/// <exception cref="System.Exception"/>
public virtual void TestGetFileChecksum(Path foo, int appendLength)
{
int appendRounds = 16;
FileChecksum[] fc = new FileChecksum[appendRounds + 1];
DFSTestUtil.CreateFile(dfs, foo, appendLength, Replication, 0L);
fc[0] = dfs.GetFileChecksum(foo);
for (int i = 0; i < appendRounds; i++)
{
DFSTestUtil.AppendFile(dfs, foo, appendLength);
fc[i + 1] = dfs.GetFileChecksum(foo);
}
for (int i_1 = 0; i_1 < appendRounds + 1; i_1++)
{
FileChecksum checksum = dfs.GetFileChecksum(foo, appendLength * (i_1 + 1));
NUnit.Framework.Assert.IsTrue(checksum.Equals(fc[i_1]));
}
}
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));
}
