diff --git a/e2e/auth/login.spec.ts b/e2e/auth/login.spec.ts
new file mode 100644
index 00000000..acd6de68
--- /dev/null
+++ b/e2e/auth/login.spec.ts
@@ -0,0 +1,98 @@
+import { expect, test, type Page } from "@playwright/test";
+
+const TEST_USER = {
+  id: 1,
+  email: "user@seahavenind.com",
+  name: "Test User",
+};
+
+async function mockUnauthenticatedSession(page: Page) {
+  await page.route("**/api/Authentication/GetCurrentUser", async (route) => {
+    await route.fulfill({
+      status: 401,
+      contentType: "application/json",
+      body: JSON.stringify({ message: "Unauthorized" }),
+    });
+  });
+}
+
+async function mockDashboardStats(page: Page) {
+  await page.route("**/api/Dashboard/Stats", async (route) => {
+    await route.fulfill({
+      status: 200,
+      contentType: "application/json",
+      body: JSON.stringify({
+        data: {
+          openWorkOrders: 0,
+          pendingApprovals: 0,
+          scheduledPMs: 0,
+          activeAssets: 0,
+        },
+      }),
+    });
+  });
+}
+
+test.describe("Login page", () => {
+  test.beforeEach(async ({ page }) => {
+    await mockUnauthenticatedSession(page);
+    await mockDashboardStats(page);
+  });
+
+  test("loads login page with form fields", async ({ page }) => {
+    await page.goto("/login");
+
+    await expect(page.getByRole("heading", { name: "Welcome back" })).toBeVisible();
+    await expect(page.locator("#login-email")).toBeVisible();
+    await expect(page.locator("#login-password")).toBeVisible();
+    await expect(page.getByRole("button", { name: "Sign In" })).toBeVisible();
+  });
+
+  test("shows client-side validation errors on empty submit", async ({ page }) => {
+    await page.goto("/login");
+
+    await page.getByRole("button", { name: "Sign In" }).click();
+
+    await expect(page.getByText("Email is required")).toBeVisible();
+    await expect(page.getByText("Password is required")).toBeVisible();
+  });
+
+  test("shows error message for invalid credentials", async ({ page }) => {
+    await page.route("**/api/Authentication/Login", async (route) => {
+      await route.fulfill({
+        status: 401,
+        contentType: "application/json",
+        body: JSON.stringify({ message: "Invalid credentials" }),
+      });
+    });
+
+    await page.goto("/login");
+
+    await page.locator("#login-email").fill("user@seahavenind.com");
+    await page.locator("#login-password").fill("wrong-password");
+    await page.getByRole("button", { name: "Sign In" }).click();
+
+    await expect(page.getByText("Invalid email or password. Please try again.")).toBeVisible();
+    await expect(page).toHaveURL(/\/login$/);
+  });
+
+  test("logs in successfully and navigates to dashboard", async ({ page }) => {
+    await page.route("**/api/Authentication/Login", async (route) => {
+      await route.fulfill({
+        status: 200,
+        contentType: "application/json",
+        body: JSON.stringify({ data: TEST_USER }),
+      });
+    });
+
+    await page.goto("/login");
+
+    await page.locator("#login-email").fill("user@seahavenind.com");
+    await page.locator("#login-password").fill("secret123");
+    await page.getByRole("button", { name: "Sign In" }).click();
+
+    await expect(page).toHaveURL(/\/$/);
+    await expect(page.getByRole("heading", { name: "Dashboard" })).toBeVisible();
+    await expect(page.getByRole("heading", { name: "Welcome back" })).not.toBeVisible();
+  });
+});
diff --git a/playwright.config.ts b/playwright.config.ts
new file mode 100644
index 00000000..be2a106f
--- /dev/null
+++ b/playwright.config.ts
@@ -0,0 +1,26 @@
+import { defineConfig, devices } from "@playwright/test";
+
+export default defineConfig({
+  testDir: "./e2e",
+  fullyParallel: true,
+  forbidOnly: Boolean(process.env.CI),
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 1 : undefined,
+  reporter: process.env.CI ? "github" : "list",
+  use: {
+    baseURL: "http://localhost:3000",
+    trace: "on-first-retry",
+  },
+  projects: [
+    {
+      name: "chromium",
+      use: { ...devices["Desktop Chrome"] },
+    },
+  ],
+  webServer: {
