alasql/test/test014.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 014', function() {
	it('Indices', function(done){
	var db = new alasql.Database("db");
		db.exec('DROP TABLE IF EXISTS test1');
		db.exec('DROP TABLE IF EXISTS test2');

		db.exec('CREATE TABLE test1 (a int, b int)');
		db.exec('INSERT INTO test1 VALUES (1,1)');
		db.exec('INSERT INTO test1 VALUES (1,7)');
		db.exec('INSERT INTO test1 VALUES (2,2)');
		db.exec('INSERT INTO test1 VALUES (3,3)');

		db.exec('CREATE TABLE test2 (a int, c int)');
		db.exec('INSERT INTO test2 VALUES (1,5)');
		db.exec('INSERT INTO test2 VALUES (2,6)');

		var res = db.exec('SELECT test1.a,b,test2.c FROM test1 LEFT JOIN test2 ON test1.a = test2.a '+
			" WHERE test1.a = 1");
		assert.deepEqual([ { a: 1, b: 1, c: 5 }, { a: 1, b: 7, c: 5 } ], res);
//		assert.equal(1,Object.keys(db.tables.test1.indices).length);
		assert.equal(1,Object.keys(db.tables.test2.indices).length);
		//console.log(db.tables.test1.indices);

		var res = db.exec('SELECT test1.a,b,test2.c FROM test1 LEFT JOIN test2 ON test1.a = test2.a '+
			" WHERE test1.a = 2");
		assert.deepEqual([ { a: 2, b: 2, c: 6 } ],res);
//		assert.equal(1,Object.keys(db.tables.test1.indices).length);
		assert.equal(1,Object.keys(db.tables.test2.indices).length);
		done();
	});
});