@applicaster/zapp-react-native-utils/reactHooks/layout/useDimensions/helpers/__tests__/getInitialDimensions.test.js

Applicaster Zapp React Native utilities package

import * as ReactNative from "react-native";

const mockDimensionsGet = jest.fn(
  (type) =>
    ({
      window: { width: 1, height: 1 },
      screen: { width: 360, height: 540 },
    })[type]
);

ReactNative.Dimensions.get = mockDimensionsGet;

const { Platform, Dimensions } = ReactNative;

Platform.OS = "web";

const { getInitialDimensions } = require("../getInitialDimensions.ts");

describe("useDimensions > helpers (web)", () => {
  it("should call Dimensions.get", () => {
    getInitialDimensions("window");
    expect(Dimensions.get).toBeCalled();
  });
});