object-hierarchy-access/test/traverse/1-normal.js

Get/Set value from/to JS object hierarchy properties

const assert = require('assert').strict;
const {traverse} = require('../../');

const result1 = [];
const obj1 = {a: {b: {c: 100}}};
traverse(obj1, 'a', 'b', 'c', (parent, name, current) => {
	result1.push({parent, name, current});
});
assert.deepEqual(result1, [
	{parent: {a: {b: {c: 100}}}, name: 'a', current: {b: {c: 100}}},
	{parent: {b: {c: 100}}, name: 'b', current: {c: 100}},
	{parent: {c: 100}, name: 'c', current: 100}
]);


const result2 = [];
const obj2 = {a: {b: {c: 200}}};
traverse(obj2, ['a', 'b'], 'c', (parent, name, current) => {
	result2.push({parent, name, current});
});
assert.deepEqual(result2, [
	{parent: {a: {b: {c: 200}}}, name: 'a', current: {b: {c: 200}}},
	{parent: {b: {c: 200}}, name: 'b', current: {c: 200}},
	{parent: {c: 200}, name: 'c', current: 200}
]);

const result3 = [];
const obj3 = {x: {y: {z: 300}}};
traverse(obj3, () => 'x', {name: 'y'}, {
	getName: () => 'z', got: (parent, name, current) => {
		assert.deepEqual(parent, obj3.x.y);
		assert.equal(name, 'z1');
		assert.equal(current, obj3.x.y.z);
	}
}, (parent, name) => {
	result3.push(name);
	if (name === 'y') {
		return false;
	}
});
assert.deepEqual(result3, ['x', 'y']);