code/modules/unit_tests/~nova/custom_sprites/persistence.dm 
| /datum/json_savefile/custom_sprites/counting_test | A sidecar store that counts its save attempts. |
|---|---|
| /datum/json_savefile/custom_sprites/counting_test/failing | A counting sidecar store that fails a chosen write, truncating the file or reporting an error. |
| /proc/custom_sprite_test_remove_sidecar | Deletes a sidecar's primary, backup and staging files. |
| /datum/custom_sprite_test_files | Removes a test's sidecar files as the test starts, and again when the framework deletes it after any assertion. |