function GraphTest::displayArray

Helper function to output vertices as comma-separated list.

Parameters

array $paths: An array containing a list of vertices.

bool $keys: (optional) Whether to output the keys of $paths instead of the values.

File

core/tests/Drupal/Tests/Component/Graph/GraphTest.php, line 194

Class

GraphTest

@coversDefaultClass \Drupal\Component\Graph\Graph @group Graph

Namespace

Code

protected function displayArray($paths, $keys = FALSE) : string {
    if (!empty($paths)) {
        return implode(', ', $keys ? array_keys($paths) : $paths);
    }
    else {
        return '(empty)';
    }
}