+    command: "npm run dev",
+    url: "http://localhost:3000",
+    reuseExistingServer: !process.env.CI,
+    timeout: 120_000,
+  },
+});
diff --git a/src/test/api/handle-api-response.test.ts b/src/test/api/handle-api-response.test.ts
new file mode 100644
index 00000000..520c03f7
--- /dev/null
+++ b/src/test/api/handle-api-response.test.ts
@@ -0,0 +1,50 @@
+import { describe, expect, it } from "vitest";
+import { handleApiResponse, handlePaginatedResponse } from "@/api/handle-api-response";
+
+describe("handleApiResponse", () => {
+  it("returns array payloads as-is", () => {
+    const items = [{ id: 1 }, { id: 2 }];
+    expect(handleApiResponse<typeof items>(items)).toEqual(items);
+  });
+
+  it("unwraps data, Data, and value wrappers", () => {
+    expect(handleApiResponse<{ id: number }>({ data: { id: 1 } })).toEqual({ id: 1 });
+    expect(handleApiResponse<{ id: number }>({ Data: { id: 2 } })).toEqual({ id: 2 });
+    expect(handleApiResponse<{ id: number }>({ value: { id: 3 } })).toEqual({ id: 3 });
+  });
+
+  it("returns object payload when no wrapper is present", () => {
+    const payload = { id: 99, name: "Test" };
+    expect(handleApiResponse(payload)).toEqual(payload);
+  });
+});
+
+describe("handlePaginatedResponse", () => {
+  it("normalizes paginated ASP.NET payload", () => {
+    const result = handlePaginatedResponse<{ id: number }>(
+      {
+        Data: [{ id: 1 }, { id: 2 }],
+        TotalCount: 50,
+        PageNumber: 2,
+        PageSize: 25,
+      },
+      { page: 2, pageSize: 25 },
+    );
+
+    expect(result).toEqual({
+      items: [{ id: 1 }, { id: 2 }],
+      totalCount: 50,
+      page: 2,
+      pageSize: 25,
+    });
+  });
+
+  it("handles plain arrays", () => {
+    const result = handlePaginatedResponse([{ id: 1 }], { page: 1, pageSize: 10 });
+
+    expect(result.items).toEqual([{ id: 1 }]);
+    expect(result.totalCount).toBe(1);
+    expect(result.page).toBe(1);
+    expect(result.pageSize).toBe(10);
+  });
+});
diff --git a/src/test/app/(auth)/_components/login-form.test.tsx b/src/test/app/(auth)/_components/login-form.test.tsx
new file mode 100644
index 00000000..aab67e49
--- /dev/null
+++ b/src/test/app/(auth)/_components/login-form.test.tsx
@@ -0,0 +1,143 @@
+import { zodResolver } from "@hookform/resolvers/zod";
+import { fireEvent, screen, waitFor, within } from "@testing-library/react";
+import { useForm, type UseFormHandleSubmit } from "react-hook-form";
+import { describe, expect, it, vi } from "vitest";
+
+import { LoginForm, type LoginFormProps } from "@/app/(auth)/_components/login-form";
+import { loginSchema, type LoginFormValues } from "@/domain/auth/schemas/login-schema";
+import { renderWithProviders } from "@/test/test-utils";
+
+function createMockHandleSubmit(): UseFormHandleSubmit<LoginFormValues> {
+  return (onValid) => async (event) => {
+    event?.preventDefault?.();
+    await onValid({ username: "", password: "" });
+  };
+}
+
+type LoginFormHarnessProps = {
+  onSubmit?: (values: LoginFormValues) => void;
+  isLoggingIn?: boolean;
+  loginError?: Error | null;
+};
+
+function LoginFormHarness({
+  onSubmit = vi.fn(),
+  isLoggingIn = false,
+  loginError = null,
+}: LoginFormHarnessProps) {
+  const {
+    register,
+    handleSubmit,
+    formState: { errors },
+  } = useForm<LoginFormValues>({
+    resolver: zodResolver(loginSchema),
+    defaultValues: { username: "", password: "" },
+  });
+
+  return (
+    <LoginForm
+      register={register}
+      handleSubmit={handleSubmit}
+      errors={errors}
+      onSubmit={onSubmit}
+      isLoggingIn={isLoggingIn}
+      loginError={loginError}
+    />
+  );
+}
+
+describe("LoginForm", () => {
+  it("renders email, password, and submit button", () => {
+    renderWithProviders(<LoginFormHarness />, { withAuth: false });
+
+    expect(screen.getByLabelText("Email")).toBeInTheDocument();
+    expect(screen.getByLabelText("Password")).toBeInTheDocument();
+    expect(screen.getByRole("button", { name: /sign in/i })).toBeInTheDocument();
+    expect(screen.getByPlaceholderText("you@seahavenind.com")).toBeInTheDocument();
