Function expectError

test/33.database.aggregate.js:476–482

(exception, fn)

	describe('should propagate exceptions', function () {
		const exceptions = [new TypeError('foobar'), new Error('baz'), { yup: 'ok' }, 'foobarbazqux', '', null, 123.4];
		const expectError = (exception, fn) => {
			try { fn(); } catch (ex) {
				expect(ex).to.equal(exception);
				return;
			}
			throw new TypeError('Expected aggregate to throw an exception');
		};

		specify('thrown in the start() function', function () {
			exceptions.forEach((exception, index) => {