tests: Add tests for imaputil.* functions

Add one test for each of the functions in offlineimap.imaputil, to make
sure they keep working. These functions tests the internal innards of
the offlineimap module rather than invoking offlineimap as a program.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>

test/OLItest/TestRunner.py

@@ -24,10 +24,8 @@ import subprocess
 import tempfile
 import random
 random.seed()
-try:
-    from configparser import SafeConfigParser
-except ImportError: # python 2
-    from ConfigParser import SafeConfigParser
+
+from offlineimap.CustomConfig import CustomConfigParser
 from . import default_conf
 
 
@@ -75,7 +73,7 @@ class OLITestLib():
         #TODO, only do first time and cache then for subsequent calls?
         assert cls.cred_file != None
         assert cls.testdir != None
-        config = SafeConfigParser()
+        config = CustomConfigParser()
         config.readfp(default_conf)
         default_conf.seek(0) # rewind config_file to start
         config.read(cls.cred_file)

test/tests/__init__.py

@@ -0,0 +1 @@
+

test/tests/test_00_imaputil.py

@@ -0,0 +1,96 @@
+# Copyright (C) 2012- Sebastian Spaeth & contributors
+#
+#    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 2 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, write to the Free Software
+#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+import unittest
+import logging
+
+from offlineimap import imaputil
+from offlineimap.ui import UI_LIST, setglobalui
+from offlineimap.CustomConfig import CustomConfigParser
+
+from test.OLItest import OLITestLib
+
+# Things need to be setup first, usually setup.py initializes everything.
+# but if e.g. called from command line, we take care of default values here:
+if not OLITestLib.cred_file:
+    OLITestLib(cred_file='./test/credentials.conf', cmd='./offlineimap.py')
+
+def setUpModule():
+    logging.info("Set Up test module %s" % __name__)
+    tdir = OLITestLib.create_test_dir(suffix=__name__)
+
+def tearDownModule():
+    logging.info("Tear Down test module")
+    # comment out next line to keep testdir after test runs. TODO: make nicer
+    OLITestLib.delete_test_dir()
+
+#Stuff that can be used
+#self.assertEqual(self.seq, range(10))
+# should raise an exception for an immutable sequence
+#self.assertRaises(TypeError, random.shuffle, (1,2,3))
+#self.assertTrue(element in self.seq)
+#self.assertFalse(element in self.seq)
+
+class TestInternalFunctions(unittest.TestCase):
+    """While the other test files test OfflineImap as a program, these
+    tests directly invoke internal helper functions to guarantee that
+    they deliver results as expected"""
+
+    @classmethod
+    def setUpClass(cls):
+        #This is run before all tests in this class
+        config= OLITestLib.get_default_config()
+        setglobalui(UI_LIST['quiet'](config))
+
+    def test_01_imapsplit(self):
+        """Test imaputil.imapsplit()"""
+        res = imaputil.imapsplit(b'(\\HasNoChildren) "." "INBOX.Sent"')
+        self.assertEqual(res, [b'(\\HasNoChildren)', b'"."', b'"INBOX.Sent"'])
+
+    def test_02_flagsplit(self):
+        """Test imaputil.flagsplit()"""
+        res = imaputil.flagsplit(b'(\\Draft \\Deleted)')
+        self.assertEqual(res, [b'\\Draft', b'\\Deleted'])
+
+        res = imaputil.flagsplit(b'(FLAGS (\\Seen Old) UID 4807)')
+        self.assertEqual(res, [b'FLAGS', b'(\\Seen Old)', b'UID', b'4807'])
+
+    def test_03_options2hash(self):
+        """Test imaputil.options2hash()"""
+        res = imaputil.options2hash([1,2,3,4,5,6])
+        self.assertEqual(res, {1:2, 3:4, 5:6})
+
+    def test_04_flags2hash(self):
+        """Test imaputil.flags2hash()"""
+        res = imaputil.flags2hash(b'(FLAGS (\\Seen Old) UID 4807)')
+        self.assertEqual(res, {b'FLAGS': b'(\\Seen Old)', b'UID': b'4807'})
+
+    def test_05_flagsimap2maildir(self):
+        """Test imaputil.flagsimap2maildir()"""
+        res = imaputil.flagsimap2maildir(b'(\\Draft \\Deleted)')
+        self.assertEqual(res, set(b'DT'))
+
+    def test_06_flagsmaildir2imap(self):
+        """Test imaputil.flagsmaildir2imap()"""
+        res = imaputil.flagsmaildir2imap(set(b'DR'))
+        self.assertEqual(res, b'(\\Answered \\Draft)')
+        # test all possible flags
+        res = imaputil.flagsmaildir2imap(set(b'SRFTD'))
+        self.assertEqual(res, b'(\\Answered \\Deleted \\Draft \\Flagged \\Seen)')
+
+    def test_07_uid_sequence(self):
+        """Test imaputil.uid_sequence()"""
+        res = imaputil.uid_sequence([1,2,3,4,5,10,12,13])
+        self.assertEqual(res, b'1:5,10,12:13')