Import wiredtiger-wiredtiger-2.7.0-505-g7fea169.tar.gz from wiredtiger branch mongodb-3.4

ref: 44463c5..7fea169

WT-2355       Fix minor scratch buffer usage in logging.
WT-2348       xargs -P isn't portable
WT-2347       Java: schema format edge cases
WT-2344       OS X compiler warning
WT-2342       Enhance wtperf to support background create and drop operations
WT-2340       Add logging guarantee assertions, whitespace
WT-2339       format post-rebalance verify failure (stress run #11586)
WT-2338       Disable using pre-allocated log files when backup cursor is open
WT-2335       NULL pointer crash in config_check_search with invalid configuration string
WT-2333       Add a flag so drop doesn't block
WT-2332       Bug in logging write-no-sync mode
WT-2331       Checking of search() result for reference cursors before join()
WT-2328       schema drop does direct unlink, it should use a block manager interface.
WT-2326       Change WTPERF to use new memory allocation functions instead of the standard
WT-2321       WT-2321: race between eviction and worker threads on the eviction queue
WT-2320       Only check copyright when cutting releases
WT-2316       stress test failure: WT_CURSOR.prev out-of-order returns
WT-2314       page-swap error handling is inconsistent
WT-2313       sweep-server: conn_dhandle.c, 610: dhandle != conn->cache->evict_file_next
WT-2312       re-creating a deleted column-store page can corrupt the in-memory tree
WT-2308       custom extractor for ref_cursors in join cursor
WT-2305       Fix coverity scan issues on 23/12/2015
WT-2296       New log algorithm needs improving for sync/flush settings
WT-2295       WT_SESSION.create does a full-scan of the main table
WT-2287       WT_SESSION.rebalance
WT-2275       broken DB after application crash
WT-2267       Improve wtperf throttling implementation to provide steady load
WT-2247       variable-length column-store in-memory page splits
WT-2242       WiredTiger treats dead trees the same as other trees in eviction
WT-2142       Connection cleanup in Python tests
WT-2073       metadata cleanups
WT-1801       Add a directory sync after rollback of a WT_SESSION::rename operation
WT-1517       schema format edge cases
SERVER-22064  Coverity analysis defect 77699: Unchecked return value
SERVER-21619  sys-perf: WT crash during core_workloads_WT execution

1 files changed, 87 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/test/suite/test_dupc.py b/src/third_party/wiredtiger/test/suite/test_dupc.py
new file mode 100644
index 00000000000..ec55a36df4c
--- /dev/null
+++ b/src/third_party/wiredtiger/test/suite/test_dupc.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+#
+# Public Domain 2014-2016 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_dupc.py
+#       test cursor duplication
+#
+
+import os, time
+import wiredtiger, wttest
+from helper import complex_populate, key_populate, simple_populate
+from wtscenario import check_scenarios
+
+# Test session.open_cursor with cursor duplication.
+class test_duplicate_cursor(wttest.WiredTigerTestCase):
+    name = 'test_dupc'
+    nentries = 1000
+
+    config = 'key_format='
+
+    scenarios = check_scenarios([
+        ('file-r', dict(uri='file:', fmt='r')),
+        ('file-S', dict(uri='file:', fmt='S')),
+        ('table-r', dict(uri='table:', fmt='r')),
+        ('table-S', dict(uri='table:', fmt='S'))
+    ])
+
+    # Iterate through an object, duplicate the cursor and checking that it
+    # matches the original and is set to the same record.
+    def iterate(self, uri):
+        cursor = self.session.open_cursor(uri, None, None)
+        next = 0
+        while True:
+            nextret = cursor.next()
+            if nextret != 0:
+                break
+            next += 1
+            self.assertEqual(cursor.get_key(), key_populate(cursor, next))
+            dupc = self.session.open_cursor(None, cursor, None)
+            self.assertEqual(cursor.compare(dupc), 0)
+            self.assertEqual(dupc.get_key(), key_populate(dupc, next))
+            cursor.close()
+            cursor = dupc
+        self.assertEqual(next, self.nentries)
+        self.assertEqual(nextret, wiredtiger.WT_NOTFOUND)
+        cursor.close()
+
+    def test_duplicate_cursor(self):
+        uri = self.uri + self.name
+
+        # A simple, one-file file or table object.
+        simple_populate(self, uri, self.config + self.fmt, self.nentries)
+        self.iterate(uri)
+        self.session.drop(uri, None)
+
+        # A complex, multi-file table object.
+        if self.uri == "table:":
+            complex_populate(self, uri, self.config + self.fmt, self.nentries)
+            self.iterate(uri)
+            self.session.drop(uri, None)
+
+if __name__ == '__main__':
+    wttest.run()