private void TestIntersectingHardLinkAndReplace(bool isLongPath, FileShare fileShare)
{
var folderPath = this.testPath;
if (true == isLongPath)
{
folderPath = this.ExtendPath(folderPath);
}
var filePath = Path.Combine(folderPath, this.testFileName);
Assert.IsTrue(!isLongPath || filePath.Length > 260, "file path must be greater than max path size.");
var hardLinkedFilePath = Path.Combine(folderPath, this.testHardLinkedFileName);
Assert.IsTrue(!isLongPath || hardLinkedFilePath.Length > 260, "hard linked file path must be greater than max path size.");
var replaceFilePath = Path.Combine(folderPath, this.testReplaceFileName);
Assert.IsTrue(!isLongPath || replaceFilePath.Length > 260, "replace file path must be greater than max path size.");
var backupFilePath = Path.Combine(folderPath, this.testBackupFileName);
Assert.IsTrue(!isLongPath || backupFilePath.Length > 260, "backup file path must be greater than max path size.");
LogHelper.Log("FabricDirectory.Create {0}", folderPath);
FabricDirectory.CreateDirectory(folderPath);
LogHelper.Log("FabricFile.Create {0}", filePath);
using (StreamWriter streamWriter = new StreamWriter(FabricFile.Create(filePath)))
{
LogHelper.Log("Write {0}", this.testString);
streamWriter.WriteLine(this.testString);
streamWriter.Flush();
}
using (StreamWriter streamWriter = new StreamWriter(FabricFile.Create(replaceFilePath)))
{
LogHelper.Log("Write {0}", this.testNewString);
streamWriter.WriteLine(this.testNewString);
streamWriter.Flush();
}
FabricFile.CreateHardLink(hardLinkedFilePath, filePath);
using (StreamReader hardLinkReader0 = new StreamReader(FabricFile.Open(hardLinkedFilePath, FileMode.Open, FileAccess.Read, fileShare)))
{
var hardLinkContent0 = hardLinkReader0.ReadLine();
Assert.AreEqual <string>(this.testString, hardLinkContent0, "after replace hard link file must have the old content.");
try
{
FabricFile.Replace(replaceFilePath, filePath, backupFilePath, false);
Assert.Fail();
}
catch (FileLoadException)
{
}
}
}
internal static void CreateHardLinkOrCopyFile(string sourceFileName, string destinationFileName)
{
if (!FabricFile.Exists(sourceFileName))
{
return;
}
// Since the source file won't be changed, we can simply create a hardlink
if (!FabricFile.CreateHardLink(destinationFileName, sourceFileName))
{
// Hardlink can fail, e.g. if the destination is on another drive or the drive isn't NTFS.
// Fallback to a full file copy.
FabricFile.Copy(sourceFileName, destinationFileName, overwrite: true);
}
}