public void ExceptionThrownDuringAddIntoIsolatedStorageAllowsItemToBeReaddedLater()
		{
			using (IsolatedStorageBackingStore backingStore = new IsolatedStorageBackingStore("foo", null))
			{
				ICachingInstrumentationProvider instrumentationProvider = new NullCachingInstrumentationProvider();

				Cache cache = new Cache(backingStore, instrumentationProvider);

				try
				{
					try
					{
						cache.Add("my", new NonSerializableClass());
						Assert.Fail("Should have thrown exception internally to Cache.Add");
					}
					catch (Exception)
					{
						cache.Add("my", new SerializableClass());
						Assert.IsTrue(cache.Contains("my"));
					}
				}
				finally
				{
					backingStore.Flush();
				}
			}
		}
		public void ItemAddedPreviousToFailedAddIsRemovedCompletelyIfSecondAddFails()
		{
			using (IsolatedStorageBackingStore backingStore = new IsolatedStorageBackingStore("foo", null))
			{
				ICachingInstrumentationProvider instrumentationProvider = new NullCachingInstrumentationProvider();

				Cache cache = new Cache(backingStore, instrumentationProvider);

				cache.Add("my", new SerializableClass());

				try
				{
					try
					{
						cache.Add("my", new NonSerializableClass());
						Assert.Fail("Should have thrown exception internally to Cache.Add");
					}
					catch (Exception)
					{
						Assert.IsFalse(cache.Contains("my"));
						Assert.AreEqual(0, backingStore.Count);

						Hashtable isolatedStorageContents = backingStore.Load();
						Assert.AreEqual(0, isolatedStorageContents.Count);
					}
				}
				finally
				{
					backingStore.Flush();
				}
			}
		}