diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_bug008.py')
-rw-r--r-- | src/third_party/wiredtiger/test/suite/test_bug008.py | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_bug008.py b/src/third_party/wiredtiger/test/suite/test_bug008.py new file mode 100644 index 00000000000..8f0526d9cef --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_bug008.py @@ -0,0 +1,161 @@ +#!/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_bug008.py +# Regression tests. + +import wiredtiger, wttest +from helper import simple_populate, key_populate, value_populate +from wtscenario import check_scenarios + +# Tests for invisible updates. +class test_bug008(wttest.WiredTigerTestCase): + scenarios = check_scenarios([ + ('fix', dict(fmt='key_format=r,value_format=8t', empty=1)), + ('row', dict(fmt='key_format=S', empty=0)), + ('var', dict(fmt='key_format=r', empty=0)) + ]) + + # Verify cursor search and search-near operations on a file with a set of + # on-page visible records, and a set of insert-list invisible records. + def test_search_invisible_one(self): + uri = 'file:test_bug008' # This is a btree layer test. + + # Populate the tree and reopen the connection, forcing it to disk + # and moving the records to an on-page format. + simple_populate(self, uri, self.fmt, 100) + self.reopen_conn() + + # Begin a transaction, and add some additional records. + self.session.begin_transaction() + cursor = self.session.open_cursor(uri, None) + for i in range(100, 140): + cursor[key_populate(cursor, i)] = value_populate(cursor, i) + + # Open a separate session and cursor. + s = self.conn.open_session() + cursor = s.open_cursor(uri, None) + + # Search for an invisible record. + cursor.set_key(key_populate(cursor, 130)) + if self.empty: + # Invisible updates to fixed-length column-store objects are + # invisible to the reader, but the fact that they exist past + # the end of the initial records causes the instantiation of + # empty records: confirm successful return of an empty row. + cursor.search() + self.assertEqual(cursor.get_key(), 130) + self.assertEqual(cursor.get_value(), 0) + else: + # Otherwise, we should not find any matching records. + self.assertEqual(cursor.search(), wiredtiger.WT_NOTFOUND) + + # Search-near for an invisible record, which should succeed, returning + # the last visible record. + cursor.set_key(key_populate(cursor, 130)) + cursor.search_near() + if self.empty: + # Invisible updates to fixed-length column-store objects are + # invisible to the reader, but the fact that they exist past + # the end of the initial records causes the instantiation of + # empty records: confirm successful return of an empty row. + cursor.search() + self.assertEqual(cursor.get_key(), 130) + self.assertEqual(cursor.get_value(), 0) + else: + # Otherwise, we should find the closest record for which we can see + # the value. + self.assertEqual(cursor.get_key(), key_populate(cursor, 100)) + self.assertEqual(cursor.get_value(), value_populate(cursor, 100)) + + # Verify cursor search and search-near operations on a file with a set of + # on-page visible records, a set of insert-list visible records, and a set + # of insert-list invisible records. (The reason I'm adding this slightly + # different test is because I want to confirm that if search positions the + # the cursor in the insert list with a set of invisible updates, the right + # fallback happens, whether the correct position is in the page slots or + # the insert list.) + def test_search_invisible_two(self): + uri = 'file:test_bug008' # This is a btree layer test. + + # Populate the tree and reopen the connection, forcing it to disk + # and moving the records to an on-page format. + simple_populate(self, uri, self.fmt, 100) + self.reopen_conn() + + # Add some additional visible records. + cursor = self.session.open_cursor(uri, None) + for i in range(100, 120): + cursor[key_populate(cursor, i)] = value_populate(cursor, i) + cursor.close() + + # Begin a transaction, and add some additional records. + self.session.begin_transaction() + cursor = self.session.open_cursor(uri, None) + for i in range(120, 140): + cursor[key_populate(cursor, i)] = value_populate(cursor, i) + + # Open a separate session and cursor. + s = self.conn.open_session() + cursor = s.open_cursor(uri, None) + + # Search for an invisible record. + cursor.set_key(key_populate(cursor, 130)) + if self.empty: + # Invisible updates to fixed-length column-store objects are + # invisible to the reader, but the fact that they exist past + # the end of the initial records causes the instantiation of + # empty records: confirm successful return of an empty row. + cursor.search() + self.assertEqual(cursor.get_key(), 130) + self.assertEqual(cursor.get_value(), 0) + else: + # Otherwise, we should not find any matching records. + self.assertEqual(cursor.search(), wiredtiger.WT_NOTFOUND) + + # Search-near for an invisible record, which should succeed, returning + # the last visible record. + cursor.set_key(key_populate(cursor, 130)) + cursor.search_near() + if self.empty: + # Invisible updates to fixed-length column-store objects are + # invisible to the reader, but the fact that they exist past + # the end of the initial records causes the instantiation of + # empty records: confirm successful return of an empty row. + cursor.search() + self.assertEqual(cursor.get_key(), 130) + self.assertEqual(cursor.get_value(), 0) + else: + # Otherwise, we should find the closest record for which we can see + # the value. + self.assertEqual(cursor.get_key(), key_populate(cursor, 119)) + self.assertEqual(cursor.get_value(), value_populate(cursor, 119)) + + +if __name__ == '__main__': + wttest.run() |