From ab0580fd65c63a6e1f3f48d8654e33aeda64699d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Rodr=C3=ADguez?= <deivid.rodriguez@riseup.net>
Date: Tue, 24 Mar 2020 19:51:43 +0100
Subject: [PATCH] Enable Style/PercentLiteralDelimiters cop in rubygems

So it matches the style used by bundler.
---
 .rubocop.yml                                  |  3 +
 Rakefile                                      |  6 +-
 lib/rubygems.rb                               |  2 +-
 lib/rubygems/commands/setup_command.rb        |  2 +-
 lib/rubygems/ext/ext_conf_builder.rb          |  2 +-
 lib/rubygems/safe_yaml.rb                     |  8 +-
 lib/rubygems/server.rb                        |  2 +-
 lib/rubygems/source/git.rb                    |  4 +-
 lib/rubygems/specification.rb                 |  2 +-
 lib/rubygems/test_case.rb                     |  4 +-
 lib/rubygems/test_utilities.rb                |  4 +-
 lib/rubygems/util/licenses.rb                 |  8 +-
 test/rubygems/test_gem.rb                     | 40 ++++----
 test/rubygems/test_gem_command.rb             |  4 +-
 .../test_gem_commands_cleanup_command.rb      |  2 +-
 .../test_gem_commands_contents_command.rb     | 28 +++---
 .../test_gem_commands_environment_command.rb  | 42 ++++----
 .../test_gem_commands_info_command.rb         | 12 +--
 .../test_gem_commands_install_command.rb      |  6 +-
 test/rubygems/test_gem_commands_mirror.rb     |  2 +-
 .../test_gem_commands_open_command.rb         |  6 +-
 .../test_gem_commands_owner_command.rb        |  6 +-
 .../test_gem_commands_pristine_command.rb     |  8 +-
 .../test_gem_commands_push_command.rb         |  4 +-
 .../test_gem_commands_query_command.rb        |  8 +-
 .../test_gem_commands_setup_command.rb        |  8 +-
 ...test_gem_commands_specification_command.rb | 36 +++----
 .../test_gem_commands_uninstall_command.rb    |  2 +-
 .../test_gem_commands_which_command.rb        |  6 +-
 .../test_gem_commands_yank_command.rb         | 12 +--
 .../rubygems/test_gem_dependency_installer.rb |  4 +-
 .../test_gem_dependency_resolution_error.rb   |  2 +-
 test/rubygems/test_gem_ext_builder.rb         | 24 ++---
 test/rubygems/test_gem_ext_cmake_builder.rb   | 10 +-
 .../test_gem_ext_configure_builder.rb         |  2 +-
 test/rubygems/test_gem_ext_rake_builder.rb    | 18 ++--
 test/rubygems/test_gem_indexer.rb             | 16 ++--
 test/rubygems/test_gem_installer.rb           | 36 +++----
 test/rubygems/test_gem_package.rb             |  4 +-
 test/rubygems/test_gem_remote_fetcher.rb      |  2 +-
 test/rubygems/test_gem_request.rb             | 22 ++---
 test/rubygems/test_gem_request_set.rb         |  4 +-
 ...test_gem_request_set_gem_dependency_api.rb |  2 +-
 test/rubygems/test_gem_resolver.rb            |  2 +-
 test/rubygems/test_gem_security_signer.rb     |  2 +-
 test/rubygems/test_gem_server.rb              | 20 ++--
 test/rubygems/test_gem_specification.rb       | 96 +++++++++----------
 test/rubygems/test_gem_uninstaller.rb         | 26 ++---
 test/rubygems/test_require.rb                 | 44 ++++-----
 49 files changed, 309 insertions(+), 306 deletions(-)

diff --git a/.rubocop.yml b/.rubocop.yml
index 1087db19c68b..f963a7d5e1c4 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -89,3 +89,6 @@ Style/MutableConstant:
 
