1 files changed, 100 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_rollback_to_stable29.py b/src/third_party/wiredtiger/test/suite/test_rollback_to_stable29.py
new file mode 100755
index 00000000000..d40ef12d7c8
--- /dev/null
+++ b/src/third_party/wiredtiger/test/suite/test_rollback_to_stable29.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+#
+# Public Domain 2014-present 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.
+
+import os, threading, time
+from wtthread import checkpoint_thread
+import wiredtiger
+from wiredtiger import stat
+from wtdataset import SimpleDataSet
+from wtscenario import make_scenarios
+from helper import copy_wiredtiger_home, simulate_crash_restart
+from test_rollback_to_stable01 import test_rollback_to_stable_base
+
+# test_rollback_to_stable29.py
+# Test that the rollback to stable to verify the history store order when an out of order to a tombstone.
+class test_rollback_to_stable29(test_rollback_to_stable_base):
+    conn_config = 'cache_size=25MB,statistics=(all),statistics_log=(json,on_close,wait=1),log=(enabled=true)'
+
+    key_format_values = [
+        ('column', dict(key_format='r')),
+        ('integer_row', dict(key_format='i')),
+    ]
+
+    scenarios = make_scenarios(key_format_values)
+
+    def test_rollback_to_stable(self):
+        uri = 'table:test_rollback_to_stable29'
+        nrows = 100
+
+        # Create our table.
+        ds = SimpleDataSet(self, uri, 0, key_format=self.key_format, value_format='S',config='log=(enabled=false)')
+        ds.populate()
+
+        value_a = 'a' * 100
+        value_b = 'b' * 100
+        value_c = 'c' * 100
+        value_d = 'd' * 100
+
+        # Pin oldest and stable to timestamp 1.
+        self.conn.set_timestamp('oldest_timestamp=' + self.timestamp_str(1) +
+            ',stable_timestamp=' + self.timestamp_str(1))
+
+        self.large_updates(uri, value_a, ds, nrows, False, 10)
+        self.large_removes(uri, ds, nrows, False, 30)
+        self.large_updates(uri, value_b, ds, nrows, False, 40)
+        self.check(value_b, uri, nrows, 40)
+        self.large_updates(uri, value_c, ds, nrows, False, 50)
+        self.check(value_c, uri, nrows, 50)
+        self.evict_cursor(uri, nrows, value_c)
+
+        # Insert an out of order update.
+        self.session.breakpoint()
+        self.large_updates(uri, value_d, ds, nrows, False, 20)
+
+        self.check(value_a, uri, nrows, 10)
+        self.check(value_d, uri, nrows, 40)
+        self.check(value_d, uri, nrows, 50)
+        self.check(value_d, uri, nrows, 20)
+
+        # Pin stable to timestamp 10.
+        self.conn.set_timestamp('stable_timestamp=' + self.timestamp_str(10))
+        self.session.checkpoint()
+
+        # Simulate a crash by copying to a new directory(RESTART).
+        simulate_crash_restart(self, ".", "RESTART")
+
+        self.check(value_a, uri, nrows, 10)
+
+        stat_cursor = self.session.open_cursor('statistics:', None, None)
+        hs_removed = stat_cursor[stat.conn.txn_rts_hs_removed][2]
+        stat_cursor.close()
+
+        self.assertGreaterEqual(hs_removed, 3 * nrows)
+
+if __name__ == '__main__':
+    wttest.run()