public function ValidatorTest::testFileValidateImageResolution in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/file/tests/src/Kernel/ValidatorTest.php \Drupal\Tests\file\Kernel\ValidatorTest::testFileValidateImageResolution()

This ensures the resolution of a specific file is within bounds.

The image will be resized if it's too large.

File

core/modules/file/tests/src/Kernel/ValidatorTest.php, line 73

Class

ValidatorTest

Tests the functions used to validate uploaded files.

Namespace

Drupal\Tests\file\Kernel

Code

public function testFileValidateImageResolution() {

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

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

  // Maximum size.
  if ($this->container
    ->get('image.factory')
    ->getToolkitId()) {

    // Copy the image so that the original doesn't get resized.
    copy('core/misc/druplicon.png', 'temporary://druplicon.png');
    $this->image
      ->setFileUri('temporary://druplicon.png');
    $errors = file_validate_image_resolution($this->image, '10x5');
    $this
      ->assertCount(0, $errors, 'No errors should be reported when an oversized image can be scaled down.');
    $image = $this->container
      ->get('image.factory')
      ->get($this->image
      ->getFileUri());
    $this
      ->assertTrue($image
      ->getWidth() <= 10, 'Image scaled to correct width.', 'File');
    $this
      ->assertTrue($image
      ->getHeight() <= 5, 'Image scaled to correct height.', 'File');

    // Once again, now with negative width and height to force an error.
    copy('core/misc/druplicon.png', 'temporary://druplicon.png');
    $this->image
      ->setFileUri('temporary://druplicon.png');
    $errors = file_validate_image_resolution($this->image, '-10x-5');
    $this
      ->assertCount(1, $errors, 'An error reported for an oversized image that can not be scaled down.');
    \Drupal::service('file_system')
      ->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
      ->assertCount(1, $errors, 'Oversize images that cannot be scaled get an error.');
  }
}