public function CopyTest::testExistingReplace in Drupal 8

Same name and namespace in other branches

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

Test replacement when copying over a file that already exists.

File

core/modules/file/tests/src/Kernel/CopyTest.php, line 87

Class

CopyTest

Tests the file copy function.

Namespace

Drupal\Tests\file\Kernel

Code

public function testExistingReplace() {

  // Setup a file to overwrite.
  $contents = $this
    ->randomMachineName(10);
  $source = $this
    ->createFile(NULL, $contents);
  $target = $this
    ->createFile();
  $this
    ->assertDifferentFile($source, $target);

  // Clone the object so we don't have to worry about the function changing
  // our reference copy.
  $result = file_copy(clone $source, $target
    ->getFileUri(), FileSystemInterface::EXISTS_REPLACE);

  // Check the return status and that the contents changed.
  $this
    ->assertNotFalse($result, 'File copied successfully.');
  $this
    ->assertEqual($contents, file_get_contents($result
    ->getFileUri()), 'Contents of file were overwritten.');
  $this
    ->assertDifferentFile($source, $result);

  // Check that the correct hooks were called.
  $this
    ->assertFileHooksCalled([
    'load',
    'copy',
    'update',
  ]);

  // Load all the affected files to check the changes that actually made it
  // to the database.
  $loaded_source = File::load($source
    ->id());
  $loaded_target = File::load($target
    ->id());
  $loaded_result = File::load($result
    ->id());

  // Verify that the source file wasn't changed.
  $this
    ->assertFileUnchanged($source, $loaded_source);

  // Verify that what was returned is what's in the database.
  $this
    ->assertFileUnchanged($result, $loaded_result);

  // Target file was reused for the result.
  $this
    ->assertFileUnchanged($loaded_target, $loaded_result);
}