# Preparations
* apply patch from D368
# Testing
Test using `Image` field of `poll` unit.
Test these cases in every possible combination (8 in total):
# case by uploader type:
* HTML4 uploader ("inp_edit_upload" block)
* HTML5 uploader ("inp_edit_swf_upload" block)
# case by file extension change upon resize via "storage_format" option:
* file extension changed
* file extension not changed
# case by storage engine:
* storage engine used (e.g. 'storage_engine' => StorageEngine::HASH)
* storage engine not used