+    expect(screen.getByPlaceholderText("••••••••")).toBeInTheDocument();
+  });
+
+  it("displays field validation helper text", () => {
+    renderWithProviders(
+      <LoginForm
+        register={vi.fn()}
+        handleSubmit={createMockHandleSubmit()}
+        errors={{
+          username: { type: "required", message: "Email is required" },
+          password: { type: "required", message: "Password is required" },
+        }}
+        onSubmit={vi.fn()}
+        isLoggingIn={false}
+        loginError={null}
+      />,
+      { withAuth: false },
+    );
+
+    expect(screen.getByText("Email is required")).toBeInTheDocument();
+    expect(screen.getByText("Password is required")).toBeInTheDocument();
+  });
+
+  it("shows API login error message", () => {
+    renderWithProviders(<LoginFormHarness loginError={new Error("Invalid credentials")} />, {
+      withAuth: false,
+    });
+
+    expect(screen.getByText("Invalid email or password. Please try again.")).toBeInTheDocument();
+  });
+
+  it("disables fields and shows loading state while logging in", () => {
+    const register = (name: "username" | "password") => ({
+      name,
+      onChange: vi.fn(),
+      onBlur: vi.fn(),
+      ref: vi.fn(),
+    });
+
+    renderWithProviders(
+      <LoginForm
+        register={register as LoginFormProps["register"]}
+        handleSubmit={createMockHandleSubmit()}
+        errors={{}}
+        onSubmit={vi.fn()}
+        isLoggingIn
+        loginError={null}
+      />,
+      { withAuth: false },
+    );
+
+    const form = document.querySelector("form");
+    expect(form).not.toBeNull();
+
+    expect(within(form!).getByLabelText("Email").closest(".MuiInputBase-root")).toHaveClass(
+      "Mui-disabled",
+    );
+    expect(within(form!).getByLabelText("Password").closest(".MuiInputBase-root")).toHaveClass(
+      "Mui-disabled",
+    );
+    expect(within(form!).getByRole("button", { name: /signing in/i })).toBeDisabled();
+  });
+
+  it("submits credentials via onSubmit", async () => {
+    const onSubmit = vi.fn();
+
+    renderWithProviders(<LoginFormHarness onSubmit={onSubmit} />, { withAuth: false });
+
+    const form = document.querySelector("form");
+    expect(form).not.toBeNull();
+
+    fireEvent.change(within(form!).getByLabelText("Email"), {
+      target: { value: "user@seahavenind.com" },
+    });
+    fireEvent.change(within(form!).getByLabelText("Password"), {
+      target: { value: "secret123" },
+    });
+    fireEvent.click(within(form!).getByRole("button", { name: /sign in/i }));
+
+    await waitFor(() => {
+      expect(onSubmit).toHaveBeenCalledWith(
+        { username: "user@seahavenind.com", password: "secret123" },
+        expect.anything(),
+      );
+    });
+  });
+});
diff --git a/src/test/app/(auth)/login.integration.test.tsx b/src/test/app/(auth)/login.integration.test.tsx
new file mode 100644
index 00000000..c2384ea9
--- /dev/null
+++ b/src/test/app/(auth)/login.integration.test.tsx
@@ -0,0 +1,151 @@
+import { screen, waitFor, within } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { Route, Routes } from "react-router-dom";
+import { beforeEach, describe, expect, it, vi } from "vitest";
+
+import LoginPage from "@/app/(auth)/login";
+import * as authApi from "@/domain/auth/api/auth-api";
+import { renderWithProviders } from "@/test/test-utils";
+
+const { toastSuccessMock } = vi.hoisted(() => ({
+  toastSuccessMock: vi.fn(),
+}));
+
+vi.mock("@/domain/auth/api/auth-api", () => ({
+  getSession: vi.fn(),
+  login: vi.fn(),
+  logout: vi.fn(),
+  changePassword: vi.fn(),
+}));
+
+vi.mock("react-toastify", () => ({
+  toast: {
+    success: toastSuccessMock,
+    error: vi.fn(),
+    info: vi.fn(),
+  },
+}));
+
+function LoginRoutes() {
+  return (
+    <Routes>
+      <Route path="/login" element={<LoginPage />} />
+      <Route path="/" element={<div data-testid="dashboard">Dashboard</div>} />
+    </Routes>
+  );
+}
+
+describe("LoginPage integration", () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    vi.mocked(authApi.getSession).mockResolvedValue(null);
