feat: comprehensive testing infrastructure

- Add vitest with solid plugin, coverage, jsdom environment
- Create MSW mocks for API responses in test setup
- Add unit test for ProfessionAdminListPage
- Add Playwright accessibility and visual regression configs
- Add sample accessibility and visual tests
- Add ESLint + Prettier configs with SolidJS rules
- Update scripts: test, test:coverage, test:accessibility, test:visual
- Add .gitignore entries for coverage, test-results, playwright-report, .vitest
- Install required dev dependencies: vitest, @solidjs/testing-library, msw, eslint, prettier, typescript, @axe-core/playwright, etc.
- Create .github/workflows/ci.yml with lint, test, coverage, e2e, accessibility, visual checks

This sets up full testing pipeline for admin frontend.

.eslintrc.cjs

@@ -0,0 +1,68 @@
+/* eslint-env node */
+require("@typescript-eslint/eslint-recommended");
+require("@typescript-eslint/parser");
+require("eslint-plugin-solid");
+
+module.exports = {
+  root: true,
+  parser: "@typescript-eslint/parser",
+  plugins: ["solid"],
+  extends: [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:solid/recommended",
+  ],
+  overrides: [
+    {
+      files: ["**/*.tsx"],
+      parserOptions: {
+        ecmaFeatures: {
+          jsx: true,
+        },
+      },
+      settings: {
+        solid: {
+          // SolidJS specific options
+          noImportReact: true,
+        },
+      },
+      rules: {
+        "solid/hyperscript": "off",
+        "solid/jsx-no-undef": "error",
+        "solid/jsx-pseudo-element": "error",
+        "solid/jsx-single-root-elem": "error",
+        "solid/no-dynamic-mount": "error",
+        "solid/no-hyphen-in-props": "error",
+        "solid/no-leaked-event-handlers": "error",
+        "solid/no-react-unknown-property": "error",
+        "solid/no-unknown-property": "error",
+        "solid/no-useless-fragment": "error",
+        "solid/prefer-classlist": "error",
+        "solid/prefer-destructuring": "warn",
+        "solid/prefer-innerhtml": "warn",
+      },
+    },
+  ],
+  rules: {
+    "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/no-unused-vars": ["warn", { argsIgnorePattern: "^_" }],
+    "@typescript-eslint/no-explicit-any": "warn",
+    "arrow-body-style": ["warn", "as-needed"],
+    " curly": ["error", "multi-line"],
+    "no-console": "off",
+    "no-debugger": "warn",
+    "no-unused-vars": "off",
+    "prefer-const": "error",
+  },
+  env: {
+    browser: true,
+  },
+  ignorePatterns: [
+    "dist",
+    ".output",
+    "node_modules",
+    "coverage",
+    "test-results",
+    "playwright-report",
+  ],
+};

.github/workflows/ci.yml

@@ -0,0 +1,91 @@
+name: Admin Frontend CI
+
+on:
+  pull_request:
+    branches: [high-performance]
+  push:
+    branches: [high-performance]
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "npm"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run ESLint
+        run: npx eslint . --ext .ts,.tsx
+
+      - name: Check Prettier formatting
+        run: npx prettier --check .
+
+      - name: TypeScript type check
+        run: npx tsc --noEmit
+
+      - name: Run Vitest unit tests
+        run: npm run test:coverage
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          files: coverage/lcov.info
+          fail_ci_if_error: false
+
+      - name: Build application
+        run: npm run build
+        env:
+          NODE_ENV: production
+
+  e2e-tests:
+    runs-on: ubuntu-latest
+    needs: lint-and-test
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: "npm"
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build app for E2E
+        run: npm run build
+        env:
+          NODE_ENV: production
+
+      - name: Start server (preview)
+        run: npm run start:3000 &
+        env:
+          HOST: 0.0.0.0
+          PORT: 3000
+
+      - name: Wait for server
+        run: npx wait-on http://localhost:3000
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+
+      - name: Run Playwright accessibility tests
+        run: npm run test:accessibility
+
+      - name: Run Playwright visual regression
+        run: npm run test:visual
+
+      - name: Upload Playwright report
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: playwright-report-admin
+          path: playwright-report/
+          retention-days: 14

.gitignore

@@ -32,3 +32,5 @@ storybook-static
 playwright-report
 test-results
 tests/visual-artifacts
+coverage
+.vitest

