Add CI workflow with Node.js matrix testing and package manager detection

[Copilot]

Adds a production-ready CI workflow that runs tests across Node.js 18.x and 20.x with automatic package manager detection and dependency caching.

Implementation

• Matrix testing: Runs on Node.js 18.x and 20.x in parallel
• Package manager detection: Runtime detection of npm/yarn/pnpm via lockfile presence, with appropriate install commands (npm ci, yarn install --frozen-lockfile, pnpm install --frozen-lockfile)
• Dependency caching: Leverages actions/setup-node@v4 built-in cache using detected manager and lockfile path
• Triggers: Push to main/develop, PRs targeting main/develop, manual dispatch via workflow_dispatch
• Security: Explicit permissions: contents: read following least privilege

Workflow Structure

jobs:
  test:
    strategy:
      matrix:
        node-version: [18.x, 20.x]
    permissions:
      contents: read
    steps:
      - Detect package manager and lockfile
      - Setup Node.js with caching
      - Install with frozen lockfile
      - Run tests with CI=true

The workflow respects the existing test script configuration in package.json (already includes --watchAll=false --passWithNoTests) rather than overriding with duplicate flags.

Original prompt

Add a GitHub Actions workflow to run tests for the Node/React app.

Summary:

• Create a new branch and open a pull request that adds a CI workflow file at .github/workflows/ci-tests.yml.
• The workflow should run on pushes to main/develop, on pull requests, and be triggerable manually.
• It must test on Node.js 18.x and 20.x (matrix), detect package manager (npm/yarn/pnpm), cache deps using setup-node, install dependencies using the detected package manager and lockfile, and run tests once (non-watch) with CI=true.

Files to add:

• .github/workflows/ci-tests.yml

Contents of .github/workflows/ci-tests.yml:

# GitHub Actions workflow: CI - run tests for Node/React app
# Triggers on push to main/develop and on pull requests. Detects package manager (npm/yarn/pnpm),
# caches dependencies, installs, and runs tests once (non-watch).
name: CI - Tests

on:
  push:
    branches: [ "main", "develop" ]
  pull_request:
    branches: [ "main", "develop" ]
  workflow_dispatch:

jobs:
  test:
    name: Test on Node.js ${{ matrix.node-version }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [18.x, 20.x]

    steps:
      - name: Checkout repo
        uses: actions/checkout@v4

      - name: Detect package manager and lockfile
        id: detect
        shell: bash
        run: |
          # default to npm if nothing is found
          if [ -f pnpm-lock.yaml ]; then
            echo "manager=pnpm" >> $GITHUB_OUTPUT
            echo "lockfile=pnpm-lock.yaml" >> $GITHUB_OUTPUT
            echo "install=pnpm install --frozen-lockfile" >> $GITHUB_OUTPUT
          elif [ -f yarn.lock ]; then
            echo "manager=yarn" >> $GITHUB_OUTPUT
            echo "lockfile=yarn.lock" >> $GITHUB_OUTPUT
            echo "install=yarn install --frozen-lockfile" >> $GITHUB_OUTPUT
          elif [ -f package-lock.json ]; then
            echo "manager=npm" >> $GITHUB_OUTPUT
            echo "lockfile=package-lock.json" >> $GITHUB_OUTPUT
            echo "install=npm ci" >> $GITHUB_OUTPUT
          else
            # fallback
            echo "manager=npm" >> $GITHUB_OUTPUT
            echo "lockfile=package-lock.json" >> $GITHUB_OUTPUT
            echo "install=npm install" >> $GITHUB_OUTPUT
          fi

      - name: Setup Node.js and dependency cache
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: ${{ steps.detect.outputs.manager }}
          cache-dependency-path: ${{ steps.detect.outputs.lockfile }}

      - name: Install dependencies
        shell: bash
        run: |
          echo "Using package manager: ${{ steps.detect.outputs.manager }}"
          echo "Running install command: ${{ steps.detect.outputs.install }}"
          eval "${{ steps.detect.outputs.install }}"

      - name: Run tests
        env:
          CI: true
        shell: bash
        run: |
          echo "Running test script using ${{ steps.detect.outputs.manager }}"
          if [ "${{ steps.detect.outputs.manager }}" = "npm" ]; then
            npm test -- --watchAll=false
          elif [ "${{ steps.detect.outputs.manager }}" = "yarn" ]; then
            yarn test --watchAll=false
          else
            pnpm test -- --watchAll=false
          fi

Notes/assumptions:

• I did not set a base branch explicitly because the user did not specify one; the PR will target the repository default branch.
• Branch name suggestion: ci/add-test-workflow (the implementation may create this branch name).

