create-backend-tests

create-backend-tests is a command for Cursor from codeready-toolchain/tarsy. It costs 0 tokens per session (1,327 once invoked), scanned A, original, Apache-2.0.

A command for writing and running tests for Go backend code. It covers unit tests, integration tests, end-to-end tests, coverage reports, and the race detector, which finds certain concurrency bugs.

In plain words
What is it for?
Use it to run all or selected Go tests, test concurrent code, measure coverage, and create tests for meaningful backend behavior.
Why use it?
It gives guidance for choosing useful behavior-focused tests and avoiding brittle tests that only check internal implementation details.

Command 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 commands/codeready-toolchain/tarsy/create-backend-tests
Clone the repo
git clone --depth 1 https://github.com/codeready-toolchain/tarsy

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 create-backend-tests

README.md
[![agentmods](https://agentmods.dev/badge/commands/codeready-toolchain/tarsy/create-backend-tests.svg)](https://agentmods.dev/commands/codeready-toolchain/tarsy/create-backend-tests)
Your own site
<a href="https://agentmods.dev/commands/codeready-toolchain/tarsy/create-backend-tests"><img src="https://agentmods.dev/badge/commands/codeready-toolchain/tarsy/create-backend-tests.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,327 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 $0.00000 $0.01327
Opus 5 $0.00000 $0.00664
Sonnet 5 $0.00000 $0.00265
Haiku 4.5 $0.00000 $0.00133

Measured 3d ago against content hash a13d88199219, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-backend-tests 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 3d 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/commands/create-backend-tests.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writing Tests for Go Backend

Running Tests

From Project Root

All tests:

  • make test - Run all tests (Go + Python)
  • make test-go - Run all Go tests (unit + e2e)
  • make test-unit - Run Go unit/integration tests only
  • make test-e2e - Run Go e2e tests only
  • make test-go-coverage - Run Go tests and open HTML coverage report

Direct Go Commands

  • Specific package: go test ./pkg/queue/... -v
  • Specific test: go test ./pkg/api -run TestExtractAuthor -v
  • With coverage: go test -v -race -coverprofile=coverage.out ./...
  • Race detector: go test -race ./... (always use for concurrent code)
  • Show coverage: go tool cover -html=coverage.out

Critical Rules

1. Be Pragmatic

Write tests that add real value. If a test requires overly complex mocking or doesn't validate meaningful behavior, skip it. It's better to have no test than a brittle one that breaks with every minor change. If fighting with mocks, consider an integration test instead.

2. Test Behavior, Not Implementation

Focus on what the code does, not how. Don't test that specific internal methods were called or verify exact sequences of internal function calls.

3. No Historical Comments in Code

No // Added in TASK-0025 or // Testing new implementation. Historical context belongs in git commits. Tests should be self-explanatory.

4. Extend Existing Tests Before Creating New Ones

When code already has test coverage, prefer modifying or extending existing tests to cover new behavior rather than creating new test functions that largely duplicate what's already there. Add cases to existing table-driven tests when the scenario fits.

5. All Tests Must Pass

New tests are done ONLY when they ALL pass 100%. Don't leave failing tests. If a test is too complex to get right, don't write it.

6. No Documentation Files Unless Explicitly Requested

DO NOT create summary documents, README files, or any markdown documentation files (like test coverage summaries, test reports, etc.) unless the user explicitly asks for them. Focus exclusively on creating the actual test code.

Read the full file on GitHub · 99 lines

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. 3d ago First seen · 99 lines · 0 tokens per session scan A a13d88199219

Subscribe to this mod's changes

create-backend-tests is a command published in the GitHub repository codeready-toolchain/tarsy (10 stars, last pushed 4d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 1,327 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 2026-08-31.