Gemfile in simple_text_extract-2.0.0 vs Gemfile in simple_text_extract-3.0.0

@@ -3,5 +3,12 @@
 source "https://rubygems.org"
 
 git_source(:github) { |repo_name| "https://github.com/#{repo_name}" }
 
 gemspec
+
+gem "memory_profiler"
+gem "minitest"
+gem "mocha"
+gem "pry"
+gem "rake"
+gem "rubocop"