nested-set/test/nested.js

Fast nested set model helpers. Conversion flatten <-> nested

/**
 * Created by jacek on 07.01.17.
 */

const describe = require('mocha').describe;
const it = require('mocha').it;
const assert = require('chai').assert;
const deepCopy = require('deep-copy');
const flatten = require('./data/fletten.json');
const flattenCustom = require('./data/fletten-custom.json');
const nested = require('./data/nested.json');

const nestedSetContextFactory = require('../index');

describe('flatten to nested [default context]', () => {
    const nestedContext = nestedSetContextFactory();
    it('conversion flat to nested can not modify original data', () => {

        const flattenCopy = deepCopy(flatten);
        nestedContext.nest(flatten);
        // console.log(flatten);
        assert.deepEqual(flatten,flattenCopy);
    });

    it('nested must have children and must do not have lft, rgt', () => {

        const nestedCopy = nestedContext.nest(flatten);
        assert.isOk(nestedCopy[0].children);
        assert.isNotOk(nestedCopy[0].lft);
        assert.isNotOk(nestedCopy[0].rgt);
    });

    it('nest output must be equal to ./data/nested.json', () => {

        const nestedCopy = nestedContext.nest(flatten);

        assert.deepEqual(nestedCopy,nested);
    });
});

describe('flatten to nested [custom context]', () => {
   const nestedCustomContext = nestedSetContextFactory({
       left: 'customLeft',
       right: 'customRight',
       children: 'customChildren'
   });

   it('handle custom properties', () => {

       const result = nestedCustomContext.nest(flattenCustom);
       assert.isOk(result[0].customChildren);
       assert.isNotOk(result[0].customLeft);
       assert.isNotOk(result[0].customRight);
   });
});

describe('nested to flatten [default context]', () => {
    const nestedContext = nestedSetContextFactory();
    it('rawFlatten === flat(nest(rawFlatten))', () => {

        assert.deepEqual(flatten, nestedContext.flat(nestedContext.nest(flatten)));
    });
});