/** Test the OfflineEditsViewer */
@Test
public void testGenerated() throws IOException {
LOG.info("START - testing with generated edits");
nnHelper.startCluster(buildDir + "/dfs/");
// edits generated by nnHelper (MiniDFSCluster), should have all op codes
// binary, XML, reparsed binary
String edits = nnHelper.generateEdits();
String editsParsedXml = cacheDir + "/editsParsed.xml";
String editsReparsed = cacheDir + "/editsReparsed";
// parse to XML then back to binary
assertEquals(0, runOev(edits, editsParsedXml, "xml", false));
assertEquals(0, runOev(editsParsedXml, editsReparsed, "binary", false));
// judgment time
assertTrue("Edits " + edits + " should have all op codes", hasAllOpCodes(edits));
assertTrue(
"Generated edits and reparsed (bin to XML to bin) should be same",
filesEqualIgnoreTrailingZeros(edits, editsReparsed));
// removes edits so do this at the end
nnHelper.shutdownCluster();
LOG.info("END");
}
@Test
public void testRecoveryMode() throws IOException {
LOG.info("START - testing with generated edits");
nnHelper.startCluster(buildDir + "/dfs/");
// edits generated by nnHelper (MiniDFSCluster), should have all op codes
// binary, XML, reparsed binary
String edits = nnHelper.generateEdits();
// Corrupt the file by truncating the end
FileChannel editsFile = new FileOutputStream(edits, true).getChannel();
editsFile.truncate(editsFile.size() - 5);
String editsParsedXml = cacheDir + "/editsRecoveredParsed.xml";
String editsReparsed = cacheDir + "/editsRecoveredReparsed";
String editsParsedXml2 = cacheDir + "/editsRecoveredParsed2.xml";
// Can't read the corrupted file without recovery mode
assertEquals(-1, runOev(edits, editsParsedXml, "xml", false));
// parse to XML then back to binary
assertEquals(0, runOev(edits, editsParsedXml, "xml", true));
assertEquals(0, runOev(editsParsedXml, editsReparsed, "binary", false));
assertEquals(0, runOev(editsReparsed, editsParsedXml2, "xml", false));
// judgment time
assertTrue("Test round trip", filesEqualIgnoreTrailingZeros(editsParsedXml, editsParsedXml2));
// removes edits so do this at the end
nnHelper.shutdownCluster();
LOG.info("END");
}