Expose Slack::RealTime::Client.logger accessor publicly (#290)

Author: jcraigk

CHANGELOG.md

@@ -1,6 +1,7 @@
 ### 0.14.4 (Next)
 
 * [#289](https://github.com/slack-ruby/slack-ruby-client/pull/289): Fix reconnects when ping timers under/overshoot - [@georgyangelov](https://github.com/georgyangelov).
+* [#290](https://github.com/slack-ruby/slack-ruby-client/pull/290): Expose Slack::RealTime::Client.logger accessor publicly - [@jcraigk](https://github.com/jcraigk).
 * Your contribution here.
 
 ### 0.14.3 (2019/7/23)

lib/slack/real_time/client.rb

@@ -19,8 +19,8 @@ class << self
       attr_accessor :store
       attr_accessor :url
       attr_accessor(*Config::ATTRIBUTES)
+      attr_accessor :logger
 
-      protected :logger, :logger=
       protected :store_class, :store_class=
 
       def initialize(options = {})

spec/slack/real_time/client_spec.rb

@@ -328,6 +328,15 @@
         end
       end
     end
+    describe 'logger accessor' do
+      let(:client) { Slack::RealTime::Client.new }
+      it 'exposes public logger' do
+        expect(client.logger).to be_a(::Logger)
+      end
+      it 'exposes public logger=' do
+        expect { client.logger = nil }.not_to raise_error(NoMethodError)
+      end
+    end
   end
   context 'global config' do
     after do