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();
}
}
}