refactor: colocate frontend component files

src/features/auth/ui/AuthForm/AuthForm.test.tsx

@@ -0,0 +1,34 @@
+import { MantineProvider } from "@mantine/core";
+import { fireEvent, render, screen, waitFor } from "@testing-library/react";
+import { MemoryRouter } from "react-router";
+import { describe, expect, it, vi } from "vitest";
+import { AuthForm } from "./AuthForm";
+
+describe("AuthForm", () => {
+	it("does not submit registration when password confirmation differs", async () => {
+		const onSubmit = vi.fn();
+		render(
+			<MantineProvider>
+				<MemoryRouter>
+					<AuthForm register onSubmit={onSubmit} />
+				</MemoryRouter>
+			</MantineProvider>,
+		);
+
+		fireEvent.change(screen.getByLabelText("Email"), {
+			target: { value: "user@example.com" },
+		});
+		fireEvent.change(screen.getByLabelText("Пароль"), {
+			target: { value: "a secure password" },
+		});
+		fireEvent.change(screen.getByLabelText("Подтвердите пароль"), {
+			target: { value: "another secure password" },
+		});
+		fireEvent.click(screen.getByRole("button", { name: "Регистрация" }));
+
+		await waitFor(() => expect(onSubmit).not.toHaveBeenCalled());
+		await waitFor(() =>
+			expect(screen.getByText("Пароли не совпадают")).toBeInTheDocument(),
+		);
+	});
+});