import { UnknownProviderError, NotProvidedCredentialsError } from './index'; describe('Error tests.', () => { test('UnknownProviderError should be defined.', () => { expect(UnknownProviderError).toBeDefined(); expect(new UnknownProviderError()).toBeInstanceOf(Error); }); test('NotProvidedCredentialsError should be defined.', () => { expect(NotProvidedCredentialsError).toBeDefined(); expect(new NotProvidedCredentialsError()).toBeInstanceOf(Error); }); });