138 lines
4.6 KiB
Python
138 lines
4.6 KiB
Python
#!/usr/bin/env python
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#
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# Public Domain 2014-2016 MongoDB, Inc.
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# Public Domain 2008-2014 WiredTiger, Inc.
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#
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# This is free and unencumbered software released into the public domain.
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#
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# Anyone is free to copy, modify, publish, use, compile, sell, or
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# distribute this software, either in source code form or as a compiled
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# binary, for any purpose, commercial or non-commercial, and by any
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# means.
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#
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# In jurisdictions that recognize copyright laws, the author or authors
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# of this software dedicate any and all copyright interest in the
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# software to the public domain. We make this dedication for the benefit
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# of the public at large and to the detriment of our heirs and
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# successors. We intend this dedication to be an overt act of
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# relinquishment in perpetuity of all present and future rights to this
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# software under copyright law.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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# OTHER DEALINGS IN THE SOFTWARE.
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import wiredtiger, wttest
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from wtscenario import check_scenarios
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# test_metadata_cursor01.py
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# Metadata cursor operations
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# Basic smoke-test of metadata cursor: test backward and forward iteration
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# as well as search.
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class test_metadata_cursor01(wttest.WiredTigerTestCase):
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"""
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Test basic operations
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"""
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table_name1 = 'test_metadata_cursor01'
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scenarios = check_scenarios([
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('plain', {'metauri' : 'metadata:'}),
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('create', {'metauri' : 'metadata:create'}),
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])
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def genkey(self, i):
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if self.tablekind == 'row':
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return 'key' + str(i)
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else:
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return long(i+1)
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def genvalue(self, i):
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if self.tablekind == 'fix':
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return int(i & 0xff)
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else:
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return 'value' + str(i)
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def assertCursorHasNoKeyValue(self, cursor):
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keymsg = '/requires key be set/'
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valuemsg = '/requires value be set/'
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self.assertRaisesWithMessage(
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wiredtiger.WiredTigerError, cursor.get_key, keymsg)
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self.assertRaisesWithMessage(
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wiredtiger.WiredTigerError, cursor.get_value, valuemsg)
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def session_create(self, name, args):
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"""
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session.create, but report errors more completely
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"""
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try:
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self.session.create(name, args)
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except:
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print('**** ERROR in session.create("' + name + '","' + args + '") ***** ')
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raise
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# Create and populate the object, returning an open cursor.
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def create_table(self):
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tablearg = 'table:' + self.table_name1
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create_args = 'key_format=S,value_format=S'
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self.pr('creating session: ' + create_args)
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self.session_create(tablearg, create_args)
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self.pr('creating cursor')
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# Forward iteration.
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def test_forward_iter(self):
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self.create_table()
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cursor = self.session.open_cursor(self.metauri, None, None)
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self.assertCursorHasNoKeyValue(cursor)
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while True:
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nextret = cursor.next()
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if nextret != 0:
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break
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self.assertIsNotNone(cursor.get_key())
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self.assertIsNotNone(cursor.get_value())
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self.assertEqual(nextret, wiredtiger.WT_NOTFOUND)
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cursor.reset()
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self.assertCursorHasNoKeyValue(cursor)
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cursor.close()
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# Backward iteration.
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def test_backward_iter(self):
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self.create_table()
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cursor = self.session.open_cursor(self.metauri, None, None)
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self.assertCursorHasNoKeyValue(cursor)
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while True:
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prevret = cursor.prev()
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if prevret != 0:
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break
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self.assertIsNotNone(cursor.get_key())
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self.assertIsNotNone(cursor.get_value())
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self.assertEqual(prevret, wiredtiger.WT_NOTFOUND)
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self.assertCursorHasNoKeyValue(cursor)
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cursor.close()
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# Test search
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def test_search(self):
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self.create_table()
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cursor = self.session.open_cursor(self.metauri, None, None)
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self.assertCursorHasNoKeyValue(cursor)
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# Ensure the 'special' metadata metadata is found.
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value = cursor['metadata:']
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self.assertTrue(value.find('key_format') != -1)
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# Ensure the metadata for the table we created is found
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value = cursor['table:' + self.table_name1]
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self.assertTrue(value.find('key_format') != -1)
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if __name__ == '__main__':
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wttest.run()
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