Tests workflow (ggozad/oterm)

The Tests workflow from ggozad/oterm, explained and optimized by Latchkey.

CI health: F - at risk

Point runs-on at Latchkey and get caching, run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

Grade your own workflow free or run it on Latchkey →

Source: ggozad/oterm.github/workflows/test.ymlLicense MITView source

What it does

This is the Tests workflow from the ggozad/oterm repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

workflow (.yml)

name: Tests
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

jobs:
  lint:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: true
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
    steps:
      - uses: actions/checkout@v4
      - uses: astral-sh/setup-uv@v4
        with:
          enable-cache: true
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - name: Install dependencies
        run: uv sync --all-extras
      - name: Lint
        run: uv run ruff check
      - name: Format check
        run: uv run ruff format --check
      - name: Type check
        run: uv run ty check

  test:
    needs: [lint]
    runs-on: ubuntu-latest
    strategy:
      fail-fast: true
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
        include:
          - python-version: "3.10"
            pytest-args: "--no-cov"
          - python-version: "3.11"
            pytest-args: "--no-cov"
          - python-version: "3.12"
            pytest-args: "--no-cov"
          - python-version: "3.14"
            pytest-args: "--no-cov"
    steps:
      - uses: actions/checkout@v4
      - uses: astral-sh/setup-uv@v4
        with:
          enable-cache: true
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - name: Install dependencies
        run: uv sync --all-extras
      - name: Run tests
        run: uv run pytest ${{ matrix.pytest-args || '--cov --cov-report=xml' }}
      - name: Upload coverage to Codecov
        if: matrix.python-version == '3.13'
        uses: codecov/codecov-action@v5
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          files: ./coverage.xml
          fail_ci_if_error: false

The same workflow, on Latchkey

Estimated ~20% faster on cache hits, plus fewer wasted runs and a safer supply chain. Added and changed lines are highlighted.

name: Tests
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  lint:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      fail-fast: true
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
    steps:
      - uses: actions/checkout@v4
      - uses: astral-sh/setup-uv@v4
        with:
          enable-cache: true
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          cache: 'pip'
          python-version: ${{ matrix.python-version }}
      - name: Install dependencies
        run: uv sync --all-extras
      - name: Lint
        run: uv run ruff check
      - name: Format check
        run: uv run ruff format --check
      - name: Type check
        run: uv run ty check
 
  test:
    timeout-minutes: 30
    needs: [lint]
    runs-on: latchkey-small
    strategy:
      fail-fast: true
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
        include:
          - python-version: "3.10"
            pytest-args: "--no-cov"
          - python-version: "3.11"
            pytest-args: "--no-cov"
          - python-version: "3.12"
            pytest-args: "--no-cov"
          - python-version: "3.14"
            pytest-args: "--no-cov"
    steps:
      - uses: actions/checkout@v4
      - uses: astral-sh/setup-uv@v4
        with:
          enable-cache: true
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          cache: 'pip'
          python-version: ${{ matrix.python-version }}
      - name: Install dependencies
        run: uv sync --all-extras
      - name: Run tests
        run: uv run pytest ${{ matrix.pytest-args || '--cov --cov-report=xml' }}
      - name: Upload coverage to Codecov
        if: matrix.python-version == '3.13'
        uses: codecov/codecov-action@v5
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          files: ./coverage.xml
          fail_ci_if_error: false

What changed

Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
Cancel superseded runs when a branch or PR gets a newer push.
Cache dependency installs on the setup step so they are served from cache.
Add a job timeout so a hung step cannot burn hours of runner time.

2 third-party actions are referenced by a movable tag. Pin them to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

This workflow runs 2 jobs (10 with the matrix expanded) per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow

actions/checkout astral-sh/setup-uv actions/setup-python codecov/codecov-action