function testGetParents()
{
$menu = new OA_Admin_Menu();
$sections = $this->generateSections(20, 1);
//build hierarchy
$menu->add($sections[0]);
$parentId = $sections[0]->getId();
for ($i = 1; $i < count($sections); $i++) {
$menu->addTo($parentId, $sections[$i]);
$parentId = $sections[$i]->getId();
}
//get parent of a non existent section
$parents = $menu->getParentSections("some-nonexistent-section-id");
$this->assertNotNull($parents);
$this->assertEqual(0, count($parents));
//get parent of first level section (should be null)
$parents = $menu->getParentSections($sections[0]->getId());
$this->assertNotNull($parents);
$this->assertEqual(0, count($parents));
//get other parents
for ($i = 1; $i < count($sections); $i++) {
$parents = null;
$parents = $menu->getParentSections($sections[$i]->getId());
$this->assertNotNull($parents);
$this->assertEqual($i, count($parents));
$expectedParents = array_slice($sections, 0, $i);
$this->assertSectionListsEqual($expectedParents, $parents);
}
}