public void Process_An_Valid_Package()
{
StreamResourceInfo info = App.GetResourceStream(new Uri(Config.ResourcePath_Valid30Package, UriKind.Relative));
Stream zipStream = info.Stream;
// Create a package inspector for the package
PackageInspector inspector = new PackageInspector();
inspector.ProcessPackage(zipStream);
Assert.IsTrue(inspector.IsValid && inspector.Package != null);
}
/// <summary>
/// Helper method to process an invalid package
/// </summary>
/// <param name="stream"></param>
private void ProcessInvalidPackage(Stream zipStream)
{
try
{
// Create a package inspector for the package
PackageInspector inspector = new PackageInspector();
inspector.ProcessPackage(zipStream);
Assert.Fail("No exception was raised when an invalid stream was processed.");
}
catch (InvalidPackageException)
{
// Expected result
Assert.IsTrue(true);
}
catch
{
Assert.Fail("Unexpected Exception when processing an invalid package.");
}
}
public void Load_Valid_Book_Into_FileSystem()
{
StreamResourceInfo info = App.GetResourceStream(new Uri(Config.ResourcePath_Valid30Package, UriKind.Relative));
Stream zipStream = info.Stream;
// Create a package inspector for the package
PackageInspector inspector = new PackageInspector();
inspector.ProcessPackage(zipStream);
// Used by subsequent tests
BookId = inspector.Package.BookId;
IDirectory directory = Context.LoadZipPackage(inspector, false);
// Verify that all the files have been saved
int fileCount = inspector.Package.FileCount;
int actualFileCount = FileCount(directory);
// Can't actually use this as some of the opf's have unreliable lists of files
//Assert.IsTrue(actualFileCount == fileCount, "Number of files in the zip package does not match the number of files loaded into FileSystem.");
Assert.IsTrue(actualFileCount > 0, "No files have been loaded.");
}
public void Access_Properties_Without_Processing()
{
// Create a package inspector for the package
PackageInspector inspector = new PackageInspector();
try
{
// Attempt to access the IsValid property
if (inspector.IsValid)
{
// Should never get here because IsValid should raise an exception
Assert.Fail("PackageInspector.IsValid should raise an exception if called without processing the stream first.");
}
}
catch (InvalidOperationException)
{
Assert.IsTrue(true);
}
catch
{
Assert.Fail("Unexpected exception");
}
}
public void Process_From_An_Null_Stream()
{
// Create a package inspector for the package
PackageInspector inspector = new PackageInspector();
ProcessInvalidPackage(null);
}
/// <summary>
/// Initiates the processing of loading a book (from a zip stream) into the FileSystem, by loading and creating
/// the book package and passing that off to the datacontext to load the rest of the book.
/// </summary>
/// <param name="zipStream">FileStream of the zip file to load the book from.</param>
private void LoadBook(FileStream zipStream)
{
// The DataContext is instatiated with a IFileSystem implementation that will determine
// where the books are stored to and retrieved from. For example, IsolatedStorage/ServerStorage
DataContext store = new DataContext(base.MainState.BookFileSystem);
// Listen to the progress the store DataContext makes
store.ProgressChanged += store_ProgressChanged;
IPackageInspector inspector;
// To ensure the FileStream is property disposed wrap it in
// a using statement.
using (FileStream fileStream = zipStream)
{
inspector = new PackageInspector();
// The inspector will pass on any progress updates to this event. We subscribe to
// it from the View to be able to update the display.
inspector.ProgressChanged += inspector_ProgressChanged;
// Process the package - this will perform an initial parse over the zip file
// to derive some basic information like its version, the bookId and Filecount.
// This method will raise some ProgressChanged events for us to update the UI.
inspector.ProcessPackage(fileStream);
// Check the file was OK.
if(!inspector.IsValid)
{
// TODO: Could be enhanced to return all the errors.
// While there could actally be more than one error in ValidationErrors
// we are only going to notify of the first.
throw new InvalidPackageException(inspector.ValidationErrors[0]);
}
else
{
// Save the book files to the store - don't bother replacing if the
// book is already there. Again this will take some time and will raise
// ProgressChanged events for us to update the UI with progress.
store.LoadZipPackage(inspector, false);
}
}
// Set the CurrentBook on View
SetCurrentBook(inspector.Package);
}