+  });
+
+  it("shows validation errors on empty submit", async () => {
+    renderWithProviders(<LoginRoutes />, { route: "/login" });
+
+    await waitFor(() => {
+      expect(screen.getByRole("heading", { name: "Welcome back" })).toBeInTheDocument();
+    });
+
+    const form = document.querySelector("form");
+    expect(form).not.toBeNull();
+    await userEvent.click(within(form!).getByRole("button", { name: /sign in/i }));
+
+    await waitFor(() => {
+      expect(screen.getByText("Email is required")).toBeInTheDocument();
+    });
+    expect(screen.getByText("Password is required")).toBeInTheDocument();
+    expect(screen.getByRole("heading", { name: "Welcome back" })).toBeInTheDocument();
+    expect(authApi.login).not.toHaveBeenCalled();
+  });
+
+  it("logs in successfully and navigates to dashboard", async () => {
+    const userPayload = { id: 1, email: "user@seahavenind.com" };
+
+    vi.mocked(authApi.login).mockResolvedValue(userPayload);
+    vi.mocked(authApi.getSession).mockResolvedValue(userPayload);
+
+    renderWithProviders(<LoginRoutes />, { route: "/login" });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText("Email")).toBeInTheDocument();
+    });
+
+    const form = document.querySelector("form");
+    expect(form).not.toBeNull();
+    await userEvent.type(within(form!).getByLabelText("Email"), "user@seahavenind.com");
+    await userEvent.type(within(form!).getByLabelText("Password"), "secret123");
+    await userEvent.click(within(form!).getByRole("button", { name: /sign in/i }));
+
+    await waitFor(() => {
+      expect(authApi.login).toHaveBeenCalledWith({
+        username: "user@seahavenind.com",
+        password: "secret123",
+      });
+    });
+
+    await waitFor(() => {
+      expect(screen.getByTestId("dashboard")).toBeInTheDocument();
+    });
+
+    expect(screen.queryByRole("heading", { name: "Welcome back" })).not.toBeInTheDocument();
+    expect(toastSuccessMock).toHaveBeenCalledWith("Login successful!");
+  });
+
+  it("shows generic error message when login fails", async () => {
+    vi.mocked(authApi.login).mockRejectedValue(new Error("Invalid credentials"));
+
+    renderWithProviders(<LoginRoutes />, { route: "/login" });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText("Email")).toBeInTheDocument();
+    });
+
+    const form = document.querySelector("form");
+    expect(form).not.toBeNull();
+    await userEvent.type(within(form!).getByLabelText("Email"), "user@seahavenind.com");
+    await userEvent.type(within(form!).getByLabelText("Password"), "wrong-password");
+    await userEvent.click(within(form!).getByRole("button", { name: /sign in/i }));
+
+    await waitFor(() => {
+      expect(screen.getByText("Invalid email or password. Please try again.")).toBeInTheDocument();
+    });
+
+    expect(screen.getByRole("heading", { name: "Welcome back" })).toBeInTheDocument();
+  });
+
+  it("shows loading state while login is pending", async () => {
+    let resolveLogin: (value: { id: number; email: string }) => void = () => {};
+
+    vi.mocked(authApi.login).mockImplementation(
+      () =>
+        new Promise((resolve) => {
+          resolveLogin = resolve;
+        }),
+    );
+    vi.mocked(authApi.getSession).mockResolvedValue({ id: 1, email: "user@seahavenind.com" });
+
+    renderWithProviders(<LoginRoutes />, { route: "/login" });
+
+    await waitFor(() => {
+      expect(screen.getByLabelText("Email")).toBeInTheDocument();
+    });
+
+    const form = document.querySelector("form");
+    expect(form).not.toBeNull();
+    await userEvent.type(within(form!).getByLabelText("Email"), "user@seahavenind.com");
+    await userEvent.type(within(form!).getByLabelText("Password"), "secret123");
+    await userEvent.click(within(form!).getByRole("button", { name: /sign in/i }));
+
+    await waitFor(() => {
+      expect(within(form!).getByRole("button", { name: /signing in/i })).toBeDisabled();
+    });
+
+    resolveLogin({ id: 1, email: "user@seahavenind.com" });
+
+    await waitFor(() => {
+      expect(screen.getByTestId("dashboard")).toBeInTheDocument();
