public async Task CreateAsync_WhenCalledWithValidBeer_CallsBeerServiceCreateAsync()
{
await _controller.CreateAsync(_beerRequest);
await _beerService.Received(1).CreateAsync(Arg.Is <Beer>(x =>
x.Name == _beer.Name &&
x.Style == _beer.Style &&
x.Brewery == _beer.Brewery &&
x.Abv == _beer.Abv));
}