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/**
* @vitest-environment jsdom
*/
import { cleanup, render, screen, waitFor } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { atom } from "jotai";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
const mockDelete = vi.fn();
const mockTriggerSync = vi.fn(() => Promise.resolve(null));
vi.mock("../db/repositories", () => ({
localDeckRepository: {
delete: (...args: unknown[]) => mockDelete(...args),
},
}));
vi.mock("../atoms", () => ({
syncActionAtom: atom(null, () => mockTriggerSync()),
}));
import { DeleteDeckModal } from "./DeleteDeckModal";
describe("DeleteDeckModal", () => {
const mockDeck = {
id: "deck-123",
name: "Test Deck",
};
const defaultProps = {
isOpen: true,
deck: mockDeck,
onClose: vi.fn(),
onDeckDeleted: vi.fn(),
};
beforeEach(() => {
vi.clearAllMocks();
mockDelete.mockResolvedValue(true);
});
afterEach(() => {
cleanup();
vi.restoreAllMocks();
});
it("does not render when closed", () => {
render(<DeleteDeckModal {...defaultProps} isOpen={false} />);
expect(screen.queryByRole("dialog")).toBeNull();
});
it("does not render when deck is null", () => {
render(<DeleteDeckModal {...defaultProps} deck={null} />);
expect(screen.queryByRole("dialog")).toBeNull();
});
it("renders modal when open with deck", () => {
render(<DeleteDeckModal {...defaultProps} />);
expect(screen.getByRole("dialog")).toBeDefined();
expect(screen.getByRole("heading", { name: "Delete Deck" })).toBeDefined();
expect(screen.getByRole("button", { name: "Cancel" })).toBeDefined();
expect(screen.getByRole("button", { name: "Delete" })).toBeDefined();
});
it("displays confirmation message with deck name", () => {
render(<DeleteDeckModal {...defaultProps} />);
expect(screen.getByText(/Are you sure you want to delete/)).toBeDefined();
expect(screen.getByText("Test Deck")).toBeDefined();
});
it("displays warning about permanent deletion", () => {
render(<DeleteDeckModal {...defaultProps} />);
expect(screen.getByText(/This action cannot be undone/)).toBeDefined();
});
it("calls onClose when Cancel is clicked", async () => {
const user = userEvent.setup();
const onClose = vi.fn();
render(<DeleteDeckModal {...defaultProps} onClose={onClose} />);
await user.click(screen.getByRole("button", { name: "Cancel" }));
expect(onClose).toHaveBeenCalledTimes(1);
});
it("deletes deck via local repository when Delete is clicked", async () => {
const user = userEvent.setup();
const onClose = vi.fn();
const onDeckDeleted = vi.fn();
render(
<DeleteDeckModal
isOpen={true}
deck={mockDeck}
onClose={onClose}
onDeckDeleted={onDeckDeleted}
/>,
);
await user.click(screen.getByRole("button", { name: "Delete" }));
await waitFor(() => {
expect(mockDelete).toHaveBeenCalledWith("deck-123");
});
expect(onDeckDeleted).toHaveBeenCalledTimes(1);
expect(onClose).toHaveBeenCalledTimes(1);
});
it("triggers a background sync after a successful delete", async () => {
const user = userEvent.setup();
render(<DeleteDeckModal {...defaultProps} />);
await user.click(screen.getByRole("button", { name: "Delete" }));
await waitFor(() => {
expect(mockTriggerSync).toHaveBeenCalled();
});
});
it("shows loading state during deletion", async () => {
const user = userEvent.setup();
mockDelete.mockImplementation(() => new Promise(() => {}));
render(<DeleteDeckModal {...defaultProps} />);
await user.click(screen.getByRole("button", { name: "Delete" }));
expect(screen.getByRole("button", { name: "Deleting..." })).toBeDefined();
expect(screen.getByRole("button", { name: "Deleting..." })).toHaveProperty(
"disabled",
true,
);
expect(screen.getByRole("button", { name: "Cancel" })).toHaveProperty(
"disabled",
true,
);
});
it("shows an error when the deck no longer exists locally", async () => {
const user = userEvent.setup();
mockDelete.mockResolvedValue(false);
render(<DeleteDeckModal {...defaultProps} />);
await user.click(screen.getByRole("button", { name: "Delete" }));
await waitFor(() => {
expect(screen.getByRole("alert").textContent).toContain(
"Deck not found.",
);
});
});
it("displays a generic error when the local write fails", async () => {
const user = userEvent.setup();
mockDelete.mockRejectedValue(new Error("disk full"));
render(<DeleteDeckModal {...defaultProps} />);
await user.click(screen.getByRole("button", { name: "Delete" }));
await waitFor(() => {
expect(screen.getByRole("alert").textContent).toContain(
"Failed to delete deck. Please try again.",
);
});
});
it("clears error when modal is closed", async () => {
const user = userEvent.setup();
const onClose = vi.fn();
mockDelete.mockRejectedValueOnce(new Error("Some error"));
const { rerender } = render(
<DeleteDeckModal {...defaultProps} onClose={onClose} />,
);
await user.click(screen.getByRole("button", { name: "Delete" }));
await waitFor(() => {
expect(screen.getByRole("alert")).toBeDefined();
});
await user.click(screen.getByRole("button", { name: "Cancel" }));
rerender(<DeleteDeckModal {...defaultProps} onClose={onClose} />);
expect(screen.queryByRole("alert")).toBeNull();
});
it("displays deck name correctly when changed", () => {
const { rerender } = render(<DeleteDeckModal {...defaultProps} />);
expect(screen.getByText("Test Deck")).toBeDefined();
const newDeck = { id: "deck-456", name: "Another Deck" };
rerender(<DeleteDeckModal {...defaultProps} deck={newDeck} />);
expect(screen.getByText("Another Deck")).toBeDefined();
});
});
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