.prettierrc

@@ -0,0 +1,10 @@
+{
+  "semi": true,
+  "singleQuote": false,
+  "tabWidth": 2,
+  "trailingComma": "es5",
+  "useTabs": false,
+  "printWidth": 100,
+  "arrowParens": "always",
+  "endOfLine": "lf"
+}

package.json

@@ -10,7 +10,9 @@
     "admin:stop:3000": "bash ./scripts/admin-3000-service.sh stop",
     "admin:status:3000": "bash ./scripts/admin-3000-service.sh status",
     "admin:start:3000": "bash ./scripts/admin-3000-service.sh start",
-    "test": "node --test --experimental-strip-types src/lib/**/*.test.ts",
+    "test": "vitest run",
+    "test:watch": "vitest",
+    "test:coverage": "vitest run --coverage",
     "test:e2e": "playwright test",
     "test:e2e:headed": "playwright test --headed",
     "test:visual": "playwright test tests/e2e/admin-visual.spec.ts --reporter=list --workers=1",
@@ -19,7 +21,8 @@
     "test:external:flow": "playwright test -c playwright.external.config.ts tests/e2e/external-user-flow.spec.ts --reporter=list --workers=1",
     "test:external:roles": "playwright test -c playwright.external.config.ts tests/e2e/external-roles-onboarding-dashboard.spec.ts --reporter=list --workers=1",
     "test:external:screenshots": "playwright test -c playwright.external.config.ts tests/e2e/external-role-screenshots.spec.ts --reporter=list --workers=1",
-    "test:vitest": "vitest run",
+    "test:accessibility": "playwright test --config=playwright.a11y.config.ts",
+    "test:visual:regression": "playwright test --config=playwright.visual.config.ts",
     "storybook": "storybook dev -p 6006",
     "build-storybook": "storybook build",
     "qa:visbug": "bash ./scripts/visbug-storybook.sh",
@@ -41,19 +44,26 @@
     "node": ">=20"
   },
   "devDependencies": {
+    "@axe-core/playwright": "^1.7.0",
     "@chromatic-com/storybook": "^5.1.0",
     "@playwright/test": "^1.58.2",
+    "@solidjs/testing-library": "^0.8.0",
     "@storybook/addon-a11y": "^10.3.3",
     "@storybook/addon-docs": "^10.3.3",
     "@storybook/addon-vitest": "^10.3.3",
+    "@testing-library/jest-dom": "^6.6.3",
     "@vitest/browser-playwright": "^4.1.1",
     "@vitest/coverage-v8": "^4.1.1",
+    "jsdom": "^25.0.1",
+    "msw": "^2.7.3",
     "pixelmatch": "^7.1.0",
     "playwright": "^1.58.2",
     "pngjs": "^7.0.0",
     "storybook": "^10.3.3",
     "storybook-solidjs-vite": "^10.0.11",
     "visbug": "^0.1.14",
-    "vitest": "^4.1.1"
+    "vitest": "^4.1.1",
+    "vitest-plugin-solid": "^0.2.0",
+    "typescript": "^5.5.0"
   }
 }

playwright.a11y.config.ts

@@ -0,0 +1,23 @@
+import { defineConfig, devices } from "@playwright/test";
+
+export default defineConfig({
+  testDir: "./tests/e2e",
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 4 : undefined,
+  reporter: "html",
+  use: {
+    baseURL: "http://localhost:3000",
+    trace: "on-first-retry",
+    screenshot: "on",
+  },
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+  ],
+  // Run accessibility tests
+  // Use `npx playwright test --config=playwright.a11y.config.ts`
+});

playwright.visual.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig, devices } from "@playwright/test";
+
+export default defineConfig({
+  testDir: "./tests/e2e/visual",
+  fullyParallel: true,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 4 : undefined,
+  reporter: "list",
+  use: {
+    baseURL: "http://localhost:3000",
+    screenshot: "only-on-failure",
+    trace: "on-first-retry",
+  },
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+  ],
+});

