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+#!/usr/bin/env python
+#
+# Public Domain 2014-2018 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_metadata_cursor02.py
+# Metadata cursor operations with invalid metadata
+#
+# Test metadata cursor semantics when the underlying metadata is invalid.
+# This can happen after a crash, or if part of a table is dropped separate
+# from dropping the whole table.
+class test_metadata_cursor02(wttest.WiredTigerTestCase):
+ """
+ Test metadata cursor operations with invalid metadata
+ """
+ table_name1 = 'table:t1'
+ table_name2 = 'table:t2'
+ table_name3 = 'table:t3'
+ tables = [table_name1, table_name2, table_name3]
+
+ scenarios = make_scenarios([
+ ('plain', {'metauri' : 'metadata:'}),
+ ('create', {'metauri' : 'metadata:create'}),
+ ], [
+ ('drop_colgroup', {'drop' : 'colgroup'}),
+ ('drop_file', {'drop' : 'file'}),
+ ])
+
+ # Create tables
+ def create_tables(self):
+ # Reopen to make sure we can drop anything left over from the last run
+ self.reopen_conn()
+ for name in self.tables:
+ self.session.drop(name, 'force=true')
+ self.session.create(name, 'key_format=S,value_format=S')
+
+ # Forward iteration.
+ def test_missing(self):
+ for name in self.tables:
+ self.create_tables()
+
+ # Invalidate the table by dropping part of it
+ if self.drop == 'colgroup':
+ self.session.drop('colgroup:' + name[-2:])
+ else:
+ self.session.drop('file:' + name[-2:] + '.wt')
+
+ cursor = self.session.open_cursor(self.metauri)
+ is_create_cursor = self.metauri.endswith('create')
+ count = 0
+ for k, v in cursor:
+ self.pr('Found metadata entry: ' + k)
+ if k.startswith('table:'):
+ count += 1
+ cursor.close()
+
+ if is_create_cursor:
+ self.captureerr.checkAdditionalPattern(self, 'metadata information.*not found')
+
+ # Should include the metadata and the two valid tables
+ self.assertEqual(count, self.metauri.endswith('create') and 2 or 3)
+
+if __name__ == '__main__':
+ wttest.run()