1 files changed, 148 insertions, 0 deletions
diff --git a/python/samba/tests/samdb_api.py b/python/samba/tests/samdb_api.py
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+++ b/python/samba/tests/samdb_api.py
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+# Tests for the samba samdb api
+#
+# Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
+#
+# 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/>.
+#
+
+from samba.tests import TestCaseInTempDir
+from samba.samdb import SamDB
+from ldb import LdbError, ERR_OPERATIONS_ERROR
+import errno
+
+
+class SamDBApiTestCase(TestCaseInTempDir):
+
+    def tearDown(self):
+        self.rm_files("test.db", "existing.db", allow_missing=True)
+
+        super().tearDown()
+
+    # Attempt to open and existing non tdb file as a tdb file.
+    # Don't create new db is set, the default
+    #
+    # Should fail to open
+    # And the existing file should be left intact.
+    #
+    def test_dont_create_db_existing_non_tdb_file(self):
+        existing_name = self.tempdir + "/existing.db"
+        existing = open(existing_name, "w")
+        existing.write("This is not a tdb file!!!!!!\n")
+        existing.close()
+
+        try:
+            SamDB(url="tdb://" + existing_name)
+            self.fail("Exception not thrown ")
+        except LdbError as e:
+            (err, _) = e.args
+            self.assertEqual(err, ERR_OPERATIONS_ERROR)
+
+        existing = open(existing_name, "r")
+        contents = existing.readline()
+        self.assertEqual("This is not a tdb file!!!!!!\n", contents)
+
+    # Attempt to open and existing non tdb file as a tdb file.
+    # Don't create new db is cleared
+    #
+    # Should open as a tdb file
+    # And the existing file should be over written
+    #
+    def test_create_db_existing_file_non_tdb_file(self):
+        existing_name = self.tempdir + "/existing.db"
+        existing = open(existing_name, "wb")
+        existing.write(b"This is not a tdb file!!!!!!")
+        existing.close()
+
+        SamDB(url="tdb://" + existing_name, flags=0)
+
+        existing = open(existing_name, "rb")
+        contents = existing.readline()
+        self.assertEqual(b"TDB file\n", contents)
+
+    #
+    # Attempt to open an existing tdb file as a tdb file.
+    # Don't create new db is set, the default
+    #
+    # Should open successfully
+    # And the existing file should be left intact.
+    #
+    def test_dont_create_db_existing_tdb_file(self):
+        existing_name = self.tempdir + "/existing.db"
+        initial = SamDB(url="tdb://" + existing_name, flags=0)
+        dn = "dn=,cn=test_dont_create_db_existing_tdb_file"
+        initial.add({
+            "dn": dn,
+            "cn": "test_dont_create_db_existing_tdb_file"
+        })
+
+        cn = initial.searchone("cn", dn)
+        self.assertEqual(b"test_dont_create_db_existing_tdb_file", cn)
+
+        second = SamDB(url="tdb://" + existing_name)
+        cn = second.searchone("cn", dn)
+        self.assertEqual(b"test_dont_create_db_existing_tdb_file", cn)
+
+    #
+    # Attempt to open an existing tdb file as a tdb file.
+    # Don't create new db is explicitly cleared
+    #
+    # Should open successfully
+    # And the existing file should be left intact.
+    #
+    def test_create_db_existing_file_tdb_file(self):
+        existing_name = self.tempdir + "/existing.db"
+        initial = SamDB(url="tdb://" + existing_name, flags=0)
+        dn = "dn=,cn=test_dont_create_db_existing_tdb_file"
+        initial.add({
+            "dn": dn,
+            "cn": "test_dont_create_db_existing_tdb_file"
+        })
+
+        cn = initial.searchone("cn", dn)
+        self.assertEqual(b"test_dont_create_db_existing_tdb_file", cn)
+
+        second = SamDB(url="tdb://" + existing_name, flags=0)
+        cn = second.searchone("cn", dn)
+        self.assertEqual(b"test_dont_create_db_existing_tdb_file", cn)
+
+    # Open a non existent TDB file.
+    # Don't create new db is set, the default
+    #
+    # Should fail
+    # and the database file should not be created
+    def test_dont_create_db_new_file(self):
+        try:
+            SamDB(url="tdb://" + self.tempdir + "/test.db")
+            self.fail("Exception not thrown ")
+        except LdbError as e1:
+            (err, _) = e1.args
+            self.assertEqual(err, ERR_OPERATIONS_ERROR)
+
+        try:
+            file = open(self.tempdir + "/test.db", "r")
+            self.fail("New database file created")
+        except IOError as e:
+            self.assertEqual(e.errno, errno.ENOENT)
+
+    # Open a SamDB with the don't create new DB flag cleared.
+    # The underlying database file does not exist.
+    #
+    # Should successful open the SamDB creating a new database file.
+    #
+
+    def test_create_db_new_file(self):
+        SamDB(url="tdb://" + self.tempdir + "/test.db", flags=0)
+        existing = open(self.tempdir + "/test.db", mode="rb")
+        contents = existing.readline()
+        self.assertEqual(b"TDB file\n", contents)