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

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 onSubmit={onSubmit} register />
				</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());
		expect(await screen.findByText("Пароли не совпадают")).toBeInTheDocument();
	});

	it.each([
		["register", "Регистрация", "Уже есть аккаунт? Войти"],
		["login", "Вход", "Нет аккаунта? Зарегистрироваться"],
	])("blocks the switch-auth link while %s is submitting", async (_mode, submitLabel, linkLabel) => {
		const { promise, resolve } = Promise.withResolvers<void>();
		const onSubmit = vi.fn(() => promise);
		render(
			<MantineProvider>
				<MemoryRouter>
					<AuthForm
						onSubmit={onSubmit}
						register={_mode === "register"}
					/>
				</MemoryRouter>
			</MantineProvider>,
		);

		fireEvent.change(screen.getByLabelText("Email"), {
			target: { value: "user@example.com" },
		});
		fireEvent.change(screen.getByLabelText("Пароль"), {
			target: { value: "a secure password" },
		});

		if (_mode === "register") {
			fireEvent.change(screen.getByLabelText("Подтвердите пароль"), {
				target: { value: "a secure password" },
			});
		}

		fireEvent.click(screen.getByRole("button", { name: submitLabel }));

		await waitFor(() => expect(onSubmit).toHaveBeenCalled());
		expect(screen.queryByRole("link", { name: linkLabel })).not.toBeInTheDocument();
		expect(screen.getByRole("button", { name: linkLabel })).toBeDisabled();

		resolve();
		await screen.findByRole("link", { name: linkLabel });
	});

	// Register policy is 8..72 printable ASCII; login accepts legacy passwords.
	it.each([
		["register", "Регистрация", "пароль-пароль", false],
		["register", "Регистрация", "passw😀rd", false],
		["register", "Регистрация", "a".repeat(7), false],
		["register", "Регистрация", "a".repeat(8), true],
		["register", "Регистрация", "a".repeat(72), true],
		["register", "Регистрация", "a".repeat(73), false],
		["login", "Вход", "пароль-пароль", true],
	])("%s submits password %j: %s", async (mode, submitLabel, password, submitted) => {
		const onSubmit = vi.fn().mockResolvedValue(undefined);

		render(
			<MantineProvider>
				<MemoryRouter>
					<AuthForm onSubmit={onSubmit} register={mode === "register"} />
				</MemoryRouter>
			</MantineProvider>,
		);

		fireEvent.change(screen.getByLabelText("Email"), { target: { value: "user@example.com" } });
		fireEvent.change(screen.getByLabelText("Пароль"), { target: { value: password } });

		if (mode === "register") {
			fireEvent.change(screen.getByLabelText("Подтвердите пароль"), { target: { value: password } });
		}

		fireEvent.click(screen.getByRole("button", { name: submitLabel }));

		await waitFor(() => expect(
			screen.queryByText(/Пароль: от 8 до 72 символов/) === null,
		).toBe(submitted));
		expect(onSubmit).toHaveBeenCalledTimes(submitted ? 1 : 0);
	});
});