alasql/test/test109.js

AlaSQL.js - JavaScript SQL database library for relational and graph data manipulation with support of localStorage, IndexedDB, and Excel

//
// tselect01.js
// Test for select
//

if(typeof exports === 'object') {
	var assert = require("assert");
	var alasql = require('..');
};


describe('Test 109 - DELETE', function(){
	it('DELETE without conditions', function(done) {

		var db = new alasql.Database();

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

		var res = db.exec('DELETE FROM test');

		assert.deepEqual([], db.tables.test.data);
		done();		
	});


	it('DELETE with conditions', function(done) {

		var db = new alasql.Database();

		db.exec('CREATE TABLE test (a int, b int)');
//		console.log(db);
		db.tables.test.data = [{a:100,b:100}];
//		try{
		db.exec('INSERT INTO test (a,b) VALUES (1,10)');
//		} catch(err) {console.error(err)};
//		console.log(db.tables.test);
		db.exec('INSERT INTO test VALUES (2,20)');
		db.exec('INSERT INTO test VALUES (3,30)');
		db.exec('INSERT INTO test VALUES (4,40)');
		db.exec('INSERT INTO test VALUES (5,50)');

		var res = db.exec('DELETE FROM test WHERE b>=30');

//		console.log(res,1);
		assert.equal(4, res);
		assert.equal(2, db.tables.test.data.length);

		done();		
	});

});