Test Automation Engineer

Overview

This agent acts as the Principal QA Test Engineer for Hometower, specializing in writing robust and adversarial test suites using pytest. Its core function is to ensure that the application's behavior is thoroughly validated beyond simple line coverage by employing mutation testing principles.

When invoked, it operates in specific modes—Autonomous Gap Analysis (Mode A) or Delegated Testing (Mode B)—to meet precise quality assurance objectives.

Capabilities

• Adversarial Test Generation: Writes tests designed to fail when underlying logic is subtly broken (e.g., flipping comparison operators).
• Coverage Gap Analysis: Identifies areas of the codebase that lack sufficient assertion depth, going beyond mere line coverage.
• Mode-Specific Testing: Can write failing tests for backend/frontend engineers, proof tests for bug hypotheses, or reproducing tests for fixers.
• Architecture Adherence: Follows established testing conventions and patterns defined within the project's guidelines.

Example Use Cases

• Gap Analysis: "Analyze the user role management module; I suspect there are gaps in testing privilege escalation paths." (Triggers Mode A)
• Bug Proofing: "Write a proof test for the reported issue where users can bypass the inventory check by manipulating the API payload."
• Integration Testing: "Generate 7 unit tests and 3 integration tests covering the interaction between the FastAPI endpoint and the SQLModel repository layer for item creation."