Allow overriding conversations_id limit with an argument

Author: eizengan

lib/slack/web/api/mixins/conversations.id.rb

@@ -12,8 +12,12 @@ module Conversations
           #
           # @option options [channel] :channel
           #   Channel to get ID for, prefixed with #.
+          # @option options [integer] :limit
+          #   The page size used for conversations_list calls required to find the channel's ID
           def conversations_id(options = {})
             name = options[:channel]
+            limit = options.fetch(:limit, conversations_id_page_size)
+
             raise ArgumentError, 'Required arguments :channel missing' if name.nil?
 
             id_for(
@@ -23,7 +27,7 @@ def conversations_id(options = {})
               :conversations_list,
               :channels,
               'channel_not_found',
-              enum_method_options: { limit: conversations_id_page_size }
+              enum_method_options: { limit: limit }
             )
           end
         end

spec/slack/web/api/mixins/conversations_spec.rb

@@ -37,6 +37,11 @@
       )
     end
 
+    it 'forwards a provided limit to the underlying conversations_list calls' do
+      expect(conversations).to receive(:conversations_list).with(limit: 1234)
+      conversations.conversations_id(channel: '#general', limit: 1234)
+    end
+
     it 'fails with an exception' do
       expect { conversations.conversations_id(channel: '#invalid') }.to(
         raise_error(Slack::Web::Api::Errors::SlackError, 'channel_not_found')