public function testBarDirection()
{
$object = new Bar3D();
$this->assertEquals(Bar3D::DIRECTION_VERTICAL, $object->getBarDirection());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\Chart\\Type\\Bar3D', $object->setBarDirection(Bar3D::DIRECTION_HORIZONTAL));
$this->assertEquals(Bar3D::DIRECTION_HORIZONTAL, $object->getBarDirection());
$this->assertInstanceOf('PhpOffice\\PhpPresentation\\Shape\\Chart\\Type\\Bar3D', $object->setBarDirection(Bar3D::DIRECTION_VERTICAL));
$this->assertEquals(Bar3D::DIRECTION_VERTICAL, $object->getBarDirection());
}