 Style/BlockDelimiters:
   Enabled: true
+
+Style/PercentLiteralDelimiters:
+  Enabled: true
diff --git a/Rakefile b/Rakefile
index 57282267a26c..49515ba497e3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -76,7 +76,7 @@ namespace :rubocop do
   end
 end
 
-task rubocop: %w(rubocop:rubygems rubocop:bundler)
+task rubocop: %w[rubocop:rubygems rubocop:bundler]
 
 desc "Run a test suite bisection"
 task(:bisect) do
@@ -275,7 +275,7 @@ namespace 'blog' do
 
     history.force_encoding Encoding::UTF_8
 
-    _, change_log, = history.split %r%^===\s*\d.*%, 3
+    _, change_log, = history.split %r{^===\s*\d.*}, 3
 
     change_types = []
 
@@ -386,7 +386,7 @@ module Rubygems
 
     def self.all
       files = []
-      exclude = %r[\.git|\./bundler/(?!lib|man|exe|[^/]+\.md|bundler.gemspec)]ox
+      exclude = %r{\.git|\./bundler/(?!lib|man|exe|[^/]+\.md|bundler.gemspec)}ox
       tracked_files = `git ls-files`.split("\n").map {|f| "./#{f}" }
 
       tracked_files.each do |path|
diff --git a/lib/rubygems.rb b/lib/rubygems.rb
index 20d46f6094f8..391c72c8248b 100644
--- a/lib/rubygems.rb
+++ b/lib/rubygems.rb
@@ -1011,7 +1011,7 @@ def self.plugin_suffix_regexp
   def self.suffixes
     @suffixes ||= ['',
                    '.rb',
-                   *%w(DLEXT DLEXT2).map do |key|
+                   *%w[DLEXT DLEXT2].map do |key|
                      val = RbConfig::CONFIG[key]
                      next unless val and not val.empty?
                      ".#{val}"
diff --git a/lib/rubygems/commands/setup_command.rb b/lib/rubygems/commands/setup_command.rb
index d67caca91cde..679803c33845 100644
--- a/lib/rubygems/commands/setup_command.rb
+++ b/lib/rubygems/commands/setup_command.rb
@@ -546,7 +546,7 @@ def remove_old_bin_files(bin_dir)
       next unless Gem.win_platform?
 
       File.open "#{old_bin_path}.bat", 'w' do |fp|
-        fp.puts %{@ECHO.#{deprecation_message}}
+        fp.puts %(@ECHO.#{deprecation_message})
       end
     end
   end
diff --git a/lib/rubygems/ext/ext_conf_builder.rb b/lib/rubygems/ext/ext_conf_builder.rb
index 88be7ecfe8ec..d06e923a30a9 100644
--- a/lib/rubygems/ext/ext_conf_builder.rb
+++ b/lib/rubygems/ext/ext_conf_builder.rb
@@ -27,7 +27,7 @@ def self.build(extension, dest_path, results, args=[], lib_dir=nil)
     # Details: https://github.com/rubygems/rubygems/issues/977#issuecomment-171544940
     tmp_dest = get_relative_path(tmp_dest)
 
-    Tempfile.open %w"siteconf .rb", "." do |siteconf|
+    Tempfile.open %w[siteconf .rb], "." do |siteconf|
       siteconf.puts "require 'rbconfig'"
       siteconf.puts "dest_path = #{tmp_dest.dump}"
       %w[sitearchdir sitelibdir].each do |dir|
diff --git a/lib/rubygems/safe_yaml.rb b/lib/rubygems/safe_yaml.rb
index 3540fd74ddee..29312ad5a134 100644
--- a/lib/rubygems/safe_yaml.rb
+++ b/lib/rubygems/safe_yaml.rb
@@ -7,7 +7,7 @@ module Gem
   # Psych.safe_load
 
   module SafeYAML
-    PERMITTED_CLASSES = %w(
+    PERMITTED_CLASSES = %w[
       Symbol
       Time
       Date
@@ -19,12 +19,12 @@ module SafeYAML
       Gem::Version::Requirement
       YAML::Syck::DefaultKey
       Syck::DefaultKey
-    ).freeze
+    ].freeze
 