+    });
+  });
+});
diff --git a/src/test/components/auth/auth-routes.test.tsx b/src/test/components/auth/auth-routes.test.tsx
new file mode 100644
index 00000000..d5135ca8
--- /dev/null
+++ b/src/test/components/auth/auth-routes.test.tsx
@@ -0,0 +1,103 @@
+import { screen } from "@testing-library/react";
+import type { ReactElement } from "react";
+import { describe, expect, it, vi } from "vitest";
+
+import { GuestRoute } from "@/components/auth/guest-route";
+import { ProtectedRoute } from "@/components/auth/protected-route";
+import { AuthContext, type AuthContextValue } from "@/providers/auth-context";
+import { renderWithProviders } from "@/test/test-utils";
+
+function createAuthContextValue(overrides: Partial<AuthContextValue> = {}): AuthContextValue {
+  return {
+    user: null,
+    isAuthenticated: false,
+    isLoading: false,
+    error: null,
+    login: vi.fn(),
+    logout: vi.fn(),
+    changePassword: vi.fn(),
+    isLoggingIn: false,
+    isLoggingOut: false,
+    isChangingPassword: false,
+    loginError: null,
+    ...overrides,
+  };
+}
+
+function renderWithAuthContext(ui: ReactElement, authValue: AuthContextValue, route = "/") {
+  return renderWithProviders(<AuthContext.Provider value={authValue}>{ui}</AuthContext.Provider>, {
+    withAuth: false,
+    route,
+  });
+}
+
+describe("ProtectedRoute", () => {
+  it("redirects unauthenticated users to login", () => {
+    renderWithAuthContext(
+      <ProtectedRoute>
+        <div>Protected content</div>
+      </ProtectedRoute>,
+      createAuthContextValue({ isAuthenticated: false }),
+      "/workorders",
+    );
+
+    expect(screen.queryByText("Protected content")).not.toBeInTheDocument();
+  });
+
+  it("renders children for authenticated users", () => {
+    renderWithAuthContext(
+      <ProtectedRoute>
+        <div>Protected content</div>
+      </ProtectedRoute>,
+      createAuthContextValue({
+        isAuthenticated: true,
+        user: { id: 1, email: "user@seahavenind.com" },
+      }),
+      "/workorders",
+    );
+
+    expect(screen.getByText("Protected content")).toBeInTheDocument();
+  });
+
+  it("shows loading indicator while session is loading", () => {
+    renderWithAuthContext(
+      <ProtectedRoute>
+        <div>Protected content</div>
+      </ProtectedRoute>,
+      createAuthContextValue({ isLoading: true }),
+      "/workorders",
+    );
+
+    expect(screen.getByRole("status", { name: "Loading" })).toBeInTheDocument();
+    expect(screen.queryByText("Protected content")).not.toBeInTheDocument();
+  });
+});
+
+describe("GuestRoute", () => {
+  it("redirects authenticated users away from login", () => {
+    renderWithAuthContext(
+      <GuestRoute>
+        <div>Login content</div>
+      </GuestRoute>,
+      createAuthContextValue({
+        isAuthenticated: true,
+        user: { id: 1, email: "user@seahavenind.com" },
+      }),
+      "/login",
+    );
+
+    expect(screen.queryByText("Login content")).not.toBeInTheDocument();
+  });
+
+  it("renders children for unauthenticated users", () => {
+    renderWithAuthContext(
+      <GuestRoute>
+        <div>Login content</div>
+      </GuestRoute>,
+      createAuthContextValue({ isAuthenticated: false }),
+      "/login",
+    );
+
+    expect(screen.getByText("Login content")).toBeInTheDocument();
+  });
+});
diff --git a/src/test/domain/auth/schemas/login-schema.test.ts b/src/test/domain/auth/schemas/login-schema.test.ts
new file mode 100644
index 00000000..4f66b0c6
--- /dev/null
+++ b/src/test/domain/auth/schemas/login-schema.test.ts
@@ -0,0 +1,33 @@
+import { describe, expect, it } from "vitest";
+
+import { loginSchema } from "@/domain/auth/schemas/login-schema";
+
+describe("loginSchema", () => {
+  it("rejects empty username", () => {
+    const result = loginSchema.safeParse({ username: "", password: "secret" });
+
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.flatten().fieldErrors.username).toEqual(["Email is required"]);
+    }
+  });
+
+  it("rejects empty password", () => {
+    const result = loginSchema.safeParse({ username: "user@seahavenind.com", password: "" });
