.eslintrc

@@ -1,7 +1,33 @@
 {
   "extends": "ksv741",
-  "reportUnusedDisableDirectives": true,
+  "env": {
+    "jest": true
+  },
+  "rules": {
+    "import/extensions": [
+      "error", "ignorePackages", {
+      "mjs": "never",
+      "cjs": "never",
+      "js": "never",
+      "jsx": "never"
+    }]
+  },
   "settings": {
-    "import/resolver": "webpack"
-  }
+    "import/resolver": {
+      "node": {
+        "extensions": [
+          ".mjs", ".cjs", ".js", ".json", ".jsx"
+        ]
+      }
+    },
+    "import/extensions": [
+      ".mjs", ".cjs", ".js", ".json", ".jsx"
+    ]
+  },
+  "overrides": [
+    {
+      "files": ["**/__tests__/**/*.[jt]s?(x)", "**/?(*.)+(spec|test).[jt]s?(x)"],
+      "extends": ["./configs/jest/jest-eslint.config.js"]
+    }
+  ]
 }

.gitlab-ci.yml

@@ -12,7 +12,7 @@ cache:
 install-dependencies:
   stage: preparing
   script:
-    - yarn install
+    - yarn install --offline
 
 lint:
   stage: checking
@@ -26,7 +26,7 @@ lint:
 test:
   stage: checking
   script:
-    - yarn run test:start
+    - yarn run test
   only:
     - merge_requests
 

.nvmrc

@@ -1 +0,0 @@
-20.11.1

.yarnrc

@@ -0,0 +1 @@
+yarn-offline-mirror "./offline_node_modules"

.yarnrc.yml

@@ -1,7 +0,0 @@
-cacheFolder: ./offline_node_modules
-
-enableGlobalCache: false
-
-nodeLinker: node-modules
-
-yarnPath: .yarn/releases/yarn-4.1.1.cjs

configs/jest/__mocks__/fileMock.js

@@ -1 +0,0 @@
-module.exports = 'test-file-stub';

configs/jest/jest-eslint.config.js

@@ -0,0 +1,14 @@
+module.exports = {
+  plugins: [
+    'jest',
+    'jest-dom',
+    'jest-formatting',
+    'testing-library',
+  ],
+  extends: [
+    'plugin:jest/recommended',
+    'plugin:jest-dom/recommended',
+    'plugin:jest-formatting/recommended',
+    'plugin:testing-library/react',
+  ],
+};

configs/jest/jest.config.js

@@ -0,0 +1,12 @@
+const path = require('path');
+
+module.exports = {
+  testEnvironment: 'jsdom',
+  rootDir: '../../',
+  transform: {
+    '\\.jsx?$': ['babel-jest', {
+      configFile: path.resolve(__dirname, 'babel-jest.config.js'),
+    }],
+  },
+  setupFilesAfterEnv: [path.resolve(__dirname, 'setupTests.js')],
+};

jest.config.js

@@ -6,10 +6,4 @@ module.exports = {
     }],
   },
   setupFilesAfterEnv: ['./configs/jest/setupTests.js'],
-  modulePaths: ['src'],
-  moduleNameMapper: {
-    '\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$':
-      './configs/jest/__mocks__/fileMock.js',
-    '\\.(css|less|scss)$': 'identity-obj-proxy',
-  },
 };