test: fix dev traces

.github/workflows/playwright.yml

@@ -59,6 +59,11 @@ jobs:
       - name: Build extension in test mode
         run: yarn build:test
 
+      - name: Extract branch name
+        shell: bash
+        run: echo "branch=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}" >> $GITHUB_OUTPUT
+        id: extract_branch
+
         # Playwright can only test extensions in headed mode, see
         # https://playwright.dev/docs/chrome-extensions. To run a browser in
         # headed mode, a display server is necessary. However, this job runs on
@@ -72,7 +77,7 @@ jobs:
       - name: Run Playwright tests
         run: xvfb-run yarn playwright test tests/specs --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }} --workers=1
         env:
-          GITHUB_HEAD_REF: ${{ github.head_ref }}
+          BRANCH_NAME: ${{ steps.extract_branch.outputs.branch }}
           TEST_ACCOUNT_SECRET_KEY: ${{ secrets.TEST_ACCOUNT_SECRET_KEY }}
 
       - name: Upload blob report to GitHub Actions Artifacts

playwright.config.ts

@@ -1,6 +1,6 @@
 import { defineConfig, devices } from '@playwright/test';
 
-console.log('Branch: ', process.env.GITHUB_HEAD_REF);
+console.log('Branch: ', process.env.BRANCH_NAME);
 
 /**
  * See https://playwright.dev/docs/test-configuration
@@ -21,7 +21,7 @@ export default defineConfig({
   use: {
     // Traces are heavy so we want to use them sparingly, but having full trace
     // to reference of the latest dev build is useful to inspect.
-    trace: process.env.GITHUB_HEAD_REF === 'dev' ? 'on' : 'on-first-retry',
+    trace: process.env.BRANCH_NAME === 'dev' ? 'on' : 'on-first-retry',
   },
   projects: [
     {