function FileValidatorTest::testFileValidateImageResolution in Drupal 7

This ensures the resolution of a specific file is within bounds. The image will be resized if it's too large.

File

modules/simpletest/tests/file.test, line 415

This provides SimpleTests for the core file handling functionality. These include FileValidateTest and FileSaveTest.

Class

FileValidatorTest

This will run tests against the file validation functions (file_validate_*).

Code

function testFileValidateImageResolution() {

  // Non-images.
  $errors = file_validate_image_resolution($this->non_image);
  $this
    ->assertEqual(count($errors), 0, 'Should not get any errors for a non-image file.', 'File');
  $errors = file_validate_image_resolution($this->non_image, '50x50', '100x100');
  $this
    ->assertEqual(count($errors), 0, 'Do not check the resolution on non files.', 'File');

  // Minimum size.
  $errors = file_validate_image_resolution($this->image);
  $this
    ->assertEqual(count($errors), 0, 'No errors for an image when there is no minimum or maximum resolution.', 'File');
  $errors = file_validate_image_resolution($this->image, 0, '200x1');
  $this
    ->assertEqual(count($errors), 1, 'Got an error for an image that was not wide enough.', 'File');
  $errors = file_validate_image_resolution($this->image, 0, '1x200');
  $this
    ->assertEqual(count($errors), 1, 'Got an error for an image that was not tall enough.', 'File');
  $errors = file_validate_image_resolution($this->image, 0, '200x200');
  $this
    ->assertEqual(count($errors), 1, 'Small images report an error.', 'File');

  // Maximum size.
  if (image_get_toolkit()) {

    // Copy the image so that the original doesn't get resized.
    copy('misc/druplicon.png', 'temporary://druplicon.png');
    $this->image->uri = 'temporary://druplicon.png';
    $errors = file_validate_image_resolution($this->image, '10x5');
    $this
      ->assertEqual(count($errors), 0, 'No errors should be reported when an oversized image can be scaled down.', 'File');
    $info = image_get_info($this->image->uri);
    $this
      ->assertTrue($info['width'] <= 10, 'Image scaled to correct width.', 'File');
    $this
      ->assertTrue($info['height'] <= 5, 'Image scaled to correct height.', 'File');
    drupal_unlink('temporary://druplicon.png');
  }
  else {

    // TODO: should check that the error is returned if no toolkit is available.
    $errors = file_validate_image_resolution($this->image, '5x10');
    $this
      ->assertEqual(count($errors), 1, 'Oversize images that cannot be scaled get an error.', 'File');
  }
}