generate the test coverage

.gitignore

@@ -16,3 +16,4 @@ installedPlugins
 disabledPlugins
 webpackstats.json
 config/kibana.dev.yml
+coverage

package.json

@@ -38,6 +38,7 @@
     "test:quick": "grunt test:quick",
     "test:browser": "grunt test:browser",
     "test:server": "grunt test:server",
+    "test:coverage": "grunt test:coverage",
     "build": "grunt build",
     "start": "./bin/kibana --dev",
     "precommit": "grunt lintStagedFiles",
@@ -148,6 +149,7 @@
     "istanbul-instrumenter-loader": "^0.1.3",
     "karma": "^0.13.3",
     "karma-chrome-launcher": "^0.2.0",
+    "karma-coverage": "^0.5.0",
     "karma-firefox-launcher": "^0.1.6",
     "karma-growl-reporter": "^0.1.1",
     "karma-ie-launcher": "^0.2.0",

tasks/config/karma.js

@@ -40,5 +40,15 @@ module.exports = function (grunt) {
 
     dev: { singleRun: false },
     unit: { singleRun: true },
+    coverage: {
+      singleRun: true,
+      reporters: ['coverage'],
+      coverageReporter: {
+        reporters: [
+          { type: 'html', dir: 'coverage' },
+          { type: 'text-summary' },
+        ]
+      }
+    }
   };
 };

tasks/config/run.js

@@ -20,6 +20,24 @@ module.exports = function (grunt) {
       ]
     },
 
+    testCoverageServer: {
+      options: {
+        wait: false,
+        ready: /Server running/,
+        quiet: false,
+        failOnError: false
+      },
+      cmd: './bin/kibana',
+      args: [
+        '--server.port=5610',
+        '--env.name=development',
+        '--logging.json=false',
+        '--optimize.bundleFilter=tests',
+        '--plugins.initialize=false',
+        '--testsBundle.instrument=true'
+      ]
+    },
+
     devTestServer: {
       options: {
         wait: false,

tasks/test.js

@@ -2,6 +2,7 @@ var _ = require('lodash');
 module.exports = function (grunt) {
   grunt.registerTask('test:server', [ 'simplemocha:all' ]);
   grunt.registerTask('test:browser', [ 'run:testServer', 'karma:unit' ]);
+  grunt.registerTask('test:coverage', [ 'run:testCoverageServer', 'karma:coverage' ]);
 
   grunt.registerTask('test:quick', [
     'test:server',