public void TestDeleteStorage()
{
DynamicDefaultDiskStorage storage = CreateInternalCacheDirStorage();
Assert.IsNull(storage._currentState.DiskStorageDelegate);
storage.DeleteOldStorageIfNecessary();
storage.Get();
DirectoryInfo cacheDir = new DirectoryInfo(ApplicationData.Current.LocalCacheFolder.Path);
DirectoryInfo versionDir = GetStorageSubdirectory(
new DirectoryInfo(Path.Combine(cacheDir.FullName, _baseDirectoryName)), _version);
Assert.IsTrue(versionDir.Exists);
FileInfo dummyFile = new FileInfo(Path.Combine(versionDir.FullName, "dummy"));
Assert.IsTrue(dummyFile.CreateEmpty());
Assert.IsTrue(dummyFile.Exists);
storage.DeleteOldStorageIfNecessary();
dummyFile.Refresh();
versionDir.Refresh();
Assert.IsFalse(dummyFile.Exists);
Assert.IsFalse(versionDir.Exists);
Assert.IsFalse(versionDir.Parent.Exists);
}
