alasql/test/test190.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 190 - SELECT TOP 10 PERCENT FROM ?', function() {
    it("1. From ?", function(done) {
    	var data = [];
    	for(var i=0;i<200;i++) {
    		data.push({a:i});
    	}
    	var res = alasql('SELECT TOP 5 PERCENT * FROM ? ORDER BY a DESC ',[data]);
    	assert.deepEqual(res,[ 
    		{ a: 199 },
			{ a: 198 },
			{ a: 197 },
			{ a: 196 },
			{ a: 195 },
			{ a: 194 },
			{ a: 193 },
			{ a: 192 },
			{ a: 191 },
			{ a: 190 } 
		]);
    	done();
    });

    it("2. From ?", function(done) {
    	var data = [];
    	for(var i=0;i<200;i++) {
    		data.push(i);
    	}
    	var res = alasql('SELECT COLUMN TOP 5 PERCENT _ FROM ? ORDER BY _ DESC ',[data]);
    	assert.deepEqual(res,[ 199,198,197,196,195,194,193,192,191,190]);
    	done();
    });
});