source4/lib/ldb/tests/python/api.py

   1 #!/usr/bin/env python
   2 # Simple tests for the ldb python bindings.
   3 # Copyright (C) 2007 Jelmer Vernooij <jelmer@samba.org>
   4
   5 import os
   6 import unittest
   7
   8 import ldb
   9
  10
  11 def filename():
  12     return os.tempnam()
  13
  14 class NoContextTests(unittest.TestCase):
  15
  16     def test_valid_attr_name(self):
  17         self.assertTrue(ldb.valid_attr_name("foo"))
  18         self.assertFalse(ldb.valid_attr_name("24foo"))
  19
  20     def test_timestring(self):
  21         self.assertEquals("19700101000000.0Z", ldb.timestring(0))
  22         self.assertEquals("20071119191012.0Z", ldb.timestring(1195499412))
  23
  24     def test_string_to_time(self):
  25         self.assertEquals(0, ldb.string_to_time("19700101000000.0Z"))
  26         self.assertEquals(1195499412, ldb.string_to_time("20071119191012.0Z"))
  27
  28
  29 class SimpleLdb(unittest.TestCase):
  30
  31     def test_connect(self):
  32         ldb.Ldb(filename())
  33
  34     def test_connect_none(self):
  35         ldb.Ldb()
  36
  37     def test_connect_later(self):
  38         x = ldb.Ldb()
  39         x.connect(filename())
  40
  41     def test_repr(self):
  42         x = ldb.Ldb()
  43         self.assertTrue(repr(x).startswith("<ldb connection"))
  44
  45     def test_set_create_perms(self):
  46         x = ldb.Ldb()
  47         x.set_create_perms(0600)
  48
  49     def test_set_modules_dir(self):
  50         x = ldb.Ldb()
  51         x.set_modules_dir("/tmp")
  52
  53     def test_modules_none(self):
  54         x = ldb.Ldb()
  55         self.assertEquals([], x.modules())
  56
  57     def test_modules_tdb(self):
  58         x = ldb.Ldb("bar.ldb")
  59         self.assertEquals("[<ldb module 'tdb'>]", repr(x.modules()))
  60
  61     def test_search(self):
  62         l = ldb.Ldb(filename())
  63         self.assertEquals(len(l.search()), 1)
  64
  65     def test_search_controls(self):
  66         l = ldb.Ldb(filename())
  67         self.assertEquals(len(l.search(controls=["paged_results:0:5"])), 1)
  68
  69     def test_search_attrs(self):
  70         l = ldb.Ldb(filename())
  71         self.assertEquals(len(l.search(ldb.Dn(l, ""), ldb.SCOPE_SUBTREE, "(dc=*)", ["dc"])), 0)
  72
  73     def test_search_string_dn(self):
  74         l = ldb.Ldb(filename())
  75         self.assertEquals(len(l.search("", ldb.SCOPE_SUBTREE, "(dc=*)", ["dc"])), 0)
  76
  77     def test_search_attr_string(self):
  78         l = ldb.Ldb("foo.tdb")
  79         self.assertRaises(TypeError, l.search, attrs="dc")
  80
  81     def test_opaque(self):
  82         l = ldb.Ldb(filename())
  83         l.set_opaque("my_opaque", l)
  84         self.assertTrue(l.get_opaque("my_opaque") is not None)
  85         self.assertEquals(None, l.get_opaque("unknown"))
  86
  87     def test_search_scope_base(self):
  88         l = ldb.Ldb(filename())
  89         self.assertEquals(len(l.search(ldb.Dn(l, "dc=foo1"),
  90                           ldb.SCOPE_ONELEVEL)), 0)
  91
  92     def test_delete(self):
  93         l = ldb.Ldb(filename())
  94         self.assertRaises(ldb.LdbError, lambda: l.delete(ldb.Dn(l, "dc=foo2")))
  95
  96     def test_delete_w_unhandled_ctrl(self):
  97         l = ldb.Ldb(filename())
  98         m = ldb.Message()
  99         m.dn = ldb.Dn(l, "dc=foo1")
 100         m["b"] = ["a"]
 101         l.add(m)
 102         self.assertRaises(ldb.LdbError, lambda: l.delete(m.dn, ["search_options:1:2"]))
