alasql/test/test243.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 243 AVG bug', function() {

  it('1. AVG bug: 3 groups with one and multiple item',function(done){

      var arr = [
            {
                person:1,
                sold:5
           },{
               person:2,
               sold:10
           },{
               person:1,
               sold:20
           },{
               person:3,
               sold:40
           }
         ];

    var res = alasql('SELECT person, avg(sold) FROM ? WHERE 1 GROUP BY person',[arr]);

//    console.log(res);
      assert(res,
        [ { person: 1, 'AVG(sold)': 12.5 },
          { person: 2, 'AVG(sold)': 10 },
          { person: 3, 'AVG(sold)': 40 } ]
        );
      done();
  });


  it('2. AVG 2 by 2 groups',function(done){

      var arr = [
            {
                person:1,
                sold:5
           },{
               person:2,
               sold:10
           },{
               person:1,
               sold:20
           },{
               person:2,
               sold:40
           }
         ];

    var res = alasql('SELECT person, avg(sold) FROM ? WHERE 1 GROUP BY person',[arr]);

//    console.log(res);
      assert(res,
      [ { person: 1, 'AVG(sold)': 12.5 },
        { person: 2, 'AVG(sold)': 25 } ]
        );
      done();
  });


});