diff options
Diffstat (limited to 'src/third_party/wiredtiger/test/suite/test_cursor04.py')
-rw-r--r-- | src/third_party/wiredtiger/test/suite/test_cursor04.py | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/src/third_party/wiredtiger/test/suite/test_cursor04.py b/src/third_party/wiredtiger/test/suite/test_cursor04.py new file mode 100644 index 00000000000..6576c623f8a --- /dev/null +++ b/src/third_party/wiredtiger/test/suite/test_cursor04.py @@ -0,0 +1,190 @@ +#!/usr/bin/env python +# +# Public Domain 2014-2016 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 check_scenarios + +# test_base04.py +# Cursor operations +class test_cursor04(wttest.WiredTigerTestCase): + """ + Test cursor search and search_near + """ + table_name1 = 'test_cursor04' + nentries = 20 + + scenarios = check_scenarios([ + ('row', dict(tablekind='row', uri='table')), + ('lsm-row', dict(tablekind='row', uri='lsm')), + ('col', dict(tablekind='col', uri='table')), + ('fix', dict(tablekind='fix', uri='table')) + ]) + + def config_string(self): + """ + Return any additional configuration. + This method may be overridden. + """ + return '' + + def session_create(self, name, args): + """ + session.create, but report errors more completely + """ + try: + self.session.create(name, args) + except: + print('**** ERROR in session.create("' + name + '","' + args + '") ***** ') + raise + + def create_session_and_cursor(self): + tablearg = self.uri + ":" + self.table_name1 + if self.tablekind == 'row': + keyformat = 'key_format=S' + else: + keyformat = 'key_format=r' # record format + if self.tablekind == 'fix': + valformat = 'value_format=8t' + else: + valformat = 'value_format=S' + create_args = keyformat + ',' + valformat + self.config_string() + self.pr('creating session: ' + create_args) + self.session_create(tablearg, create_args) + self.pr('creating cursor') + return self.session.open_cursor(tablearg, None, None) + + def genkey(self, i): + if self.tablekind == 'row': + return 'key' + str(i).zfill(5) # return key00001, key00002, etc. + else: + return long(i+1) + + def genvalue(self, i): + if self.tablekind == 'fix': + return int(i & 0xff) + else: + return 'value' + str(i) + + def expect_either(self, cursor, lt, gt): + origkey = cursor.get_key() + direction = cursor.search_near() + self.assertNotEqual(direction, wiredtiger.WT_NOTFOUND) + + # Deletions for 'fix' clear the value, they + # do not remove the key, so we expect '0' direction + # (that is key found) for fix. + if self.tablekind != 'fix': + self.assertTrue(direction == 1 or direction == -1) + else: + self.assertEqual(direction, 0) + + if direction == 1: + self.assertEqual(cursor.get_key(), self.genkey(gt)) + self.assertEqual(cursor.get_value(), self.genvalue(gt)) + elif direction == -1: + self.assertEqual(cursor.get_key(), self.genkey(lt)) + self.assertEqual(cursor.get_value(), self.genvalue(lt)) + else: + self.assertEqual(direction, 0) + self.assertEqual(cursor.get_key(), origkey) + self.assertEqual(cursor.get_value(), 0) + + def test_searches(self): + """ + Create entries, and read back in a cursor: key=string, value=string + """ + cursor = self.create_session_and_cursor() + + # Some tests below expect keys between 0-10 to be available + self.assertTrue(self.nentries > 10) + + # 0. Populate the key space + for i in range(0, self.nentries): + cursor[self.genkey(i)] = self.genvalue(i) + + # 1. Calling search for a value that exists + self.assertEqual(cursor[self.genkey(5)], self.genvalue(5)) + + # 2. Calling search for a value that does not exist + self.assertRaises(KeyError, lambda: cursor[self.genkey(self.nentries)]) + + # 2. Calling search_near for a value beyond the end + cursor.set_key(self.genkey(self.nentries)) + cmp = cursor.search_near() + self.assertEqual(cmp, -1) + self.assertEqual(cursor.get_key(), self.genkey(self.nentries-1)) + self.assertEqual(cursor.get_value(), self.genvalue(self.nentries-1)) + + # 2.a calling search_near for an existing value + cursor.set_key(self.genkey(7)) + cmp = cursor.search_near() + self.assertEqual(cmp, 0) + self.assertEqual(cursor.get_key(), self.genkey(7)) + self.assertEqual(cursor.get_value(), self.genvalue(7)) + + # 3. Delete some keys + # Deletions for 'fix' clear the value, they + # do not remove the key + cursor.set_key(self.genkey(0)) + cursor.remove() + cursor.set_key(self.genkey(5)) + cursor.remove() + cursor.set_key(self.genkey(9)) + cursor.remove() + cursor.set_key(self.genkey(10)) + cursor.remove() + + #cursor.reset() + #for key, value in cursor: + # print('key: ' + str(key)) + # print('value: ' + str(value)) + + cursor.set_key(self.genkey(0)) + cmp = cursor.search_near() + if self.tablekind != 'fix': + self.assertEqual(cmp, 1) + self.assertEqual(cursor.get_key(), self.genkey(1)) + self.assertEqual(cursor.get_value(), self.genvalue(1)) + else: + self.assertEqual(cmp, 0) + self.assertEqual(cursor.get_key(), self.genkey(0)) + self.assertEqual(cursor.get_value(), 0) + + cursor.set_key(self.genkey(5)) + self.expect_either(cursor, 4, 6) + + cursor.set_key(self.genkey(9)) + self.expect_either(cursor, 8, 11) + + cursor.set_key(self.genkey(10)) + self.expect_either(cursor, 8, 11) + + cursor.close() + +if __name__ == '__main__': + wttest.run() |