public async Task Should_be_valid_when_job_is_requested_to_clear_cache_and_cache_is_empty()
        {
            _updateCacheJob = new UpdateCacheJob(_cache, _mockPortfolio.Object);
            await _updateCacheJob.ClearAsync();

            _cache.Get(CacheKeys.Portfolio).Should().BeNull();
        }
        public async Task Should_be_valid_when_job_is_requested_to_update_cache_and_cache_is_not_empty()
        {
            _cache.Set(CacheKeys.Portfolio, Array.Empty <byte>());
            _updateCacheJob = new UpdateCacheJob(_cache, _mockPortfolio.Object);
            _mockPortfolio.Setup(x => x.GetAsync()).ReturnsAsync(InvestmentsResponse);
            await _updateCacheJob.UpdateAsync();

            _cache.Get(CacheKeys.Portfolio).Should().NotBeNull();
        }
        public async Task Should_be_valid_when_job_is_requested_to_clear_cache()
        {
            await _cache.SetAsync(CacheKeys.Portfolio, Array.Empty <byte>());

            _updateCacheJob = new UpdateCacheJob(_cache, _mockPortfolio.Object);
            await _updateCacheJob.ClearAsync();

            _cache.Get(CacheKeys.Portfolio).Should().BeNull();
        }