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

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

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 *
 * This program is free software; you can redistribute it and/or modify
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 * published by the Free Software Foundation.
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 * This program is also distributed with certain software (including
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'use strict';

/* eslint-env node, mocha */

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

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

        it('parses double-quoted strings as JavaScript strings', () => {
            return expect(parser.parse('"foo"')).to.deep.equal({ type: 'literal', value: 'foo' });
        });

        it('parses single-quoted strings as JavaScript strings', () => {
            return expect(parser.parse("'bar'")).to.deep.equal({ type: 'literal', value: 'bar' });
        });

        it('parses safe integers as JavaScript numbers', () => {
            return expect(parser.parse('1')).to.deep.equal({ type: 'literal', value: 1 });
        });

        it('parses positive unsafe integers as JavaScript strings', () => {
            const unsafeInteger = `${Number.MAX_SAFE_INTEGER + 1}`;
            return expect(parser.parse(unsafeInteger)).to.deep.equal({ type: 'literal', value: unsafeInteger });
        });

        it('parses negative safe integers as JavaScript numbers', () => {
            return expect(parser.parse('-1')).to.deep.equal({ type: 'literal', value: -1 });
        });

        it('parses negative unsafe integers as JavaScript strings', () => {
            const unsafeInteger = `${Number.MIN_SAFE_INTEGER - 1}`;
            return expect(parser.parse(unsafeInteger)).to.deep.equal({ type: 'literal', value: unsafeInteger });
        });

        it('parses positive safe decimal values as JavaScript numbers', () => {
            return expect(parser.parse('1.11111111')).to.deep.equal({ type: 'literal', value: 1.11111111 });
        });

        it('parses positive unsafe decimal values as JavaScript strings', () => {
            return expect(parser.parse('1.23456789123456789')).to.deep.equal({ type: 'literal', value: '1.23456789123456789' });
        });

        it('parses negative safe decimal values as JavaScript numbers', () => {
            return expect(parser.parse('-1.11111111')).to.deep.equal({ type: 'literal', value: -1.11111111 });
        });

        it('parses negative unsafe decimal values as JavaScript strings', () => {
            return expect(parser.parse('-1.23456789123456789')).to.deep.equal({ type: 'literal', value: '-1.23456789123456789' });
        });

        it('parses booleans values as JavaScript booleans', () => {
            expect(parser.parse('true')).to.deep.equal({ type: 'literal', value: true });
            expect(parser.parse('TRUE')).to.deep.equal({ type: 'literal', value: true });
            expect(parser.parse('false')).to.deep.equal({ type: 'literal', value: false });
            return expect(parser.parse('FALSE')).to.deep.equal({ type: 'literal', value: false });
        });

        it('parses NULL values as a JavaScript null', () => {
            expect(parser.parse('null')).to.deep.equal({ type: 'literal', value: null });
        });
    });
});