public void File_AppendText()
{
Console.WriteLine("File.AppendText()");
var utf8 = NativeMethods.DefaultFileEncoding.BodyName.ToUpperInvariant();
string line;
var matchLine = string.Empty;
var tempFile = Path.GetTempFileName();
StreamReader streamRead;
StreamWriter streamWrite;
Console.WriteLine("Default AlphaFS Encoding: {0}", NativeMethods.DefaultFileEncoding.EncodingName);
#region Create Filestream, CreateText()
// Create filestream and append text as UTF-8, default.
using (streamWrite = File.CreateText(tempFile))
{
streamWrite.Write(UnitTestConstants.TextHelloWorld);
}
// Read filestream contents.
using (streamRead = File.OpenText(tempFile))
{
while ((line = streamRead.ReadLine()) != null)
{
Console.WriteLine("\n CreateText(): [{0}] filestream: [{1}]\n Appended: [{2}]\n Content : [{3}]", streamRead.CurrentEncoding.EncodingName, tempFile, UnitTestConstants.TextHelloWorld, line);
matchLine = line; // Catch the last line.
}
}
Assert.IsTrue(matchLine.Equals(UnitTestConstants.TextHelloWorld, StringComparison.OrdinalIgnoreCase));
#endregion // Create Filestream, CreateText()
#region AppendText() to Filestream
// Append text as UTF-8, default.
using (streamWrite = File.AppendText(tempFile))
{
streamWrite.Write(UnitTestConstants.TextGoodbyeWorld);
}
// Read filestream contents.
using (streamRead = File.OpenText(tempFile))
{
while ((line = streamRead.ReadLine()) != null)
{
Console.WriteLine("\n AppendText() as [{0}]\n Appended: [{1}]\n Content : [{2}]", utf8, UnitTestConstants.TextGoodbyeWorld, line);
}
}
// Append text as UTF-8, default.
using (streamWrite = File.AppendText(tempFile))
{
streamWrite.WriteLine(UnitTestConstants.TextUnicode);
}
// Read filestream contents.
matchLine = string.Empty;
using (streamRead = File.OpenText(tempFile))
{
while ((line = streamRead.ReadLine()) != null)
{
Console.WriteLine("\n AppendText() as [{0}]\n Appended: [{1}]\n Content : [{2}]", utf8, UnitTestConstants.TextGoodbyeWorld, line);
matchLine = line; // Catch the last line.
}
}
Assert.IsTrue(matchLine.Equals(UnitTestConstants.TextHelloWorld + UnitTestConstants.TextGoodbyeWorld + UnitTestConstants.TextUnicode, StringComparison.OrdinalIgnoreCase));
File.Delete(tempFile, true);
Assert.IsFalse(File.Exists(tempFile), "Cleanup failed: File should have been removed.");
#endregion // AppendText() to Filestream
}
