1 files changed, 126 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_prepare24.py b/src/third_party/wiredtiger/test/suite/test_prepare24.py
new file mode 100644
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+++ b/src/third_party/wiredtiger/test/suite/test_prepare24.py
@@ -0,0 +1,126 @@
+#!/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 wiredtiger, wttest
+from wtscenario import make_scenarios
+
+# test_prepare24.py
+# Test prepare commit after eviction failure.
+class test_prepare24(wttest.WiredTigerTestCase):
+    conn_config = 'timing_stress_for_test=[failpoint_eviction_fail_after_reconciliation]'
+
+    format_values = [
+        ('column', dict(key_format='r', value_format='S')),
+        #('column_fix', dict(key_format='r', value_format='8t')),
+        ('row_integer', dict(key_format='i', value_format='S')),
+    ]
+
+    delete = [
+        ('delete', dict(delete=True)),
+        ('non-delete', dict(delete=False)),
+    ]
+
+    scenarios = make_scenarios(format_values, delete)
+
+    def test_prepare24(self):
+        uri = "table:test_prepare24"
+        self.session.create(uri, 'key_format=' + self.key_format + ',value_format=' + self.value_format)
+
+        if self.value_format == '8t':
+             value_a = 97
+             value_b = 98
+        else:
+             value_a = "a"
+             value_b = "b"
+
+        # Pin oldest timestamp to 1
+        self.conn.set_timestamp('oldest_timestamp=' + self.timestamp_str(1))
+
+        cursor = self.session.open_cursor(uri)
+        session2 = self.conn.open_session()
+        evict_cursor = session2.open_cursor(uri, None, 'debug=(release_evict)')
+        ts = 0
+        for i in range (1, 1001):
+            # Insert a value
+            self.session.begin_transaction()
+            cursor[i] = value_a
+            self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(ts + 10))
+
+            if self.delete:
+                self.session.begin_transaction()
+                cursor.set_key(i)
+                cursor.remove()
+                self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(ts + 20))
+
+            # Do a prepared update
+            self.session.begin_transaction()
+            cursor[i] = value_b
+            self.session.prepare_transaction('prepare_timestamp=' + self.timestamp_str(ts + 30))
+            cursor.reset()
+
+            # Evict the page
+            session2.begin_transaction('ignore_prepare=true,read_timestamp=' + self.timestamp_str(ts + 10))
+            self.assertEquals(evict_cursor[i], value_a)
+            evict_cursor.reset()
+            session2.rollback_transaction()
+
+            # Commit the prepared transaction
+            self.session.timestamp_transaction('commit_timestamp=' + self.timestamp_str(ts + 30))
+            self.session.timestamp_transaction('durable_timestamp=' + self.timestamp_str(ts + 40))
+            self.session.commit_transaction()
+
+            # Evict the page again
+            session2.begin_transaction('ignore_prepare=true,read_timestamp=' + self.timestamp_str(ts + 10))
+            self.assertEquals(evict_cursor[i], value_a)
+            evict_cursor.reset()
+            session2.rollback_transaction()
+
+            # Verify we can still read back value a
+            self.session.begin_transaction('read_timestamp=' + self.timestamp_str(ts + 10))
+            self.assertEquals(cursor[i], value_a)
+            self.session.rollback_transaction()
+
+            # Verify we can still read back the deletion
+            if self.delete:
+                self.session.begin_transaction('read_timestamp=' + self.timestamp_str(ts + 20))
+                if self.value_format == '8t':
+                    self.assertEquals(cursor[i], 0)
+                else:
+                    cursor.set_key(i)
+                    self.assertEquals(cursor.search(), wiredtiger.WT_NOTFOUND)
+                self.session.rollback_transaction()
+            
+            # Verify we can still read back the prepared update
+            self.session.begin_transaction('read_timestamp=' + self.timestamp_str(ts + 30))
+            self.assertEquals(cursor[i], value_b)
+            self.session.rollback_transaction()
+            
+            ts += 40
+
+if __name__ == '__main__':
+    wttest.run()