 103         l.delete(m.dn)
 104
 105     def test_contains(self):
 106         l = ldb.Ldb(filename())
 107         self.assertFalse(ldb.Dn(l, "dc=foo3") in l)
 108         l = ldb.Ldb(filename())
 109         m = ldb.Message()
 110         m.dn = ldb.Dn(l, "dc=foo3")
 111         m["b"] = ["a"]
 112         l.add(m)
 113         try:
 114             self.assertTrue(ldb.Dn(l, "dc=foo3") in l)
 115         finally:
 116             l.delete(m.dn)
 117
 118     def test_get_config_basedn(self):
 119         l = ldb.Ldb(filename())
 120         self.assertEquals(None, l.get_config_basedn())
 121
 122     def test_get_root_basedn(self):
 123         l = ldb.Ldb(filename())
 124         self.assertEquals(None, l.get_root_basedn())
 125
 126     def test_get_schema_basedn(self):
 127         l = ldb.Ldb(filename())
 128         self.assertEquals(None, l.get_schema_basedn())
 129
 130     def test_get_default_basedn(self):
 131         l = ldb.Ldb(filename())
 132         self.assertEquals(None, l.get_default_basedn())
 133
 134     def test_add(self):
 135         l = ldb.Ldb(filename())
 136         m = ldb.Message()
 137         m.dn = ldb.Dn(l, "dc=foo4")
 138         m["bla"] = "bla"
 139         self.assertEquals(len(l.search()), 1)
 140         l.add(m)
 141         try:
 142             self.assertEquals(len(l.search()), 2)
 143         finally:
 144             l.delete(ldb.Dn(l, "dc=foo4"))
 145
 146     def test_add_w_unhandled_ctrl(self):
 147         l = ldb.Ldb(filename())
 148         m = ldb.Message()
 149         m.dn = ldb.Dn(l, "dc=foo4")
 150         m["bla"] = "bla"
 151         self.assertEquals(len(l.search()), 1)
 152         self.assertRaises(ldb.LdbError, lambda: l.add(m,["search_options:1:2"]))
 153
 154     def test_add_dict(self):
 155         l = ldb.Ldb(filename())
 156         m = {"dn": ldb.Dn(l, "dc=foo5"),
 157              "bla": "bla"}
 158         self.assertEquals(len(l.search()), 1)
 159         l.add(m)
 160         try:
 161             self.assertEquals(len(l.search()), 2)
 162         finally:
 163             l.delete(ldb.Dn(l, "dc=foo5"))
 164
 165     def test_add_dict_string_dn(self):
 166         l = ldb.Ldb(filename())
 167         m = {"dn": "dc=foo6", "bla": "bla"}
 168         self.assertEquals(len(l.search()), 1)
 169         l.add(m)
 170         try:
 171             self.assertEquals(len(l.search()), 2)
 172         finally:
 173             l.delete(ldb.Dn(l, "dc=foo6"))
 174
 175     def test_rename(self):
 176         l = ldb.Ldb(filename())
 177         m = ldb.Message()
 178         m.dn = ldb.Dn(l, "dc=foo7")
 179         m["bla"] = "bla"
 180         self.assertEquals(len(l.search()), 1)
 181         l.add(m)
 182         try:
 183             l.rename(ldb.Dn(l, "dc=foo7"), ldb.Dn(l, "dc=bar"))
 184             self.assertEquals(len(l.search()), 2)
 185         finally:
 186             l.delete(ldb.Dn(l, "dc=bar"))
 187
 188     def test_rename_string_dns(self):
 189         l = ldb.Ldb(filename())
 190         m = ldb.Message()
 191         m.dn = ldb.Dn(l, "dc=foo8")
 192         m["bla"] = "bla"
 193         self.assertEquals(len(l.search()), 1)
 194         l.add(m)
 195         self.assertEquals(len(l.search()), 2)
 196         try:
 197             l.rename("dc=foo8", "dc=bar")
 198             self.assertEquals(len(l.search()), 2)
 199         finally:
 200             l.delete(ldb.Dn(l, "dc=bar"))
 201
 202     def test_modify_delete(self):
