public function testInsertAsPrevSiblingOfExistingObject()
{
Table9Query::create()->deleteAll();
$t = new Table9();
$t->makeRoot();
$t->save();
$t1 = new Table9();
$t1->insertAsFirstChildOf($t);
$t1->save();
$this->assertEquals(1, $t->getLeftValue());
$this->assertEquals(4, $t->getRightValue());
$this->assertEquals(0, $t->getLevel());
$this->assertEquals(2, $t1->getLeftValue());
$this->assertEquals(3, $t1->getRightValue());
$this->assertEquals(1, $t1->getLevel());
$t2 = new Table9();
$t2->save();
$t2->insertAsPrevSiblingOf($t1);
$this->assertEquals(2, $t2->getLeftValue());
$this->assertEquals(3, $t2->getRightValue());
$this->assertEquals(1, $t2->getLevel());
$t2->save();
$this->assertEquals(1, $t->getLeftValue());
$this->assertEquals(6, $t->getRightValue());
$this->assertEquals(0, $t->getLevel());
$this->assertEquals(4, $t1->getLeftValue());
$this->assertEquals(5, $t1->getRightValue());
$this->assertEquals(1, $t1->getLevel());
$this->assertEquals(2, $t2->getLeftValue());
$this->assertEquals(3, $t2->getRightValue());
$this->assertEquals(1, $t2->getLevel());
}