public async void TestRetrieveSingleEnvironment()
        {
            StaticTestingMethods.IoCEnableMocking();
            var testObj  = new StorageValueRetriever();
            var envName  = "TestEnvName";
            var envValue = "TestEnvValue";

            Environment.SetEnvironmentVariable(envName, envValue);

            var keyPair = new KeyValuePair <ValueStorageType, string> (ValueStorageType.EnvironmentVariable, envName);

            var actual = await testObj.GetValueAsync(keyPair.Key, keyPair.Value);

            Assert.Equal(envValue, actual);
        }
        public async void TestRetrieveSingleSsmUnencrypted()
        {
            StaticTestingMethods.IoCEnableMocking();
            var testObj          = new StorageValueRetriever();
            var expectedResponse = "expectedReturn";
            var response         = new GetParameterResponse()
            {
                Parameter = new Parameter()
                {
                    Value = expectedResponse
                }
            };

            var keyPair = new KeyValuePair <ValueStorageType, string> (ValueStorageType.SystemManagerParameterStoreUnencrypted, "ssm/key/string");

            testObj.StoreManager.GetParameterAsync(Arg.Any <GetParameterRequest> ()).Returns(response);

            var actual = await testObj.GetValueAsync(keyPair.Key, keyPair.Value);;

            Assert.Equal(expectedResponse, actual);
            await testObj.StoreManager.Received().GetParameterAsync(Arg.Is <GetParameterRequest> (x => x.WithDecryption == false));
        }