import 'reflect-metadata';
import {
	createTestingConnections,
	closeTestingConnections,
	reloadTestingDatabases,
} from '../../utils/test-utils';
import { DataSource } from '../../../src/data-source/DataSource';
import { expect } from 'chai';
import { InsertValuesMissingError } from '../../../src/error/InsertValuesMissingError';
import { Test, DEFAULT_VALUE } from './entity/Test';

describe('github issues > #3111 Inserting with query builder attempts to insert a default row when values is empty array', () => {
	let connections: DataSource[];
	before(
		async () =>
			(connections = await createTestingConnections({
				entities: [__dirname + '/entity/*{.js,.ts}'],
				schemaCreate: true,
				dropSchema: true,
			})),
	);
	beforeEach(() => reloadTestingDatabases(connections));
	after(() => closeTestingConnections(connections));

	it('should not insert with default values on .values([])', () =>
		Promise.all(
			connections.map(async (connection) => {
				const repo = connection.getRepository(Test);
				await repo.createQueryBuilder().insert().values([]).execute();
				const rowsWithDefaultValue = await repo.find({
					where: { value: DEFAULT_VALUE },
				});
				expect(rowsWithDefaultValue).to.have.lengthOf(0);
			}),
		));

	it('should still error on missing .values()', () =>
		Promise.all(
			connections.map(async (connection) => {
				const repo = connection.getRepository(Test);
				await repo
					.createQueryBuilder()
					.insert()
					.execute()
					.should.be.rejectedWith(InsertValuesMissingError);
			}),
		));
});