@mysql/xdevapi/test/unit/ExprParser/mulDivExpr.js

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

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 * 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.
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 * This program is also distributed with certain software (including
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 * as designated in a particular file or component or in included license
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 */

'use strict';

/* eslint-env node, mocha */

const Parser = require('../../../lib/ExprParser');
const expect = require('chai').expect;

describe('ExprParser', () => {
    context('mulDivExpr', () => {
        const parser = Parser({ type: Parser.Type.MUL_DIV_EXPR });

        it('parses multiplication functions', () => {
            return expect(parser.parse('3 * 4')).to.deep.equal({
                type: 'mulDivExpr',
                value: {
                    name: '*',
                    params: [{
                        type: 'literal',
                        value: 3
                    }, {
                        type: 'literal',
                        value: 4
                    }]
                }
            });
        });

        it('parses division functions', () => {
            expect(parser.parse('10 / 2')).to.deep.equal({
                type: 'mulDivExpr',
                value: {
                    name: '/',
                    params: [{
                        type: 'literal',
                        value: 10
                    }, {
                        type: 'literal',
                        value: 2
                    }]
                }
            });

            return expect(parser.parse('8 div 4')).to.deep.equal({
                type: 'mulDivExpr',
                value: {
                    name: '/',
                    params: [{
                        type: 'literal',
                        value: 8
                    }, {
                        type: 'literal',
                        value: 4
                    }]
                }
            });
        });

        it('parses remainder functions', () => {
            return expect(parser.parse('4 % 2')).to.deep.equal({
                type: 'mulDivExpr',
                value: {
                    name: '%',
                    params: [{
                        type: 'literal',
                        value: 4
                    }, {
                        type: 'literal',
                        value: 2
                    }]
                }
            });
        });

        it('parses composable functions', () => {
            return expect(parser.parse('3 * 4 / 2')).to.deep.equal({
                type: 'mulDivExpr',
                value: {
                    name: '/',
                    params: [{
                        type: 'mulDivExpr',
                        value: {
                            name: '*',
                            params: [{
                                type: 'literal',
                                value: 3
                            }, {
                                type: 'literal',
                                value: 4
                            }]
                        }
                    }, {
                        type: 'literal',
                        value: 2
                    }]
                }
            });
        });
    });
});