public void File_AppendAllLinesThenReadAllLinesShouldReturnSameCollection()
{
var file = Path.GetTempFileName();
var sample = new [] { "line one", "line two" };
try
{
File.AppendAllLines(file, sample);
CollectionAssert.AreEquivalent(sample, File.ReadAllLines(file).ToArray());
}
finally
{
File.Delete(file);
}
}
private void DumpAppendAllLines(bool isLocal)
{
#region Setup
Console.WriteLine("\n=== TEST {0} ===", isLocal ? UnitTestConstants.Local : UnitTestConstants.Network);
var tempFolder = Path.GetTempPath();
var tempPath = Path.Combine(tempFolder, "File.Delete-" + Path.GetRandomFileName());
if (!isLocal)
{
tempPath = Path.LocalToUnc(tempPath);
}
// Create file and append text.
var tempFile = Path.GetTempFileName();
if (!isLocal)
{
tempFile = Path.LocalToUnc(tempFile);
}
IEnumerable <string> allLines = new[] { UnitTestConstants.TenNumbers, UnitTestConstants.TextHelloWorld, UnitTestConstants.TextGoodbyeWorld, UnitTestConstants.TextUnicode };
#endregion // Setup
try
{
#region AppendAllLines
Console.WriteLine("\nDefault AlphaFS Encoding: [{0}]", NativeMethods.DefaultFileEncoding.EncodingName);
// Create real UTF-8 file.
File.AppendAllLines(tempFile, allLines, NativeMethods.DefaultFileEncoding);
// Read filestream contents.
using (var streamRead = File.OpenText(tempFile))
{
var line = streamRead.ReadToEnd();
Console.WriteLine("\nCreated: [{0}] filestream: [{1}]\n\n\tAppendAllLines content:\n{2}", streamRead.CurrentEncoding.EncodingName, tempFile, line);
foreach (var line2 in allLines)
{
Assert.IsTrue(line.Contains(line2));
}
}
// Append
File.AppendAllLines(tempFile, new[] { "Append 1" });
File.AppendAllLines(tempFile, allLines);
File.AppendAllLines(tempFile, new[] { "Append 2" });
File.AppendAllLines(tempFile, allLines);
// Read filestream contents.
using (var streamRead = File.OpenText(tempFile))
{
var line = streamRead.ReadToEnd();
Console.WriteLine("AppendAllLines content:\n{0}", line);
foreach (var line2 in allLines)
{
Assert.IsTrue(line.Contains(line2));
}
}
#endregion // AppendAllLines
}
finally
{
File.Delete(tempFile, true);
Assert.IsFalse(File.Exists(tempFile), "Cleanup failed: File should have been removed.");
}
Console.WriteLine();
}