[Visual Testing] Add documentation for the testing mechanism #14
Workflow file for this run
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name: Percy Visual Tests | |
on: [pull_request_target] | |
jobs: | |
pre_job: | |
name: Path match check | |
runs-on: ubuntu-latest | |
# Map a step output to a job output | |
outputs: | |
should_skip: ${{ steps.skip_check.outputs.should_skip }} | |
steps: | |
- id: skip_check | |
uses: fkirc/skip-duplicate-actions@master | |
with: | |
github_token: ${{ github.token }} | |
paths: '["**.vue", "**.js", "**.css", "**.scss", "yarn.lock"]' | |
visual_tests: | |
name: Frontend Visual Tests | |
needs: pre_job | |
if: ${{ needs.pre_job.outputs.should_skip != 'true' }} | |
runs-on: ubuntu-latest | |
environment: percy_tests | |
outputs: | |
percy_url: ${{ steps.extract-url.outputs.percy_url }} | |
steps: | |
- name: Checkout code from PR | |
uses: actions/checkout@v4 | |
with: | |
ref: ${{ github.event.pull_request.head.sha }} | |
- name: Use Node.js | |
uses: actions/setup-node@v4 | |
with: | |
node-version: '18.x' | |
- name: Cache Node.js modules | |
uses: actions/cache@v4 | |
with: | |
path: '**/node_modules' | |
key: ${{ runner.OS }}-node-${{ hashFiles('**/yarn.lock') }} | |
restore-keys: | | |
${{ runner.OS }}-node- | |
- name: Install dependencies | |
run: | | |
yarn --frozen-lockfile | |
npm rebuild node-sass | |
- name: Download Chromium | |
run: npx puppeteer browsers install chrome | |
- name: Extract jsdocs and environment info | |
run: yarn pregenerate | |
- name: Run visual tests | |
run: yarn test:visual 2>&1 | tee test-output.log | |
env: | |
PERCY_TOKEN: ${{ secrets.PERCY_TOKEN }} | |
- name: Extract Percy build URL | |
id: extract-url | |
run: | | |
url=$(grep -o 'https://percy.io/[a-zA-Z0-9/_-]*' test-output.log | tail -1) | |
echo "percy_url=$url" >> $GITHUB_OUTPUT | |
comment: | |
name: Comment Percy results | |
needs: visual_tests | |
if: ${{ needs.visual_tests.result == 'success' }} | |
runs-on: ubuntu-latest | |
steps: | |
- name: Post results comment | |
uses: thollander/actions-comment-pull-request@v2 | |
env: | |
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
with: | |
message: | | |
### Percy Visual Test Results | |
**Percy Dashboard:** [View Detailed Report](${{ needs.visual_tests.outputs.percy_url }}) | |
**Environment:** | |
- **Node.js Version:** 18.x | |
- **OS:** Ubuntu-latest | |
**Instructions for Reviewers:** | |
- Click on the [Percy Dashboard](${{ needs.visual_tests.outputs.percy_url }}) link to view detailed visual diffs. | |
- Review the visual changes highlighted in the report. | |
- Approve or request changes based on the visual differences. | |
comment_tag: execution | |
mode: recreate |