feat(frontend): add jest

frontend/__mocks__/jest/fileMock.js

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

frontend/__mocks__/jest/server.ts

@@ -0,0 +1,3 @@
+import { setupServer } from 'msw/node';
+
+export const server = setupServer();

frontend/__mocks__/jest/wrappers/ReactQueryWrapper.tsx

@@ -0,0 +1,19 @@
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query';
+
+import type { PropsWithChildren } from 'react';
+
+export const createReactQueryWrapper = () => {
+  const queryClient = new QueryClient({
+    defaultOptions: {
+      queries: {
+        retry: false,
+      },
+    },
+  });
+
+  return ({ children }: PropsWithChildren) => (
+    <QueryClientProvider client={queryClient}>
+      {children}
+    </QueryClientProvider>
+  );
+};

frontend/__mocks__/jest/wrappers/index.ts

@@ -0,0 +1 @@
+export { createReactQueryWrapper } from './ReactQueryWrapper';

frontend/configs/jest/jest-fixed-jsdom.ts

@@ -0,0 +1,30 @@
+// eslint-disable-next-line import/no-import-module-exports
+import JSDOMEnvironment from 'jest-environment-jsdom';
+
+class FixedJSDOMEnvironment extends JSDOMEnvironment {
+  constructor(...args: unknown[]) {
+    // @ts-ignore
+    super(...args);
+
+    this.global.TextDecoder = TextDecoder;
+    this.global.TextEncoder = TextEncoder;
+    this.global.TextDecoderStream = TextDecoderStream;
+    this.global.TextEncoderStream = TextEncoderStream;
+    this.global.ReadableStream = ReadableStream;
+
+    this.global.Blob = Blob;
+    this.global.Headers = Headers;
+    // this.global.FormData = FormData;
+    this.global.Request = Request;
+    this.global.Response = Response;
+    this.global.fetch = fetch;
+    this.global.structuredClone = structuredClone;
+    this.global.URL = URL;
+    this.global.URLSearchParams = URLSearchParams;
+
+    this.global.BroadcastChannel = BroadcastChannel;
+    this.global.TransformStream = TransformStream;
+  }
+}
+
+module.exports = FixedJSDOMEnvironment;

frontend/configs/jest/setupTests.ts

@@ -0,0 +1,6 @@
+import '@testing-library/jest-dom';
+import { server } from '@mocks/jest/server';
+
+beforeAll(() => server.listen());
+afterEach(() => server.resetHandlers());
+afterAll(() => server.close());

frontend/eslint.config.ts

@@ -9,7 +9,7 @@ export default [
   {
     rules: {
       'import/no-extraneous-dependencies': ['error', {
-        devDependencies: ['eslint.config.ts', 'rsbuild.config.ts'],
+        devDependencies: ['eslint.config.ts', 'rsbuild.config.ts', 'configs/**/*'],
       }],
       'import/no-anonymous-default-export': 'off',
       'import/order': [
@@ -80,6 +80,7 @@ export default [
       '@typescript-eslint/no-unnecessary-condition': 'off',
       'jsx-a11y/click-events-have-key-events': 'off',
       'jsx-a11y/no-static-element-interactions': 'off',
+      'jsx-a11y/no-noninteractive-element-interactions': 'off',
       '@stylistic/indent': 'off',
       '@stylistic/jsx-one-expression-per-line': 'off',
     },
@@ -87,4 +88,22 @@ export default [
   {
     ignores: ['./src/shared/api/schema.ts'],
   },
+  {
+    files: [
+      '**/*.test.js',
+      '**/*.test.jsx',
+      '**/*.test.ts',
+      '**/*.test.tsx',
+      '**/__tests__/**',
+      '**/tests/**',
+    ],
+    rules: {
+      'import/no-extraneous-dependencies': [
+        'error',
+        { devDependencies: true }, // в тестах можно
+      ],
+      '@typescript-eslint/no-unsafe-call': 'off',
+      '@typescript-eslint/no-unsafe-member-access': 'off',
+    },
+  },
 ];

frontend/jest.config.ts

@@ -0,0 +1,23 @@
+import type { Config } from 'jest';
+
+export default {
+  transform: {
+    '^.+\\.(t|j)sx?$': ['@swc/jest', {
+      jsc: {
+        transform: {
+          react: {
+            runtime: 'automatic',
+          },
+        },
+      },
+    }],
+  },
+  testEnvironment: '<rootDir>/configs/jest/jest-fixed-jsdom.ts',
+  setupFilesAfterEnv: ['<rootDir>/configs/jest/setupTests.ts'],
+  moduleNameMapper: {
+    '@/(.*)': '<rootDir>/src/$1',
+    '@mocks/(.*)': '<rootDir>/__mocks__/$1',
+    '\\.(css|scss|sass|less)$': 'identity-obj-proxy',
+    '\\.(jpg|jpeg|png|gif|webp|svg)$': '<rootDir>/__mocks__/jest/fileMock.js',
+  },
+} as Config;

frontend/package.json

@@ -8,6 +8,7 @@
     "dev": "rsbuild dev",
     "preview": "rsbuild preview",
     "lint": "eslint",
+    "test:unit": "jest",
     "typecheck": "tsc --noEmit",
     "openapi:gen": "npx openapi-typescript http://localhost:3000/docs/swagger.json -o src/shared/api/schema.ts"
   },
@@ -23,13 +24,25 @@
     "@rsbuild/plugin-eslint": "1.1.2",
     "@rsbuild/plugin-react": "1.3.5",
     "@rsbuild/plugin-type-check": "1.2.4",
+    "@swc/core": "1.13.5",
+    "@swc/jest": "0.2.39",
     "@tanstack/eslint-plugin-query": "5.83.1",
+    "@testing-library/dom": "10.4.1",
+    "@testing-library/jest-dom": "6.8.0",
+    "@testing-library/react": "16.3.0",
+    "@testing-library/user-event": "14.6.1",
+    "@types/jest": "30.0.0",
     "@types/react": "19.1.9",
     "@types/react-dom": "19.1.7",
     "@typescript-eslint/parser": "8.39.0",
     "eslint": "9.34.0",
     "eslint-config-ksv741": "0.2.0",
+    "identity-obj-proxy": "3.0.0",
+    "jest": "30.1.1",
+    "jest-environment-jsdom": "30.1.1",
+    "msw": "2.10.5",
     "openapi-typescript": "7.9.1",
+    "ts-node": "10.9.2",
     "typescript": "5.9.2"
   }
 }

frontend/tsconfig.json

@@ -11,7 +11,7 @@
     "module": "ESNext",
     "moduleDetection": "force",
     "moduleResolution": "bundler",
-    "verbatimModuleSyntax": true,
+    "verbatimModuleSyntax": false,
     "resolveJsonModule": true,
     "allowImportingTsExtensions": true,
     "noUncheckedSideEffectImports": true,
@@ -21,12 +21,17 @@
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "paths": {
-      "@/*": ["./src/*"]
+      "@/*": ["./src/*"],
-    }
+      "@mocks/*": ["./__mocks__/*"]
+    },
+    "types": ["jest", "@testing-library/jest-dom"]
   },
   "include": [
     "src",
+    "__mocks__",
+    "configs",
     "eslint.config.ts",
-    "rsbuild.config.ts"
+    "rsbuild.config.ts",
+    "jest.config.ts"
   ]
 }