public virtual void TestVerifyChecksum()
{
Path testPath = new Path(TestRootDir, "testPath");
Path testPath11 = new Path(TestRootDir, "testPath11");
FSDataOutputStream fout = localFs.Create(testPath);
fout.Write(Runtime.GetBytesForString("testing"));
fout.Close();
fout = localFs.Create(testPath11);
fout.Write(Runtime.GetBytesForString("testing you"));
fout.Close();
// Exercise some boundary cases - a divisor of the chunk size
// the chunk size, 2x chunk size, and +/-1 around these.
FileSystemTestHelper.ReadFile(localFs, testPath, 128);
FileSystemTestHelper.ReadFile(localFs, testPath, 511);
FileSystemTestHelper.ReadFile(localFs, testPath, 512);
FileSystemTestHelper.ReadFile(localFs, testPath, 513);
FileSystemTestHelper.ReadFile(localFs, testPath, 1023);
FileSystemTestHelper.ReadFile(localFs, testPath, 1024);
FileSystemTestHelper.ReadFile(localFs, testPath, 1025);
localFs.Delete(localFs.GetChecksumFile(testPath), true);
Assert.True("checksum deleted", !localFs.Exists(localFs.GetChecksumFile
(testPath)));
//copying the wrong checksum file
FileUtil.Copy(localFs, localFs.GetChecksumFile(testPath11), localFs, localFs.GetChecksumFile
(testPath), false, true, localFs.GetConf());
Assert.True("checksum exists", localFs.Exists(localFs.GetChecksumFile
(testPath)));
bool errorRead = false;
try
{
FileSystemTestHelper.ReadFile(localFs, testPath, 1024);
}
catch (ChecksumException)
{
errorRead = true;
}
Assert.True("error reading", errorRead);
//now setting verify false, the read should succeed
localFs.SetVerifyChecksum(false);
string str = FileSystemTestHelper.ReadFile(localFs, testPath, 1024).ToString();
Assert.True("read", "testing".Equals(str));
}