public async Task ShouldRemoveExpiredItemFromCache()
        {
            // Arrange
            await _sut.RemoveExpiredKeys().ConfigureAwait(false);

            var          key     = _fixture.FormatKey($"TagCacheTests:{nameof(ShouldRemoveExpiredItemFromCache)}");
            const string value   = "Test Value";
            var          expires = DateTime.Now.AddSeconds(3);

            const string tag1 = "tag1";
            const string tag2 = "tag2";

            await _sut.SetItem(key, value, expires, tag1, tag2).ConfigureAwait(false);

            var result = await _sut.GetItem <string>(key).ConfigureAwait(false);

            result.ShouldNotBeNull();
            result.Value.ShouldBe(value);

            Thread.Sleep(1000);

            result = await _sut.GetItem <string>(key).ConfigureAwait(false);

            result.ShouldNotBeNull();
            result.Value.ShouldBe(value);

            // Act
            Thread.Sleep(2500);
            await _sut.RemoveExpiredKeys().ConfigureAwait(false);

            Thread.Sleep(500);
            result = await _sut.GetItem <string>(key).ConfigureAwait(false);

            // Assert
            result.ShouldBeNull();
        }