diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_bug004.py')
-rw-r--r-- | src/third_party/wiredtiger/test/suite/test_bug004.py | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_bug004.py b/src/third_party/wiredtiger/test/suite/test_bug004.py new file mode 100644 index 00000000000..5f8d35f2404 --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_bug004.py @@ -0,0 +1,95 @@ +#!/usr/bin/env python +# +# Public Domain 2014-2015 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_bug004.py +# Regression tests. + +import wiredtiger, wttest +from helper import key_populate, value_populate + +# Check to make sure we see the right versions of overflow keys and values +# when they are deleted in reconciliation without having been instantiated +# in the system. +class test_bug004(wttest.WiredTigerTestCase): + # This is a btree layer test, test files, ignore tables. + uri = 'file:test_ovfl_key' + + # Use a small page size because we want to create overflow items + config = 'allocation_size=512,' +\ + 'leaf_page_max=512,value_format=S,key_format=S' + + nentries = 30 + + def test_bug004(self): + # Create the object, fill with overflow keys and values. + self.session.create(self.uri, self.config) + c1 = self.session.open_cursor(self.uri, None) + for i in range(1, self.nentries): + c1[key_populate(c1, i) + 'abcdef' * 100] = \ + value_populate(c1, i) + 'abcdef' * 100 + c1.close() + + # Verify the object, force it to disk, and verify the on-disk version. + self.session.verify(self.uri) + self.reopen_conn() + self.session.verify(self.uri) + + # Create a new session and start a transaction to force the engine + # to access old versions of the key/value pairs. + tmp_session = self.conn.open_session(None) + tmp_session.begin_transaction("isolation=snapshot") + + # Load the object and use truncate to delete a set of records. (I'm + # using truncate because it doesn't instantiate keys, all other ops + # currently do -- that's unlikely to change, but is a problem for the + # test going forward.) + c1 = self.session.open_cursor(self.uri, None) + c1.set_key(key_populate(c1, self.nentries - 5) + 'abcdef' * 100) + c2 = self.session.open_cursor(self.uri, None) + c2.set_key(key_populate(c2, self.nentries + 5) + 'abcdef' * 100) + self.session.truncate(None, c1, c2, None) + c1.close() + c2.close() + + # Checkpoint, freeing overflow blocks. + self.session.checkpoint() + + # Use the snapshot cursor to retrieve the old key/value pairs + c1 = tmp_session.open_cursor(self.uri, None) + c1.set_key(key_populate(c1, 1) + 'abcdef' * 100) + c1.search() + for i in range(2, self.nentries): + c1.next() + self.assertEquals( + c1.get_key(), key_populate(c1, i) + 'abcdef' * 100) + self.assertEquals( + c1.get_value(), value_populate(c1, i) + 'abcdef' * 100) + + +if __name__ == '__main__': + wttest.run() |