alasql/test/test046.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 046', function() {
	describe('FROM as parameter', function(){

		var years = [
			{yearid: 2010},
			{yearid: 2011},
			{yearid: 2012},
			{yearid: 2013},
			{yearid: 2014},
			{yearid: 2015},
			{yearid: 2016},
			{yearid: 2017},
		];

		it('FROM array of objects', function(done){
			var res = alasql('SELECT COLUMN * FROM ? AS t WHERE t.yearid>?',[years,2014])
			assert.deepEqual([2015,2016,2017], res);
			done();
		});

		var data = [
			[2014, 1, 1],
			[2015, 2, 1],
			[2016, 3, 1],
			[2017, 4, 2],
			[2018, 5, 3],
			[2019, 6, 3]
		];
		it('FROM array of arrays', function(done){
			var res = alasql('SELECT VALUE SUM([1]) FROM ? d WHERE [0]>2016', [data]);
			assert.equal(15, res);
			done();
		});

		it('queryArrayOfArrays()', function(done){
			var res = alasql('SELECT MATRIX [1] AS 0,[1]+[2] AS [1] FROM ? d WHERE [0]>2016', [data]);
			assert.deepEqual([ [ 4, 6 ], [ 5, 8 ], [ 6, 9 ] ], res);
			done();
		});

		it('queryArrayOfArrays and filter()', function(done) {
			var res1 = alasql('SELECT * FROM ? d WHERE [0]>2016', [data]);
			var res2 = data.filter(function(a){return a[0]>2016});
			assert.deepEqual(res1,res2);
			done();
		});

		it('FROM array of arrays', function(done){
			var res = alasql('SELECT MATRIX [2] AS 0, SUM([1]) AS 1 \
				FROM ? d \
				WHERE [0]>2016 \
				GROUP BY [2] ', [data]);
			assert.deepEqual(res,[ [ 2, 4 ], [ 3, 11 ] ]);
			done();
		});


	});
});