90 lines
3.2 KiB
Python
90 lines
3.2 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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#
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# test_split.py
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# check that splits work as expected
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#
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import wiredtiger, wttest
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from wiredtiger import stat
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from helper import confirm_empty,\
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key_populate, value_populate, simple_populate,\
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complex_populate, complex_value_populate
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from wtscenario import multiply_scenarios, number_scenarios
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# Test splits
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class test_split(wttest.WiredTigerTestCase):
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name = 'test_split'
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conn_config = 'statistics=[all]'
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uri = 'file:' + name
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def test_split_simple(self):
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self.session.create(self.uri,
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'key_format=S,value_format=S,' +
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'allocation_size=4KB,leaf_page_max=4KB,split_pct=75')
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cursor = self.session.open_cursor(self.uri, None)
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# Create a 4KB page (more than 3KB): 40 records w / 10 byte keys
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# and 81 byte values.
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for i in range(40):
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cursor['%09d' % i] = 8 * ('%010d' % i)
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# Stabilize
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self.reopen_conn()
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stat_cursor = self.session.open_cursor('statistics:' + self.uri, None)
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self.assertEqual(1, stat_cursor[stat.dsrc.btree_row_leaf][2])
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stat_cursor.close()
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# Now append a few records so we're definitely (a little) over 4KB
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cursor = self.session.open_cursor(self.uri, None)
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for i in range(50,55):
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cursor['%09d' % i] = 8 * ('%010d' % i)
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# Stabilize
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self.reopen_conn()
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stat_cursor = self.session.open_cursor('statistics:' + self.uri, None)
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self.assertEqual(2, stat_cursor[stat.dsrc.btree_row_leaf][2])
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stat_cursor.close()
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# Now insert some more records in between
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cursor = self.session.open_cursor(self.uri, None)
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for i in range(40,45):
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cursor['%09d' % i] = 8 * ('%010d' % i)
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# Stabilize
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self.reopen_conn()
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stat_cursor = self.session.open_cursor('statistics:' + self.uri, None)
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self.assertEqual(2, stat_cursor[stat.dsrc.btree_row_leaf][2])
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stat_cursor.close()
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if __name__ == '__main__':
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wttest.run()
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