public function testRetrieveRoots()
{
$this->assertTrue(method_exists('Table10Peer', 'retrieveRoots'), 'nested_set adds a retrieveRoots() method for trees that use scope');
$this->assertFalse(method_exists('Table9Peer', 'retrieveRoots'), 'nested_set does not add a retrieveRoots() method for trees that don\'t use scope');
list($t1, $t2, $t3, $t4, $t5, $t6, $t7, $t8, $t9, $t10) = $this->initTreeWithScope();
/* Tree used for tests
Scope 1
t1
| \
t2 t3
| \
t4 t5
| \
t6 t7
Scope 2
t8
| \
t9 t10
*/
$this->assertEquals(array($t1, $t8), Table10Peer::retrieveRoots(), 'retrieveRoots() returns the tree roots');
$c = new Criteria();
$c->add(Table10Peer::TITLE, 't1');
$this->assertEquals(array($t1), Table10Peer::retrieveRoots($c), 'retrieveRoots() accepts a Criteria as first parameter');
}
