Tests workflow (strawberry-graphql/strawberry-django)

The Tests workflow from strawberry-graphql/strawberry-django, explained and optimized by Latchkey.

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Source: strawberry-graphql/strawberry-django.github/workflows/tests.ymlLicense MITView source

What it does

This is the Tests workflow from the strawberry-graphql/strawberry-django 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

# yamllint disable-line rule:truthy
on:
  push:
    branches:
      - main
      - v*
  pull_request:
    branches:
      - main
      - v*
  release:
    types:
      - released

jobs:
  typing:
    name: Typing
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install uv
        uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
      - name: Install Deps
        run: uv sync
      - name: Check for pyright errors
        uses: jakebailey/pyright-action@v2
        with:
          python-path: .venv/bin/python3

  tests:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        django-version:
          - 5.2.*
          - 6.0.*
        python-version:
          - '3.10'
          - '3.11'
          - '3.12'
          - '3.13'
          - '3.14'
        mode:
          - std
          - geos
        gql-core:
          - '3.2'
          - '3.3'
        exclude:
          # Django 6.0 only supports python 3.12+
          - django-version: 6.0.*
            python-version: '3.10'
          - django-version: 6.0.*
            python-version: '3.11'
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install OS Dependencies
        if: ${{ matrix.mode == 'geos' }}
        run: |
          sudo apt-get update
          sudo apt-get install -y binutils gdal-bin libproj-dev libsqlite3-mod-spatialite
      - name: Install uv
        uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
          python-version: ${{ matrix.python-version }}
      - name: Install Deps
        run: uv sync
      - name: Install Django ${{ matrix.django-version }}
        run: uv pip install "django==${{ matrix.django-version }}"
      - name: Install graphql-core ${{ matrix.gql-core }}
        run: |
          if [ "${{ matrix.gql-core }}" = "3.2" ]; then
            uv pip install "graphql-core>=3.2.0,<3.3.0"
          else
            uv pip install "graphql-core==3.3.0a12"
          fi
      - name: Test with pytest
        run: uv run --no-sync pytest -n auto --showlocals -vvv --cov-report=xml
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v5
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

---
name: Tests
 
# yamllint disable-line rule:truthy
on:
  push:
    branches:
      - main
      - v*
  pull_request:
    branches:
      - main
      - v*
  release:
    types:
      - released
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  typing:
    timeout-minutes: 30
    name: Typing
    runs-on: latchkey-small
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install uv
        uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
      - name: Install Deps
        run: uv sync
      - name: Check for pyright errors
        uses: jakebailey/pyright-action@v2
        with:
          python-path: .venv/bin/python3
 
  tests:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      fail-fast: false
      matrix:
        django-version:
          - 5.2.*
          - 6.0.*
        python-version:
          - '3.10'
          - '3.11'
          - '3.12'
          - '3.13'
          - '3.14'
        mode:
          - std
          - geos
        gql-core:
          - '3.2'
          - '3.3'
        exclude:
          # Django 6.0 only supports python 3.12+
          - django-version: 6.0.*
            python-version: '3.10'
          - django-version: 6.0.*
            python-version: '3.11'
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Install OS Dependencies
        if: ${{ matrix.mode == 'geos' }}
        run: |
          sudo apt-get update
          sudo apt-get install -y binutils gdal-bin libproj-dev libsqlite3-mod-spatialite
      - name: Install uv
        uses: astral-sh/setup-uv@v7
        with:
          enable-cache: true
          python-version: ${{ matrix.python-version }}
      - name: Install Deps
        run: uv sync
      - name: Install Django ${{ matrix.django-version }}
        run: uv pip install "django==${{ matrix.django-version }}"
      - name: Install graphql-core ${{ matrix.gql-core }}
        run: |
          if [ "${{ matrix.gql-core }}" = "3.2" ]; then
            uv pip install "graphql-core>=3.2.0,<3.3.0"
          else
            uv pip install "graphql-core==3.3.0a12"
          fi
      - name: Test with pytest
        run: uv run --no-sync pytest -n auto --showlocals -vvv --cov-report=xml
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v5
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}

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.
Add a job timeout so a hung step cannot burn hours of runner time.

3 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.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

Dependency installs

This workflow runs 2 jobs (41 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 codecov/codecov-action