ci: added parallelism to tests + job level retries in CI (#200)

Author: porcellus

.circleci/config_continue.yml

@@ -23,7 +23,7 @@ jobs:
       - checkout
       - run: echo "127.0.0.1 localhost.org" >> /etc/hosts
       - run: npm i -d
-      - run: (cd .circleci/ && ./doTests.sh  << parameters.fdi-version >>)
+      - run: for i in $(seq 1 5); do (cd .circleci/ && ./doTests.sh  << parameters.fdi-version >>) && s=0 && break || s=$? && sleep 10; done; (exit $s) # https://support.circleci.com/hc/en-us/articles/5728720104347-How-To-Retry-an-Intermittently-Failing-Step
       - run: npm run size
       - run: npm run check-circular-dependencies
   test-success:

.circleci/setupAndTestWithFreeCore.sh

@@ -51,7 +51,13 @@ cd ../../test/server/
 TEST_MODE=testing INSTALL_PATH=../../../supertokens-root NODE_PORT=8082 node . &
 pid=$!
 cd ../../
-SUPERTOKENS_CORE_TAG=$coreTag INSTALL_PATH=../supertokens-root npm test
+
+if ! [[ -z "${CIRCLE_NODE_TOTAL}" ]]; then
+    SUPERTOKENS_CORE_TAG=$coreTag INSTALL_PATH=../supertokens-root multi="spec=- mocha-junit-reporter=/dev/null" mocha --reporter mocha-multi --no-config --require isomorphic-fetch --timeout 500000 $(npx mocha-split-tests -r ./runtime.log -t $CIRCLE_NODE_TOTAL -g $CIRCLE_NODE_INDEX -f 'test/*.test.js')
+else
+    SUPERTOKENS_CORE_TAG=$coreTag INSTALL_PATH=../supertokens-root npm test
+fi
+
 if [[ $? -ne 0 ]]
 then
     echo "test failed... exiting!"