 203         l = ldb.Ldb(filename())
 204         m = ldb.Message()
 205         m.dn = ldb.Dn(l, "dc=modifydelete")
 206         m["bla"] = ["1234"]
 207         l.add(m)
 208         rm = l.search(m.dn)[0]
 209         self.assertEquals(["1234"], list(rm["bla"]))
 210         try:
 211             m = ldb.Message()
 212             m.dn = ldb.Dn(l, "dc=modifydelete")
 213             m["bla"] = ldb.MessageElement([], ldb.FLAG_MOD_DELETE, "bla")
 214             self.assertEquals(ldb.FLAG_MOD_DELETE, m["bla"].flags())
 215             l.modify(m)
 216             rm = l.search(m.dn)[0]
 217             self.assertEquals(1, len(rm))
 218             rm = l.search(m.dn, attrs=["bla"])[0]
 219             self.assertEquals(0, len(rm))
 220         finally:
 221             l.delete(ldb.Dn(l, "dc=modifydelete"))
 222
 223     def test_modify_add(self):
 224         l = ldb.Ldb(filename())
 225         m = ldb.Message()
 226         m.dn = ldb.Dn(l, "dc=add")
 227         m["bla"] = ["1234"]
 228         l.add(m)
 229         try:
 230             m = ldb.Message()
 231             m.dn = ldb.Dn(l, "dc=add")
 232             m["bla"] = ldb.MessageElement(["456"], ldb.FLAG_MOD_ADD, "bla")
 233             self.assertEquals(ldb.FLAG_MOD_ADD, m["bla"].flags())
 234             l.modify(m)
 235             rm = l.search(m.dn)[0]
 236             self.assertEquals(2, len(rm))
 237             self.assertEquals(["1234", "456"], list(rm["bla"]))
 238         finally:
 239             l.delete(ldb.Dn(l, "dc=add"))
 240
 241     def test_modify_replace(self):
 242         l = ldb.Ldb(filename())
 243         m = ldb.Message()
 244         m.dn = ldb.Dn(l, "dc=modify2")
 245         m["bla"] = ["1234", "456"]
 246         l.add(m)
 247         try:
 248             m = ldb.Message()
 249             m.dn = ldb.Dn(l, "dc=modify2")
 250             m["bla"] = ldb.MessageElement(["789"], ldb.FLAG_MOD_REPLACE, "bla")
 251             self.assertEquals(ldb.FLAG_MOD_REPLACE, m["bla"].flags())
 252             l.modify(m)
 253             rm = l.search(m.dn)[0]
 254             self.assertEquals(2, len(rm))
 255             self.assertEquals(["789"], list(rm["bla"]))
 256             rm = l.search(m.dn, attrs=["bla"])[0]
 257             self.assertEquals(1, len(rm))
 258         finally:
 259             l.delete(ldb.Dn(l, "dc=modify2"))
 260
 261     def test_modify_flags_change(self):
 262         l = ldb.Ldb(filename())
 263         m = ldb.Message()
 264         m.dn = ldb.Dn(l, "dc=add")
 265         m["bla"] = ["1234"]
 266         l.add(m)
 267         try:
 268             m = ldb.Message()
 269             m.dn = ldb.Dn(l, "dc=add")
 270             m["bla"] = ldb.MessageElement(["456"], ldb.FLAG_MOD_ADD, "bla")
 271             self.assertEquals(ldb.FLAG_MOD_ADD, m["bla"].flags())
 272             l.modify(m)
 273             rm = l.search(m.dn)[0]
 274             self.assertEquals(2, len(rm))
 275             self.assertEquals(["1234", "456"], list(rm["bla"]))
 276
 277             #Now create another modify, but switch the flags before we do it
 278             m["bla"] = ldb.MessageElement(["456"], ldb.FLAG_MOD_ADD, "bla")
 279             m["bla"].set_flags(ldb.FLAG_MOD_DELETE)
 280             l.modify(m)
 281             rm = l.search(m.dn, attrs=["bla"])[0]
 282             self.assertEquals(1, len(rm))
 283             self.assertEquals(["1234"], list(rm["bla"]))
 284
 285         finally:
 286             l.delete(ldb.Dn(l, "dc=add"))
 287
