chore(jest): fix coverage reporter (#1861)

Author: hiroppy

jest.config.js

@@ -2,7 +2,7 @@
 
 module.exports = {
   testURL: 'http://localhost/',
-  collectCoverage: true,
+  collectCoverage: false,
   coveragePathIgnorePatterns: ['test'],
   moduleFileExtensions: ['js', 'json'],
   testMatch: ['**/test/**/*.test.js'],

package.json

@@ -17,10 +17,10 @@
     "lint": "eslint bin lib test examples client-src",
     "pretty": "prettier --loglevel warn --write \"**/*.{js,css,md,json,yml}\"",
     "test:only": "jest --runInBand",
-    "test:watch": "jest --watch --runInBand",
-    "test:coverage": "jest --runInBand --collectCoverageFrom='src/**/*.js' --coverage",
-    "pretest": "npm run lint",
+    "test:coverage": "npm run test:only -- --coverage",
+    "test:watch": "npm run test:coverage --watch",
     "test": "npm run test:coverage",
+    "pretest": "npm run lint",
     "prepare": "rimraf ./ssl/*.pem && npm run -s transpile:index && npm run -s build:live && npm run -s build:index && npm run -s build:sockjs",
     "transpile:index": "babel client-src/default --out-dir client --ignore *.config.js",
     "build:index": "webpack ./client-src/default/index.js -o client/index.bundle.js --color --config client-src/default/webpack.config.js",