7 calls to file_save_data()

SaveDataTest::testExistingError in drupal/core/modules/file/lib/Drupal/file/Tests/SaveDataTest.php
Test that file_save_data() fails overwriting an existing file.
SaveDataTest::testExistingRename in drupal/core/modules/file/lib/Drupal/file/Tests/SaveDataTest.php
Test file_save_data() when renaming around an existing file.
SaveDataTest::testExistingReplace in drupal/core/modules/file/lib/Drupal/file/Tests/SaveDataTest.php
Test file_save_data() when replacing an existing file.
SaveDataTest::testWithFilename in drupal/core/modules/file/lib/Drupal/file/Tests/SaveDataTest.php
Test the file_save_data() function when a filename is provided.
SaveDataTest::testWithoutFilename in drupal/core/modules/file/lib/Drupal/file/Tests/SaveDataTest.php
Test the file_save_data() function when no filename is provided.
system_retrieve_file in drupal/core/modules/system/system.module
Attempts to get a file using drupal_http_request and to store it locally.
UsageTest::testTempFileCleanup in drupal/core/modules/file/lib/Drupal/file/Tests/UsageTest.php
Ensure that temporary files are removed.