1 files changed, 118 insertions, 0 deletions
diff --git a/storage/tokudb/PerconaFT/ft/tests/logcursor-bad-checksum.cc b/storage/tokudb/PerconaFT/ft/tests/logcursor-bad-checksum.cc
new file mode 100644
index 00000000000..ab0ed0eaada
--- /dev/null
+++ b/storage/tokudb/PerconaFT/ft/tests/logcursor-bad-checksum.cc
@@ -0,0 +1,118 @@
+/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
+#ident "$Id$"
+/*======
+This file is part of PerconaFT.
+
+
+Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
+
+    PerconaFT is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License, version 2,
+    as published by the Free Software Foundation.
+
+    PerconaFT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
+
+----------------------------------------
+
+    PerconaFT is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License, version 3,
+    as published by the Free Software Foundation.
+
+    PerconaFT is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with PerconaFT.  If not, see <http://www.gnu.org/licenses/>.
+======= */
+
+#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
+
+#include "logger/logcursor.h"
+#include "test.h"
+
+// log a couple of timestamp entries and verify the log by walking 
+// a cursor through the log entries
+
+static void corrupt_the_checksum(void) {
+    // change the LSN in the first log entry of log 0.  this will cause an checksum error.
+    char logname[TOKU_PATH_MAX+1];
+    int r;
+    sprintf(logname,  "%s/log000000000000.tokulog%d", TOKU_TEST_FILENAME, TOKU_LOG_VERSION);
+    FILE *f = fopen(logname, "r+b"); assert(f);
+    r = fseek(f, 025, SEEK_SET); assert(r == 0);
+    char c = 100;
+    size_t n = fwrite(&c, sizeof c, 1, f); assert(n == sizeof c);
+    r = fclose(f); assert(r == 0);
+}
+
+int
+test_main (int argc, const char *argv[]) {
+    default_parse_args(argc, argv);
+
+    int r;
+    toku_os_recursive_delete(TOKU_TEST_FILENAME);
+    r = toku_os_mkdir(TOKU_TEST_FILENAME, S_IRWXU);    assert(r==0);
+    TOKULOGGER logger;
+    LSN lsn = ZERO_LSN;
+
+    // log a couple of timestamp log entries
+
+    r = toku_logger_create(&logger); 
+    assert(r == 0);
+
+    r = toku_logger_open(TOKU_TEST_FILENAME, logger);
+    assert(r == 0);
+
+    BYTESTRING bs0 = { .len = 5, .data = (char *) "hello" };
+    toku_log_comment(logger, &lsn, 0, 0, bs0);
+
+    r = toku_logger_close(&logger);
+    assert(r == 0);
+
+    // change the LSN and corrupt the checksum
+    corrupt_the_checksum();
+
+    if (!verbose) {
+        // redirect stderr
+        int devnul = open(DEV_NULL_FILE, O_WRONLY);
+        assert(devnul >= 0);
+        r = toku_dup2(devnul, fileno(stderr)); assert(r == fileno(stderr));
+        r = close(devnul); assert(r == 0);
+    }
+
+    // walk forwards
+    TOKULOGCURSOR lc = NULL;
+    struct log_entry *le;
+    
+    r = toku_logcursor_create(&lc, TOKU_TEST_FILENAME);
+    assert(r == 0 && lc != NULL);
+
+    r = toku_logcursor_next(lc, &le);
+    assert(r != 0);
+
+    r = toku_logcursor_destroy(&lc);
+    assert(r == 0 && lc == NULL);
+
+    // walk backwards
+    r = toku_logcursor_create(&lc, TOKU_TEST_FILENAME);
+    assert(r == 0 && lc != NULL);
+
+    r = toku_logcursor_prev(lc, &le);
+    assert(r != 0);
+
+    r = toku_logcursor_destroy(&lc);
+    assert(r == 0 && lc == NULL);
+
+    toku_os_recursive_delete(TOKU_TEST_FILENAME);
+
+    return 0;
+}