public static void OnRollbackNoScope()
{
#if DEBUG
Console.WriteLine("FileIsNew_OnRollbackNoScope");
#endif
var managedPath =
"Data" +
Path.DirectorySeparatorChar +
"edit-file-is-new-on-rollback-no-scope.txt";
// Simulate a preparation
var manager = new DeleteFileManager(
managedPath);
ExceptionAssert.IsThrown(
() =>
{
FileStream stream = (FileStream)FileManagerReflection.Invoke(
manager,
"OnPrepareFileStream",
new string[] { managedPath });
},
expectedType: typeof(TargetInvocationException),
expectedMessage: "Exception has been thrown by the target of an invocation.",
expectedInnerType: typeof(FileNotFoundException),
expectedInnerMessage: "Could not find file '" +
Path.Combine(Environment.CurrentDirectory, managedPath) +
"'.");
}
private void Clean()
{
state = State.Cleaning;
MainBtn.Content = "Stop";
deletedFiles = 0;
deletedFilesLenght = 0;
LogTextBox.Document.Blocks.Clear();
LogTextBox.Document.Blocks.Add(new Paragraph(new Run("Deleting...")));
if (deleteManager == null)
{
deleteManager = new DeleteFileManager();
deleteManager.OnFileDeleted += FileDeleted;
deleteManager.OnFileNotDeleted += FileNotDeleted;
deleteManager.OnFinished += CleanFinished;
}
DeleteFileWrapper wrapper = new DeleteFileWrapper();
wrapper.context = context;
wrapper.filesList = filesToDelete;
Thread thread = new Thread(deleteManager.Work);
thread.Start(wrapper);
}
internal static void CurrentTransactionIsNull()
{
#if DEBUG
Console.WriteLine("CurrentTransactionIsNull");
#endif
var managedPath =
"Data" +
Path.DirectorySeparatorChar +
"delete-file-already-exists-no-current-transaction.txt";
var manager = new DeleteFileManager(
managedPath);
FileStream stream = (FileStream)FileManagerReflection.Invoke(
manager,
"OnPrepareFileStream",
new string[] { managedPath });
ExceptionAssert.IsThrown(
() => { manager.EnlistVolatile(EnlistmentOptions.None); },
expectedType: typeof(InvalidOperationException),
expectedMessage: String.Format(
"Cannot enlist resource {0}: no ambient transaction detected.",
managedPath));
}
/// <summary>
/// Tests the constructor when parameter <i>managedPath</i> is <b>null</b>.
/// </summary>
public static void ManagedPathIsNull()
{
#if DEBUG
Console.WriteLine("Constructor_ManagedPathIsNull");
#endif
string managedPath = null;
ArgumentExceptionAssert.IsThrown(
() => { var manager = new DeleteFileManager(managedPath); },
expectedType: typeof(ArgumentNullException),
expectedPartialMessage: ArgumentExceptionAssert.NullPartialMessage,
expectedParameterName: "managedPath");
}
public static void OnRollbackNoScope()
{
#if DEBUG
Console.WriteLine("FileAlreadyExists_OnRollbackNoScope");
#endif
var managedPath =
"Data" +
Path.DirectorySeparatorChar +
"delete-file-already-exists-on-rollback-no-scope.txt";
// Simulate a preparation
var manager = new DeleteFileManager(
managedPath);
FileStream stream = (FileStream)FileManagerReflection.Invoke(
manager,
"OnPrepareFileStream",
new string[] { managedPath });
FileManagerReflection.SetStream(manager, stream);
stream = null;
// Simulate a rollback (NOP)
// We want to access the managed file to inspect its
// edited contents, hence we need to dispose
// its manager.
manager.Dispose();
// Expected results
Assert.IsTrue(File.Exists(managedPath));
using (stream = File.OpenRead(managedPath))
{
using (StreamReader reader = new StreamReader(stream))
{
var content = reader.ReadLine();
Assert.AreEqual("existing-file", content);
}
}
}
public static void Dispose()
{
#if DEBUG
Console.WriteLine("Dispose");
#endif
var managedPath =
"Data" +
Path.DirectorySeparatorChar +
"delete-file-already-exists-dispose.txt";
// Simulate a preparation
var manager = new DeleteFileManager(
managedPath);
Assert.AreEqual(false, FileManagerReflection.GetField(manager, "disposed"));
FileStream stream = (FileStream)FileManagerReflection.Invoke(
manager,
"OnPrepareFileStream",
new string[] { managedPath });
FileManagerReflection.SetStream(manager, stream);
stream = null;
// Dispose the manager
manager.Dispose();
// Expected results
Assert.AreEqual(true, FileManagerReflection.GetField(manager, "disposed"));
// Dispose the manager, again
ExceptionAssert.IsNotThrown(
() => { manager.Dispose(); }
);
}
public static void OnCommit()
{
#if DEBUG
Console.WriteLine("FileAlreadyExists_OnCommit");
#endif
var managedPath =
"Data" +
Path.DirectorySeparatorChar +
"delete-file-already-exists-on-commit.txt";
var deleteManager = new DeleteFileManager(
managedPath);
List <FileManager> managers = new List <FileManager>
{
deleteManager
};
void results()
{
// Dispose the manager, so that
// the following call to File.Exists
// has the required permissions
// to investigate the managed file.
deleteManager.Dispose();
Assert.IsTrue(!File.Exists(managedPath));
}
void rolledBack(Exception e)
{
}
TransactionScopeHelper.Using(
managers,
results,
rolledBack);
}
