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import { fireEvent, render, screen } from "@testing-library/svelte";
import { describe, expect, it, vi } from "vitest";
import Markdown from "./Markdown.svelte";
describe("Markdown", () => {
it("renders markdown into a .markdown-body container", () => {
const { container } = render(Markdown, { props: { text: "# Hello\n\n**hi**" } });
expect(container.querySelector(".markdown-body")).not.toBeNull();
expect(screen.getByRole("heading", { level: 1, name: "Hello" })).toBeInTheDocument();
expect(container.querySelector("strong")?.textContent).toBe("hi");
});
it("strips dangerous markup", () => {
const { container } = render(Markdown, {
props: { text: "before <script>alert(1)</script> after" },
});
expect(container.querySelector("script")).toBeNull();
expect(container.textContent).toContain("before");
});
it("renders a copy button on a code block that copies the code to the clipboard", async () => {
const writeText = vi.fn().mockResolvedValue(undefined);
Object.defineProperty(navigator, "clipboard", { value: { writeText }, configurable: true });
const { container } = render(Markdown, {
props: { text: "```js\nconst x = 1;\n```" },
});
const button = container.querySelector<HTMLElement>("[data-copy]");
expect(button).not.toBeNull();
if (button === null) throw new Error("expected a copy button");
await fireEvent.click(button);
expect(writeText).toHaveBeenCalledTimes(1);
expect(writeText.mock.calls[0]?.[0]).toContain("const x = 1;");
});
});
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