⚡️ require_relative > require for internal files

ref: panorama-ed/memo_wise#349
ref: rubocop/rubocop#8748

lib/gem_bench.rb

@@ -2,13 +2,14 @@
 require "version_gem"
 require "bundler" # This gem utilizes bundler as a tool.
 
-require "gem_bench/version"
-require "gem_bench/scout"
-require "gem_bench/player"
-require "gem_bench/team"
-require "gem_bench/gemfile_line_tokenizer"
-require "gem_bench/strict_version_gem"
-require "gem_bench/strict_version_requirement"
+# this library
+require_relative "gem_bench/version"
+require_relative "gem_bench/scout"
+require_relative "gem_bench/player"
+require_relative "gem_bench/team"
+require_relative "gem_bench/gemfile_line_tokenizer"
+require_relative "gem_bench/strict_version_gem"
+require_relative "gem_bench/strict_version_requirement"
 
 module GemBench
   USAGE = "[GemBench] Usage: Require another gem in this session to evaluate it.\n\tExample:\n\t\trequire 'rails'\n\t\tGemBench.check({verbose: true})\n"

lib/gem_bench/jersey.rb

@@ -110,15 +110,14 @@ def as_klass
     private
 
     def load_gem_copy(files)
+      puts "Requiring copy of #{gem_name} with: #{files.inspect}" if verbose
+      # These are absolute file paths, so they can use `require`
       files.each do |filepath|
-        # begin
+        # But files required here may not load their own internal files properly if they are still using `require`.
+        # Since Ruby 2.2, best practice for ruby libraries is to use require_relative for internal files,
+        #   and require for external files and dependencies.
+        # Ref: https://github.com/panorama-ed/memo_wise/issues/349
         require filepath
-        # rescue LoadError => e
-        #   puts file.to_s
-        #   puts tempfile.path
-        #   puts e.class
-        #   puts e.message
-        # end
       end
     end