js_mock.js

let storage = {};

let get = function (key) {
	return storage[key];
}

let put = function (key, value) {
	storage[key] = value;
}

let del = function (key) {
	delete storage[key];
}

function createUser(username, password) {
	let user = {
		username: username,
		password: password
	}
	put(username, user);
	return get(username);
}

function createPost(username, title, content) {
	let post = {
		title: title,
		content: content
	}
	let user = {...get(username)};
	user.posts = user.posts || [];
	user.posts.push(post);
	put(username, user);
	return get(username);
}

function deletePosts(username) {
	let user = {...get(username)};
	user.posts = [];
	put(username, user);
	return get(username);
}

function form() {
	// Create user
	createUser('user1', 'pass1');
	// Create post
	createPost('user1', 'title1', 'content1');
	// Delete posts
	deletePosts('user1');
}

function test() {
	let mockEvents = [];

	let mock = (name, func) => {
		return (...args) => {
			let ret = func(...args);
			mockEvents.push({ name, args, ret })
			return ret;
		};
	};

	get = mock('get', get);
	put = mock('put', put);
	del = mock('del', del);

	form();

	// put function
	console.log(mockEvents[0].name == 'put');
	console.log(mockEvents[0].args[0] == 'user1');
	// console.log(mockEvents[0].args[1].username == 'user1');
	// console.log(mockEvents[0].args[1].password == 'pass1');

	// // get function
	// console.log(mockEvents[1].name == 'get');
	// console.log(mockEvents[1].args[0] == 'user1');
	// console.log(mockEvents[1].ret.username == 'user1');
	// console.log(mockEvents[1].ret.password == 'pass1');
	console.log(mockEvents)
}

test()