@mysql/xdevapi/test/unit/Protocol/Wrappers/Traits/Serializable.js

MySQL Connector/Node.js - A Node.js driver for MySQL using the X Protocol and X DevAPI.

/*
 * Copyright (c) 2020, 2021, Oracle and/or its affiliates.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License, version 2.0, as
 * published by the Free Software Foundation.
 *
 * This program is also distributed with certain software (including
 * but not limited to OpenSSL) that is licensed under separate terms,
 * as designated in a particular file or component or in included license
 * documentation.  The authors of MySQL hereby grant you an
 * additional permission to link the program and your derivative works
 * with the separately licensed software that they have included with
 * MySQL.
 *
 * Without limiting anything contained in the foregoing, this file,
 * which is part of MySQL Connector/Node.js, is also subject to the
 * Universal FOSS Exception, version 1.0, a copy of which can be found at
 * http://oss.oracle.com/licenses/universal-foss-exception.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License, version 2.0, for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
 */

'use strict';

/* eslint-env node, mocha */

const expect = require('chai').expect;
const td = require('testdouble');

// subject under test needs to be reloaded with replacement fakes
let serializable = require('../../../../../lib/Protocol/Wrappers/Traits/Serializable');

describe('Serializable trait', () => {
    let bytes;

    beforeEach('create fakes', () => {
        bytes = td.replace('../../../../../lib/Protocol/Wrappers/ScalarValues/bytes');
        serializable = require('../../../../../lib/Protocol/Wrappers/Traits/Serializable');
    });

    afterEach('reset fakes', () => {
        td.reset();
    });

    context('serialize()', () => {
        it('converts the serialized typed array into a raw network buffer', () => {
            const toBuffer = td.function();
            const serializeBinary = td.function();
            const proto = { serializeBinary };

            td.when(serializeBinary()).thenReturn('foo');
            td.when(bytes('foo')).thenReturn({ toBuffer });
            td.when(toBuffer()).thenReturn('bar');

            expect(serializable(proto).serialize()).to.equal('bar');
        });
    });
});