import 'reflect-metadata';
import { DataSource } from '../../../src/data-source/DataSource';
import { closeTestingConnections, createTestingConnections } from '../../utils/test-utils';
import { Post } from './entity/Post';

describe('github issues > #1733 Postgresql driver does not detect/support varying without length specified', () => {
	let connections: DataSource[];
	before(async () => {
		connections = await createTestingConnections({
			entities: [__dirname + '/entity/*{.js,.ts}'],
			enabledDrivers: ['postgres'],
			schemaCreate: true,
			dropSchema: true,
		});
	});
	after(() => closeTestingConnections(connections));

	it('should correctly synchronize schema when varchar column length is not specified', () =>
		Promise.all(
			connections.map(async (connection) => {
				const queryRunner = connection.createQueryRunner();
				let table = await queryRunner.getTable('post');

				table!.findColumnByName('name')!.length.should.be.empty;
				table!.findColumnByName('name2')!.length.should.be.equal('255');

				const postMetadata = connection.getMetadata(Post);
				const column1 = postMetadata.findColumnWithPropertyName('name')!;
				const column2 = postMetadata.findColumnWithPropertyName('name2')!;
				column1.length = '500';
				column2.length = '';

				await connection.synchronize();

				table = await queryRunner.getTable('post');
				table!.findColumnByName('name')!.length.should.be.equal('500');
				table!.findColumnByName('name2')!.length.should.be.empty;

				column1.length = '';
				column2.length = '255';

				await connection.synchronize();

				table = await queryRunner.getTable('post');
				table!.findColumnByName('name')!.length.should.be.empty;
				table!.findColumnByName('name2')!.length.should.be.equal('255');

				await queryRunner.release();
			}),
		));
});