+
+    expect(result.success).toBe(false);
+    if (!result.success) {
+      expect(result.error.flatten().fieldErrors.password).toEqual(["Password is required"]);
+    }
+  });
+
+  it("accepts valid credentials", () => {
+    const credentials = { username: "user@seahavenind.com", password: "secret" };
+    const result = loginSchema.safeParse(credentials);
+
+    expect(result.success).toBe(true);
+    if (result.success) {
+      expect(result.data).toEqual(credentials);
+    }
+  });
+});
diff --git a/src/test/domain/uplifts/mappers/uplift-mapper.test.ts b/src/test/domain/uplifts/mappers/uplift-mapper.test.ts
new file mode 100644
index 00000000..75c5cfde
--- /dev/null
+++ b/src/test/domain/uplifts/mappers/uplift-mapper.test.ts
@@ -0,0 +1,59 @@
+import { describe, expect, it } from "vitest";
+import { mapUpliftQueueItem } from "@/domain/uplifts/mappers/uplift-mapper";
+
+describe("mapUpliftQueueItem", () => {
+  it("maps ASP.NET PascalCase payload with queue fields", () => {
+    const result = mapUpliftQueueItem({
+      Id: 42,
+      Status: "Pending",
+      CurrentNTE: 1000,
+      RequestedNTE: 1500,
+      Delta: 500,
+      VendorReason: "Scope increase",
+      RequestedAt: "2026-01-15T10:00:00Z",
+      RequestedByVendorName: "Acme Plumbing",
+      RequiredTier: 2,
+      CanDecide: true,
+      DispatchNumber: "D-1001",
+      PONumber: "PO-2002",
+      VendorCompanyName: "Acme Plumbing LLC",
+      WorkOrderId: 99,
+      DispatchId: 7,
+    });
+
+    expect(result).toMatchObject({
+      id: 42,
+      status: "Pending",
+      currentNTE: 1000,
+      requestedNTE: 1500,
+      delta: 500,
+      vendorReason: "Scope increase",
+      requestedAt: "2026-01-15T10:00:00Z",
+      requestedByVendorName: "Acme Plumbing",
+      requiredTier: 2,
+      canDecide: true,
+      dispatchNumber: "D-1001",
+      poNumber: "PO-2002",
+      vendorCompanyName: "Acme Plumbing LLC",
+      workOrderId: 99,
+      dispatchId: 7,
+    });
+  });
+
+  it("maps camelCase payload", () => {
+    const result = mapUpliftQueueItem({
+      id: "u1",
+      status: "Approved",
+      currentNTE: 200,
+      requestedNTE: 250,
+      delta: 50,
+      dispatchNumber: "D-1",
+      poNumber: "PO-1",
+      vendorCompanyName: "Vendor Co",
+    });
+
+    expect(result.id).toBe("u1");
+    expect(result.status).toBe("Approved");
+    expect(result.dispatchNumber).toBe("D-1");
+  });
+});
diff --git a/src/test/domain/work-orders/mappers/work-order-form-payload.test.ts b/src/test/domain/work-orders/mappers/work-order-form-payload.test.ts
new file mode 100644
index 00000000..ed8696ef
--- /dev/null
+++ b/src/test/domain/work-orders/mappers/work-order-form-payload.test.ts
@@ -0,0 +1,67 @@
+import { describe, expect, it } from "vitest";
+import {
+  mapWorkOrderFormToCreatePayload,
+  mapWorkOrderFormToUpdatePayload,
+} from "@/domain/work-orders/mappers/work-order-mapper";
+import { createDefaultWorkOrderFormValues } from "@/domain/work-orders/types/work-order";
+
+describe("mapWorkOrderFormToCreatePayload", () => {
+  it("maps required create fields to API payload", () => {
+    const values = {
+      ...createDefaultWorkOrderFormValues(),
+      workOrderNumber: "CUST-001",
+      title: "Replace filter",
+      locationId: "42",
+      priority: "Sev 1",
+      status: "Open" as const,
+      createdDate: "2026-01-15",
+      assignedTo: "Jane Doe",
+      description: "HVAC filter replacement",
+    };
+
+    expect(mapWorkOrderFormToCreatePayload(values)).toMatchObject({
+      workOrderNumber: "CUST-001",
+      title: "Replace filter",
+      locationId: 42,
+      priority: "Sev 1",
+      status: "Open",
+      createdDate: "2026-01-15",
+      assignedTo: "Jane Doe",
+      description: "HVAC filter replacement",
+    });
+  });
+});
+
+describe("mapWorkOrderFormToUpdatePayload", () => {
+  it("includes CreatedDate in update payload", () => {
+    const values = {
+      ...createDefaultWorkOrderFormValues(),
+      workOrderNumber: "CUST-001",
+      title: "Replace filter",
+      locationId: "42",
