/**
* @todo needs docblock
*/
function bu_navigation_gather_childsections($parent_id, $sections, $max_depth = 0, $current_depth = 1)
{
$child_sections = array();
if (array_key_exists($parent_id, $sections) && count($sections[$parent_id]) > 0) {
foreach ($sections[$parent_id] as $child_id) {
if (array_key_exists($child_id, $sections) && count($sections[$child_id]) > 0) {
array_push($child_sections, $child_id);
if ($max_depth == 0 || $current_depth < $max_depth) {
$child_sections = array_merge($child_sections, bu_navigation_gather_childsections($child_id, $sections, $max_depth, $current_depth + 1));
}
}
}
}
return $child_sections;
}
/**
* Covers bu_navigation_gather_childsections()
*/
public function test_bu_navigation_gather_childsections()
{
$all_sections = bu_navigation_load_sections();
$parent = $this->posts['parent'];
$child = $this->posts['child'];
$grandchild_one = $this->posts['grandchild_one'];
$good_childsections = false;
// $parent should return child and grandchild_one as the only sections
$child_sections = bu_navigation_gather_childsections($parent, $all_sections['sections']);
if (count($child_sections) == 2 and $child_sections[0] == $child and $child_sections[1] == $grandchild_one) {
$good_childsections = true;
}
$this->assertTrue($good_childsections);
// Test Depth Functionality
$depth_one = bu_navigation_gather_childsections($parent, $all_sections['sections'], 1);
$depth_two = bu_navigation_gather_childsections($parent, $all_sections['sections'], 2);
// Expected results
$depth_one_exp = array($child);
$depth_two_exp = array($child, $grandchild_one);
// Test actual and expected are equal
$this->assertEquals($depth_one, $depth_one_exp);
$this->assertEquals($depth_two, $depth_two_exp);
}
