public function testAddNestedSetChildren()
{
$t0 = new Table9();
$t1 = new Table9();
$t2 = new Table9();
$t0->addNestedSetChild($t1);
$t0->addNestedSetChild($t2);
$this->assertEquals(2, $t0->countChildren(), 'addNestedSetChild() adds the object to the internal children collection');
$this->assertEquals($t0, $t1->getParent(), 'addNestedSetChild() sets the object as th parent of the parameter');
$this->assertEquals($t0, $t2->getParent(), 'addNestedSetChild() sets the object as th parent of the parameter');
}
