public async Task SecretProviderCachingExtensions_TwoCallsWithinCacheInterval_ShouldGetSameValueTwice()
        {
            // Arrange
            string secretKeyValue     = Guid.NewGuid().ToString("N");
            var    testSecretProvider = new TestSecretProviderStub(secretKeyValue);
            string keyName            = "MyValue";

            // Act
            ICachedSecretProvider cachedSecretProvider = testSecretProvider.WithCaching(TimeSpan.FromSeconds(3));
            var firstValue = await cachedSecretProvider.Get(keyName);

            testSecretProvider.SecretValue = Guid.NewGuid().ToString("N"); // Change actual value on the internal secret provider !
            var secondValue = await cachedSecretProvider.Get(keyName);

            // Assert
            Assert.Equal(firstValue, secondValue);
            Assert.Equal(1, testSecretProvider.CallsMadeSinceCreation);
        }
        public async Task SecretProviderCachingExtensions_TwoCallsOutsideCacheInterval_ShouldGetDifferentValue()
        {
            // Arrange
            string secretKeyValue     = Guid.NewGuid().ToString("N");
            var    testSecretProvider = new TestSecretProviderStub(secretKeyValue);
            var    memCache           = new MemoryCache(new MemoryCacheOptions());
            string keyName            = "MyValue";

            // Act
            ICachedSecretProvider cachedSecretProvider = testSecretProvider.WithCaching(TimeSpan.FromMilliseconds(100));
            var firstValue = await cachedSecretProvider.Get(keyName);

            await Task.Delay(TimeSpan.FromMilliseconds(150));

            string newSecretValue = Guid.NewGuid().ToString("N");

            testSecretProvider.SecretValue = newSecretValue; // Change actual value on the internal secret provider !
            var secondValue = await cachedSecretProvider.Get(keyName);

            // Assert
            Assert.Equal(secretKeyValue, firstValue);
            Assert.Equal(newSecretValue, secondValue);
            Assert.Equal(2, testSecretProvider.CallsMadeSinceCreation);
        }