Converted mocha unit tests to run using mocha-webpack (mochapack) package

package.json

@@ -49,6 +49,7 @@
     "beautify-lint": "^1.0.3",
     "benchmark": "^2.1.1",
     "bundle-loader": "~0.5.0",
+    "chai": "^4.2.0",
     "css-loader": "^0.28.11",
     "es6-promise-polyfill": "^1.1.1",
     "eslint": "^4.19.1",
@@ -64,6 +65,8 @@
     "lodash": "^4.17.10",
     "mini-css-extract-plugin": "^0.4.1",
     "mkdirp": "^0.5.1",
+    "mocha": "^6.1.4",
+    "mochapack": "^1.1.1",
     "node-sass": "^4.10.0",
     "raw-loader": "~0.5.0",
     "sass-loader": "^7.0.3",
@@ -108,6 +111,7 @@
     "lint:style": "stylelint ./css/*",
     "lint:typescript": "tslint --project . --exclude **/*.d.ts --format stylish src/**/*.ts utils/**/*.ts",
     "preinstall": "node ./scripts/engines-check.js",
+    "test": "mochapack --webpack-config webpack.config-test.js ./test/index.js",
     "watch": "webpack --watch --mode production",
     "watch:dev": "webpack --watch --mode development"
   },