alasql/test/test042.js

AlaSQL.js - JavaScript SQL database library for relational and graph data manipulation with support of localStorage, IndexedDB, and Excel

if(typeof exports === 'object') {
	var assert = require("assert");
	var alasql = require('..');
};

describe('Test 42', function() {
	describe('MID function', function(){

		var db;
		it('MID Function', function(done){
			db = new alasql.Database("db");

			db.exec('CREATE TABLE one (a STRING, b FLOAT)');
			db.exec('INSERT INTO one VALUES ("One", 1.234),("Two", 2.9876443343),("Three", 3.3322343)');
			var res = db.exec("SELECT COLUMN MID(a,2,2) AS b FROM one");
			assert.deepEqual([ 'ne', 'wo', 'hr' ],res);
			done();
		});

		it('ROUND Function', function(done){
			var res = db.exec("SELECT COLUMN ROUND(b) AS b FROM one");
			assert.deepEqual([ 1, 3, 3 ],res);

			var res = db.exec("SELECT COLUMN ROUND(b,1) AS b FROM one");
			assert.deepEqual([ 1.2, 3.0, 3.3 ],res);

			done();
		});

	});
});