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'use strict';
const assert = require('assert');const clone = require('../../lib/helpers/clone');const symbols = require('../../lib/helpers/symbols');const ObjectId = require('../../lib/types/objectid');const Decimal = require('../../lib/types/decimal128');
describe('clone', () => {  describe('falsy', () => {    it('is null when null', () => {      assert.deepStrictEqual(clone(null), null);    });
    it('is false when false', () => {      assert.deepStrictEqual(clone(false), false);    });
    it('is undefined when undefined', () => {      assert.deepStrictEqual(clone(undefined), undefined);    });
    it('is 0 when 0', () => {      assert.deepStrictEqual(clone(0), 0);    });  });
  describe('Array', () => {    it('clones first level', () => {      const base = [1, 2];      const cloned = clone(base);      assert.deepStrictEqual(cloned, base);      cloned[0] = 2;      assert.deepStrictEqual(base, [1, 2]);      assert.deepStrictEqual(cloned, [2, 2]);    });
    it('clones deeper', () => {      const base = [0, [1], { 2: 2 }];      const cloned = clone(base);      assert.deepStrictEqual(cloned, base);      cloned[0] = 1;      cloned[1][0] = 2;      cloned[2][2] = 3;      assert.deepStrictEqual(cloned, [1, [2], { 2: 3 }]);      assert.deepStrictEqual(base, [0, [1], { 2: 2 }]);    });  });
  describe('mongoose object', () => {    it('use toObject', () => {      const base = {        $__: true,        myAttr: 'myAttrVal',        toObject() {          const obj = JSON.parse(JSON.stringify(base));          obj.toObject = base.toObject;          return obj;        }      };      const cloned = clone(base);      assert.deepStrictEqual(cloned, base);      cloned.myAttr = 'otherAttrVal';      assert.equal(base.myAttr, 'myAttrVal');      assert.equal(cloned.myAttr, 'otherAttrVal');    });
    it('use toJSON', () => {      const base = {        $__: true,        myAttr: 'myAttrVal',        toJSON: () => JSON.stringify({ $__: true, myAttr: 'myAttrVal' })      };      const cloned = JSON.parse(clone(base, { json: true }));      assert.equal(cloned.myAttr, 'myAttrVal');      cloned.myAttr = 'otherAttrVal';      assert.equal(base.myAttr, 'myAttrVal');      assert.equal(cloned.myAttr, 'otherAttrVal');    });
    it('skipSingleNestedGetters', () => {      const baseOpts = { _skipSingleNestedGetters: true, $isSingleNested: true };      const base = {        $__: true,        myAttr: 'myAttrVal',        $isSingleNested: true,        toObject(cloneOpts) {          assert.deepStrictEqual(            Object.assign({}, baseOpts, { getters: false }),            cloneOpts          );          const obj = JSON.parse(JSON.stringify(base));          obj.toObject = base.toObject;          return obj;        }      };      const cloned = clone(base, baseOpts);      assert.deepStrictEqual(cloned, base);      cloned.myAttr = 'otherAttrVal';      assert.equal(base.myAttr, 'myAttrVal');      assert.equal(cloned.myAttr, 'otherAttrVal');    });  });
  describe('global objects', () => {    describe('constructor is Object', () => {      it('!minimize || isArrayChild', () => {        const base = { myAttr: 'myAttrVal' };        const cloned = clone(base);        assert.deepStrictEqual(cloned, base);        cloned.myAttr = 'otherAttrVal';        assert.equal(base.myAttr, 'myAttrVal');        assert.equal(cloned.myAttr, 'otherAttrVal');      });
      it('!constructor && !minimize || isArrayChild', () => {        const base = Object.create(null);        base.myAttr = 'myAttrVal';        const cloned = clone(base);        assert.equal(base.myAttr, cloned.myAttr);        cloned.myAttr = 'otherAttrVal';        assert.equal(base.myAttr, 'myAttrVal');        assert.equal(cloned.myAttr, 'otherAttrVal');      });
