3 files changed, 11 insertions, 14 deletions
diff --git a/Library/Homebrew/dev-cmd/audit.rb b/Library/Homebrew/dev-cmd/audit.rb
index 9ea3faf11..cb25ca794 100644
--- a/Library/Homebrew/dev-cmd/audit.rb
+++ b/Library/Homebrew/dev-cmd/audit.rb
@@ -65,9 +65,6 @@ module Homebrew
     ENV.activate_extensions!
     ENV.setup_build_environment
 
-    # Add RubyGems (for RuboCop).
-    ENV["PATH"] = PATH.new(ENV["PATH"]).append(HOMEBREW_GEM_HOME/"bin")
-
     if ARGV.named.empty?
       ff = Formula
       files = Tap.map(&:formula_dir)
diff --git a/Library/Homebrew/dev-cmd/man.rb b/Library/Homebrew/dev-cmd/man.rb
index 6e71c248b..4e5103910 100644
--- a/Library/Homebrew/dev-cmd/man.rb
+++ b/Library/Homebrew/dev-cmd/man.rb
@@ -35,7 +35,7 @@ module Homebrew
   end
 
   def regenerate_man_pages
-    Homebrew.run_bundler_if_needed!
+    Homebrew.install_gem_setup_path! "ronn"
 
     markup = build_man_page
     convert_man_page(markup, TARGET_DOC_PATH/"Manpage.md")
diff --git a/Library/Homebrew/dev-cmd/tests.rb b/Library/Homebrew/dev-cmd/tests.rb
index da1f5365c..72d6143fc 100644
--- a/Library/Homebrew/dev-cmd/tests.rb
+++ b/Library/Homebrew/dev-cmd/tests.rb
@@ -49,6 +49,8 @@ module Homebrew
         FileUtils.rm_f "test/coverage/.resultset.json"
       end
 
+      ENV["BUNDLE_GEMFILE"] = "#{HOMEBREW_LIBRARY_PATH}/test/Gemfile"
+
       # Override author/committer as global settings might be invalid and thus
       # will cause silent failure during the setup of dummy Git repositories.
       %w[AUTHOR COMMITTER].each do |role|
@@ -57,7 +59,10 @@ module Homebrew
         ENV["GIT_#{role}_DATE"]  = "Sun Jan 22 19:59:13 2017 +0000"
       end
 
-      Homebrew.run_bundler_if_needed!
+      Homebrew.install_gem_setup_path! "bundler"
+      unless quiet_system("bundle", "check")
+        system "bundle", "install"
+      end
 
       parallel = true
 
@@ -101,15 +106,10 @@ module Homebrew
         files = files.reject { |p| p =~ %r{^test/os/linux(/.*|_spec\.rb)$} }
       end
 
-      files.map! { |p| HOMEBREW_LIBRARY_PATH/p }
-
-      (HOMEBREW_LIBRARY_PATH/"vendor/#{RUBY_ENGINE}/#{RUBY_VERSION}").cd do
-        if parallel
-          system "parallel_rspec", *opts, "--", *args, "--", *files
-        else
-          system "rspec", *args, "--", *files
-        end
-        FileUtils.rm_rf "tmp"
+      if parallel
+        system "bundle", "exec", "parallel_rspec", *opts, "--", *args, "--", *files
+      else
+        system "bundle", "exec", "rspec", *args, "--", *files
       end
 
       return if $?.success?