test_apply_archives_and_preserves_history (__main__.Tests.test_apply_archives_and_preserves_history) ... ok
test_foreign_key_delete_order (__main__.Tests.test_foreign_key_delete_order) ... ok
test_modified_ledger_blocks_before_deletion (__main__.Tests.test_modified_ledger_blocks_before_deletion) ... ok
test_preview_unchanged (__main__.Tests.test_preview_unchanged) ... ok
test_research_history_retained (__main__.Tests.test_research_history_retained) ... ok
test_unknown_rows_block (__main__.Tests.test_unknown_rows_block) ... ok

----------------------------------------------------------------------
Ran 6 tests in 0.012s

OK