public async Task Add_WhenAddClient_ShouldSaveClient()
{
var client = new ClientDto
{
Name = "Ivan",
LastName = "Martinez"
};
var clientDto = await _sut.AddNewClient(client);
clientDto.Should().NotBeNull();
clientDto.Id.Should().Be(1);
clientDto.Name.Should().Be("Ivan");
clientDto.LastName.Should().Be("Martinez");
}