 288     def test_transaction_commit(self):
 289         l = ldb.Ldb(filename())
 290         l.transaction_start()
 291         m = ldb.Message(ldb.Dn(l, "dc=foo9"))
 292         m["foo"] = ["bar"]
 293         l.add(m)
 294         l.transaction_commit()
 295         l.delete(m.dn)
 296
 297     def test_transaction_cancel(self):
 298         l = ldb.Ldb(filename())
 299         l.transaction_start()
 300         m = ldb.Message(ldb.Dn(l, "dc=foo10"))
 301         m["foo"] = ["bar"]
 302         l.add(m)
 303         l.transaction_cancel()
 304         self.assertEquals(0, len(l.search(ldb.Dn(l, "dc=foo10"))))
 305
 306     def test_set_debug(self):
 307         def my_report_fn(level, text):
 308             pass
 309         l = ldb.Ldb(filename())
 310         l.set_debug(my_report_fn)
 311
 312     def test_zero_byte_string(self):
 313         """Testing we do not get trapped in the \0 byte in a property string."""
 314         l = ldb.Ldb(filename())
 315         l.add({
 316             "dn" : "dc=somedn",
 317             "objectclass" : "user",
 318             "cN" : "LDAPtestUSER",
 319             "givenname" : "ldap",
 320             "displayname" : "foo\0bar",
 321         })
 322         res = l.search(expression="(dn=dc=somedn)")
 323         self.assertEquals("foo\0bar", res[0]["displayname"][0])
 324
 325     def test_no_crash_broken_expr(self):
 326         l = ldb.Ldb(filename())
 327         self.assertRaises(ldb.LdbError,lambda: l.search("", ldb.SCOPE_SUBTREE, "&(dc=*)(dn=*)", ["dc"]))
 328
 329
 330 class DnTests(unittest.TestCase):
 331
 332     def setUp(self):
 333         self.ldb = ldb.Ldb(filename())
 334
 335     def test_set_dn_invalid(self):
 336         x = ldb.Message()
 337         def assign():
 338             x.dn = "astring"
 339         self.assertRaises(TypeError, assign)
 340
 341     def test_eq(self):
 342         x = ldb.Dn(self.ldb, "dc=foo11,bar=bloe")
 343         y = ldb.Dn(self.ldb, "dc=foo11,bar=bloe")
 344         self.assertEquals(x, y)
 345
 346     def test_str(self):
 347         x = ldb.Dn(self.ldb, "dc=foo12,bar=bloe")
 348         self.assertEquals(x.__str__(), "dc=foo12,bar=bloe")
 349
 350     def test_repr(self):
 351         x = ldb.Dn(self.ldb, "dc=foo13,bla=blie")
 352         self.assertEquals(x.__repr__(), "Dn('dc=foo13,bla=blie')")
 353
 354     def test_get_casefold(self):
 355         x = ldb.Dn(self.ldb, "dc=foo14,bar=bloe")
 356         self.assertEquals(x.get_casefold(), "DC=FOO14,BAR=bloe")
 357
 358     def test_validate(self):
 359         x = ldb.Dn(self.ldb, "dc=foo15,bar=bloe")
 360         self.assertTrue(x.validate())
 361
 362     def test_parent(self):
 363         x = ldb.Dn(self.ldb, "dc=foo16,bar=bloe")
 364         self.assertEquals("bar=bloe", x.parent().__str__())
 365
 366     def test_parent_nonexistant(self):
 367         x = ldb.Dn(self.ldb, "@BLA")
 368         self.assertEquals(None, x.parent())
 369
 370     def test_compare(self):
 371         x = ldb.Dn(self.ldb, "dc=foo17,bar=bloe")
 372         y = ldb.Dn(self.ldb, "dc=foo17,bar=bloe")
 373         self.assertEquals(x, y)
 374         z = ldb.Dn(self.ldb, "dc=foo17,bar=blie")
 375         self.assertNotEquals(z, y)
 376
 377     def test_is_valid(self):
 378         x = ldb.Dn(self.ldb, "dc=foo18,dc=bloe")
 379         self.assertTrue(x.is_valid())
 380         x = ldb.Dn(self.ldb, "")
 381         # is_valid()'s return values appears to be a side effect of
 382         # some other ldb functions. yuck.
