adding test coverage

.circleci/config.yml

@@ -8,6 +8,9 @@ jobs:
       - run:
           name: dep install
           command: npm install
+      - run:
+          name: install codecov
+          command: npm install -g codecov
       - run:
           name: test
-          command: npm test
+          command: npm test && codecov

.gitignore

@@ -1 +1,2 @@
 node_modules
+coverage

package.json

@@ -14,6 +14,8 @@
     ]
   },
   "jest": {
+    "coverageDirectory": "./coverage/",
+    "collectCoverage": true,
     "transform": {
       "^.+\\.(js|jsx|mjs)$": "<rootDir>/node_modules/babel-jest",
       "^.+\\.(css|scss)$": "<rootDir>/jest/cssTransform.js",