120 lines
5.0 KiB
Python
120 lines
5.0 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 helper import simple_populate, key_populate, value_populate
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from wtscenario import check_scenarios
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# test_cursor_pin.py
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# Smoke-test fast-path searching for pinned pages before re-descending
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# the tree.
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class test_cursor_pin(wttest.WiredTigerTestCase):
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uri = 'file:cursor_pin'
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nentries = 10000
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config = 'allocation_size=512,leaf_page_max=512,value_format=S,key_format='
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scenarios = check_scenarios([
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('recno', dict(keyfmt='r')),
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('string', dict(keyfmt='S')),
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])
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# Create a multi-page file, confirm that a simple search to the local
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# page works, followed by a search to a different page.
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def test_smoke(self):
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simple_populate(self,
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self.uri, self.config + self.keyfmt, self.nentries)
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self.reopen_conn()
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c = self.session.open_cursor(self.uri, None)
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c.set_key(key_populate(c, 100))
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self.assertEqual(c.search(), 0)
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self.assertEqual(c.get_value(), value_populate(c, 100))
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c.set_key(key_populate(c, 101))
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self.assertEqual(c.search(), 0)
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self.assertEqual(c.get_value(), value_populate(c, 101))
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c.set_key(key_populate(c, 9999))
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self.assertEqual(c.search(), 0)
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self.assertEqual(c.get_value(), value_populate(c, 9999))
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# Forward check.
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def forward(self, c, max, notfound):
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for i in range(1, max + 1):
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c.set_key(key_populate(c, i))
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if i in notfound:
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self.assertEqual(c.search(), wiredtiger.WT_NOTFOUND)
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else:
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self.assertEqual(c.search(), 0)
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self.assertEqual(c.get_value(), value_populate(c, i))
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# Backward check.
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def backward(self, c, max, notfound):
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for i in range(max, 0, -1):
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c.set_key(key_populate(c, i))
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if i in notfound:
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self.assertEqual(c.search(), wiredtiger.WT_NOTFOUND)
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else:
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self.assertEqual(c.search(), 0)
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self.assertEqual(c.get_value(), value_populate(c, i))
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# Create a multi-page file, search backward, forward to check page
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# boundaries.
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def test_basic(self):
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simple_populate(self,
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self.uri, self.config + self.keyfmt, self.nentries)
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self.reopen_conn()
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c = self.session.open_cursor(self.uri, None)
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self.forward(c, self.nentries, [])
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self.backward(c, self.nentries, [])
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# Create a multi-page file with a big chunk of missing space in the
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# middle (to exercise column-store searches).
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def test_missing(self):
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simple_populate(self,
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self.uri, self.config + self.keyfmt, self.nentries)
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c = self.session.open_cursor(self.uri, None)
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for i in range(self.nentries + 3000, self.nentries + 5001):
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c[key_populate(c, i)] = value_populate(c, i)
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self.reopen_conn()
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c = self.session.open_cursor(self.uri, None)
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self.forward(c, self.nentries + 5000,
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list(range(self.nentries + 1, self.nentries + 3000)))
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self.backward(c, self.nentries + 5000,
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list(range(self.nentries + 1, self.nentries + 3000)))
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# Insert into the empty space so we test searching inserted items.
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for i in range(self.nentries + 1000, self.nentries + 2001):
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c[key_populate(c, i)] = value_populate(c, i)
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self.forward(c, self.nentries + 5000,
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list(range(self.nentries + 1, self.nentries + 1000) +\
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range(self.nentries + 2001, self.nentries + 3000)))
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self.backward(c, self.nentries + 5000,
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list(range(self.nentries + 1, self.nentries + 1000) +\
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range(self.nentries + 2001, self.nentries + 3000)))
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if __name__ == '__main__':
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wttest.run()
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