excalidraw/src/tests/scroll.test.tsx

54 lines
1.3 KiB
TypeScript

import {
mockBoundingClientRect,
render,
restoreOriginalGetBoundingClientRect,
waitFor,
} from "./test-utils";
import Excalidraw from "../packages/excalidraw/index";
import { API } from "./helpers/api";
const { h } = window;
describe("appState", () => {
it("scroll-to-content on init works with non-zero offsets", async () => {
const WIDTH = 200;
const HEIGHT = 100;
const OFFSET_LEFT = 20;
const OFFSET_TOP = 10;
const ELEM_WIDTH = 100;
const ELEM_HEIGHT = 60;
mockBoundingClientRect();
await render(
<div>
<Excalidraw
initialData={{
elements: [
API.createElement({
type: "rectangle",
id: "A",
width: ELEM_WIDTH,
height: ELEM_HEIGHT,
}),
],
scrollToContent: true,
}}
/>
</div>,
);
await waitFor(() => {
expect(h.state.width).toBe(200);
expect(h.state.height).toBe(100);
expect(h.state.offsetLeft).toBe(OFFSET_LEFT);
expect(h.state.offsetTop).toBe(OFFSET_TOP);
// assert scroll is in center
expect(h.state.scrollX).toBe(WIDTH / 2 - ELEM_WIDTH / 2);
expect(h.state.scrollY).toBe(HEIGHT / 2 - ELEM_HEIGHT / 2);
});
restoreOriginalGetBoundingClientRect();
});
});