alasql/test/test051.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 51 - Foreign Keys)', function() {


if(false) {

	describe('FOREIGN KEYS with one component and PRIMARY KEY', function(){

		it('CREATE TABLE with FOREIGN KEYS and INSERT', function(done){

			alasql('DROP TABLE IF EXISTS persons');
			alasql('DROP TABLE IF EXISTS citiess');
			alasql('CREATE TABLE persons (name STRING, city STRING, FOREIGN KEY (city) REFERENCES cities(city))');
			alasql('CREATE TABLE cities (city STRING PRIMARY KEY)')
			alasql('INSERT INTO cities VALUES ("Paris")');
			alasql('INSERT INTO cities VALUES ("Rome")');
			alasql('INSERT INTO persons VALUES ("Peter", "Rome")');
			alasql('INSERT INTO persons VALUES ("Telma", "Paris")');
			var res = alasql.queryValue('SELECT COUNT (*) FROM cities');
			assert.equals(res,2);
			var res = alasql.queryValue('SELECT COUNT (*) FROM persons');
			assert.equals(res,2);
			done();
		});

		it('Insert wrong data without references', function(done){

			assert.throws(function(){
				alasql('INSERT INTO persons VALUES ("Angela", "Berlin")');
			});
			done();
		});

		it('UPDATE wrong data without references', function(done){

			assert.throws(function(){
				alasql('UPDATE persons SET city = "Warsaw" WHERE name = "Peter"');
			});
			done();
		});

	});

	describe('FOREIGN KEYS with one component without PRIMARY KEY', function(){

		it('The same, but without PRIMARY KEY', function(done){

			alasql('DROP TABLE IF EXISTS persons');
			alasql('DROP TABLE IF EXISTS citiess');
			alasql('CREATE TABLE persons (name STRING, city STRING, FOREIGN KEY (city) REFERENCES cities(city))');
			alasql('CREATE TABLE cities (city STRING)')
			alasql('INSERT cities VALUES ("Paris")');
			alasql('INSERT cities VALUES ("Rome")');
			alasql('INSERT INTO persons VALUES ("Peter", "Rome")');
			alasql('INSERT INTO persons VALUES ("Telma", "Paris")');
			var res = alasql.queryValue('SELECT COUNT (*) FROM cities');
			assert.equals(res,2);
			var res = alasql.queryValue('SELECT COUNT (*) FROM persons');
			assert.equals(res,2);

			done();
		});

		it('Insert wrong data without references', function(done){

			assert.throws(function(){
				alasql('INSERT INTO persons VALUES ("Angela", "Berlin")');
			});
			done();
		});

		it('UPDATE wrong data without references', function(done){

			assert.throws(function(){
				alasql('UPDATE persons SET city = "Warsaw" WHERE name = "Peter"');
			});
			done();
		});

	});

	describe('FOREIGN KEYS with two components and PRIMARY KEY', function(){

		it('CREATE TABLE with FOREIGN KEYS and INSERT', function(done){

			alasql('DROP TABLE IF EXISTS persons');
			alasql('DROP TABLE IF EXISTS citiess');
			alasql('CREATE TABLE persons (name STRING, country STRING, city STRING,'+
				' FOREIGN KEY (country, city) REFERENCES cities(country, city))');
			alasql('CREATE TABLE cities (country STRING, city STRING, PRIMARY KEY(country, city))')
			alasql('INSERT INTO cities VALUES ("France","Paris")');
			alasql('INSERT INTO cities VALUES ("Italy","Rome")');
			alasql('INSERT INTO persons VALUES ("Peter", "Italy","Rome")');
			alasql('INSERT INTO persons VALUES ("Telma", "France","Paris")');
			var res = alasql.queryValue('SELECT COUNT (*) FROM cities');
			assert.equals(res,2);
			var res = alasql.queryValue('SELECT COUNT (*) FROM persons');
			assert.equals(res,2);
			done();
		});

		it('Insert wrong data without references', function(done){

			assert.throws(function(){
				alasql('INSERT INTO persons VALUES ("Angela", "Germany","Berlin")');
			});

			assert.throws(function(){
				alasql('INSERT INTO persons VALUES ("Angela", "Italy","Berlin")');
			});

			alasql('INSERT INTO persons VALUES ("Angela", "Italy","Rome")');

			var res = alasql.queryValue('SELECT COUNT (*) FROM persons');
			assert.equals(res,3);

			done();
		});

		it('UPDATE wrong data without references', function(done){

			assert.throws(function(){
				alasql('UPDATE persons SET city = "Warsaw" WHERE name = "Peter"');
			});

			assert.throws(function(){
				alasql('UPDATE persons SET country = "Poland" WHERE name = "Peter"');
			});
			done();
		});
	});

	describe('FOREIGN KEYS with two components and without PRIMARY KEY', function(){

		it('CREATE TABLE with FOREIGN KEYS and INSERT', function(done){

			alasql('DROP TABLE IF EXISTS persons');
			alasql('DROP TABLE IF EXISTS citiess');
			alasql('CREATE TABLE persons (name STRING, country STRING, city STRING,'+
				' FOREIGN KEY (country, city) REFERENCES cities(country, city))');
			alasql('CREATE TABLE cities (country STRING, city STRING, PRIMARY KEY(country, city))')
			alasql('INSERT INTO cities VALUES ("France","Paris")');
			alasql('INSERT INTO cities VALUES ("Italy","Rome")');
			alasql('INSERT INTO persons VALUES ("Peter", "Italy","Rome")');
			alasql('INSERT INTO persons VALUES ("Telma", "France","Paris")');
			var res = alasql.queryValue('SELECT COUNT (*) FROM cities');
			assert.equals(res,2);
			var res = alasql.queryValue('SELECT COUNT (*) FROM persons');
			assert.equals(res,2);
			done();
		});

		it('Insert wrong data without references', function(done){

			assert.throws(function(){
				alasql('INSERT INTO persons VALUES ("Angela", "Germany","Berlin")');
			});

			assert.throws(function(){
				alasql('INSERT INTO persons VALUES ("Angela", "Italy","Berlin")');
			});

			alasql('INSERT INTO persons VALUES ("Angela", "Italy","Rome")');

			var res = alasql.queryValue('SELECT COUNT (*) FROM persons');
			assert.equals(res,3);

			done();
		});

		it('UPDATE wrong data without references', function(done){

			assert.throws(function(){
				alasql('UPDATE persons SET city = "Warsaw" WHERE name = "Peter"');
			});

			assert.throws(function(){
				alasql('UPDATE persons SET country = "Poland" WHERE name = "Peter"');
			});
			done();
		});
	});
}
});