bot: raise ValueError instead of RuntimeError

sopel/bot.py

@@ -205,7 +205,7 @@ def has_channel_privilege(self, channel, privilege):
 
         :param str channel: a channel the bot is in
         :param int privilege: privilege level to check
-        :raise RuntimeError: when the channel is unknown
+        :raise ValueError: when the channel is unknown
 
         This method checks the bot's privilege level in a channel, i.e. if it
         has this level or higher privileges::
@@ -216,9 +216,10 @@ def has_channel_privilege(self, channel, privilege):
 
         The ``channel`` argument can be either a :class:`str` or a
         :class:`sopel.tools.Identifier`, as long as Sopel joined said channel.
+        If the channel is unknown, a :exc:`ValueError` will be raised.
         """
         if channel not in self.channels:
-            raise RuntimeError('Unknown channel %s' % channel)
+            raise ValueError('Unknown channel %s' % channel)
 
         return self.channels[channel].has_privilege(self.nick, privilege)
 

test/test_bot.py

@@ -772,7 +772,7 @@ def test_has_channel_privilege_no_privilege(ircfactory, botfactory, tmpconfig):
     name = Identifier('#adminchannel')
 
     # unknown channel
-    with pytest.raises(RuntimeError):
+    with pytest.raises(ValueError):
         sopel.has_channel_privilege('#adminchannel', plugin.VOICE)
 
     # join channel
@@ -793,7 +793,7 @@ def test_has_channel_privilege_no_privilege(ircfactory, botfactory, tmpconfig):
     assert not sopel.has_channel_privilege('#adminchannel', plugin.OPER)
 
     # unknown channel
-    with pytest.raises(RuntimeError):
+    with pytest.raises(ValueError):
         sopel.has_channel_privilege('#anotherchannel', plugin.VOICE)