Skip to content
Latchkey

Test Suite workflow (encode/uvicorn)

The Test Suite workflow from encode/uvicorn, explained and optimized by Latchkey.

C

CI health: C - fair

The optimized version below adds run de-duplication, job timeouts.

Source: encode/uvicorn.github/workflows/main.ymlLicense BSD-3-ClauseView source

What it does

This is the Test Suite workflow from the encode/uvicorn repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

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

The workflow

workflow (.yml)
name: Test Suite

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]

jobs:
  tests:
    name: "Python ${{ matrix.python-version }} ${{ matrix.os }}"
    runs-on: "${{ matrix.os }}"
    timeout-minutes: 10

    permissions:
      contents: read

    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
        os: [windows-latest, ubuntu-latest, macos-latest]

    steps:
      - uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0
        with:
          persist-credentials: false

      - name: Install uv
        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
        with:
          python-version: ${{ matrix.python-version }}
          enable-cache: ${{ matrix.os != 'windows-latest' }}

      - name: Install dependencies
        run: scripts/install
        shell: bash

      - name: Run linting checks
        run: scripts/check
        if: "${{ matrix.os == 'ubuntu-latest'}}"

      - name: "Build package & docs"
        run: scripts/build
        shell: bash

      - name: "Run tests"
        run: scripts/test
        shell: bash

      - name: "Enforce coverage"
        run: scripts/coverage
        shell: bash

  docs-preview:
    if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository
    runs-on: ubuntu-latest

    env:
      HAS_CLOUDFLARE_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN != '' }}

    permissions:
      contents: read
      pull-requests: write

    environment:
      name: cloudflare
      url: ${{ steps.deploy.outputs.deployment-url }}

    steps:
      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
        with:
          persist-credentials: false

      - name: Install uv
        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0
        with:
          python-version: "3.12"
          enable-cache: false

      - name: Install dependencies
        run: scripts/install

      - name: Build docs
        run: uv run zensical build

      - name: Deploy preview to Cloudflare Workers
        id: deploy
        if: ${{ env.HAS_CLOUDFLARE_TOKEN == 'true' }}
        uses: cloudflare/wrangler-action@ebbaa1584979971c8614a24965b4405ff95890e0 # v4.0.0
        with:
          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
          command: versions upload --tag pr-${{ github.event.pull_request.number }}

      - name: Comment preview URL on PR
        if: ${{ steps.deploy.outcome == 'success' }}
        uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3.0.1
        with:
          message: |
            :book: Docs preview: ${{ steps.deploy.outputs.deployment-url }}
          comment-tag: docs-preview

  # https://github.com/marketplace/actions/alls-green#why
  check:
    if: always()
    needs: [tests]
    runs-on: ubuntu-latest

    permissions:
      contents: read

    steps:
      - name: Decide whether the needed jobs succeeded or failed
        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2
        with:
          jobs: ${{ toJSON(needs) }}

The same workflow, on Latchkey

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

name: Test Suite on:  push:    branches: ["main"]  pull_request:    branches: ["main"] concurrency:  group: ${{ github.workflow }}-${{ github.ref }}  cancel-in-progress: true jobs:  tests:    name: "Python ${{ matrix.python-version }} ${{ matrix.os }}"    runs-on: latchkey-small    timeout-minutes: 10     permissions:      contents: read     strategy:      fail-fast: false      matrix:        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]        os: [windows-latest, ubuntu-latest, macos-latest]     steps:      - uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v7.0.0        with:          persist-credentials: false       - name: Install uv        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0        with:          python-version: ${{ matrix.python-version }}          enable-cache: ${{ matrix.os != 'windows-latest' }}       - name: Install dependencies        run: scripts/install        shell: bash       - name: Run linting checks        run: scripts/check        if: "${{ matrix.os == 'ubuntu-latest'}}"       - name: "Build package & docs"        run: scripts/build        shell: bash       - name: "Run tests"        run: scripts/test        shell: bash       - name: "Enforce coverage"        run: scripts/coverage        shell: bash   docs-preview:    timeout-minutes: 30    if: github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository    runs-on: latchkey-small     env:      HAS_CLOUDFLARE_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN != '' }}     permissions:      contents: read      pull-requests: write     environment:      name: cloudflare      url: ${{ steps.deploy.outputs.deployment-url }}     steps:      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0        with:          persist-credentials: false       - name: Install uv        uses: astral-sh/setup-uv@fac544c07dec837d0ccb6301d7b5580bf5edae39 # v8.2.0        with:          python-version: "3.12"          enable-cache: false       - name: Install dependencies        run: scripts/install       - name: Build docs        run: uv run zensical build       - name: Deploy preview to Cloudflare Workers        id: deploy        if: ${{ env.HAS_CLOUDFLARE_TOKEN == 'true' }}        uses: cloudflare/wrangler-action@ebbaa1584979971c8614a24965b4405ff95890e0 # v4.0.0        with:          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}          accountId: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}          command: versions upload --tag pr-${{ github.event.pull_request.number }}       - name: Comment preview URL on PR        if: ${{ steps.deploy.outcome == 'success' }}        uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3.0.1        with:          message: |            :book: Docs preview: ${{ steps.deploy.outputs.deployment-url }}          comment-tag: docs-preview   # https://github.com/marketplace/actions/alls-green#why  check:    timeout-minutes: 30    if: always()    needs: [tests]    runs-on: latchkey-small     permissions:      contents: read     steps:      - name: Decide whether the needed jobs succeeded or failed        uses: re-actors/alls-green@05ac9388f0aebcb5727afa17fcccfecd6f8ec5fe # v1.2.2        with:          jobs: ${{ toJSON(needs) }} 

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.

This workflow runs 3 jobs (20 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

astral-sh/setup-uv actions/checkout cloudflare/wrangler-action thollander/actions-comment-pull-request re-actors/alls-green

Frequently asked questions

What does the Test Suite workflow (encode/uvicorn) workflow do?
This is the Test Suite workflow from the encode/uvicorn repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.
What CI health grade does this workflow get?
This Automation and other workflow grades C. Paste your own workflow into the Latchkey grader to see its grade and the exact fixes.
How can I improve this Automation and other workflow?
Apply run de-duplication, job timeouts. Latchkey applies these automatically on managed runners when you point runs-on at Latchkey.

References