-    PERMITTED_SYMBOLS = %w(
+    PERMITTED_SYMBOLS = %w[
       development
       runtime
-    ).freeze
+    ].freeze
 
     if ::YAML.respond_to? :safe_load
       def self.safe_load(input)
diff --git a/lib/rubygems/server.rb b/lib/rubygems/server.rb
index 83d7cf5abc86..b2130852e068 100644
--- a/lib/rubygems/server.rb
+++ b/lib/rubygems/server.rb
@@ -573,7 +573,7 @@ def quick(req, res)
     add_date res
 
     case req.request_uri.path
-    when %r|^/quick/(Marshal.#{Regexp.escape Gem.marshal_version}/)?(.*?)\.gemspec\.rz$| then
+    when %r{^/quick/(Marshal.#{Regexp.escape Gem.marshal_version}/)?(.*?)\.gemspec\.rz$} then
       marshal_format, full_name = $1, $2
       specs = Gem::Specification.find_all_by_full_name(full_name)
 
diff --git a/lib/rubygems/source/git.rb b/lib/rubygems/source/git.rb
index 0b8a4339cc79..ec2c371fa9da 100644
--- a/lib/rubygems/source/git.rb
+++ b/lib/rubygems/source/git.rb
@@ -228,8 +228,8 @@ def uri_hash # :nodoc:
     require 'digest' # required here to avoid deadlocking in Gem.activate_bin_path (because digest is a gem on 2.5+)
 
     normalized =
-      if @repository =~ %r%^\w+://(\w+@)?%
-        uri = URI(@repository).normalize.to_s.sub %r%/$%,''
+      if @repository =~ %r{^\w+://(\w+@)?}
+        uri = URI(@repository).normalize.to_s.sub %r{/$},''
         uri.sub(/\A(\w+)/) { $1.downcase }
       else
         @repository
diff --git a/lib/rubygems/specification.rb b/lib/rubygems/specification.rb
index d9f93a2a3377..f4722fd7a863 100644
--- a/lib/rubygems/specification.rb
+++ b/lib/rubygems/specification.rb
@@ -2188,7 +2188,7 @@ def pretty_print(q) # :nodoc:
 
       attributes.each do |attr_name|
         current_value = self.send attr_name
-        current_value = current_value.sort if %i(files test_files).include? attr_name
+        current_value = current_value.sort if %i[files test_files].include? attr_name
         if current_value != default_value(attr_name) or
            self.class.required_attribute? attr_name
 
diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index ebfe979a1b9e..27b70222c9c7 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -576,7 +576,7 @@ def have_git?
   end
 
   def in_path?(executable) # :nodoc:
-    return true if %r%\A([A-Z]:|/)% =~ executable and File.exist? executable
+    return true if %r{\A([A-Z]:|/)} =~ executable and File.exist? executable
 
     ENV['PATH'].split(File::PATH_SEPARATOR).any? do |directory|
       File.exist? File.join directory, executable
@@ -1286,7 +1286,7 @@ class << self
 
     def escape_path(*path)
       path = File.join(*path)
-      if %r'\A[-+:/=@,.\w]+\z' =~ path
+      if %r{\A[-+:/=@,.\w]+\z} =~ path
         path
       else
         "\"#{path.gsub(/[`$"]/, '\\&')}\""
diff --git a/lib/rubygems/test_utilities.rb b/lib/rubygems/test_utilities.rb
index 69ff05370ecf..6ae3c0e986e7 100644
--- a/lib/rubygems/test_utilities.rb
+++ b/lib/rubygems/test_utilities.rb
@@ -49,7 +49,7 @@ def find_data(path, nargs = 3)
 
     path = path.to_s
     @paths << path
-    raise ArgumentError, 'need full URI' unless path =~ %r'^https?://'
+    raise ArgumentError, 'need full URI' unless path =~ %r{^https?://}
 
     unless @data.key? path
       raise Gem::RemoteFetcher::FetchError.new("no data for #{path}", path)
@@ -121,7 +121,7 @@ def fetch_size(path)
     path = path.to_s
     @paths << path
 
