Gemfile in fast_excel-0.1.6 vs Gemfile in fast_excel-0.1.7

@@ -1,5 +1,9 @@
 source 'https://rubygems.org'
 
 gem 'ffi'
 gem 'ffi_gen'
-gem 'axlsx'
+gem 'axlsx'
+
+gem 'roo'
+gem 'minitest'
+gem 'minitest-reporters'
\ No newline at end of file