 383         # self.assertFalse(x.is_valid())
 384
 385     def test_is_special(self):
 386         x = ldb.Dn(self.ldb, "dc=foo19,bar=bloe")
 387         self.assertFalse(x.is_special())
 388         x = ldb.Dn(self.ldb, "@FOOBAR")
 389         self.assertTrue(x.is_special())
 390
 391     def test_check_special(self):
 392         x = ldb.Dn(self.ldb, "dc=foo20,bar=bloe")
 393         self.assertFalse(x.check_special("FOOBAR"))
 394         x = ldb.Dn(self.ldb, "@FOOBAR")
 395         self.assertTrue(x.check_special("@FOOBAR"))
 396
 397     def test_len(self):
 398         x = ldb.Dn(self.ldb, "dc=foo21,bar=bloe")
 399         self.assertEquals(2, len(x))
 400         x = ldb.Dn(self.ldb, "dc=foo21")
 401         self.assertEquals(1, len(x))
 402
 403     def test_add_child(self):
 404         x = ldb.Dn(self.ldb, "dc=foo22,bar=bloe")
 405         self.assertTrue(x.add_child(ldb.Dn(self.ldb, "bla=bloe")))
 406         self.assertEquals("bla=bloe,dc=foo22,bar=bloe", x.__str__())
 407
 408     def test_add_base(self):
 409         x = ldb.Dn(self.ldb, "dc=foo23,bar=bloe")
 410         base = ldb.Dn(self.ldb, "bla=bloe")
 411         self.assertTrue(x.add_base(base))
 412         self.assertEquals("dc=foo23,bar=bloe,bla=bloe", x.__str__())
 413
 414     def test_add(self):
 415         x = ldb.Dn(self.ldb, "dc=foo24")
 416         y = ldb.Dn(self.ldb, "bar=bla")
 417         self.assertEquals("dc=foo24,bar=bla", str(y + x))
 418
 419     def test_parse_ldif(self):
 420         msgs = self.ldb.parse_ldif("dn: foo=bar\n")
 421         msg = msgs.next()
 422         self.assertEquals("foo=bar", str(msg[1].dn))
 423         self.assertTrue(isinstance(msg[1], ldb.Message))
 424         ldif = self.ldb.write_ldif(msg[1], ldb.CHANGETYPE_NONE)
 425         self.assertEquals("dn: foo=bar\n\n", ldif)
 426
 427     def test_parse_ldif_more(self):
 428         msgs = self.ldb.parse_ldif("dn: foo=bar\n\n\ndn: bar=bar")
 429         msg = msgs.next()
 430         self.assertEquals("foo=bar", str(msg[1].dn))
 431         msg = msgs.next()
 432         self.assertEquals("bar=bar", str(msg[1].dn))
 433
 434     def test_canonical_string(self):
 435         x = ldb.Dn(self.ldb, "dc=foo25,bar=bloe")
 436         self.assertEquals("/bloe/foo25", x.canonical_str())
 437
 438     def test_canonical_ex_string(self):
 439         x = ldb.Dn(self.ldb, "dc=foo26,bar=bloe")
 440         self.assertEquals("/bloe\nfoo26", x.canonical_ex_str())
 441
 442
 443 class LdbMsgTests(unittest.TestCase):
 444
 445     def setUp(self):
 446         self.msg = ldb.Message()
 447
 448     def test_init_dn(self):
 449         self.msg = ldb.Message(ldb.Dn(ldb.Ldb(), "dc=foo27"))
 450         self.assertEquals("dc=foo27", str(self.msg.dn))
 451
 452     def test_iter_items(self):
 453         self.assertEquals(0, len(self.msg.items()))
 454         self.msg.dn = ldb.Dn(ldb.Ldb("foo.tdb"), "dc=foo28")
 455         self.assertEquals(1, len(self.msg.items()))
 456
 457     def test_repr(self):
