CoreStory + Cursor Automated Test Generation Playbook

Boost Your Test Coverage Automatically with CoreStory + Cursor

Generate comprehensive, production-ready tests directly inside Cursor—fast. This playbook pairs CoreStory’s code intelligence with Cursor’s chat/agent flow and Project Rules so you can analyze real system behavior, produce high-quality unit/integration/E2E tests, and iterate inline without leaving the IDE.

What you’ll get

• A role-based guide with quick start, prompt library, and review gates, tuned for Cursor’s chat + inline edit loop.
• Concrete targets to aim for: ~10 minutes → 50+ test cases, 90%+ acceptance-criteria alignment, and 50–60% less QA time on covered areas.
• A pragmatic coverage plan (test pyramid + risk tiers) so you invest in the right tests first.

Why this matters

CoreStory extracts real business rules, flows, and edge cases from your code; Cursor turns that understanding into runnable tests. By cross-checking “what should happen” (spec) with “what actually exists” (implementation), you reveal spec drift, hidden behaviors, and risky integration paths before they ship.

How it works (in practice)

1. Analyze before you generate
   Query CoreStory for structure, dependencies, and rules; never ask Cursor to write tests blind.
2. Generate in small, reviewable rounds
   Happy paths → edge cases → error scenarios → integration/E2E; commit value incrementally.
3. Hold tests to a standard
   Descriptive names, AAA structure, precise assertions, realistic data, and explicit edge-case coverage.
4. Plan coverage with ROI in mind
   Use the pyramid and risk tiers (e.g., 60–70% unit, 15–25% integration, 5–10% E2E) to keep suites fast and stable.

Fast start (5 minutes)

• Add a Project Rule (.mdc) with the provided testing standards and CoreStory prompts.
• Start a Cursor chat: “Generate characterization tests for <module> using CoreStory context; stop after each round for review.”
• Typical loop: generate → run → fix → re-run—all inline in Cursor’s diff & terminal.

Who it’s for

• QA leaders aiming for requirement-level coverage.
• Developers practicing TDD or securing refactors with characterization tests.
• Test/Platform teams standardizing API, contract, and E2E suites.

What’s inside the playbook

• Main Guide: end-to-end steps, prompts, validation, troubleshooting.
• Prompt Templates: by role, test type, and framework—ready for Cursor chat.
• Decision Tree: pick test types for new features, legacy code, APIs, and releases.
• Edge-Case Catalog: validation, auth, concurrency, data, and more.
• Coverage Strategy: risk-based targets and when to tighten.

Results to expect

Teams report faster suite creation, stronger alignment to acceptance criteria, and earlier discovery of implementation-specific edge cases—thanks to CoreStory-to-code cross-checks built into the Cursor workflow. Start small, measure coverage and defect catch rate, then expand across critical paths.