Added test coverage collection for Jest.

Author: AlexSkrypnyk

jest.config.js

@@ -29,4 +29,7 @@ module.exports = {
     '<rootDir>/web/themes/',
     '<rootDir>/.vortex/',
   ],
+  collectCoverageFrom: ['web/modules/custom/**/js/**/*.js', '!**/*.test.js'],
+  coverageReporters: ['text', 'lcov', 'html', ['cobertura', { file: 'cobertura.xml' }]],
+  coverageDirectory: '.logs/coverage/jest',
 };

package.json

@@ -14,7 +14,7 @@
     "lint-fix-js": "eslint web/modules/custom --ext .js --no-error-on-unmatched-pattern --fix",
     "lint-fix-css": "stylelint --allow-empty-input \"web/modules/custom/**/*.css\" --fix",
     "lint-fix": "yarn run lint-fix-js && yarn run lint-fix-css",
-    "test": "jest"
+    "test": "jest --coverage"
   },
   "devDependencies": {
     "@homer0/prettier-plugin-jsdoc": "^11.0.1",