-    raise ArgumentError, 'need full URI' unless path =~ %r'^http://'
+    raise ArgumentError, 'need full URI' unless path =~ %r{^http://}
 
     unless @data.key? path
       raise Gem::RemoteFetcher::FetchError.new("no data for #{path}", path)
diff --git a/lib/rubygems/util/licenses.rb b/lib/rubygems/util/licenses.rb
index f23be157b922..5b8266778532 100644
--- a/lib/rubygems/util/licenses.rb
+++ b/lib/rubygems/util/licenses.rb
@@ -9,7 +9,7 @@ class Gem::Licenses
 
   # Software Package Data Exchange (SPDX) standard open-source software
   # license identifiers
-  LICENSE_IDENTIFIERS = %w(
+  LICENSE_IDENTIFIERS = %w[
     0BSD
     AAL
     ADSL
@@ -379,10 +379,10 @@ class Gem::Licenses
     xinetd
     xpp
     zlib-acknowledgement
-  ).freeze
+  ].freeze
 
   # exception identifiers
-  EXCEPTION_IDENTIFIERS = %w(
+  EXCEPTION_IDENTIFIERS = %w[
     389-exception
     Autoconf-exception-2.0
     Autoconf-exception-3.0
@@ -410,7 +410,7 @@ class Gem::Licenses
     mif-exception
     openvpn-openssl-exception
     u-boot-exception-2.0
-  ).freeze
+  ].freeze
 
   REGEXP = %r{
     \A
diff --git a/test/rubygems/test_gem.rb b/test/rubygems/test_gem.rb
index bea88b78436e..645f10b4ff22 100644
--- a/test/rubygems/test_gem.rb
+++ b/test/rubygems/test_gem.rb
@@ -42,12 +42,12 @@ def test_self_finish_resolve
 
       a1.activate
 
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       Gem.finish_resolve
 
-      assert_equal %w(a-1 b-2 c-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -66,12 +66,12 @@ def test_self_finish_resolve_wtf
 
       a1.activate
 
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal ["b (> 0)", "d (> 0)"], unresolved_names
 
       Gem.finish_resolve
 
-      assert_equal %w(a-1 b-1 c-1 d-2), loaded_spec_names
+      assert_equal %w[a-1 b-1 c-1 d-2], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -89,12 +89,12 @@ def test_self_finish_resolve_respects_loaded_specs
       a1.activate
       c1.activate
 
-      assert_equal %w(a-1 c-1), loaded_spec_names
+      assert_equal %w[a-1 c-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       Gem.finish_resolve
 
-      assert_equal %w(a-1 b-1 c-1), loaded_spec_names
+      assert_equal %w[a-1 b-1 c-1], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -299,7 +299,7 @@ def test_activate_bin_path_resolves_eagerly
     gem 'c'
     Gem.finish_resolve
 
-    assert_equal %w(a-1 b-2 c-1), loaded_spec_names
+    assert_equal %w[a-1 b-2 c-1], loaded_spec_names
   end
 
   def test_activate_bin_path_in_debug_mode
@@ -383,7 +383,7 @@ def test_activate_bin_path_selects_exact_bundler_version_if_present
 
     load Gem.activate_bin_path("bundler", "bundle", ">= 0.a")
 
-    assert_equal %w(bundler-2.0.0), loaded_spec_names
+    assert_equal %w[bundler-2.0.0], loaded_spec_names
   end
 
   def test_activate_bin_path_respects_underscore_selection_if_given
@@ -417,7 +417,7 @@ def test_activate_bin_path_respects_underscore_selection_if_given
 
     load Gem.activate_bin_path("bundler", "bundle", "= 1.17.3")
 
