tests: indent line number output +1 and PEP8

tests/test.py

@@ -169,7 +169,7 @@ class TestContainer(object):
     def _test_repository_indents(self, include, contents):
         for i, line in enumerate(contents.splitlines()):
             self.assertRegex(line, r"^\t*\S",
-                             "Indent must be tabs in line %d" % i)
+                             "Indent must be tabs in line %d" % (i + 1))
 
     def _test_package(self, include, data):
         for k, v in data.items():
@@ -307,7 +307,7 @@ class ChannelTests(TestContainer, unittest.TestCase):
             try:
                 data = json.loads(source)
             except Exception as e:
-                yield cls._fail("Could not parse %s" % repository ,e)
+                yield cls._fail("Could not parse %s" % repository, e)
                 continue
 
             # Check for the schema version first (and generator failures it's
@@ -339,6 +339,8 @@ class ChannelTests(TestContainer, unittest.TestCase):
                             ("%s (%s)" % (package_name, repository),
                              release, False))
 
+            # TODO: test includes
+
 
 @generator_class
 class RepositoryTests(TestContainer, unittest.TestCase):