hexo/node_modules/moize/__tests__/shallowEqual.ts

36 lines
806 B
TypeScript

import moize from '../src';
type Arg = {
one: number;
two: {
deep: number;
};
};
const method = jest.fn(function ({ one, two }: Arg) {
return [one, two.deep];
});
const memoized = moize.shallow(method);
describe('moize.shallow', () => {
it('should memoized based on the shallow values', () => {
const two = { deep: 2 };
const resultA = memoized({ one: 1, two });
const resultB = memoized({ one: 1, two });
expect(resultA).toEqual([1, 2]);
expect(resultA).toBe(resultB);
expect(method).toHaveBeenCalledTimes(1);
const resultC = memoized({ one: 1, two: { ...two } });
expect(resultC).toEqual(resultA);
expect(resultC).not.toBe(resultA);
expect(method).toHaveBeenCalledTimes(2);
});
});