src/test/setup.ts

@@ -0,0 +1,64 @@
+import '@testing-library/jest-dom';
+import { beforeAll, afterEach, afterAll } from 'vitest';
+import { setupServer } from 'msw/node';
+import { rest } from 'msw';
+
+// Mock API responses globally for frontend tests
+const server = setupServer(
+  rest.get('/api/admin/companies', (req, res, ctx) => {
+    return res.once(200, ctx.json([
+      { id: '1', company_name: 'Test Co', status: 'ACTIVE' }
+    ]));
+  }),
+  rest.get('/api/admin/users', (req, res, ctx) => {
+    return res.once(200, ctx.json([
+      { id: '1', full_name: 'Admin User', email: 'admin@example.com', status: 'ACTIVE' }
+    ]));
+  }),
+  rest.get('/api/admin/jobs', (req, res, ctx) => {
+    return res.once(200, ctx.json([
+      { id: '1', title: 'Developer', status: 'OPEN' }
+    ]));
+  }),
+  rest.get('/api/admin/leads', (req, res, ctx) => {
+    return res.once(200, ctx.json([
+      { id: '1', title: 'Need a developer', status: 'PENDING' }
+    ]));
+  })
+);
+
+beforeAll(() => server.listen());
+afterEach(() => server.resetHandlers());
+afterAll(() => server.close());
+
+// Mock window.matchMedia
+Object.defineProperty(window, 'matchMedia', {
+  writable: true,
+  value: vi.fn().mockImplementation(query => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: vi.fn(),
+    removeListener: vi.fn(),
+    addEventListener: vi.fn(),
+    removeEventListener: vi.fn(),
+    dispatchEvent: vi.fn(),
+  })),
+});
+
+// Mock IntersectionObserver
+global.IntersectionObserver = class IntersectionObserver {
+  constructor() {}
+  disconnect() {}
+  observe() {}
+  takeRecords() { return []; }
+  trigger() {}
+};
+
+// Mock ResizeObserver
+global.ResizeObserver = class ResizeObserver {
+  constructor() {}
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+};

tests/e2e/accessibility.spec.ts

@@ -0,0 +1,21 @@
+import { test, expect } from "@playwright/test";
+import AxeBuilder from "@axe-core/playwright";
+
+test.describe("Accessibility Tests", () => {
+  test("login page should have no accessibility violations", async ({ page }) => {
+    await page.goto("/admin/login");
+    const results = await new AxeBuilder({ page }).analyze();
+    expect(results.violations).toEqual([]);
+  });
+
+  test("dashboard page should be accessible after login", async ({ page }) => {
+    // Mock login (or use real credentials via env)
+    await page.goto("/admin/login");
+    await page.fill('input[type="email"]', "admin@example.com");
+    await page.fill('input[type="password"]', "password");
+    await page.click('button[type="submit"]');
+    await expect(page).toHaveURL("/admin");
+    const results = await new AxeBuilder({ page }).analyze();
+    expect(results.violations).toEqual([]);
+  });
+});

tests/e2e/visual/pages.spec.ts

@@ -0,0 +1,16 @@
+import { test, expect } from "@playwright/test";
+
+test.describe("Visual Regression - Admin Pages", () => {
+  test("company management page should match baseline", async ({ page }) => {
+    await page.goto("/admin/company");
+    // Wait for table to load
+    await expect(page.locator("table")).toBeVisible({ timeout: 10000 });
+    await expect(page).toHaveScreenshot({ maxDiffPixelRatio: 0.1 });
+  });
+
+  test("jobs management page should match baseline", async ({ page }) => {
+    await page.goto("/admin/jobs");
+    await expect(page.locator("table")).toBeVisible({ timeout: 10000 });
+    await expect(page).toHaveScreenshot({ maxDiffPixelRatio: 0.1 });
+  });
+});

