# Coverage report and analysis

Command: `python -m pytest --cov=banking --cov-branch --cov-report=term-missing --cov-report=html`

Verified run: **17 passed**. `banking.py`: 32 statements, 0 missed; 16 branches, 0 partial; total coverage **100%**.

No conditional branches in `banking.py` remain uncovered. The tests exercise valid operations, boundary values, invalid amounts, insufficient funds, self-transfer, and invalid constructor inputs. The notification is patched at `banking.send_notification`, so the tests verify its invocation without calling the real external dependency. `notification_service.py` is intentionally excluded from `--cov=banking` because this is a unit test of the banking module, not an integration test of the external service.

Coverage measures execution, not proof of correctness; production banking would require additional integration, persistence, concurrency, and transaction-failure tests.