-    assert_equal %w(bundler-1.17.3), loaded_spec_names
+    assert_equal %w[bundler-1.17.3], loaded_spec_names
   end
 
   def test_self_bin_path_no_exec_name
@@ -716,7 +716,7 @@ def test_self_find_files
 
     discover_path = File.join 'lib', 'sff', 'discover.rb'
 
-    foo1, foo2 = %w(1 2).map do |version|
+    foo1, foo2 = %w[1 2].map do |version|
       spec = quick_gem 'sff', version do |s|
         s.files << discover_path
       end
@@ -748,7 +748,7 @@ def test_self_find_files_with_gemfile
 
     discover_path = File.join 'lib', 'sff', 'discover.rb'
 
-    foo1, _ = %w(1 2).map do |version|
+    foo1, _ = %w[1 2].map do |version|
       spec = quick_gem 'sff', version do |s|
         s.files << discover_path
       end
@@ -784,7 +784,7 @@ def test_self_find_latest_files
 
     discover_path = File.join 'lib', 'sff', 'discover.rb'
 
-    _, foo2 = %w(1 2).map do |version|
+    _, foo2 = %w[1 2].map do |version|
       spec = quick_gem 'sff', version do |s|
         s.files << discover_path
       end
@@ -1274,7 +1274,7 @@ def test_self_try_activate_missing_dep
       Gem.try_activate 'a_file'
     end
 
-    assert_match %r%Could not find 'b' %, e.message
+    assert_match %r{Could not find 'b' }, e.message
   end
 
   def test_self_try_activate_missing_prerelease
@@ -1294,7 +1294,7 @@ def test_self_try_activate_missing_prerelease
       Gem.try_activate 'a_file'
     end
 
-    assert_match %r%Could not find 'b' \(= 1.0rc1\)%, e.message
+    assert_match %r{Could not find 'b' \(= 1.0rc1\)}, e.message
   end
 
   def test_self_try_activate_missing_extensions
@@ -1399,7 +1399,7 @@ def test_self_needs
 
     activated = Gem::Specification.map { |x| x.full_name }
 
-    assert_equal %w!a-1 b-1 c-2!, activated.sort
+    assert_equal %w[a-1 b-1 c-2], activated.sort
   end
 
   def test_self_needs_picks_up_unresolved_deps
@@ -1419,7 +1419,7 @@ def test_self_needs_picks_up_unresolved_deps
         require "d#{$$}"
       end
 
-      assert_equal %w!a-1 b-1 c-2 d-1 e-1!, loaded_spec_names
+      assert_equal %w[a-1 b-1 c-2 d-1 e-1], loaded_spec_names
     end
   end
 
@@ -1611,7 +1611,7 @@ def test_auto_activation_of_specific_gemdeps_file
 
     Gem.use_gemdeps
 
-    assert_equal add_bundler_full_name(%W(a-1 b-1 c-1)), loaded_spec_names
+    assert_equal add_bundler_full_name(%W[a-1 b-1 c-1]), loaded_spec_names
   end
 
   def test_auto_activation_of_used_gemdeps_file
@@ -1765,7 +1765,7 @@ def test_use_gemdeps
 
     Gem.use_gemdeps gem_deps_file
 
-    assert_equal add_bundler_full_name(%W(a-1)), loaded_spec_names
+    assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
     refute_nil Gem.gemdeps
   end
 
@@ -1825,7 +1825,7 @@ def test_use_gemdeps_automatic
 
     Gem.use_gemdeps
 
-    assert_equal add_bundler_full_name(%W(a-1)), loaded_spec_names
+    assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
   ensure
     ENV['RUBYGEMS_GEMDEPS'] = rubygems_gemdeps
   end
@@ -1902,7 +1902,7 @@ def test_use_gemdeps_specific
 