+      priority: "Sev 1",
+      status: "Open" as const,
+      createdDate: "2026-01-15",
+      description: "Updated description",
+    };
+
+    const payload = mapWorkOrderFormToUpdatePayload(99, values);
+
+    expect(payload.CreatedDate).toBe("2026-01-15");
+    expect(payload.Id).toBe(99);
+    expect(payload.WorkerOrderTitle).toBe("Replace filter");
+  });
+
+  it("maps nullable optional fields", () => {
+    const values = {
+      ...createDefaultWorkOrderFormValues(),
+      createdDate: "2026-01-15",
+    };
+
+    const payload = mapWorkOrderFormToUpdatePayload(1, values);
+
+    expect(payload.CreatedDate).toBe("2026-01-15");
+    expect(payload.PO).toBeNull();
+    expect(payload.LocationId).toBeNull();
+  });
+});
diff --git a/src/test/domain/work-orders/mappers/work-order-mapper.test.ts b/src/test/domain/work-orders/mappers/work-order-mapper.test.ts
new file mode 100644
index 00000000..a9dfc9bf
--- /dev/null
+++ b/src/test/domain/work-orders/mappers/work-order-mapper.test.ts
@@ -0,0 +1,47 @@
+import { describe, expect, it } from "vitest";
+import { mapUpliftRequest } from "@/domain/work-orders/mappers/work-order-mapper";
+
+describe("mapUpliftRequest", () => {
+  it("maps decided uplift fields from PascalCase payload", () => {
+    const result = mapUpliftRequest({
+      Id: 10,
+      Status: "Approved",
+      CurrentNTE: 800,
+      RequestedNTE: 1200,
+      Delta: 400,
+      VendorReason: "Additional materials",
+      RequestedAt: "2026-02-01T08:00:00Z",
+      RequestedByVendorName: "Beta HVAC",
+      DecidedAt: "2026-02-02T14:30:00Z",
+      DecidedByName: "Jane Manager",
+      DecisionNote: "Approved per contract",
+      RequiredTier: 2,
+      CanDecide: false,
+    });
+
+    expect(result).toEqual({
+      id: 10,
+      status: "Approved",
+      currentNTE: 800,
+      requestedNTE: 1200,
+      delta: 400,
+      vendorReason: "Additional materials",
+      requestedAt: "2026-02-01T08:00:00Z",
+      requestedByVendorName: "Beta HVAC",
+      decidedAt: "2026-02-02T14:30:00Z",
+      decidedByName: "Jane Manager",
+      decisionNote: "Approved per contract",
+      requiredTier: 2,
+      canDecide: false,
+    });
+  });
+
+  it("defaults missing numeric fields", () => {
+    const result = mapUpliftRequest({ id: 1, status: "Pending" });
+
+    expect(result.requestedNTE).toBe(0);
+    expect(result.delta).toBe(0);
+    expect(result.requiredTier).toBe(1);
+    expect(result.canDecide).toBe(false);
+  });
+});
diff --git a/src/test/domain/work-orders/schemas/work-order-schema.test.ts b/src/test/domain/work-orders/schemas/work-order-schema.test.ts
new file mode 100644
index 00000000..09234098
--- /dev/null
+++ b/src/test/domain/work-orders/schemas/work-order-schema.test.ts
@@ -0,0 +1,57 @@
+import { describe, expect, it } from "vitest";
+import { workOrderFormSchema } from "@/domain/work-orders/schemas/work-order-schema";
+import { createDefaultWorkOrderFormValues } from "@/domain/work-orders/types/work-order";
+
+describe("workOrderFormSchema", () => {
+  it("accepts valid work order form values", () => {
+    const result = workOrderFormSchema.safeParse({
+      ...createDefaultWorkOrderFormValues(),
+      title: "Replace filter",
+      locationId: "10",
+      priority: "Sev 1",
+      status: "Open",
+      createdDate: "2026-01-15",
+    });
+
+    expect(result.success).toBe(true);
+  });
+
+  it("rejects missing title", () => {
+    const result = workOrderFormSchema.safeParse({
+      ...createDefaultWorkOrderFormValues(),
+      title: "",
+      locationId: "10",
+      priority: "Sev 1",
+      status: "Open",
+      createdDate: "2026-01-15",
+    });
+
+    expect(result.success).toBe(false);
+  });
+
+  it("rejects missing location", () => {
+    const result = workOrderFormSchema.safeParse({
+      ...createDefaultWorkOrderFormValues(),
+      title: "Replace filter",
+      locationId: "",
+      priority: "Sev 1",
+      status: "Open",
+      createdDate: "2026-01-15",
+    });
+
+    expect(result.success).toBe(false);
+  });
+
+  it("rejects invalid priority", () => {
