Test workflow (browserslist/browserslist)

The Test workflow from browserslist/browserslist, explained and optimized by Latchkey.

CI health: D - needs work

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

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Source: browserslist/browserslist.github/workflows/test.ymlLicense MITView source

What it does

This is the Test workflow from the browserslist/browserslist 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: Test
on:
  push:
    branches:
      - main
  pull_request:
permissions:
  contents: read
jobs:
  full:
    name: Node.js Latest Full
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Install Node.js & pnpm
        uses: pnpm/setup@5d160c5bc68a09337ad0d5654e237e03253b5879 # v1.0.0
        with:
          version: 11
          runtime: node@26
      - name: Install dependencies
        run: pnpm ci
      - name: Run tests
        run: pnpm test
  short:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node:
          - 24
          - 22
    name: Node.js ${{ matrix.node }} Quick
    steps:
      - name: Checkout the repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Install Node.js & pnpm
        uses: pnpm/setup@5d160c5bc68a09337ad0d5654e237e03253b5879 # v1.0.0
        with:
          version: 11
          runtime: node@${{ matrix.node }}
      - name: Install dependencies
        run: pnpm install --ignore-scripts
      - name: Run unit tests
        run: pnpm unit
  old:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node:
          - 20
          - 18
          - 16
          - 14
          - 12
          - 10
          - 8
    name: Node.js ${{ matrix.node }} Quick
    steps:
      - name: Checkout the repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Install pnpm
        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5.0.0
        with:
          version: 3
        env:
          ACTIONS_ALLOW_UNSECURE_COMMANDS: true
      - name: Install Node.js ${{ matrix.node }}
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          node-version: ${{ matrix.node }}
      - name: Install dependencies
        run: pnpm install --no-frozen-lockfile --ignore-scripts
      - name: Run unit tests
        run: pnpm unit

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: Test
on:
  push:
    branches:
      - main
  pull_request:
permissions:
  contents: read
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  full:
    timeout-minutes: 30
    name: Node.js Latest Full
    runs-on: latchkey-small
    steps:
      - name: Checkout the repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Install Node.js & pnpm
        uses: pnpm/setup@5d160c5bc68a09337ad0d5654e237e03253b5879 # v1.0.0
        with:
          version: 11
          runtime: node@26
      - name: Install dependencies
        run: pnpm ci
      - name: Run tests
        run: pnpm test
  short:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        node:
          - 24
          - 22
    name: Node.js ${{ matrix.node }} Quick
    steps:
      - name: Checkout the repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Install Node.js & pnpm
        uses: pnpm/setup@5d160c5bc68a09337ad0d5654e237e03253b5879 # v1.0.0
        with:
          version: 11
          runtime: node@${{ matrix.node }}
      - name: Install dependencies
        run: pnpm install --ignore-scripts
      - name: Run unit tests
        run: pnpm unit
  old:
    timeout-minutes: 30
    runs-on: latchkey-small
    strategy:
      matrix:
        node:
          - 20
          - 18
          - 16
          - 14
          - 12
          - 10
          - 8
    name: Node.js ${{ matrix.node }} Quick
    steps:
      - name: Checkout the repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
      - name: Install pnpm
        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5.0.0
        with:
          version: 3
        env:
          ACTIONS_ALLOW_UNSECURE_COMMANDS: true
      - name: Install Node.js ${{ matrix.node }}
        uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
        with:
          cache: 'npm'
          node-version: ${{ matrix.node }}
      - name: Install dependencies
        run: pnpm install --no-frozen-lockfile --ignore-scripts
      - name: Run unit tests
        run: pnpm unit

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.

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 3 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 pnpm/action-setup actions/setup-node