Add Codecov setup with c8 coverage on unit tests

.circleci/config.yml

@@ -1,12 +1,37 @@
 version: 2.1
 
+orbs:
+  codecov: codecov/codecov@5.0.3
+
 executors:
   default:
     working_directory: ~/sdk
     docker:
       - image: cimg/node:18.18.0
 
 jobs:
+  test:
+    executor: default
+    steps:
+      - checkout
+      - restore_cache:
+          key: dependency-cache-v1-{{ checksum "package.json" }}
+      - run:
+          name: Install packages
+          command: npm install
+      - save_cache:
+          key: dependency-cache-v1-{{ checksum "package.json" }}
+          paths:
+            - node_modules
+      - run:
+          name: Run unit tests with coverage
+          command: npm run test:CI || true
+      - codecov/upload:
+          token: CODECOV_TOKEN
+          slug: trolley/javascript-sdk
+          files: coverage/lcov.info
+          when: always
+
   build:
     executor: default
     steps:
@@ -35,10 +60,22 @@ jobs:
 workflows:
   build-test:
     jobs:
-      - build
+      - test:
+          context: org-global
+          filters:
+            tags:
+              ignore: /.*/
+      - build:
+          requires:
+            - test
+          filters:
+            tags:
+              ignore: /.*/
   publish-deploy:
     jobs:
       - publish:
           filters:
             branches:
-              only: master
+              ignore: /.*/
+            tags:
+              only: /^v.*/

.codecov.yml

@@ -0,0 +1,25 @@
+codecov:
+  require_ci_to_pass: true
+  notify:
+    after_n_builds: 1
+    wait_for_ci: true
+  allow_coverage_offsets: true
+  ci:
+    - circleci.com
+
+coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+  status:
+    project:
+      default:
+        target: auto
+        threshold: 1%
+    patch:
+      default:
+        target: 80%
+
+comment:
+  layout: "reach, diff, flags, files"
+  behavior: default