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setupTests.ts
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setupTests.ts
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// vitest.setup.ts
import "vitest-canvas-mock";
import "@testing-library/jest-dom";
import { vi } from "vitest";
import polyfill from "./packages/excalidraw/polyfill";
import { testPolyfills } from "./packages/excalidraw/tests/helpers/polyfills";
Object.assign(globalThis, testPolyfills);
require("fake-indexeddb/auto");
polyfill();
Object.defineProperty(window, "matchMedia", {
writable: true,
value: vi.fn().mockImplementation((query) => ({
matches: false,
media: query,
onchange: null,
addListener: vi.fn(), // deprecated
removeListener: vi.fn(), // deprecated
addEventListener: vi.fn(),
removeEventListener: vi.fn(),
dispatchEvent: vi.fn(),
})),
});
vi.mock("nanoid", () => {
return {
nanoid: vi.fn(() => "test-id"),
};
});
// ReactDOM is located inside index.tsx file
// as a result, we need a place for it to render into
const element = document.createElement("div");
element.id = "root";
document.body.appendChild(element);