Adding circle ci config

Author: Dom Harrington

.circleci/config.yml

@@ -0,0 +1,33 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/node:10
+        environment:
+          CC_TEST_REPORTER_ID: 78920f9261ea42577b43485502978df56a1b906f8302787fa4874c6741b7faf9
+
+    working_directory: ~/repo
+
+    steps:
+      - checkout
+
+      # Download and cache dependencies
+      - restore_cache:
+          keys:
+          - v1-dependencies-{{ checksum "package.json" }}
+          # fallback to using the latest cache if no exact match is found
+          - v1-dependencies-
+
+      - run: npm install
+
+      - save_cache:
+          paths:
+            - node_modules
+          key: v1-dependencies-{{ checksum "package.json" }}
+
+      # run tests!
+      - run: curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
+      - run: chmod +x ./cc-test-reporter
+      - run: ./cc-test-reporter before-build
+      - run: npm test
+      - run: ./cc-test-reporter after-build -t lcov --exit-code $?