function MimeTypeTest::testFileMimeTypeDetection

Tests mapping of mimetypes from filenames.

File

core/tests/Drupal/KernelTests/Core/File/MimeTypeTest.php, line 24

Class

MimeTypeTest

Tests filename mimetype detection.

Namespace

Code

public function testFileMimeTypeDetection() : void {
  $prefixes = [
    'public://',
    'private://',
    'temporary://',
    'dummy-remote://',
  ];
  $test_case = [
    'test.jar' => 'application/java-archive',
    'test.jpeg' => 'image/jpeg',
    'test.JPEG' => 'image/jpeg',
    'test.jpg' => 'image/jpeg',
    'test.jar.jpg' => 'image/jpeg',
    'test.jpg.jar' => 'application/java-archive',
    'test.pcf.Z' => 'application/x-font',
    'test.garply.waldo' => 'application/x-garply-waldo',
    'pcf.z' => 'application/x-compress',
    'jar' => 'application/octet-stream',
    'garply.waldo' => 'application/octet-stream',
    'some.junk' => 'application/octet-stream',
    'foo.file_test_1' => 'made_up/file_test_1',
    'foo.file_test_2' => 'made_up/file_test_2',
    'foo.doc' => 'made_up/doc',
    'test.ogg' => 'audio/ogg',
    'foobar.z' => 'application/x-compress',
    'foobar.tar' => 'application/x-tar',
    'foobar.tar.z' => 'application/x-tarz',
    'foobar.0.zip' => 'application/zip',
    'foobar..zip' => 'application/zip',
  ];
  $guesser = $this->container
    ->get('file.mime_type.guesser');
  // Test using default mappings.
  foreach ($test_case as $input => $expected) {
    // Test stream [URI].
    foreach ($prefixes as $prefix) {
      $output = $guesser->guessMimeType($prefix . $input);
      $this->assertSame($expected, $output);
    }
    // Test normal path equivalent
    $output = $guesser->guessMimeType($input);
    $this->assertSame($expected, $output);
  }
  // Now test the extension guesser by passing in a custom mapping.
  $mapping = [
    'mimetypes' => [
      0 => 'application/java-archive',
      1 => 'image/jpeg',
    ],
    'extensions' => [
      'jar' => 0,
      'jpg' => 1,
    ],
  ];
  $test_case = [
    'test.jar' => 'application/java-archive',
    'test.jpeg' => NULL,
    'test.jpg' => 'image/jpeg',
    'test.jar.jpg' => 'image/jpeg',
    'test.jpg.jar' => 'application/java-archive',
    'test.pcf.z' => NULL,
    'test.garply.waldo' => NULL,
    'pcf.z' => NULL,
    'jar' => NULL,
    'garply.waldo' => NULL,
    'some.junk' => NULL,
    'foo.file_test_1' => NULL,
    'foo.file_test_2' => NULL,
    'foo.doc' => NULL,
    'test.ogg' => NULL,
    'foobar.z' => NULL,
    'foobar.tar' => NULL,
    'foobar.tar.z' => NULL,
  ];
  $extension_guesser = $this->container
    ->get('file.mime_type.guesser.extension');
  $extension_guesser->setMapping($mapping);
  foreach ($test_case as $input => $expected) {
    $output = $extension_guesser->guessMimeType($input);
    $this->assertSame($expected, $output);
  }
}