+    const result = workOrderFormSchema.safeParse({
+      ...createDefaultWorkOrderFormValues(),
+      title: "Replace filter",
+      locationId: "10",
+      priority: "Urgent",
+      status: "Open",
+      createdDate: "2026-01-15",
+    });
+
+    expect(result.success).toBe(false);
+  });
+});
diff --git a/src/test/domain/work-orders/utils/is-dispatch-locked.test.ts b/src/test/domain/work-orders/utils/is-dispatch-locked.test.ts
new file mode 100644
index 00000000..f26370c9
--- /dev/null
+++ b/src/test/domain/work-orders/utils/is-dispatch-locked.test.ts
@@ -0,0 +1,22 @@
+import { describe, expect, it } from "vitest";
+import { isDispatchLocked } from "@/domain/work-orders/utils/is-dispatch-locked";
+
+describe("isDispatchLocked", () => {
+  it("returns true when dispatch has verifiedAt timestamp", () => {
+    expect(isDispatchLocked({ verifiedAt: "2026-02-01T10:00:00Z", status: "In Progress" })).toBe(
+      true,
+    );
+  });
+
+  it("returns true when dispatch status is Verified", () => {
+    expect(isDispatchLocked({ verifiedAt: null, status: "Verified" })).toBe(true);
+  });
+
+  it("returns true when dispatch status is Cancelled", () => {
+    expect(isDispatchLocked({ verifiedAt: null, status: "Cancelled" })).toBe(true);
+  });
+
+  it("returns false for active dispatch", () => {
+    expect(isDispatchLocked({ verifiedAt: null, status: "Sent" })).toBe(false);
+  });
+});
diff --git a/src/test/setup.ts b/src/test/setup.ts
new file mode 100644
index 00000000..97877956
--- /dev/null
+++ b/src/test/setup.ts
@@ -0,0 +1,29 @@
+import "@testing-library/jest-dom/vitest";
+import { cleanup } from "@testing-library/react";
+import { afterEach } from "vitest";
+
+afterEach(() => {
+  cleanup();
+});
+
+Object.defineProperty(window, "matchMedia", {
+  writable: true,
+  value: (query: string) => ({
+    matches: false,
+    media: query,
+    onchange: null,
+    addListener: () => {},
+    removeListener: () => {},
+    addEventListener: () => {},
+    removeEventListener: () => {},
+    dispatchEvent: () => false,
+  }),
+});
+
+class ResizeObserverMock {
+  observe() {}
+  unobserve() {}
+  disconnect() {}
+}
+
+window.ResizeObserver = ResizeObserverMock;
diff --git a/src/test/test-utils.tsx b/src/test/test-utils.tsx
new file mode 100644
index 00000000..7137d34c
--- /dev/null
+++ b/src/test/test-utils.tsx
@@ -0,0 +1,62 @@
+import { CssBaseline, ThemeProvider } from "@mui/material";
+import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { render, type RenderOptions } from "@testing-library/react";
+import type { ReactElement, ReactNode } from "react";
+import { MemoryRouter, type MemoryRouterProps } from "react-router-dom";
+
+import { muiTheme } from "@/lib/theme/mui-theme";
+import { AuthProvider } from "@/providers/auth-provider";
+
+export function createTestQueryClient(): QueryClient {
+  return new QueryClient({
+    defaultOptions: {
+      queries: {
+        retry: false,
+        gcTime: 0,
+      },
+      mutations: {
+        retry: false,
+      },
+    },
+  });
+}
+
+type RenderWithProvidersOptions = Omit<RenderOptions, "wrapper"> & {
+  route?: string;
+  routerProps?: Omit<MemoryRouterProps, "children">;
+  withAuth?: boolean;
+  queryClient?: QueryClient;
+};
+
+export function renderWithProviders(
+  ui: ReactElement,
+  {
+    route = "/",
+    routerProps,
+    withAuth = true,
+    queryClient = createTestQueryClient(),
+    ...renderOptions
+  }: RenderWithProvidersOptions = {},
+) {
+  const initialEntries = routerProps?.initialEntries ?? [route];
+
+  function Wrapper({ children }: { children: ReactNode }) {
+    const content = withAuth ? <AuthProvider>{children}</AuthProvider> : children;
+
+    return (
+      <QueryClientProvider client={queryClient}>
+        <ThemeProvider theme={muiTheme}>
+          <CssBaseline />
+          <MemoryRouter {...routerProps} initialEntries={initialEntries}>
+            {content}
+          </MemoryRouter>
+        </ThemeProvider>
+      </QueryClientProvider>
+    );
+  }
+
+  return {
+    ...render(ui, { wrapper: Wrapper, ...renderOptions }),
+    queryClient,
+  };
+}