WT-3257 Add test for log=recover settings (#3718)

* WT-3257 Add test for log=recover settings

* Uncomment test now that the fix is merged.

* Whitespace

1 files changed, 118 insertions, 0 deletions

diff --git a/test/suite/test_txn18.py b/test/suite/test_txn18.py
new file mode 100644
index 00000000000..ec3cc7bae00
--- /dev/null
+++ b/test/suite/test_txn18.py
@@ -0,0 +1,118 @@
+#!/usr/bin/env python
+#
+# Public Domain 2014-2017 MongoDB, Inc.
+# Public Domain 2008-2014 WiredTiger, Inc.
+#
+# This is free and unencumbered software released into the public domain.
+#
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+#
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+#
+# test_txn18.py
+#   Transactions: test recovery settings
+#
+
+import fnmatch, os, shutil, time
+from suite_subprocess import suite_subprocess
+import wiredtiger, wttest
+
+class test_txn18(wttest.WiredTigerTestCase, suite_subprocess):
+    t1 = 'table:test_txn18'
+    create_params = 'key_format=i,value_format=i'
+    conn_config = 'log=(archive=false,enabled,file_max=100K),' + \
+                'transaction_sync=(method=dsync,enabled)'
+    conn_recerror = conn_config + ',log=(recover=error)'
+    conn_recon = conn_config + ',log=(recover=on)'
+
+    def simulate_crash(self, olddir, newdir):
+        ''' Simulate a crash from olddir and restart in newdir. '''
+        # with the connection still open, copy files to new directory
+        shutil.rmtree(newdir, ignore_errors=True)
+        os.mkdir(newdir)
+        for fname in os.listdir(olddir):
+            fullname = os.path.join(olddir, fname)
+            # Skip lock file on Windows since it is locked
+            if os.path.isfile(fullname) and \
+                "WiredTiger.lock" not in fullname and \
+                "Tmplog" not in fullname and \
+                "Preplog" not in fullname:
+                shutil.copy(fullname, newdir)
+
+    def test_recovery(self):
+        ''' Run the recovery settings '''
+
+        # Here's the strategy:
+        #    - Create a table (t1).
+        #    - Insert data into t1.
+        #    - Simulate a crash.
+        #    - Make recovery run with recovery=error
+        # and make sure it detects an error since recovery is needed
+        #    - Make recovery run with recovery=on.
+        #    - Do a clean shutdown and restart with recovery=error
+        # and make sure is successful.
+        #
+        # If we aren't tracking file IDs properly, it's possible that
+        # we'd end up apply the log records for t2 to table t1.
+        self.session.create(self.t1, self.create_params)
+        #
+        # Since we're logging, we need to flush out the meta-data file
+        # from the create.
+        self.session.checkpoint()
+        c = self.session.open_cursor(self.t1, None, None)
+        for i in range(10000):
+            c[i] = i + 1
+        c.close()
+        olddir = "."
+        newdir = "RESTART"
+        errdir = "ERROR"
+        self.simulate_crash(olddir, errdir)
+        self.simulate_crash(olddir, newdir)
+        # close the original connection
+        self.close_conn()
+        # Trying to open the error directory with recover=error should return an error.
+        msg = '/recovery must be run/'
+        self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
+            lambda:self.wiredtiger_open(errdir, self.conn_recerror), msg)
+
+        # If recover=error is run on the directory and returns an error,
+        # make sure when we subsequenty open with recover=on it properly
+        # recovers all the data.
+        self.assertRaisesWithMessage(wiredtiger.WiredTigerError,
+            lambda:self.wiredtiger_open(newdir, self.conn_recerror), msg)
+
+        # Opening with recover=on should succeed.
+        self.conn = self.wiredtiger_open(newdir, self.conn_recon)
+        # Make sure the data we added originally is there
+        self.session = self.setUpSessionOpen(self.conn)
+        c = self.session.open_cursor(self.t1, None, None)
+        i = 0
+        for key, value in c:
+            self.assertEqual(i, key)
+            self.assertEqual(i+1, value)
+            i += 1
+        self.assertEqual(i, 10000)
+        c.close()
+        self.close_conn()
+        # Reopening with recover=error after a clean shutdown should succeed.
+        self.conn = self.wiredtiger_open(newdir, self.conn_recerror)
+
+if __name__ == '__main__':
+    wttest.run()