public function testRetrieveRoot()
{
$this->assertTrue(method_exists('Table9Peer', 'retrieveRoot'), 'nested_set adds a retrieveRoot() method');
Table9Peer::doDeleteAll();
$this->assertNull(Table9Peer::retrieveRoot(), 'retrieveRoot() returns null as long as no root node is defined');
$t1 = new Table9();
$t1->setLeftValue(123);
$t1->setRightValue(456);
$t1->save();
$this->assertNull(Table9Peer::retrieveRoot(), 'retrieveRoot() returns null as long as no root node is defined');
$t2 = new Table9();
$t2->setLeftValue(1);
$t2->setRightValue(2);
$t2->save();
$this->assertEquals(Table9Peer::retrieveRoot(), $t2, 'retrieveRoot() retrieves the root node');
}
public function testFindRoot()
{
$this->assertTrue(method_exists('Table9Query', 'findRoot'), 'nested_set adds a findRoot() method');
Table9Query::create()->deleteAll();
$this->assertNull(Table9Query::create()->findRoot(), 'findRoot() returns null as long as no root node is defined');
$t1 = new Table9();
$t1->setLeftValue(123);
$t1->setRightValue(456);
$t1->save();
$this->assertNull(Table9Query::create()->findRoot(), 'findRoot() returns null as long as no root node is defined');
$t2 = new Table9();
$t2->setLeftValue(1);
$t2->setRightValue(2);
$t2->save();
$this->assertEquals(Table9Query::create()->findRoot(), $t2, 'findRoot() retrieves the root node');
}