import { getObjValue } from '..';
import { isEmptyObject, hasKey, deepClone, jsonify } from '../objectUtils';

describe('Object utils test', () => {
  describe('isEmptyObject', () => {
    it('returns true for an empty object', () => {
      expect(isEmptyObject({})).toBe(true);
    });
    it('returns false for a non empty object', () => {
      expect(isEmptyObject({ x: 1 })).toBe(false);
    });
  });

  describe('hasKey', () => {
    it('returns true if an object has a given key', () => {
      expect(hasKey({ x: 1 }, 'x')).toBe(true);
    });
    it('returns false if an object does not have a given key', () => {
      expect(hasKey({ x: 1 }, 'y')).toBe(false);
    });
  });

  describe('deepClone', () => {
    it('returns an object equal to the given one, without references to nested objects', () => {
      const anObject = { x: 1, y: {} };
      const anotherObject = { z: 34 };
      anObject.y = anotherObject;
      const clonedObject = deepClone(anObject);
      expect(clonedObject).toStrictEqual(anObject);
      anotherObject.z = 22;
      expect(clonedObject).not.toStrictEqual(anObject);
    });
  });
  describe('getObjectValue', () => {
    const testObject = { x: { y: { z: 'value' } } };
    it('gets object value with default separator', () => {
      expect(getObjValue(testObject, 'x.y.z')).toBe('value');
    });
    it('gets object value with custom separator', () => {
      expect(getObjValue(testObject, 'x/y/z', '/')).toBe('value');
    });
    it('gets object value with array separator', () => {
      expect(getObjValue(testObject, ['x', 'y', 'z'])).toBe('value');
    });
    it('gets undefined when path does not exist', () => {
      expect(getObjValue(testObject, 'x.z.z')).toBeUndefined();
    });
  });

  describe('jsonify', () => {
    const testObject = {
      x: new Set([1, 2]),
      y: new Map([['mapKey', 'mapValue']]),
    };
    it('jsonify object containing Set and Map', () => {
      expect(jsonify(testObject)).toEqual({
        x: [1, 2],
        y: { mapKey: 'mapValue' },
      });
    });
  });
});