testing-standards

testing-standards is a cursor rule for Cursor from jim-schilling/splurge-ai-rules. It costs 4 tokens per session (477 once invoked), scanned A, original, MIT.

A set of testing rules based on TDD and BDD, approaches that define and check expected behavior before or alongside implementation.

In plain words
What is it for?
It guides unit and integration tests, coverage checks with pytest tools, test isolation, API-focused validation, and the use of real data or objects where appropriate.
Why use it?
It encourages reliable, repeatable tests of public behavior while limiting fragile checks of internal details and unnecessary mocks.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/jim-schilling/splurge-ai-rules/testing-standards
Clone the repo
git clone --depth 1 https://github.com/jim-schilling/splurge-ai-rules

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for testing-standards

README.md
[![agentmods](https://agentmods.dev/badge/rules/jim-schilling/splurge-ai-rules/testing-standards.svg)](https://agentmods.dev/rules/jim-schilling/splurge-ai-rules/testing-standards)
Your own site
<a href="https://agentmods.dev/rules/jim-schilling/splurge-ai-rules/testing-standards"><img src="https://agentmods.dev/badge/rules/jim-schilling/splurge-ai-rules/testing-standards.svg" alt="Measured on agentmods" height="20"></a>
Per session 4 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 477 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00004 $0.00477
Opus 5 $0.00002 $0.00238
Sonnet 5 $0.00001 $0.00095
Haiku 4.5 $0.00000 $0.00048

Measured 5d ago against content hash 27ee85143aad, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

testing-standards scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/rules/testing-standards.mdc · 36 lines

What it actually says

  • Follow BDD/TDD (Behavior/Test Driven Development) practices.
  • Validate behavior of public APIs only.
  • Prefer validation using actual data, interfaces, and objects
  • Minimize use of mocks, except where appropriate.
  • Mock at architectural boundaries (external systems, I/O) but prefer real objects/data for internal logic.
  • Ensure tests are isolated and do not depend on external systems or state.
  • Each code module must have at least one corresponding test module.
  • Unit test shall target 85% code coverage for all public interfaces and methods.
  • Combination of unit tests and integration tests shall target 95% code coverage for all public interfaces and methods.
  • Prefer tests that are independent, repeatable, and deterministic.
  • Prefer shared helpers for common logic.
  • Avoid validation of implementation details and private APIs.
  • Prefer validation of patterns of text, and avoid exact matching of content and formatting.
  • Prefer pytest; pytest-xdist may be used optionally for parallel runs (e.g., -n 4) when desired.
  • Prefer pytest-cov for code coverage with parameters --cov=your_package --cov-report=term-missing.
  • Prefer pytest-mock for mocking and patching, where appropriate.
  • Run pytest with code coverage when asked by user, otherwise skip.
  • Place unit tests in tests/unit/ and integration tests in tests/integration/, e2e tests in tests/e2e/, and performance tests in tests/performance/.
  • Place test data in tests/data.
  • For Python, prefer pure pytest function style tests.
  • For Python, prefer use of tmp_path and tmp_path_factory fixtures for temporary files and directories.
  • Name test methods as test_[condition]_[expectedResult].
  • Each test method should ideally test a single condition and expected result.
  • Use fixtures for common setup and teardown logic.
  • Use parameterized tests for testing multiple input scenarios.
  • Use assertions to validate expected outcomes.
  • Prefer tests/unit/* to run to completion within 60 seconds.
  • Prefer tests/integration/* to run to completion within 60 seconds.
  • Prefer tests/e2e/* to run to run to completion within 60 seconds.
  • Prefer tests/performance/* to run to completion within 60 seconds.
  • Prefer entire test suite to run to completion within 120 seconds.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 36 lines · 4 tokens per session scan A 27ee85143aad

Subscribe to this mod's changes

testing-standards is a cursor rule published in the GitHub repository jim-schilling/splurge-ai-rules (3 stars, last pushed 11mo ago), licensed MIT. It adds 4 tokens to every session and 477 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.