      it('minimize && !isArrayChild && hasKey', () => {        const base = { myAttr: 'myAttrVal', otherAttr: undefined, prototype: 'p' };        const cloned = clone(base, { minimize: true }, true);        assert.equal(base.myAttr, cloned.myAttr);        assert.deepStrictEqual(Object.keys(base), ['myAttr', 'otherAttr', 'prototype']);        assert.deepStrictEqual(Object.keys(cloned), ['myAttr']);      });
      it('minimize and !isArrayChild && !hasKey', () => {        const base = { otherAttr: undefined, prototype: 'p' };        const cloned = clone(base, { minimize: true }, false);        assert.equal(cloned, null);      });    });
    describe('constructor is Data', () => {      it('return new equal date ', () => {        const base = new Date();        const cloned = clone(base);        assert.deepStrictEqual(base, cloned);      });    });
    describe('constructor is RegExp', () => {      it('return new equal date ', () => {        const base = new RegExp(/A-Z.*/g);        base.lastIndex = 2;        const cloned = clone(base);        assert.deepStrictEqual(base, cloned);        assert.ok(base.lastIndex === cloned.lastIndex);      });    });  });
  describe('mongo object', () => {    it('is instance of ObjectId', () => {      const base = new ObjectId();      const cloned = clone(base);      assert.deepStrictEqual(base, cloned);    });  });
  describe('schema type', () => {    it('have schemaTypeSymbol property', () => {      const base = {        myAttr: 'myAttrVal',        [symbols.schemaTypeSymbol]: 'MyType',        clone() {          return {            myAttr: this.myAttr          };        }      };      const cloned = clone(base);      assert.deepStrictEqual(base.myAttr, cloned.myAttr);    });  });
  describe('bson', () => {    it('Decimal128', () => {      const base = {        _bsontype: 'Decimal128',        toString() { return '128'; }      };      base.constructor = undefined;      const cloned = clone(base);      const expected = Decimal.fromString(base.toString());      assert.deepStrictEqual(cloned, expected);    });
    it('Decimal128 (flatternDecimal)', () => {      const base = {        _bsontype: 'Decimal128',        toJSON() { return 128; }      };      base.constructor = undefined;      const cloned = clone(base, { flattenDecimals: true });      assert.deepStrictEqual(cloned, base.toJSON());    });
    it('does nothing', () => {      class BeeSon {        constructor() { this.myAttr = 'myAttrVal'; }        toBSON() {}      }      const base = new BeeSon();      const cloned = clone(base, { bson: true });      assert.equal(base.myAttr, cloned.myAttr);      cloned.myAttr = 'otherAttrVal';      assert.equal(base.myAttr, 'otherAttrVal');      assert.equal(cloned.myAttr, 'otherAttrVal');    });  });
  describe('wrapper', () => {
  });
  describe('any else', () => {    it('valueOf', () => {      let called = false;      class Wrapper {        constructor(myAttr) {          this.myAttr = myAttr;        }        valueOf() {          called = true;          return new Wrapper(this.myAttr);        }      }      const base = new Wrapper('myAttrVal');      const cloned = clone(base);      assert.ok(called);      assert.deepStrictEqual(cloned, base);      cloned.myAttr = 'otherAttrVal';      assert.equal(base.myAttr, 'myAttrVal');      assert.equal(cloned.myAttr, 'otherAttrVal');    });
    it('cloneObject', () => {      class CloneMe {        constructor(myAttr) {          this.myAttr = myAttr;        }      }      const base = new CloneMe('myAttrVal');      base.valueOf = undefined;      const cloned = clone(base);      assert.equal(base.myAttr, cloned.myAttr);      cloned.myAttr = 'otherAttrVal';      assert.equal(base.myAttr, 'myAttrVal');      assert.equal(cloned.myAttr, 'otherAttrVal');      // I can't say it's expected behavior, but is how it's behave.      assert.equal(typeof cloned, 'object');      assert.equal(cloned.constructor, Object);    });  });});