Please create the branch, add the file, and open a pull request with a descriptive title and PR description that explains the change and how to test it.

This pull request was created as a result of the following prompt from Copilot chat.

Add a GitHub Actions workflow to run tests for the Node/React app.

Summary:

• Create a new branch and open a pull request that adds a CI workflow file at .github/workflows/ci-tests.yml.
• The workflow should run on pushes to main/develop, on pull requests, and be triggerable manually.
• It must test on Node.js 18.x and 20.x (matrix), detect package manager (npm/yarn/pnpm), cache deps using setup-node, install dependencies using the detected package manager and lockfile, and run tests once (non-watch) with CI=true.

Files to add:

• .github/workflows/ci-tests.yml

Contents of .github/workflows/ci-tests.yml:

# GitHub Actions workflow: CI - run tests for Node/React app
# Triggers on push to main/develop and on pull requests. Detects package manager (npm/yarn/pnpm),
# caches dependencies, installs, and runs tests once (non-watch).
name: CI - Tests

on:
  push:
    branches: [ "main", "develop" ]
  pull_request:
    branches: [ "main", "develop" ]
  workflow_dispatch:

jobs:
  test:
    name: Test on Node.js ${{ matrix.node-version }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [18.x, 20.x]

    steps:
      - name: Checkout repo
        uses: actions/checkout@v4

      - name: Detect package manager and lockfile
        id: detect
        shell: bash
        run: |
          # default to npm if nothing is found
          if [ -f pnpm-lock.yaml ]; then
            echo "manager=pnpm" >> $GITHUB_OUTPUT
            echo "lockfile=pnpm-lock.yaml" >> $GITHUB_OUTPUT
            echo "install=pnpm install --frozen-lockfile" >> $GITHUB_OUTPUT
          elif [ -f yarn.lock ]; then
            echo "manager=yarn" >> $GITHUB_OUTPUT
            echo "lockfile=yarn.lock" >> $GITHUB_OUTPUT
            echo "install=yarn install --frozen-lockfile" >> $GITHUB_OUTPUT
          elif [ -f package-lock.json ]; then
            echo "manager=npm" >> $GITHUB_OUTPUT
            echo "lockfile=package-lock.json" >> $GITHUB_OUTPUT
            echo "install=npm ci" >> $GITHUB_OUTPUT
          else
            # fallback
            echo "manager=npm" >> $GITHUB_OUTPUT
            echo "lockfile=package-lock.json" >> $GITHUB_OUTPUT
            echo "install=npm install" >> $GITHUB_OUTPUT
          fi

      - name: Setup Node.js and dependency cache
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}
          cache: ${{ steps.detect.outputs.manager }}
          cache-dependency-path: ${{ steps.detect.outputs.lockfile }}

      - name: Install dependencies
        shell: bash
        run: |
          echo "Using package manager: ${{ steps.detect.outputs.manager }}"
          echo "Running install command: ${{ steps.detect.outputs.install }}"
          eval "${{ steps.detect.outputs.install }}"

      - name: Run tests
        env:
          CI: true
        shell: bash
        run: |
          echo "Running test script using ${{ steps.detect.outputs.manager }}"
          if [ "${{ steps.detect.outputs.manager }}" = "npm" ]; then
            npm test -- --watchAll=false
          elif [ "${{ steps.detect.outputs.manager }}" = "yarn" ]; then
            yarn test --watchAll=false
          else
            pnpm test -- --watchAll=false
          fi

Notes/assumptions:

• I did not set a base branch explicitly because the user did not specify one; the PR will target the repository default branch.
• Branch name suggestion: ci/add-test-workflow (the implementation may create this branch name).

Please create the branch, add the file, and open a pull request with a descriptive title and PR description that explains the change and how to test it.

---

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[netlify]

❌ Deploy Preview for legendary-sunburst-82c066 failed. Why did it fail? →

Name	Link
🔨 Latest commit	78355e5
🔍 Latest deploy log	https://app.netlify.com/projects/legendary-sunburst-82c066/deploys/693d983910cdfb00087e3236

[Andrew112]

this was a good attempt at deplying my website allthoguh netlify failed to launch.

[Copilot]

this was a good attempt at deplying my website allthoguh netlify failed to launch.

This PR adds a CI workflow for running tests (ci-tests.yml), not deployment. The workflow only runs tests on Node.js 18.x and 20.x when code is pushed. Any Netlify deployment issues would be separate from this change - Netlify typically deploys via its own integration or a different workflow.