unit-tests-langchain.yml

# This workflow will do a clean installation of node dependencies, cache/restore them, build the source code and run tests across different versions of node
# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-nodejs

name: Unit Tests (LangChain)

on:
  push:
    branches: ["main"]
  pull_request:
    # Only run when LangChain, or LangChain Core code changes.
    paths:
      - 'langchain/**'
      - 'langchain-core/**'
  workflow_dispatch:  # Allows triggering the workflow manually in GitHub UI


# If another push to the same PR or branch happens while this workflow is still running,
# cancel the earlier run in favor of the next run.
#
# There's no point in testing an outdated version of the code. GitHub only allows
# a limited number of job runners to be active at the same time, so it's better to cancel
# pointless jobs early so that more useful jobs can run sooner.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  unit-tests:
    name: Unit Tests
    strategy:
      matrix:
        os: [ubuntu-latest]
        node-version: [18.x, 20.x]
        # See Node.js release schedule at https://nodejs.org/en/about/releases/
        # include:
          # - os: windows-latest
          #   node-version: 20.x
          # - os: macos-latest
          #   node-version: 20.x
    runs-on: ${{ matrix.os }}
    env:
      PUPPETEER_SKIP_DOWNLOAD: "true"
      PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD: "true"
    steps:
      - uses: actions/checkout@v4
      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v3
        with:
          node-version: ${{ matrix.node-version }}
          cache: "yarn"
      - name: Install dependencies
        run: yarn install --immutable
        # Running `test:unit:ci` from root will build first, however debugging
        # in CI is easier if we separate the build step from the test step.
      - name: Build LangChain
        run: yarn build --filter=langchain
      - name: Test
        run: yarn run test:unit:ci --filter=langchain
        env:
          COHERE_API_KEY: ${{ secrets.COHERE_API_KEY }}