public void Controller_Contas_GerarExtrato_DevePassar()
{
// Arrange
var conta = ContaObjectMother.GetContaValida();
var extrato = conta.GerarExtrato();
_contaServiceMock.Setup(s => s.GetExtrato(conta.Id)).Returns(extrato);
// Action
var callback = _contasController.GetExtrato(conta.Id);
//Assert
_contaServiceMock.Verify(s => s.GetExtrato(conta.Id), Times.Once);
var httpResponse = callback.Should().BeOfType <OkNegotiatedContentResult <Extrato> >().Subject;
httpResponse.Content.Should().NotBeNull();
}