alasql/test/test201.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 = '.';
};

describe('Test 201 SUM(DISTINCT), VAR(), STDDEV()', function() {

    it("1. different SUM()s", function(done) {
    	var data = [{a:1},{a:1},{a:2},{a:3}];
//        var res = alasql('SELECT ROW SUM(a), SUM(a) FROM ?',[data]);
        var res = alasql('SELECT ROW SUM(a), SUM(a) FROM ?',[data]);
//        console.log(res);
        assert.deepEqual(res,[7,7]);
    	done();
    });

    it("1a. different COUNT()s", function(done) {
    	var data = [{a:1},{a:1},{a:2},{a:3}];
        var res = alasql('SELECT ROW COUNT(a), COUNT(DISTINCT a) FROM ?',[data]);
//        console.log(res);
        assert.deepEqual(res,[4,3]);
    	done();
    });

    it("2. SUM() vs SUM(DISTINCT a)", function(done) {
    	var data = [{a:1},{a:1},{a:2},{a:3}];
        var res = alasql('SELECT ROW SUM(a), SUM(DISTINCT a) FROM ?',[data]);
//        console.log(res);
        assert.deepEqual(res,[7,6]);
    	done();
    });

if(false) {
    it("3. VAR() and STDDEV(a)", function(done) {
    	var data = [{a:1},{a:1},{a:2},{a:3}];
        var res = alasql('SELECT ROW VAR(a), STDEV(a) FROM ?',[data]);
        console.log(res);
        assert.deepEqual(res,[1,2]);
    	done();
    });
}
});