import { VNodeData, VNodeDirective } from "vue";
import { mergeData } from "../src/index";

it("should handle nested nullable objects as initial state", () => {
  let testData: VNodeData[] = [{ on: undefined }, { staticClass: "foo" }];
  let actual: VNodeData;
  let boom = () => (actual = mergeData(...testData));

  expect(boom).not.toThrowError();
  expect(actual.staticClass).toBe("foo");
  expect(actual.on).toEqual({});
});