function SaveDataTest::testExistingError

Test that file_save_data() fails overwriting an existing file.

File

core/modules/file/tests/src/Kernel/SaveDataTest.php, line 129

Class

SaveDataTest

Tests the file_save_data() function.

Namespace

Code

public function testExistingError() {
  $contents = $this->randomMachineName(8);
  $existing = $this->createFile(NULL, $contents);
  // Check the overwrite error.
  $result = file_save_data('asdf', $existing->getFileUri(), FileSystemInterface::EXISTS_ERROR);
  $this->assertFalse($result, 'Overwriting a file fails when FileSystemInterface::EXISTS_ERROR is specified.');
  $this->assertEqual($contents, file_get_contents($existing->getFileUri()), 'Contents of existing file were unchanged.');
  // Check that no hooks were called while failing.
  $this->assertFileHooksCalled([]);
  // Ensure that the existing file wasn't overwritten.
  $this->assertFileUnchanged($existing, File::load($existing->id()));
}