test: add test coverage

.gitignore

@@ -28,4 +28,7 @@ yarn-error.log*
 license-report.md
 
 .idea
-.eslintcache
+.eslintcache
+
+# tests coverage
+coverage

package.json

@@ -19,12 +19,13 @@
     "build": "rollup -c",
     "prepare": "run-s build && husky install",
     "test": "npx @guidesmiths/license-checker --failOn AGPL --outputFileName License-report --errorReportFileName License-error | run-s test:unit test:lint test:build",
+    "coverage": "npm run test:unit -- --coverage",
     "test:build": "run-s build",
     "test:lint": "eslint src --ext .js,.jsx --config .eslintrc --ignore-path .eslintignore --cache",
-    "eslint:fix": "eslint . --ext .js,.jsx --fix",
-    "lint": "npm run test:lint",
     "test:unit": "cross-env CI=1 react-scripts test --env=jsdom  --passWithNoTests",
     "test:watch": "react-scripts test --env=jsdom",
+    "eslint:fix": "eslint . --ext .js,.jsx --fix",
+    "lint": "npm run test:lint",
     "predeploy": "cd example && npm install && npm run build",
     "deploy": "gh-pages -d example/build",
     "release:patch": "git tag -l | xargs git tag -d && changelog -p && git add CHANGELOG.md && git commit -m 'chore: updated CHANGELOG.md' && npm version patch && git push origin && git push origin --tags",