Files
twitch-panels/tests/unit/components/panel/PreviewControls.test.ts

47 lines
1.6 KiB
TypeScript

import { SlideDirection } from "$lib/constants";
import { render, screen } from "@testing-library/svelte";
import userEvent from "@testing-library/user-event";
import { describe, expect, it } from "vitest";
import PreviewControlsTest from "./PreviewControlsTest.svelte";
describe("PreviewControls logic", () => {
it("should increment current and update direction on next click", async () => {
const user = userEvent.setup();
render(PreviewControlsTest, { props: { current: 0, max: 3 } });
const nextBtn = screen.getByRole("button", { name: /next slide/i });
await user.click(nextBtn);
expect(screen.getByTestId("current").textContent).toBe("1");
expect(screen.getByTestId("direction").textContent).toBe(SlideDirection.NEXT);
});
it("should decrement current on prev click", async () => {
const user = userEvent.setup();
render(PreviewControlsTest, { props: { current: 2, max: 3 } });
const prevBtn = screen.getByRole("button", { name: /previous slide/i });
await user.click(prevBtn);
expect(screen.getByTestId("current").textContent).toBe("1");
});
it("should handle boundaries and disable buttons", async () => {
const user = userEvent.setup();
render(PreviewControlsTest, { props: { current: 0, max: 2 } });
const prevBtn = screen.getByRole("button", { name: /previous slide/i });
const nextBtn = screen.getByRole("button", { name: /next slide/i });
expect(prevBtn).toBeDisabled();
await user.click(nextBtn);
expect(screen.getByTestId("current").textContent).toBe("1");
expect(nextBtn).toBeDisabled();
expect(prevBtn).not.toBeDisabled();
});
});