public async void Can_Get_From_Cache_After_Cached()
        {
            var guid       = Guid.NewGuid();
            var guidString = guid.ToString("N").ToUpper();
            var raw        = new GuidData {
                Guid = guid, User = "******", Expire = DateTimeOffset.UtcNow.AddDays(30).ToUnixTimeSeconds()
            };
            var cached = JsonConvert.SerializeObject(raw);

            _cacheMock.GetAsync(Arg.Is <string>(x => x == "GuidData_" + guidString)).Returns(Encoding.ASCII.GetBytes(cached));

            var actual = await _repo.GetGuidData(guid);

            Assert.NotNull(actual);
            Assert.Equal(guid, actual.Guid);

            await _dbMock.DidNotReceive().GetGuidData(Arg.Any <Guid>());
        }
        public async Task Can_Get_Returns_400_BadRequest_When_No_Guid_Given()
        {
            var guid       = Guid.NewGuid();
            var guidString = guid.ToString("N").ToUpper();
            var raw        = new { user = "******", expire = DateTimeOffset.UtcNow.AddDays(30).ToUnixTimeSeconds().ToString() };

            var req = GetHttpRequestMessage(raw, $"guid/", HttpMethod.Get);

            var resp = await _client.SendAsync(req);

            Assert.Equal(HttpStatusCode.MethodNotAllowed, resp.StatusCode);

            var actual = JsonConvert.DeserializeObject <ValidationProblemDetails>(await resp.Content.ReadAsStringAsync());

            Assert.Null(actual);

            await _repoMock.DidNotReceive().GetGuidData(Arg.Any <Guid>());
        }