puppeteer/.github/workflows/main.yml
Jack Franklin 6a0eb7841f
fix: wider compat TS types and CI checks to ensure correct type defs (#6855)
* fix: wider compat TS types and CI checks to ensure correct type defs

This PR improves our TS types further to make sure they are usable in a
TS environment where ES Modules are the target output. Our use of
`export =` is problematic this environment as TypeScript does not allow
`export =` to be used and it errors.

The fix for the type issues to avoid `export =` is to instead define the
functions that you gain access to when you import Puppeteer as top level
functions in our `types.d.ts` file. We can do this by declaring them
explicitly in `src/node.ts`. These are then rolled into `lib/types.d.ts`
at build time. The downside to this is that we have to keep those
declarations in sync with the Puppeteer API; should we add a new method
to the `Puppeteer` class, we must add it to the `nodes.ts` declarations.
However, this could easily be automated by a small script that walks the
AST and generates these. I will do that in a follow-up PR, but I
consider this low risk given how rarely the very top level API of
Puppeteer changes. The nice thing about this approach is we no longer
need our script that hacks on changes to `lib/types.d.ts`.

To avoid yet more releases to fix issues in one particular TS
environment, this PR also includes a suite of example setups that we
test on each CI run. Each sample folder contains `good.ts`, which should
have no TS errors, and `bad.ts`, which should have some errors. The test
first packs Puppeteer into a tar, and then installs it from that tar
into each project. This should replicate how the published package
behaves when it is installed. We then check that we get no errors on
`good.ts`, and the expected errors on `bad.ts`.

We have a variety of test projects that cover both TS and JS source
code, and CJS and ESM imports and outputs.
2021-02-10 12:04:36 +00:00

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YAML

name: run-checks
on:
push:
branches:
- main
pull_request:
branches:
- main
jobs:
linux-main-checks:
# https://github.com/actions/virtual-environments#available-environments
runs-on: ubuntu-latest
strategy:
matrix:
# Include all major maintenance + active LTS Node.js versions.
# https://github.com/nodejs/Release#release-schedule
node: [10, 12, 14]
steps:
- name: Checkout
uses: actions/checkout@v2
with:
fetch-depth: 2
- name: Set up Node.js
uses: actions/setup-node@v1
with:
node-version: ${{ matrix.node }}
- name: Install dependencies
run: |
sudo apt-get install xvfb
# Ensure both a Chromium and a Firefox binary are available.
PUPPETEER_PRODUCT=firefox npm install
npm install
ls .local-chromium .local-firefox
- name: Build
run: |
npm run build
- name: Run code checks
run: |
npm run lint
npm run generate-docs
npm run ensure-correct-devtools-protocol-revision
npm run test-types-file
- name: Run unit tests
env:
CHROMIUM: true
run: |
xvfb-run --auto-servernum npm run unit
- name: Run unit tests with coverage
env:
CHROMIUM: true
run: |
xvfb-run --auto-servernum npm run unit-with-coverage
xvfb-run --auto-servernum npm run assert-unit-coverage
- name: Run unit tests on Firefox
env:
FIREFOX: true
run: |
xvfb-run --auto-servernum npm run funit
- name: Run browser tests
run: |
npm run test-browser
- name: Test bundling and installation
env:
CHROMIUM: true
run: |
# Note: this modifies package.json to test puppeteer-core.
npm run test-install
# Undo those changes.
git checkout --force
macos:
# https://github.com/actions/virtual-environments#available-environments
runs-on: macos-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
fetch-depth: 2
- name: Set up Node.js
uses: actions/setup-node@v1
with:
# Test only the oldest maintenance LTS Node.js version.
# https://github.com/nodejs/Release#release-schedule
node-version: 10
- name: Install dependencies
run: |
# Test platform-specific browser binary fetching for both
# Chromium and Firefox.
PUPPETEER_PRODUCT=firefox npm install
npm install
ls .local-chromium .local-firefox
- name: Build
run: |
npm run build
- name: Run unit tests
env:
CHROMIUM: true
run: |
npm run unit
windows:
# https://github.com/actions/virtual-environments#available-environments
runs-on: windows-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
fetch-depth: 2
- name: Set up Node.js
uses: actions/setup-node@v1
with:
# Test only the oldest maintenance LTS Node.js version.
# https://github.com/nodejs/Release#release-schedule
node-version: 10
- name: Install dependencies
run: |
# Test platform-specific browser binary fetching for both
# Chromium and Firefox.
$env:PUPPETEER_PRODUCT='firefox'
npm install
Remove-Item Env:\PUPPETEER_PRODUCT
npm install
Get-ChildItem -Path .local-chromium,.local-firefox
- name: Build
run: |
npm run build
- name: Run unit tests
env:
CHROMIUM: true
run: |
npm run unit