public void Conta_Controller_Delete_DeveFuncionar()
{
var atualizado = true;
_contaServicoMock.Setup(c => c.Deletar(_conta.Object)).Returns(atualizado);
IHttpActionResult callback = _contasController.Deletar(_conta.Object);
var httpResponse = callback.Should().BeOfType <OkNegotiatedContentResult <bool> >().Subject;
_contaServicoMock.Verify(s => s.Deletar(_conta.Object), Times.Once);
httpResponse.Content.Should().BeTrue();
}