testing-philosophy

testing-philosophy is a cursor rule for Cursor from prassanna-ravishankar/clearml-mcp. It costs 0 tokens per session (401 once invoked), scanned A, original, MIT.

A testing rule that uses behavioral, or black-box, tests: tests check what a public function does from the outside rather than how it is implemented inside.

In plain words
What is it for?
Use it when adding tests for public functions, inputs, outputs, errors, edge cases, and realistic data scenarios.
Why use it?
It keeps tests tied to the user-facing contract, so internal refactoring is less likely to break them unnecessarily.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Use it when adding tests for public functions, inputs, outputs, errors, edge cases, and realistic data scenarios.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/prassanna-ravishankar/clearml-mcp/testing-philosophy
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.

Clone the repo
git clone --depth 1 https://github.com/prassanna-ravishankar/clearml-mcp

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-philosophy

README.md
[![agentmods](https://agentmods.dev/badge/rules/prassanna-ravishankar/clearml-mcp/testing-philosophy/github.svg)](https://agentmods.dev/rules/prassanna-ravishankar/clearml-mcp/testing-philosophy)
Your own site
<a href="https://agentmods.dev/rules/prassanna-ravishankar/clearml-mcp/testing-philosophy"><img src="https://agentmods.dev/badge/rules/prassanna-ravishankar/clearml-mcp/testing-philosophy/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for testing-philosophy

Your own site · 80×15
<a href="https://agentmods.dev/rules/prassanna-ravishankar/clearml-mcp/testing-philosophy"><img src="https://agentmods.dev/badge/rules/prassanna-ravishankar/clearml-mcp/testing-philosophy.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 401 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00000 $0.00401
Opus 5 $0.00000 $0.00200
Sonnet 5 $0.00000 $0.00080
Haiku 4.5 $0.00000 $0.00040

Measured 9d ago against content hash 93bf63a172f8, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

testing-philosophy 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 9d 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-philosophy.mdc · 44 lines

What it actually says

Testing Philosophy: Behavioral/Black-Box Testing

Core Principle

This project uses behavioral (black-box) testing instead of white-box testing. Tests focus on public API behavior and expected outcomes, not internal implementation details.

Testing Approach

✅ DO: Test Public API Behavior

  • Test all public functions and their expected behaviors
  • Focus on input/output relationships
  • Test error conditions and edge cases
  • Verify the complete user-facing contract
  • Test with realistic data scenarios

❌ DON'T: Test Internal Implementation

  • Avoid testing private methods directly
  • Don't test internal data structures
  • Don't mock internal implementation details
  • Don't test "how" the code works, test "what" it does

Coverage Standards

  • Target: 65%+ coverage (pyproject.toml fail_under = 65)
  • Current: 69% coverage achieved through comprehensive behavioral tests
  • Coverage should come from testing all public API paths, not from testing internals

Test Structure

Tests are organized in tests/test_clearml_mcp.py with:

  • Comprehensive mocking of external dependencies (ClearML API)
  • Behavioral verification of all public functions
  • Edge case and error condition testing
  • Real-world usage scenario simulation

Key Testing Files

This approach ensures tests remain stable when refactoring internal implementations while maintaining comprehensive verification of the public API contract.

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. 9d ago First seen · 44 lines · 0 tokens per session scan A 93bf63a172f8

Subscribe to this mod's changes

testing-philosophy is a cursor rule published in the GitHub repository prassanna-ravishankar/clearml-mcp (16 stars, last pushed 2mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 401 tokens. 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 2026-08-30.