make coverage generation optional

src/plugins/testsBundle/index.js

@@ -6,10 +6,17 @@ module.exports = (kibana) => {
   let findSourceFiles = utils('findSourceFiles');
 
   return new kibana.Plugin({
+    config: (Joi) => {
+      return Joi.object({
+        enabled: Joi.boolean().default(true),
+        instrument: Joi.boolean().default(false)
+      }).default();
+    },
+
     uiExports: {
       bundle: async (UiBundle, env, apps) => {
-
         let modules = [];
+        let config = kibana.config;
 
         // add the modules from all of the apps
         for (let app of apps) {
@@ -23,11 +30,13 @@ module.exports = (kibana) => {
 
         for (let f of testFiles) modules.push(f);
 
-        env.addPostLoader({
-          test: /\.jsx?$/,
-          exclude: /[\/\\](__tests__|node_modules|bower_components|webpackShims)[\/\\]/,
-          loader: 'istanbul-instrumenter'
-        });
+        if (config.get('testsBundle.instrument')) {
+          env.addPostLoader({
+            test: /\.jsx?$/,
+            exclude: /[\/\\](__tests__|node_modules|bower_components|webpackShims)[\/\\]/,
+            loader: 'istanbul-instrumenter'
+          });
+        }
 
         return new UiBundle({
           id: 'tests',

src/plugins/testsBundle/package.json

@@ -1,4 +1,4 @@
 {
-  "name": "tests_bundle",
+  "name": "testsBundle",
   "version": "0.0.0"
 }