ctdb/lib/tdb/python/tests/simple.py

   1 #!/usr/bin/env python
   2 # Some simple tests for the Python bindings for TDB
   3 # Note that this tests the interface of the Python bindings
   4 # It does not test tdb itself.
   5 #
   6 # Copyright (C) 2007-2008 Jelmer Vernooij <jelmer@samba.org>
   7 # Published under the GNU LGPLv3 or later
   8
   9 import tdb
  10 from unittest import TestCase
  11 import os, tempfile
  12
  13
  14 class OpenTdbTests(TestCase):
  15
  16     def test_nonexistant_read(self):
  17         self.assertRaises(IOError, tdb.Tdb, "/some/nonexistant/file", 0,
  18                 tdb.DEFAULT, os.O_RDWR)
  19
  20 class CloseTdbTests(TestCase):
  21
  22     def test_double_close(self):
  23         # No hash size in tdb2.
  24         if tdb.__version__.startswith("2"):
  25             self.tdb = tdb.Tdb(tempfile.mkstemp()[1], tdb.DEFAULT,
  26                                os.O_CREAT|os.O_RDWR)
  27         else:
  28             self.tdb = tdb.Tdb(tempfile.mkstemp()[1], 0, tdb.DEFAULT,
  29                                os.O_CREAT|os.O_RDWR)
  30         self.assertNotEqual(None, self.tdb)
  31
  32         # ensure that double close does not crash python
  33         self.tdb.close()
  34         self.tdb.close()
  35
  36
  37 class InternalTdbTests(TestCase):
  38
  39     def test_repr(self):
  40         self.tdb = tdb.Tdb()
  41
  42         # repr used to crash on internal db
  43         self.assertEquals(repr(self.tdb), "Tdb(<internal>)")
  44
  45
  46 class SimpleTdbTests(TestCase):
  47
  48     def setUp(self):
  49         super(SimpleTdbTests, self).setUp()
  50         if tdb.__version__.startswith("2"):
  51             self.tdb = tdb.Tdb(tempfile.mkstemp()[1], tdb.DEFAULT,
  52                                os.O_CREAT|os.O_RDWR)
  53         else:
  54             self.tdb = tdb.Tdb(tempfile.mkstemp()[1], 0, tdb.DEFAULT,
  55                                os.O_CREAT|os.O_RDWR)
  56         self.assertNotEqual(None, self.tdb)
  57
  58     def tearDown(self):
  59         del self.tdb
  60
  61     def test_repr(self):
  62         self.assertTrue(repr(self.tdb).startswith("Tdb('"))
  63
  64     def test_lockall(self):
  65         self.tdb.lock_all()
  66
  67     def test_max_dead(self):
  68         if not tdb.__version__.startswith("2"):
  69             self.tdb.max_dead = 20
  70
  71     def test_unlockall(self):
  72         self.tdb.lock_all()
  73         self.tdb.unlock_all()
  74
  75     def test_lockall_read(self):
  76         self.tdb.read_lock_all()
  77         self.tdb.read_unlock_all()
  78
  79     def test_reopen(self):
  80         if not tdb.__version__.startswith("2"):
  81             self.tdb.reopen()
  82
  83     def test_store(self):
  84         self.tdb.store("bar", "bla")
  85         self.assertEquals("bla", self.tdb.get("bar"))
  86
  87     def test_getitem(self):
  88         self.tdb["bar"] = "foo"
  89         if not tdb.__version__.startswith("2"):
  90             self.tdb.reopen()
  91         self.assertEquals("foo", self.tdb["bar"])
  92
  93     def test_delete(self):
  94         self.tdb["bar"] = "foo"
  95         del self.tdb["bar"]
  96         self.assertRaises(KeyError, lambda: self.tdb["bar"])
  97
  98     def test_contains(self):
  99         self.tdb["bla"] = "bloe"
 100         self.assertTrue("bla" in self.tdb)
 101
 102     def test_keyerror(self):
 103         self.assertRaises(KeyError, lambda: self.tdb["bla"])
 104
 105     def test_hash_size(self):
 106         if not tdb.__version__.startswith("2"):
 107             self.tdb.hash_size
 108
 109     def test_map_size(self):
 110         if not tdb.__version__.startswith("2"):
 111             self.tdb.map_size
 112
 113     def test_freelist_size(self):
 114         if not tdb.__version__.startswith("2"):
 115             self.tdb.freelist_size
 116
 117     def test_name(self):
 118         self.tdb.filename
 119
 120     def test_iterator(self):
 121         self.tdb["bla"] = "1"
 122         self.tdb["brainslug"] = "2"
 123         l = list(self.tdb)
 124         l.sort()
 125         self.assertEquals(["bla", "brainslug"], l)
 126
 127     def test_transaction_cancel(self):
 128         self.tdb["bloe"] = "2"
 129         self.tdb.transaction_start()
 130         self.tdb["bloe"] = "1"
 131         self.tdb.transaction_cancel()
 132         self.assertEquals("2", self.tdb["bloe"])
 133
 134     def test_transaction_commit(self):
 135         self.tdb["bloe"] = "2"
 136         self.tdb.transaction_start()
 137         self.tdb["bloe"] = "1"
 138         self.tdb.transaction_commit()
 139         self.assertEquals("1", self.tdb["bloe"])
 140
 141     def test_transaction_prepare_commit(self):
 142         self.tdb["bloe"] = "2"
 143         self.tdb.transaction_start()
 144         self.tdb["bloe"] = "1"
 145         self.tdb.transaction_prepare_commit()
 146         self.tdb.transaction_commit()
 147         self.assertEquals("1", self.tdb["bloe"])
 148
 149     def test_iterkeys(self):
 150         self.tdb["bloe"] = "2"
 151         self.tdb["bla"] = "25"
 152         i = self.tdb.iterkeys()
 153         self.assertEquals(set(["bloe", "bla"]), set([i.next(), i.next()]))
 154
 155     def test_clear(self):
 156         self.tdb["bloe"] = "2"
 157         self.tdb["bla"] = "25"
 158         self.assertEquals(2, len(list(self.tdb)))
 159         self.tdb.clear()
 160         self.assertEquals(0, len(list(self.tdb)))
 161
 162     def test_repack(self):
 163         if not tdb.__version__.startswith("2"):
 164             self.tdb["foo"] = "abc"
 165             self.tdb["bar"] = "def"
 166             del self.tdb["foo"]
 167             self.tdb.repack()
 168
 169     def test_seqnum(self):
 170         if not tdb.__version__.startswith("2"):
 171             self.tdb.enable_seqnum()
 172             seq1 = self.tdb.seqnum
 173             self.tdb.increment_seqnum_nonblock()
 174             seq2 = self.tdb.seqnum
 175             self.assertEquals(seq2-seq1, 1)
 176
 177     def test_len(self):
 178         self.assertEquals(0, len(list(self.tdb)))
 179         self.tdb["entry"] = "value"
 180         self.assertEquals(1, len(list(self.tdb)))
 181
 182     def test_add_flags(self):
 183         if tdb.__version__.startswith("2"):
 184             self.tdb.add_flag(tdb.NOMMAP)
 185             self.tdb.remove_flag(tdb.NOMMAP)
 186         else:
 187             self.tdb.add_flags(tdb.NOMMAP)
 188             self.tdb.remove_flags(tdb.NOMMAP)
 189
 190
 191 class VersionTests(TestCase):
 192
 193     def test_present(self):
 194         self.assertTrue(isinstance(tdb.__version__, str))
 195
 196
 197 if __name__ == '__main__':
 198     import unittest
 199     unittest.TestProgram()