Test workflow (bytenode/bytenode)

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

CI health: D - needs work

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

What it does

This is the Test workflow from the bytenode/bytenode 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)

# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node

# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions


name: Test


on:
  pull_request:
    branches: [master]

  push:
    branches: [master]


jobs:
  build:
    strategy:
      matrix:
        node-version: [22.x, 24.x]

        os: [ubuntu-latest]


    # run pre-flight tests on ubuntu, instead of full OS support matrix, to reduce costs

    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v4

      - name: Use Node.js ${{ matrix.node-version }}

        uses: actions/setup-node@v4

        with:
          node-version: ${{ matrix.node-version }}

      - uses: actions/cache@v4

        with:
          path: ~/.npm

          key: npm-${{ runner.os }}-${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}

          restore-keys: |

            npm-${{ runner.os }}-${{ matrix.node-version }}-

      - name: Install Packages

        run: npm install

      - name: Run Tests

        run: npm test

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.

# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node

# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions



name: Test



on:

  pull_request:

    branches: [master]

  push:

    branches: [master]



concurrency:

  group: ${{ github.workflow }}-${{ github.ref }}

  cancel-in-progress: true



jobs:

  build:

    timeout-minutes: 30

    strategy:

      matrix:

        node-version: [22.x, 24.x]

        os: [ubuntu-latest]



    # run pre-flight tests on ubuntu, instead of full OS support matrix, to reduce costs

    runs-on: ${{ matrix.os }}

    steps:

      - uses: actions/checkout@v4

      - name: Use Node.js ${{ matrix.node-version }}

        uses: actions/setup-node@v4

        with:

          cache: 'npm'

          node-version: ${{ matrix.node-version }}

      - uses: actions/cache@v4

        with:

          path: ~/.npm

          key: npm-${{ runner.os }}-${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}

          restore-keys: |

            npm-${{ runner.os }}-${{ matrix.node-version }}-

      - name: Install Packages

        run: npm install

      - name: Run Tests

        run: npm test

What changed

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 1 job (2 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 actions/setup-node actions/cache