build: configure jest

.eslintrc

@@ -1,33 +1,7 @@
 {
   "extends": "ksv741",
-  "env": {
-    "jest": true
-  },
-  "rules": {
-    "import/extensions": [
-      "error", "ignorePackages", {
-      "mjs": "never",
-      "cjs": "never",
-      "js": "never",
-      "jsx": "never"
-    }]
-  },
+  "reportUnusedDisableDirectives": true,
   "settings": {
-    "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"]
-    }
-  ]
+    "import/resolver": "webpack"
+  }
 }

.gitlab-ci.yml

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

.nvmrc

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

.yarnrc

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

.yarnrc.yml

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

configs/jest/__mocks__/fileMock.js

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

configs/jest/jest-eslint.config.js

@@ -1,14 +0,0 @@
-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

@@ -1,12 +0,0 @@
-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

@@ -6,4 +6,10 @@ 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',
+  },
 };