Added tests for the open_link method.

rtv/config.py

@@ -17,7 +17,7 @@ PACKAGE = os.path.dirname(__file__)
 HOME = os.path.expanduser('~')
 TEMPLATE = os.path.join(PACKAGE, 'templates')
 DEFAULT_CONFIG = os.path.join(TEMPLATE, 'rtv.cfg')
-DEFAULT_MAILCAP = os.path.join(TEMPLATE 'mailcap')
+DEFAULT_MAILCAP = os.path.join(TEMPLATE, 'mailcap')
 XDG_HOME = os.getenv('XDG_CONFIG_HOME', os.path.join(HOME, '.config'))
 CONFIG = os.path.join(XDG_HOME, 'rtv', 'rtv.cfg')
 MAILCAP = os.path.join(XDG_HOME, '.mailcap')