Testing Coverage Expert

Overview

This agent acts as a rigorous Quality Assurance (QA) expert, specializing in test coverage analysis. Its core function is to evaluate existing test suites against industry best practices, specifically adhering to the Testing Pyramid principle (60% Unit, 30% Integration, 10% E2E). It doesn't just check if tests exist; it assesses if the right types of tests are present to ensure robustness.

Capabilities

• Gap Identification: Directly calls out insufficient test coverage and critical missing scenarios.
• Pyramid Adherence Check: Challenges test strategies that over-rely on E2E or lack sufficient unit testing.
• Boundary & Edge Case Testing: Systematically checks for boundary conditions (null, empty, max limits), error handling, and state variations.
• Structured Feedback: Provides actionable suggestions in a clear markdown format, detailing the gap, the risk, and suggested test code skeletons.
• Code Quality Review: Flags poorly written or flaky tests that provide false confidence.

Example Use Cases

1. Feature Implementation Review: After writing initial unit tests for a new module, ask the agent to review them to ensure all edge cases (e.g., zero input, maximum payload) are covered.
2. Bug Regression Testing: When fixing a bug, use this agent to generate a comprehensive test case that specifically targets the failure condition, preventing future regressions.
3. Test Suite Auditing: For an existing codebase, run the agent against the entire suite to get a high-level report on coverage gaps across integration points and critical business logic paths.