public void GetFeatureFlagByID_ExistingFeatureFlag_ReturnsFeatureFlag()
        {
            Guid        featureFlagID  = Guid.NewGuid();
            FeatureFlag newFeatureFlag = new FeatureFlag
            {
                ID     = featureFlagID,
                Name   = "Flag1",
                Status = true
            };

            featureFlagRepository.Upsert(newFeatureFlag);

            FeatureFlag featureFlag = featureFlagRepository.GetFeatureFlagByID(featureFlagID).Result;

            Assert.AreEqual(newFeatureFlag.ID, featureFlag.ID);
            Assert.AreEqual(newFeatureFlag.Name, featureFlag.Name);
            Assert.AreEqual(newFeatureFlag.Status, featureFlag.Status);
        }