 458         self.msg.dn = ldb.Dn(ldb.Ldb("foo.tdb"), "dc=foo29")
 459         self.msg["dc"] = "foo"
 460         self.assertEquals("Message({'dn': Dn('dc=foo29'), 'dc': MessageElement(['foo'])})", repr(self.msg))
 461
 462     def test_len(self):
 463         self.assertEquals(0, len(self.msg))
 464
 465     def test_notpresent(self):
 466         self.assertRaises(KeyError, lambda: self.msg["foo"])
 467
 468     def test_del(self):
 469         del self.msg["foo"]
 470
 471     def test_add_value(self):
 472         self.assertEquals(0, len(self.msg))
 473         self.msg["foo"] = ["foo"]
 474         self.assertEquals(1, len(self.msg))
 475
 476     def test_add_value_multiple(self):
 477         self.assertEquals(0, len(self.msg))
 478         self.msg["foo"] = ["foo", "bla"]
 479         self.assertEquals(1, len(self.msg))
 480         self.assertEquals(["foo", "bla"], list(self.msg["foo"]))
 481
 482     def test_set_value(self):
 483         self.msg["foo"] = ["fool"]
 484         self.assertEquals(["fool"], list(self.msg["foo"]))
 485         self.msg["foo"] = ["bar"]
 486         self.assertEquals(["bar"], list(self.msg["foo"]))
 487
 488     def test_keys(self):
 489         self.msg.dn = ldb.Dn(ldb.Ldb("foo.tdb"), "@BASEINFO")
 490         self.msg["foo"] = ["bla"]
 491         self.msg["bar"] = ["bla"]
 492         self.assertEquals(["dn", "foo", "bar"], self.msg.keys())
 493
 494     def test_dn(self):
 495         self.msg.dn = ldb.Dn(ldb.Ldb(filename()), "@BASEINFO")
 496         self.assertEquals("@BASEINFO", self.msg.dn.__str__())
 497
 498     def test_get_dn(self):
 499         self.msg.dn = ldb.Dn(ldb.Ldb("foo.tdb"), "@BASEINFO")
 500         self.assertEquals("@BASEINFO", self.msg.get("dn").__str__())
 501
 502     def test_get_invalid(self):
 503         self.msg.dn = ldb.Dn(ldb.Ldb("foo.tdb"), "@BASEINFO")
 504         self.assertRaises(TypeError, self.msg.get, 42)
 505
 506     def test_get_other(self):
 507         self.msg["foo"] = ["bar"]
 508         self.assertEquals("bar", self.msg.get("foo")[0])
 509
 510     def test_get_unknown(self):
 511         self.assertEquals(None, self.msg.get("lalalala"))
 512
 513     def test_msg_diff(self):
 514         l = ldb.Ldb()
 515         msgs = l.parse_ldif("dn: foo=bar\nfoo: bar\nbaz: do\n\ndn: foo=bar\nfoo: bar\nbaz: dont\n")
 516         msg1 = msgs.next()[1]
 517         msg2 = msgs.next()[1]
 518         msgdiff = l.msg_diff(msg1, msg2)
 519         self.assertEquals("foo=bar", msgdiff.get("dn").__str__())
 520         self.assertRaises(KeyError, lambda: msgdiff["foo"])
 521         self.assertEquals(1, len(msgdiff))
 522
 523     def test_equal_empty(self):
 524         msg1 = ldb.Message()
 525         msg2 = ldb.Message()
 526         self.assertEquals(msg1, msg2)
 527
 528     def test_equal_simplel(self):
 529         db = ldb.Ldb("foo.tdb")
 530         msg1 = ldb.Message()
 531         msg1.dn = ldb.Dn(db, "foo=bar")
 532         msg2 = ldb.Message()
 533         msg2.dn = ldb.Dn(db, "foo=bar")
