Merge pull request #14533 from mozilla/add-circleci-split

test(functional): add parallelism and circleci split to functional tests

.circleci/config.yml

@@ -305,6 +305,7 @@ jobs:
 
   playwright-functional-tests:
     resource_class: large
+    parallelism: 5
     docker:
       - image: mcr.microsoft.com/playwright:v1.20.0-focal
       - image: redis

packages/functional-tests/scripts/test-ci.sh

@@ -28,4 +28,7 @@ yarn workspaces foreach \
 
 npx pm2 ls
 
-yarn workspace functional-tests test
+#yarn workspace functional-tests test
+
+circleci tests glob "packages/functional-tests/tests/**/*.spec.ts" | circleci tests split > tests-to-run.txt
+yarn workspace functional-tests test $(cat tests-to-run.txt|awk -F"/" '{ print $NF }')