/// ------------------------------------------------------------------------------------
/// <summary>
/// Opens a stream to write the given file in the given mode.
/// </summary>
/// <param name="filename">The fully-qualified file name</param>
/// <param name="mode">The <see>FileMode</see> to use</param>
/// <returns>A stream with write access</returns>
/// ------------------------------------------------------------------------------------
Stream IFileOS.OpenStreamForWrite(string filename, FileMode mode)
{
if (mode != FileMode.Open && mode != FileMode.OpenOrCreate)
{
throw new NotImplementedException("Haven't implemented the mocked version of this method for file mode " + mode);
}
if (!((IFileOS)this).FileExists(filename))
{
if (mode == FileMode.OpenOrCreate)
{
AddFile(filename, string.Empty, Encoding.ASCII);
}
else
{
throw new FileNotFoundException("Could not find file " + filename);
}
}
MockFile finfo = GetFileInfo(filename, FileLockType.Write);
MemoryStream stream = new MemoryStream(10);
StreamWriter sw = new StreamWriter(stream, finfo.Encoding);
sw.Flush();
stream.Seek(0, SeekOrigin.Begin);
finfo.AddStream(stream);
return(stream);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Opens a memory stream to read m_FileContents using the encoding (m_FileEncoding)
/// that was set at the time the file was added.
/// </summary>
/// <param name="filename">Not used</param>
/// <returns>A stream with read access</returns>
/// ------------------------------------------------------------------------------------
Stream IFileOS.OpenStreamForRead(string filename)
{
MockFile finfo = GetFileInfo(filename, FileLockType.Read);
//string fileContents = finfo.Contents;
//byte[] contents = Encoding.Unicode.GetBytes(fileContents);
MemoryStream stream = new MemoryStream(finfo.ContentsAsBytes, true);
stream.Seek(0, SeekOrigin.Begin);
finfo.AddStream(stream);
return(stream);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Gets the writer.
/// </summary>
/// <param name="filename">The filename.</param>
/// <param name="encoding">The encoding.</param>
/// <returns></returns>
/// ------------------------------------------------------------------------------------
TextWriter IFileOS.GetWriter(string filename, Encoding encoding)
{
if (!((IFileOS)this).FileExists(filename))
{
AddFile(filename, string.Empty, encoding);
}
MockFile finfo = GetFileInfo(filename, FileLockType.Write);
Assert.AreEqual(finfo.Encoding, encoding);
StringWriter writer = new StringWriter(new StringBuilder());
finfo.AddStream(writer);
return(writer);
}
/// ------------------------------------------------------------------------------------
/// <summary>
/// Opens a TextReader on the given file
/// </summary>
/// <param name="filename">The fully-qualified filename</param>
/// <param name="encoding">The encoding to use for interpreting the contents</param>
/// ------------------------------------------------------------------------------------
TextReader IFileOS.GetReader(string filename, Encoding encoding)
{
MockFile finfo = GetFileInfo(filename, FileLockType.Read);
// Make sure the encoding of the file is the same as the requested type.
// However, it is possible that we want an ASCII encoded file opened in the magic
// code page to turn it into unicode.
Assert.IsTrue(finfo.Encoding == encoding ||
((finfo.Encoding == Encoding.ASCII || finfo.Encoding == Encoding.UTF8) &&
encoding == Encoding.GetEncoding(FileUtils.kMagicCodePage)));
StringReader reader = new StringReader(finfo.Contents.TrimStart('\ufeff'));
finfo.AddStream(reader);
return(reader);
}