[added] JUnit reporter for CircleCI

Summary: [Recommended by CircleCI](https://circleci.com/docs/1.0/test-metadata/#karma)

Reviewers: O2 Material Motion, O3 Material JavaScript platform reviewers, #material_motion, featherless

Reviewed By: O2 Material Motion, #material_motion, featherless

Tags: #material_motion

Differential Revision: http://codereview.cc/D2919

karma.conf.js

@@ -10,7 +10,16 @@ module.exports = function(config) {
     browsers: process.env.CI
       ? ['Chrome', 'Firefox']
       : ['ChromeCanary'],
-    reporters: ['progress'],
+
+    // CircleCI needs JUnit to show tests correctly.
+    // https://circleci.com/docs/1.0/test-metadata/#karma
+    reporters: process.env.CI
+      ? ['junit']
+      : ['progress'],
+    junitReporter: {
+      outputDir: process.env.CIRCLE_TEST_REPORTS,
+    },
+
     client: {
       mocha: {
         reporter: 'html',

package.json

@@ -17,13 +17,15 @@
     "karma": "1.3.0",
     "karma-chrome-launcher": "2.0.0",
     "karma-firefox-launcher": "1.0.0",
+    "karma-junit-reporter": "1.2.0",
     "karma-mocha": "1.2.0",
     "karma-safari-launcher": "1.0.0",
     "karma-webpack": "1.8.0",
     "lerna": "2.0.0-beta.38",
-    "minimist": "^1.2.0",
+    "minimist": "1.2.0",
     "mocha": "3.1.1",
     "mocha-sugar-free": "1.3.1",
+    "pundle": "2.0.0-beta12",
     "pundle-api": "2.0.0-beta12",
     "pundle-browser": "2.0.0-beta12",
     "pundle-cli": "2.0.0-beta12",
@@ -37,7 +39,6 @@
     "pundle-reporter-cli": "2.0.0-beta12",
     "pundle-resolver-default": "2.0.0-beta12",
     "pundle-transformer-typescript": "2.0.0-beta12",
-    "pundle": "2.0.0-beta12",
     "sinon": "2.0.0-pre.3",
     "sinon-chai": "2.8.0",
     "ts-loader": "2.0.3",

yarn.lock

@@ -1776,6 +1776,13 @@ karma-firefox-launcher@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/karma-firefox-launcher/-/karma-firefox-launcher-1.0.0.tgz#e08af3ce42e39860c2952ea7b7eaa64d63508bdc"
 
+karma-junit-reporter@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/karma-junit-reporter/-/karma-junit-reporter-1.2.0.tgz#4f9c40cedfb1a395f8aef876abf96189917c6396"
+  dependencies:
+    path-is-absolute "^1.0.0"
+    xmlbuilder "8.2.2"
+
 karma-mocha@1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/karma-mocha/-/karma-mocha-1.2.0.tgz#bca6be2a66805b847417e8d2873fd0b5b27ee7cd"
@@ -3714,6 +3721,10 @@ xdg-basedir@^2.0.0:
   dependencies:
     os-homedir "^1.0.0"
 
+xmlbuilder@8.2.2:
+  version "8.2.2"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-8.2.2.tgz#69248673410b4ba42e1a6136551d2922335aa773"
+
 xmlhttprequest-ssl@1.5.1:
   version "1.5.1"
   resolved "https://registry.yarnpkg.com/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.1.tgz#3b7741fea4a86675976e908d296d4445961faa67"