     Gem.use_gemdeps
 
-    assert_equal add_bundler_full_name(%W(a-1)), loaded_spec_names
+    assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
   ensure
     ENV['RUBYGEMS_GEMDEPS'] = rubygems_gemdeps
   end
diff --git a/test/rubygems/test_gem_command.rb b/test/rubygems/test_gem_command.rb
index c62a68ecfd42..44ec324ab9d6 100644
--- a/test/rubygems/test_gem_command.rb
+++ b/test/rubygems/test_gem_command.rb
@@ -103,7 +103,7 @@ def test_defaults
       @cmd.invoke
     end
 
-    assert_match %r|Usage: gem doit|, @ui.output
+    assert_match %r{Usage: gem doit}, @ui.output
   end
 
   def test_invoke
@@ -189,7 +189,7 @@ def test_invoke_with_options
       @cmd.invoke '-h'
     end
 
-    assert_match %r|Usage: gem doit|, @ui.output
+    assert_match %r{Usage: gem doit}, @ui.output
   end
 
   def test_option_recognition
diff --git a/test/rubygems/test_gem_commands_cleanup_command.rb b/test/rubygems/test_gem_commands_cleanup_command.rb
index 3494085a6454..2f1591674cb9 100644
--- a/test/rubygems/test_gem_commands_cleanup_command.rb
+++ b/test/rubygems/test_gem_commands_cleanup_command.rb
@@ -220,7 +220,7 @@ def test_execute_ignore_default_gem_verbose
       @cmd.execute
     end
 
-    assert_match %r%^Skipped default gems: b-2%, @ui.output
+    assert_match %r{^Skipped default gems: b-2}, @ui.output
     assert_empty @ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_contents_command.rb b/test/rubygems/test_gem_commands_contents_command.rb
index 93ebcca5bb3d..d8f01ecbf0b6 100644
--- a/test/rubygems/test_gem_commands_contents_command.rb
+++ b/test/rubygems/test_gem_commands_contents_command.rb
@@ -27,8 +27,8 @@ def test_execute
       @cmd.execute
     end
 
-    assert_match %r|lib/foo\.rb|, @ui.output
-    assert_match %r|Rakefile|, @ui.output
+    assert_match %r{lib/foo\.rb}, @ui.output
+    assert_match %r{Rakefile}, @ui.output
     assert_equal "", @ui.error
   end
 
@@ -42,9 +42,9 @@ def test_execute_all
       @cmd.execute
     end
 
-    assert_match %r|lib/foo\.rb|, @ui.output
-    assert_match %r|lib/bar\.rb|, @ui.output
-    assert_match %r|Rakefile|, @ui.output
+    assert_match %r{lib/foo\.rb}, @ui.output
+    assert_match %r{lib/bar\.rb}, @ui.output
+    assert_match %r{Rakefile}, @ui.output
     assert_equal "", @ui.error
   end
 
@@ -57,8 +57,8 @@ def test_execute_bad_gem
       end
     end
 
-    assert_match %r|Unable to find gem 'foo' in default gem paths|, @ui.output
-    assert_match %r|Directories searched:|, @ui.output
+    assert_match %r{Unable to find gem 'foo' in default gem paths}, @ui.output
+    assert_match %r{Directories searched:}, @ui.output
     assert_equal "", @ui.error
   end
 
@@ -71,8 +71,8 @@ def test_execute_exact_match
       @cmd.execute
     end
 
-    assert_match %r|lib/foo\.rb|, @ui.output
-    assert_match %r|Rakefile|, @ui.output
+    assert_match %r{lib/foo\.rb}, @ui.output
+    assert_match %r{Rakefile}, @ui.output
     assert_equal "", @ui.error
   end
 
@@ -86,8 +86,8 @@ def test_execute_lib_only
       @cmd.execute
     end
 
-    assert_match %r|lib/foo\.rb|, @ui.output
-    refute_match %r|Rakefile|, @ui.output
+    assert_match %r{lib/foo\.rb}, @ui.output
+    refute_match %r{Rakefile}, @ui.output
 
     assert_equal "", @ui.error
   end
@@ -146,9 +146,9 @@ def test_execute_multiple
       @cmd.execute
     end
 
