public void testTruncatedHeader() throws IOException, DatabaseException {
/* Create a log file */
FileManagerTestUtils.createLogFile(fileManager, envImpl, FILE_SIZE);
/* Truncate the header */
RandomAccessFile file0 =
new RandomAccessFile(
fileManager.getFullFileName(0, FileManager.JE_SUFFIX),
FileManager.FileMode.READWRITE_MODE.getModeValue());
file0.getChannel().truncate(FileManager.firstLogEntryOffset() / 2);
file0.close();
try {
fileManager.getFileHandle(0);
fail("Should see assertion");
} catch (DatabaseException e) {
}
}
/** See if we can catch a file with an invalid header. */
public void testBadHeader() throws IOException, DatabaseException {
/* First try a bad environment r/w. */
try {
FileManager test = new FileManager(envImpl, new File("xxyy"), true);
fail("expect creation of " + test + "to fail.");
} catch (LogException e) {
/* should throw */
}
/* Next try a bad environment r/o. */
try {
FileManager test = new FileManager(envImpl, new File("xxyy"), false);
fail("expect creation of " + test + "to fail.");
} catch (DatabaseException e) {
/* should throw */
}
/* Now create a file, but mess up the header. */
FileManagerTestUtils.createLogFile(fileManager, envImpl, FILE_SIZE);
byte[] badData = new byte[] {1, 1};
int headerSize = FileManager.firstLogEntryOffset();
RandomAccessFile file0 =
new RandomAccessFile(
fileManager.getFullFileName(0, FileManager.JE_SUFFIX),
FileManager.FileMode.READWRITE_MODE.getModeValue());
file0.write(badData);
file0.close();
fileManager.clear();
try {
FileHandle file0Handle = fileManager.getFileHandle(0L);
fail("expect to catch a checksum error");
} catch (DbChecksumException e) {
}
}