Issue 395 - Filter hits statistics backend

sitescripts/filterhits/test/db_tests.py

Index: sitescripts/filterhits/test/db_tests.py
diff --git a/sitescripts/filterhits/test/db_tests.py b/sitescripts/filterhits/test/db_tests.py
new file mode 100644
index 0000000000000000000000000000000000000000..1f9b6a0d2107c60fea0d85c5f8bb8afe711496b6
--- /dev/null
+++ b/sitescripts/filterhits/test/db_tests.py
@@ -0,0 +1,68 @@
+# coding: utf-8
+
+# This file is part of the Adblock Plus web scripts,
+# Copyright (C) 2006-2015 Eyeo GmbH
+#
+# Adblock Plus is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 3 as
+# published by the Free Software Foundation.
+#
+# Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
+
+import unittest, MySQLdb
+from datetime import datetime
+
+import sitescripts.filterhits.db as db
+
+class DbTestCase(unittest.TestCase):
+  longMessage = True
+  maxDiff = None
+
+  def clear_rows(self):
+    if self.db:
+      db.write(self.db, (("DELETE FROM filters",),))
+
+  def setUp(self):
+    try:
+      db.testing = True
+      self.db = db.connect()
+    except MySQLdb.Error:
+      self.db = None
+    self.clear_rows()
+
+  def tearDown(self):
+    if self.db:
+      self.clear_rows()
+      self.db.close()
+      self.db = None
+
+  def test_query_and_write(self):
+    if not self.db:
+      raise unittest.SkipTest("Not connected to test DB.")
+
+    insert_sql = """INSERT INTO `filters` (filter, sha1)
+                    VALUES (%s, UNHEX(SHA1(filter)))"""
+    select_sql = "SELECT filter FROM filters ORDER BY filter ASC"
+
+    # Table should be empty to start with
+    self.assertEqual(db.query(self.db, select_sql), ())
+    # Write some data and query it back
+    db.write(self.db, ((insert_sql, "something"),))
+    self.assertEqual(db.query(self.db, select_sql), ((u"something",),))
+    # Write an array of SQL strings
+    db.write(self.db, ((insert_sql, "a"), (insert_sql, "b"), (insert_sql, "c")))
+    self.assertEqual(db.query(self.db, select_sql), ((u"a",), (u"b",), (u"c",), (u"something",)))
+    # Write a sequence of SQL but roll back when a problem arrises
+    with self.assertRaises(MySQLdb.ProgrammingError):
+      db.write(self.db, ((insert_sql, "f"), (insert_sql, "g"), (insert_sql, "h"),
+                         ("GFDGks",)))
+    self.assertEqual(db.query(self.db, select_sql), ((u"a",), (u"b",), (u"c",), (u"something",)))
+
+if __name__ == '__main__':
+  unittest.main()