/// <param name="fsTarget">- the target fs of the view fs.</param>
/// <returns>return the ViewFS File context to be used for tests</returns>
/// <exception cref="System.Exception"/>
public static FileSystem SetupForViewFileSystem(Configuration conf, FileSystemTestHelper
fileSystemTestHelper, FileSystem fsTarget)
{
Path targetOfTests = fileSystemTestHelper.GetTestRootPath(fsTarget);
// In case previous test was killed before cleanup
fsTarget.Delete(targetOfTests, true);
fsTarget.Mkdirs(targetOfTests);
// Set up viewfs link for test dir as described above
string testDir = fileSystemTestHelper.GetTestRootPath(fsTarget).ToUri().GetPath();
LinkUpFirstComponents(conf, testDir, fsTarget, "test dir");
// Set up viewfs link for home dir as described above
SetUpHomeDir(conf, fsTarget);
// the test path may be relative to working dir - we need to make that work:
// Set up viewfs link for wd as described above
string wdDir = fsTarget.GetWorkingDirectory().ToUri().GetPath();
LinkUpFirstComponents(conf, wdDir, fsTarget, "working dir");
FileSystem fsView = FileSystem.Get(FsConstants.ViewfsUri, conf);
fsView.SetWorkingDirectory(new Path(wdDir));
// in case testdir relative to wd.
Org.Mortbay.Log.Log.Info("Working dir is: " + fsView.GetWorkingDirectory());
return(fsView);
}
public virtual void SetUp()
{
fsTarget = FileSystem.GetLocal(new Configuration());
fsTarget.Mkdirs(new Path(fileSystemTestHelper.GetTestRootPath(fsTarget), "dir1"));
conf = ViewFileSystemTestSetup.CreateConfig();
fsView = ViewFileSystemTestSetup.SetupForViewFileSystem(conf, fileSystemTestHelper
, fsTarget);
conf.Set("fs.defaultFS", FsConstants.ViewfsUri.ToString());
}
/// <summary>delete the test directory in the target fs</summary>
/// <exception cref="System.Exception"/>
public static void TearDown(FileSystemTestHelper fileSystemTestHelper, FileSystem
fsTarget)
{
Path targetOfTests = fileSystemTestHelper.GetTestRootPath(fsTarget);
fsTarget.Delete(targetOfTests, true);
}
public virtual void TestGetFileChecksum()
{
// Create two different files in HDFS
fileSystemTestHelper.CreateFile(fHdfs, someFile);
FileSystemTestHelper.CreateFile(fHdfs, fileSystemTestHelper.GetTestRootPath(fHdfs
, someFile + "other"), 1, 512);
// Get checksum through ViewFS
FileChecksum viewFSCheckSum = vfs.GetFileChecksum(new Path("/vfstmp/someFileForTestGetFileChecksum"
));
// Get checksum through HDFS.
FileChecksum hdfsCheckSum = fHdfs.GetFileChecksum(new Path(someFile));
// Get checksum of different file in HDFS
FileChecksum otherHdfsFileCheckSum = fHdfs.GetFileChecksum(new Path(someFile + "other"
));
// Checksums of the same file (got through HDFS and ViewFS should be same)
NUnit.Framework.Assert.AreEqual("HDFS and ViewFS checksums were not the same", viewFSCheckSum
, hdfsCheckSum);
// Checksum of different files should be different.
NUnit.Framework.Assert.IsFalse("Some other HDFS file which should not have had the same "
+ "checksum as viewFS did!", viewFSCheckSum.Equals(otherHdfsFileCheckSum));
}
public virtual void TearDown()
{
fsTarget.Delete(fileSystemTestHelper.GetTestRootPath(fsTarget), true);
}
