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#!/usr/bin/env python3
#
# Tests for comparison expressions on indexed keys
#
# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2019
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""Tests for expressions containing comparisons on indexed attributes.
Copied from ldb's index.py"""
import os
from unittest import TestCase
import sys
from samba import _ldb
import shutil
from ldb import SCOPE_SUBTREE
from samba.tests.subunitrun import TestProgram
PY3 = sys.version_info > (3, 0)
TDB_PREFIX = "tdb://"
MDB_PREFIX = "mdb://"
def tempdir():
import tempfile
try:
dir_prefix = os.path.join(os.environ["SELFTEST_PREFIX"], "tmp")
except KeyError:
dir_prefix = None
return tempfile.mkdtemp(dir=dir_prefix)
class LdbBaseTest(TestCase):
def setUp(self):
super(LdbBaseTest, self).setUp()
try:
if self.prefix is None:
self.prefix = TDB_PREFIX
except AttributeError:
self.prefix = TDB_PREFIX
def tearDown(self):
super(LdbBaseTest, self).tearDown()
def url(self):
return self.prefix + self.filename
def flags(self):
if self.prefix == MDB_PREFIX:
return ldb.FLG_NOSYNC
else:
return 0
def options(self):
if self.prefix == MDB_PREFIX:
return ['disable_full_db_scan_for_self_test:1']
else:
return None
class LdbTDBIndexedComparisonExpressions(LdbBaseTest):
def tearDown(self):
shutil.rmtree(self.testdir)
super(LdbTDBIndexedComparisonExpressions, self).tearDown()
# Ensure the LDB is closed now, so we close the FD
del(self.l)
def setUp(self):
super(LdbTDBIndexedComparisonExpressions, self).setUp()
self.testdir = tempdir()
self.filename = os.path.join(self.testdir, "indexedcomptest.ldb")
# Note that the maximum key length is set to 54
# This accounts for the 4 bytes added by the dn formatting
# a leading dn=, and a trailing zero terminator
#
self.l = _ldb.Ldb(self.url(), options=self.options())
self.l.add({"dn": "@ATTRIBUTES"})
self.l.add({"dn": "@INDEXLIST",
"@IDXATTR": [b"int32attr"],
"@IDXONE": [b"1"],
"@IDXGUID": [b"objectUUID"],
"@IDX_DN_GUID": [b"GUID"]})
def test_comparison_expression(self):
self.l.samba_schema_attribute_add("int32attr", 0,
_ldb.SYNTAX_SAMBA_INT32)
int32_max = 2**31-1
int32_min = -2**31
test_nums = list(range(-5, 5))
test_nums += list(range(int32_max-5, int32_max+1))
test_nums += list(range(int32_min, int32_min+5))
test_nums = sorted(test_nums)
for i in test_nums:
ouuid = 0x0123456789abcdef + i
ouuid_s = bytes(('0' + hex(ouuid)[2:]).encode())
self.l.add({"dn": "OU=COMPTESTOU{},DC=SAMBA,DC=ORG".format(i),
"objectUUID": ouuid_s,
"int32attr": str(i)})
def assert_int32_expr(expr, py_expr=None):
res = self.l.search(base="DC=SAMBA,DC=ORG",
scope=SCOPE_SUBTREE,
expression="(int32attr%s)" % (expr))
if not py_expr:
py_expr = expr
expect = [n for n in test_nums if eval(str(n) + py_expr)]
vals = sorted([int(r.get("int32attr")[0]) for r in res])
self.assertEqual(len(res), len(expect))
self.assertEqual(set(vals), set(expect))
self.assertEqual(expect, vals)
assert_int32_expr(">=-2")
assert_int32_expr("<=2")
assert_int32_expr(">=" + str(int32_min))
assert_int32_expr("<=" + str(int32_min))
assert_int32_expr("<=" + str(int32_min+1))
assert_int32_expr("<=" + str(int32_max))
assert_int32_expr(">=" + str(int32_max))
assert_int32_expr(">=" + str(int32_max-1))
assert_int32_expr("=10", "==10")
def test_comparison_expression_duplicates(self):
self.l.samba_schema_attribute_add("int32attr", 0,
_ldb.SYNTAX_SAMBA_INT32)
int32_max = 2**31-1
int32_min = -2**31
test_nums = list(range(-5, 5)) * 3
test_nums += list(range(-20, 20, 5)) * 2
test_nums += list(range(-50, 50, 15))
test_nums = sorted(test_nums)
for i, n in enumerate(test_nums):
ouuid = 0x0123456789abcdef + i
ouuid_s = bytes(('0' + hex(ouuid)[2:]).encode())
self.l.add({"dn": "OU=COMPTESTOU{},DC=SAMBA,DC=ORG".format(i),
"objectUUID": ouuid_s,
"int32attr": str(n)})
def assert_int32_expr(expr, py_expr=None):
res = self.l.search(base="DC=SAMBA,DC=ORG",
scope=SCOPE_SUBTREE,
expression="(int32attr%s)" % (expr))
if not py_expr:
py_expr = expr
expect = [n for n in test_nums if eval(str(n) + py_expr)]
vals = sorted([int(r.get("int32attr")[0]) for r in res])
self.assertEqual(len(res), len(expect))
self.assertEqual(set(vals), set(expect))
self.assertEqual(expect, vals)
assert_int32_expr(">=-2")
assert_int32_expr("<=2")
assert_int32_expr(">=" + str(int32_min))
assert_int32_expr("<=" + str(int32_min))
assert_int32_expr("<=" + str(int32_min+1))
assert_int32_expr("<=" + str(int32_max))
assert_int32_expr(">=" + str(int32_max))
assert_int32_expr(">=" + str(int32_max-1))
assert_int32_expr("=-5", "==-5")
assert_int32_expr("=5", "==5")
# Run the same tests against an lmdb backend
class LdbLMDBIndexedComparisonExpressions(LdbTDBIndexedComparisonExpressions):
def setUp(self):
if os.environ.get('HAVE_LMDB', '1') == '0':
self.skipTest("No lmdb backend")
self.prefix = MDB_PREFIX
super(LdbLMDBIndexedComparisonExpressions, self).setUp()
def tearDown(self):
super(LdbLMDBIndexedComparisonExpressions, self).tearDown()
TestProgram(module=__name__, opts=[])
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