Extend tests

Rakefile

@@ -19,6 +19,6 @@ RuboCop::RakeTask.new(:rubocop) do |task|
 end
 
 desc 'Run Prettier'
-task(:prettier) { system('npm run lint') }
+task(:prettier) { sh 'npm run lint' }
 
 task default: %i[spec rubocop prettier]

lib/ears.rb

@@ -8,7 +8,6 @@
 module Ears
   class << self
     # The global configuration for Ears.
-    # @attribute [r] configuration
     # @return [Ears::Configuration]
     def configuration
       @configuration ||= Ears::Configuration.new
@@ -74,9 +73,7 @@ def error!(error)
 
     # Used internally for testing.
     def reset!
-      @connection = nil
-      @configuration = nil
-      Thread.current[:ears_channel] = nil
+      @configuration = @connection = Thread.current[:ears_channel] = nil
     end
 
     private