 534         self.assertEquals(msg1, msg2)
 535         msg1['foo'] = 'bar'
 536         msg2['foo'] = 'bar'
 537         self.assertEquals(msg1, msg2)
 538         msg2['foo'] = 'blie'
 539         self.assertNotEquals(msg1, msg2)
 540         msg2['foo'] = 'blie'
 541
 542
 543
 544 class MessageElementTests(unittest.TestCase):
 545
 546     def test_cmp_element(self):
 547         x = ldb.MessageElement(["foo"])
 548         y = ldb.MessageElement(["foo"])
 549         z = ldb.MessageElement(["bzr"])
 550         self.assertEquals(x, y)
 551         self.assertNotEquals(x, z)
 552
 553     def test_create_iterable(self):
 554         x = ldb.MessageElement(["foo"])
 555         self.assertEquals(["foo"], list(x))
 556
 557     def test_repr(self):
 558         x = ldb.MessageElement(["foo"])
 559         self.assertEquals("MessageElement(['foo'])", repr(x))
 560         x = ldb.MessageElement(["foo", "bla"])
 561         self.assertEquals(2, len(x))
 562         self.assertEquals("MessageElement(['foo','bla'])", repr(x))
 563
 564     def test_get_item(self):
 565         x = ldb.MessageElement(["foo", "bar"])
 566         self.assertEquals("foo", x[0])
 567         self.assertEquals("bar", x[1])
 568         self.assertEquals("bar", x[-1])
 569         self.assertRaises(IndexError, lambda: x[45])
 570
 571     def test_len(self):
 572         x = ldb.MessageElement(["foo", "bar"])
 573         self.assertEquals(2, len(x))
 574
 575     def test_eq(self):
 576         x = ldb.MessageElement(["foo", "bar"])
 577         y = ldb.MessageElement(["foo", "bar"])
 578         self.assertEquals(y, x)
 579         x = ldb.MessageElement(["foo"])
 580         self.assertNotEquals(y, x)
 581         y = ldb.MessageElement(["foo"])
 582         self.assertEquals(y, x)
 583
 584
 585 class ModuleTests(unittest.TestCase):
 586
 587     def test_register_module(self):
 588         class ExampleModule:
 589             name = "example"
 590         ldb.register_module(ExampleModule)
 591
 592     def test_use_module(self):
 593         ops = []
 594         class ExampleModule:
 595             name = "bla"
 596
 597             def __init__(self, ldb, next):
 598                 ops.append("init")
 599                 self.next = next
 600
 601             def search(self, *args, **kwargs):
 602                 return self.next.search(*args, **kwargs)
 603
 604         ldb.register_module(ExampleModule)
 605         if os.path.exists("usemodule.ldb"):
 606             os.unlink("usemodule.ldb")
 607         l = ldb.Ldb("usemodule.ldb")
 608         l.add({"dn": "@MODULES", "@LIST": "bla"})
 609         self.assertEquals([], ops)
 610         l = ldb.Ldb("usemodule.ldb")
 611         self.assertEquals(["init"], ops)
 612
 613
 614 class VersionTests(unittest.TestCase):
 615
 616     def test_version(self):
 617         self.assertTrue(isinstance(ldb.__version__, str))
 618
 619
 620 if __name__ == '__main__':
 621     import unittest
 622     unittest.TestProgram()