function ScanDirectoryTest::testOptionCallback

Check that the callback function is called correctly.

@covers ::scanDirectory

File

core/tests/Drupal/KernelTests/Core/File/ScanDirectoryTest.php, line 80

Class

ScanDirectoryTest

Tests <a href="/api/drupal/core%21lib%21Drupal%21Core%21File%21FileSystem.php/class/FileSystem/11.x" title="Provides helpers to operate on files and stream wrappers." class="local">\Drupal\Core\File\FileSystem</a>::scanDirectory.

Namespace

Code

public function testOptionCallback() : void {
    // When nothing is matched nothing should be passed to the callback.
    $all_files = $this->fileSystem
        ->scanDirectory($this->path, '/^NON-EXISTING-FILENAME/', [
        'callback' => 'file_test_file_scan_callback',
    ]);
    $this->assertCount(0, $all_files, 'No files were found.');
    $results = file_test_file_scan_callback();
    file_test_file_scan_callback_reset();
    $this->assertCount(0, $results, 'No files were passed to the callback.');
    // Grab a listing of all the JavaScript files and check that they're
    // passed to the callback.
    $all_files = $this->fileSystem
        ->scanDirectory($this->path, '/^javascript-/', [
        'callback' => 'file_test_file_scan_callback',
    ]);
    $this->assertCount(2, $all_files, 'Found two, expected javascript files.');
    $results = file_test_file_scan_callback();
    file_test_file_scan_callback_reset();
    $this->assertCount(2, $results, 'Files were passed to the callback.');
}