tests/vitest/components/ProfessionAdminListPage.test.tsx

@@ -0,0 +1,182 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+import { render, screen, fireEvent, waitFor } from "@solidjs/testing-library";
+import { createSignal } from "solid-js";
+import ProfessionAdminListPage from "~/components/admin/ProfessionAdminListPage";
+
+// Mock fetch globally
+const mockFetch = vi.fn();
+global.fetch = mockFetch;
+
+describe("ProfessionAdminListPage", () => {
+  beforeEach(() => {
+    mockFetch.mockClear();
+  });
+
+  it("renders page title and subtitle", async () => {
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      json: async () => [
+        {
+          id: "1",
+          first_name: "John",
+          last_name: "Doe",
+          email: "john@example.com",
+          phone: "1234567890",
+          status: "ACTIVE",
+          created_at: "2024-01-01T00:00:00Z",
+        },
+      ],
+    });
+
+    render(() =>
+      ProfessionAdminListPage({
+        endpoint: "/api/admin/test",
+        title: "Test Management",
+        subtitle: "Manage test records",
+        emptyLabel: "No test records found.",
+        viewHref: (id) => `/admin/test/${id}`,
+      })
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText("Test Management")).toBeInTheDocument();
+      expect(screen.getByText("Manage test records")).toBeInTheDocument();
+    });
+  });
+
+  it("filters by search query", async () => {
+    const mockData = [
+      {
+        id: "1",
+        first_name: "Alice",
+        last_name: "Smith",
+        email: "alice@example.com",
+        phone: "",
+        status: "ACTIVE",
+        created_at: "2024-01-01T00:00:00Z",
+      },
+      {
+        id: "2",
+        first_name: "Bob",
+        last_name: "Jones",
+        email: "bob@example.com",
+        phone: "",
+        status: "INACTIVE",
+        created_at: "2024-01-02T00:00:00Z",
+      },
+    ];
+
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      json: async () => mockData,
+    });
+
+    render(() =>
+      ProfessionAdminListPage({
+        endpoint: "/api/admin/test",
+        title: "Test",
+        subtitle: "",
+        emptyLabel: "Empty",
+        viewHref: (id) => `/admin/test/${id}`,
+      })
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText("Alice Smith")).toBeInTheDocument();
+      expect(screen.getByText("Bob Jones")).toBeInTheDocument();
+    });
+
+    const input = screen.getByPlaceholderText("Search by name or email...");
+    fireEvent.input(input, { target: { value: "alice" } });
+
+    await waitFor(() => {
+      expect(screen.getByText("Alice Smith")).toBeInTheDocument();
+      expect(screen.queryByText("Bob Jones")).not.toBeInTheDocument();
+    });
+  });
+
+  it("shows empty state when no data", async () => {
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      json: async () => [],
+    });
+
+    render(() =>
+      ProfessionAdminListPage({
+        endpoint: "/api/admin/test",
+        title: "Test",
+        subtitle: "",
+        emptyLabel: "No records.",
+        viewHref: (id) => `/admin/test/${id}`,
+      })
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText("No records.")).toBeInTheDocument();
+    });
+  });
+
+  it("handles fetch error gracefully", async () => {
+    mockFetch.mockResolvedValueOnce({
+      ok: false,
+      status: 500,
+    });
+
+    render(() =>
+      ProfessionAdminListPage({
+        endpoint: "/api/admin/test",
+        title: "Test",
+        subtitle: "",
+        emptyLabel: "Empty",
+        viewHref: (id) => `/admin/test/${id}`,
+      })
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText(/Failed to load/)).toBeInTheDocument();
+    });
+  });
+
+  it("export button calls exportCsv and downloads file", async () => {
+    const mockData = [
+      {
+        id: "1",
+        first_name: "Alice",
+        last_name: "Smith",
+        email: "alice@example.com",
+        phone: "123",
+        status: "ACTIVE",
+        created_at: "2024-01-01T00:00:00Z",
+      },
+    ];
+
+    mockFetch.mockResolvedValueOnce({
+      ok: true,
+      json: async () => mockData,
+    });
+
+    // Mock URL.createObjectURL and link.click
+    const mockClick = vi.fn();
+    global.URL.createObjectURL = vi.fn(() => "blob:test");
+    global.document.createElement = vi.fn(() => ({ click: mockClick, href: "" }));
+
+    render(() =>
+      ProfessionAdminListPage({
+        endpoint: "/api/admin/test",
+        title: "Test",
+        subtitle: "",
+        emptyLabel: "Empty",
+        viewHref: (id) => `/admin/test/${id}`,
+      })
+    );
+
+    await waitFor(() => {
+      expect(screen.getByText("Alice Smith")).toBeInTheDocument();
+    });
+
+    const exportBtn = screen.getByText("Export");
+    fireEvent.click(exportBtn);
+
+    expect(mockClick).toHaveBeenCalled();
+  });
+});

vitest.config.ts

@@ -1,13 +1,18 @@
 import { defineConfig } from 'vitest/config';
+import solid from 'vitest-plugin-solid';
 
 export default defineConfig({
+  plugins: [solid()],
   test: {
-    include: ['tests/vitest/**/*.spec.ts'],
-    environment: 'node',
+    globals: true,
+    environment: 'jsdom',
+    setupFiles: ['./src/test/setup.ts'],
+    include: ['src/**/*.{test,spec}.{js,mjs,ts,tsx}', 'tests/vitest/**/*.spec.ts'],
     coverage: {
       provider: 'v8',
-      reporter: ['text', 'html'],
+      reporter: ['text', 'json', 'html', 'lcov'],
       reportsDirectory: './test-results/vitest-coverage',
+      exclude: ['node_modules', 'dist', '.output', '**/*.d.ts'],
     },
   },
 });