diff --git a/Gruntfile.js b/Gruntfile.js
index 03f70565b57..a0607ef49dc 100644
--- a/Gruntfile.js
+++ b/Gruntfile.js
@@ -22,6 +22,7 @@ module.exports = function (grunt) {
     }
   }
 
+  config.coverage = grunt.option('coverage');
   config.phjs = grunt.option('phjsToRelease');
   config.pkg.version = grunt.option('pkgVer') || config.pkg.version;
 
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 00000000000..82a86e0232b
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,13 @@
+coverage:
+  precision: 2
+  round: down
+  range: "50...100"
+
+  status:
+    project: yes
+    patch: yes
+    changes: no
+
+comment:
+  layout: "diff"
+  behavior: "once"
diff --git a/package.json b/package.json
index b74d23f33b2..ce861a25f7b 100644
--- a/package.json
+++ b/package.json
@@ -102,6 +102,7 @@
     "watch": "webpack --progress --colors --watch --config scripts/webpack/webpack.dev.js",
     "build": "grunt build",
     "test": "grunt test",
+    "test:coverage": "grunt test --coverage=true",
     "lint": "tslint -c tslint.json --project tsconfig.json --type-check",
     "karma": "grunt karma:dev",
     "jest": "jest --notify --watch",
diff --git a/scripts/circle-test-frontend.sh b/scripts/circle-test-frontend.sh
index 325c24ae7a9..9857e00f70d 100755
--- a/scripts/circle-test-frontend.sh
+++ b/scripts/circle-test-frontend.sh
@@ -10,5 +10,10 @@ function exit_if_fail {
     fi
 }
 
-exit_if_fail npm run test
-exit_if_fail npm run build
\ No newline at end of file
+exit_if_fail npm run test:coverage
+exit_if_fail npm run build
+
+# publish code coverage
+echo "Publishing javascript code coverage"
+bash <(curl -s https://codecov.io/bash) -cF javascript
+rm -rf coverage
diff --git a/scripts/grunt/options/exec.js b/scripts/grunt/options/exec.js
index be163581bf6..e22d060ea04 100644
--- a/scripts/grunt/options/exec.js
+++ b/scripts/grunt/options/exec.js
@@ -1,9 +1,14 @@
 module.exports = function(config, grunt) {
   'use strict';
 
+  var coverage = '';
+  if (config.coverage) {
+    coverage = '--coverage --maxWorkers 2';
+  }
+
   return {
     tslint: 'node ./node_modules/tslint/lib/tslint-cli.js -c tslint.json --project ./tsconfig.json',
-    jest: 'node ./node_modules/jest-cli/bin/jest.js --maxWorkers 2',
+    jest: 'node ./node_modules/jest-cli/bin/jest.js ' + coverage,
     webpack: 'node ./node_modules/webpack/bin/webpack.js --config scripts/webpack/webpack.prod.js',
   };
 };