@mysql/xdevapi
Version:
MySQL Connector/Node.js - A Node.js driver for MySQL using the X Protocol and X DevAPI.
148 lines (138 loc) • 5.2 kB
JavaScript
/*
* Copyright (c) 2022, 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 Parser = require('../../../lib/ExprParser');
const expect = require('chai').expect;
describe('ExprParser', () => {
context('addSubExpr', () => {
const parser = Parser({ type: Parser.Type.ADD_SUB_EXPR });
it('parses addition functions', () => {
return expect(parser.parse('1.234 + 1.234')).to.deep.equal({
type: 'addSubExpr',
value: {
name: '+',
params: [{
type: 'literal',
value: 1.234
}, {
type: 'literal',
value: 1.234
}]
}
});
});
it('parses subtraction functions', () => {
return expect(parser.parse(`${Number.MIN_SAFE_INTEGER} - 10`)).to.deep.equal({
type: 'addSubExpr',
value: {
name: '-',
params: [{
type: 'literal',
value: Number.MIN_SAFE_INTEGER
}, {
type: 'literal',
value: 10
}]
}
});
});
it('parses composable functions', () => {
return expect(parser.parse('3 + 5 - 2')).to.deep.equal({
type: 'addSubExpr',
value: {
name: '-',
params: [{
type: 'addSubExpr',
value: {
name: '+',
params: [{
type: 'literal',
value: 3
}, {
type: 'literal',
value: 5
}]
}
}, {
type: 'literal',
value: 2
}]
}
});
});
it('parses composable functions with the correct precedence', () => {
expect(parser.parse('2 * 2 - 1')).to.deep.equal({
type: 'addSubExpr',
value: {
name: '-',
params: [{
type: 'mulDivExpr',
value: {
name: '*',
params: [{
type: 'literal',
value: 2
}, {
type: 'literal',
value: 2
}]
}
}, {
type: 'literal',
value: 1
}]
}
});
return expect(parser.parse('3 + 5 * 2')).to.deep.equal({
type: 'addSubExpr',
value: {
name: '+',
params: [{
type: 'literal',
value: 3
}, {
type: 'mulDivExpr',
value: {
name: '*',
params: [{
type: 'literal',
value: 5
}, {
type: 'literal',
value: 2
}]
}
}]
}
});
});
});
});