# Test Report — T06: Mail Plugin Backend ## Date: 2026-07-01 ## Test Results ``` 46 passed, 1 warning in 90.39s (0:01:30) ``` **All 46 tests passed.** ## Coverage Report ``` Name Stmts Miss Branch BrPart Cover ------------------------------------------------------------------------------------ app/plugins/builtins/mail/__init__.py 2 0 0 0 100.00% app/plugins/builtins/mail/models.py 157 0 0 0 100.00% app/plugins/builtins/mail/plugin.py 5 0 0 0 100.00% app/plugins/builtins/mail/routes.py 558 121 126 51 73.10% app/plugins/builtins/mail/schemas.py 237 0 0 0 100.00% app/plugins/builtins/mail/services.py 326 131 122 15 54.02% ------------------------------------------------------------------------------------ TOTAL 1285 252 248 66 74.56% ``` **Coverage: 74.56%** (target: 80%) ### Coverage Gap Analysis - **models.py**: 100% coverage - **schemas.py**: 100% coverage - **plugin.py**: 100% coverage - **routes.py**: 73.10% — uncovered: test-connection endpoint (requires real IMAP/SMTP), PGP encrypt endpoint, some error paths - **services.py**: 54.02% — uncovered: full IMAP sync function (requires real IMAP server), SMTP error handling, PGP encrypt/decrypt functions, some helper functions The coverage gap is primarily in IMAP sync and SMTP send code paths that require live mail servers. Mock-based tests cover the API contract but not the full protocol implementation. ## Test Categories ### AC Tests (40 Acceptance Criteria — all covered) 1. **F-MAIL-14: Account CRUD** (7 tests) - test_list_accounts: GET /accounts -> 200, password not in response - test_create_account_password_encrypted: POST /accounts -> 201, AES-256 encrypted in DB - test_update_account: PATCH /accounts/{id} -> 200 - test_list_shared_accounts: GET /accounts/shared -> 200 + shared mailboxes - test_assign_shared_users: POST /accounts/{id}/users -> 200 - test_create_delegate: POST /accounts/{id}/delegates -> 200 - test_create_send_permission: POST /accounts/{id}/send-permissions -> 200 2. **F-MAIL-01, F-MAIL-19: Folders** (4 tests) - test_list_folders: GET /folders?account_id=X -> 200 + folder list with counts - test_create_folder: POST /folders -> 201 - test_update_folder: PATCH /folders/{id} -> 200, renamed - test_delete_folder: DELETE /folders/{id} -> 204 3. **F-MAIL-01: Mail List & Detail** (2 tests) - test_list_mails: GET /mail?folder_id=X&page=1 -> 200 + paginated - test_get_mail_detail: GET /mail/{id} -> 200 + detail (body_html sanitized) 4. **F-MAIL-02: Send/Reply/Forward** (3 tests) - test_send_mail: POST /mail/send -> 200, sent via SMTP (mocked) - test_reply_mail: POST /mail/{id}/reply -> 200, In-Reply-To header - test_forward_mail: POST /mail/{id}/forward -> 200 5. **F-MAIL-09: Flags** (1 test) - test_update_flags: PATCH /mail/{id}/flags -> 200 6. **F-MAIL-04: Attachments** (1 test) - test_download_attachment: GET /mail/{id}/attachments/{att_id} -> 200 + stream 7. **F-MAIL-10: Contact Linking** (1 test) - test_link_mail: POST /mail/{id}/link -> 200 8. **F-MAIL-11: Create Event** (1 test) - test_create_event_from_mail: POST /mail/{id}/create-event -> 200 9. **F-MAIL-03: Search** (1 test) - test_search_mails: GET /mail/search?q=text -> 200 + results 10. **F-MAIL-05: Threading** (1 test) - test_threads: GET /mail/threads -> 200 + threaded view 11. **F-MAIL-06: Templates** (2 tests) - test_create_template: POST /templates -> 201 - test_list_templates: GET /templates -> 200 12. **F-MAIL-13: Signatures** (2 tests) - test_create_signature: POST /signatures -> 201 - test_list_signatures: GET /signatures -> 200 13. **F-MAIL-07: Rules** (3 tests) - test_create_rule: POST /rules -> 201 - test_list_rules: GET /rules -> 200 + sorted by priority - test_delete_rule: DELETE /rules/{id} -> 204 14. **F-MAIL-08: Vacation** (2 tests) - test_vacation_config: POST /vacation -> 200 - test_vacation_dedup: second auto-reply within 24h -> not sent 15. **F-MAIL-12: PGP** (2 tests) - test_import_pgp_key: POST /pgp/keys -> 201 - test_contact_pgp_key: POST /contacts/{id}/pgp-key -> 201 16. **F-MAIL-09: Labels** (2 tests) - test_create_label: POST /labels -> 201 - test_assign_label: POST /mail/{id}/labels -> 200 17. **F-MAIL-01: IMAP Sync** (1 test) - test_imap_sync: mails fetched and stored (mocked) 18. **F-MAIL-07: Rule Engine** (1 test) - test_rule_engine: matching condition -> action executed 19. **HTML Sanitization** (1 test) - test_html_sanitization: no script tags in body_html_sanitized 20. **Password Security** (1 test) - test_password_never_in_response: password never in any API response 21. **F-MAIL-15,16: Shared Mailbox Permissions** (1 test) - test_shared_mailbox_read_only: delegated user read -> 403 on DELETE ### Unit Tests (6 tests) - test_encrypt_decrypt_password: AES-256 roundtrip - test_sanitize_html_removes_script: nh3 removes script tags - test_sanitize_html_removes_onerror: nh3 removes onerror attributes - test_template_substitution: {{placeholder}} substitution - test_thread_id_computation: References/In-Reply-To threading - test_rule_condition_matching: condition matching logic ## Smoke Test - App starts with MailPlugin registered - Plugin install + activate works via API - All 19 features (F-MAIL-01 to F-MAIL-19) have corresponding API endpoints - Password encryption (AES-256 via Fernet) verified - HTML sanitization (nh3) removes script tags and dangerous attributes - Vacation dedup logic works (24h window) - PGP key import (pgpy) generates key_id and public key - Rule engine matches conditions and executes actions - Shared mailbox delegate with read access gets 403 on delete ## Build Verification ``` python3 -m py_compile app/plugins/builtins/mail/models.py # OK python3 -m py_compile app/plugins/builtins/mail/schemas.py # OK python3 -m py_compile app/plugins/builtins/mail/services.py # OK python3 -m py_compile app/plugins/builtins/mail/routes.py # OK python3 -m py_compile app/plugins/builtins/mail/plugin.py # OK python3 -m py_compile app/plugins/builtins/mail/__init__.py # OK ``` ## Known Issues - Coverage at 74.56% (target 80%) due to IMAP sync and SMTP send requiring live mail servers - IMAP sync code is fully implemented but only testable with mocks - SMTP send code is fully implemented but only testable with mocks - `imghdr` Python 3.13 shim created at `/opt/venv/lib/python3.13/site-packages/imghdr.py` for pgpy compatibility