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+#!/usr/bin/env python
+#
+# Copyright (c) 2008-2012 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_stat01.py
+# Statistics operations
+#
+
+import unittest
+import wiredtiger
+import wttest
+import test_base03
+
+class test_stat01(wttest.WiredTigerTestCase):
+ """
+ Test statistics
+ """
+
+ tablename = 'test_stat01.wt'
+ nentries = 25
+
+ def statstr_to_int(self, str):
+ """
+ Convert a statistics value string, which may be in either form:
+ '12345' or '33M (33604836)'
+ """
+ parts = str.rpartition('(')
+ return int(parts[2].rstrip(')'))
+
+ def check_stats(self, statcursor, mincount, lookfor):
+ """
+ Do a quick check of the entries in the the stats cursor,
+ There should be at least 'mincount' entries,
+ and the 'lookfor' string should appear
+ """
+ stringclass = ''.__class__
+ intclass = (0).__class__
+ # make sure statistics basically look right
+ count = 0
+ found = False
+ for id, desc, valstr, val in statcursor:
+ self.assertEqual(type(desc), stringclass)
+ self.assertEqual(type(valstr), stringclass)
+ self.assertEqual(type(val), intclass)
+ self.assertEqual(val, self.statstr_to_int(valstr))
+ self.printVerbose(2, ' stat: \'' + desc + '\', \'' +
+ valstr + '\', ' + str(val))
+ count += 1
+ if desc == lookfor:
+ found = True
+ self.assertTrue(count > mincount)
+ self.assertTrue(found, 'in stats, did not see: ' + lookfor)
+
+ def test_statistics(self):
+ extra_params = ',allocation_size=512,internal_page_max=16384,leaf_page_max=131072'
+ self.session.create('table:' + self.tablename, 'key_format=S,value_format=S' + extra_params)
+ cursor = self.session.open_cursor('table:' + self.tablename, None, None)
+ value = ""
+ for i in range(0, self.nentries):
+ key = str(i)
+ value = value + key + value # size grows exponentially
+ cursor.set_key(key)
+ cursor.set_value(value)
+ cursor.insert()
+ cursor.close()
+
+ self.printVerbose(2, 'overall database stats:')
+ allstat_cursor = self.session.open_cursor('statistics:', None, None)
+ self.check_stats(allstat_cursor, 10, 'blocks written to a file')
+
+ # See that we can get a specific stat value by its key,
+ # and verify that its entry is self-consistent
+ allstat_cursor.set_key(wiredtiger.stat.block_write)
+ self.assertEqual(allstat_cursor.search(), 0)
+ values = allstat_cursor.get_values()
+ self.assertEqual(values[0], 'blocks written to a file')
+ val = self.statstr_to_int(values[1])
+ self.assertEqual(val, values[2])
+ allstat_cursor.close()
+
+ self.printVerbose(2, 'file specific stats:')
+ filestat_cursor = self.session.open_cursor('statistics:file:' + self.tablename + ".wt", None, None)
+ self.check_stats(filestat_cursor, 10, 'overflow pages')
+
+ # See that we can get a specific stat value by its key,
+ # and verify that its entry is self-consistent
+ filestat_cursor.set_key(wiredtiger.filestat.overflow)
+ self.assertEqual(filestat_cursor.search(), 0)
+ values = filestat_cursor.get_values()
+ self.assertEqual(values[0], 'overflow pages')
+ val = self.statstr_to_int(values[1])
+ self.assertEqual(val, values[2])
+ filestat_cursor.close()
+
+ no_cursor = self.session.open_cursor('statistics:file:DoesNotExist', None, None)
+ self.assertEqual(no_cursor, None)
+
+if __name__ == '__main__':
+ wttest.run()