Rakefile in sidekiq-datadog-0.4.1 vs Rakefile in sidekiq-datadog-0.5.0

@@ -1,7 +1,23 @@
-require "bundler/gem_tasks"
+require 'bundler/gem_tasks'
+
+begin
+  Bundler.setup(:default, :development)
+rescue Bundler::BundlerError => e
+  warn e.message
+  warn 'Run `bundle install` to install missing gems'
+  exit e.status_code
+end
+
 require 'rake'
+
 require 'rspec/core'
 require 'rspec/core/rake_task'
 
-RSpec::Core::RakeTask.new(:spec)
-task :default => :spec
+RSpec::Core::RakeTask.new(:spec) do |spec|
+  spec.pattern = FileList['spec/**/*_spec.rb']
+end
+
+require 'rubocop/rake_task'
+RuboCop::RakeTask.new(:rubocop)
+
+task default: %i[spec rubocop]