 'Europe/Berlin');
$this->assertEquals(new LocalDate('2016-01-01', 'Europe/Berlin'), $subject->getStartOfPreviousDay());
$subject = new LocalDate('2016-01-02T01:00:00', 'Europe/Berlin');
$this->assertEquals(new LocalDate('2016-01-01', 'Europe/Berlin'), $subject->getStartOfPreviousDay());
$subject = new LocalDate('2016-01-02T12:00:00', 'Europe/Berlin');
$this->assertEquals(new LocalDate('2016-01-01', 'Europe/Berlin'), $subject->getStartOfPreviousDay());
$subject = new LocalDate('2016-01-02T23:00:00', 'Europe/Berlin');
$this->assertEquals(new LocalDate('2016-01-01', 'Europe/Berlin'), $subject->getStartOfPreviousDay());
$subject = new LocalDate('2016-01-02T24:00:00', 'Europe/Berlin');
$this->assertEquals(new LocalDate('2016-01-02', 'Europe/Berlin'), $subject->getStartOfPreviousDay());
}