alasql/test/test193.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('..');
} else {
	__dirname = '.';
};

//if(typeof exports != 'object') {

describe('Test 193 - GROUP BY formula', function() {

//    console.log(alasql.parse('SELECT a FROM ? GROUP BY a % 2').toString());

    it("1. GROUP BY formula, SELECT with formula", function(done) {
        var data = [{a:1},{a:1},{a:2},{a:3},{a:1},{a:2}];
        var res = alasql('SELECT COUNT(a+1)+1 AS b FROM ? GROUP BY a%2',[data]);
        assert.deepEqual(res,[ { b: 5 }, { b: 3 } ]);
//        console.log('Result:',res);
    	done();
    });
   
    it("2. PI calculation #1", function(done) {
        var res = alasql('SELECT VALUE COUNT(*)*4/$[0] FROM \
            (SELECT RANDOM() AS x, RANDOM() AS y FROM RANGE(1,$[0])) WHERE x*x+y*y<1',[100000]);
        console.log('PI=',res);
        assert(3.1<res && res<3.2);
        done();
    });

    it("3. PI calculation #2", function(done) {
        var res = alasql('SELECT VALUE COUNT(*)*4/$[0] FROM RANGE(1,$[0]) WHERE RANDOM()^2+RANDOM()^2<1',[100000]);
        assert(3.1<res && res<3.2);
//        console.log('PI=',res);
        done();
    });
});