correction on the sanitize title method, change in title resulting

test/test_utils.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+
+# Various small unit tests
+
+from youtube_dl.utils import sanitize_filename
+
+def test_sanitize_filename():
+	assert sanitize_filename(u'abc') == u'abc'
+	assert sanitize_filename(u'abc_d-e') == u'abc_d-e'
+
+	assert sanitize_filename(u'123') == u'123'
+
+	assert u'/' not in sanitize_filename(u'abc/de')
+	assert u'abc' in sanitize_filename(u'abc/de')
+	assert u'de' in sanitize_filename(u'abc/de')
+	assert u'/' not in sanitize_filename(u'abc/de///')
+
+	assert u'\\' not in sanitize_filename(u'abc\\de')
+	assert u'abc' in sanitize_filename(u'abc\\de')
+	assert u'de' in sanitize_filename(u'abc\\de')
+
+	assert sanitize_filename(u'ä') == u'ä'
+	assert sanitize_filename(u'кириллица') == u'кириллица'