-    assert_match %r|lib/foo\.rb|, @ui.output
-    assert_match %r|lib/bar\.rb|, @ui.output
-    assert_match %r|Rakefile|, @ui.output
+    assert_match %r{lib/foo\.rb}, @ui.output
+    assert_match %r{lib/bar\.rb}, @ui.output
+    assert_match %r{Rakefile}, @ui.output
     assert_equal "", @ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_environment_command.rb b/test/rubygems/test_gem_commands_environment_command.rb
index 5dd0fc7521b4..12ec8dd6b2fa 100644
--- a/test/rubygems/test_gem_commands_environment_command.rb
+++ b/test/rubygems/test_gem_commands_environment_command.rb
@@ -22,29 +22,29 @@ def test_execute
       @cmd.execute
     end
 
-    assert_match %r|RUBYGEMS VERSION: (\d\.)+\d|, @ui.output
-    assert_match %r|RUBY VERSION: \d+\.\d+\.\d+ \(.*\) \[.*\]|, @ui.output
-    assert_match %r|INSTALLATION DIRECTORY: #{Regexp.escape @gemhome}|,
+    assert_match %r{RUBYGEMS VERSION: (\d\.)+\d}, @ui.output
+    assert_match %r{RUBY VERSION: \d+\.\d+\.\d+ \(.*\) \[.*\]}, @ui.output
+    assert_match %r{INSTALLATION DIRECTORY: #{Regexp.escape @gemhome}},
                  @ui.output
-    assert_match %r|RUBYGEMS PREFIX: |, @ui.output
-    assert_match %r|RUBY EXECUTABLE:.*#{RbConfig::CONFIG['ruby_install_name']}|,
+    assert_match %r{RUBYGEMS PREFIX: }, @ui.output
+    assert_match %r{RUBY EXECUTABLE:.*#{RbConfig::CONFIG['ruby_install_name']}},
                  @ui.output
-    assert_match %r|GIT EXECUTABLE: #{@cmd.send(:git_path)}|, @ui.output
-    assert_match %r|SYSTEM CONFIGURATION DIRECTORY:|, @ui.output
-    assert_match %r|EXECUTABLE DIRECTORY:|, @ui.output
-    assert_match %r|RUBYGEMS PLATFORMS:|, @ui.output
-    assert_match %r|- #{Gem::Platform.local}|, @ui.output
-    assert_match %r|GEM PATHS:|, @ui.output
-    assert_match %r|- #{Regexp.escape @gemhome}|, @ui.output
-    assert_match %r|GEM CONFIGURATION:|, @ui.output
-    assert_match %r|"gemcutter_key" => "\*\*\*\*"|, @ui.output
-    assert_match %r|:verbose => |, @ui.output
-    assert_match %r|REMOTE SOURCES:|, @ui.output
-
-    assert_match %r|- SHELL PATH:|,     @ui.output
-    assert_match %r|- /usr/local/bin$|, @ui.output
-    assert_match %r|- /usr/bin$|,       @ui.output
-    assert_match %r|- /bin$|,           @ui.output
+    assert_match %r{GIT EXECUTABLE: #{@cmd.send(:git_path)}}, @ui.output
+    assert_match %r{SYSTEM CONFIGURATION DIRECTORY:}, @ui.output
+    assert_match %r{EXECUTABLE DIRECTORY:}, @ui.output
+    assert_match %r{RUBYGEMS PLATFORMS:}, @ui.output
+    assert_match %r{- #{Gem::Platform.local}}, @ui.output
+    assert_match %r{GEM PATHS:}, @ui.output
+    assert_match %r{- #{Regexp.escape @gemhome}}, @ui.output
+    assert_match %r{GEM CONFIGURATION:}, @ui.output
+    assert_match %r{"gemcutter_key" => "\*\*\*\*"}, @ui.output
+    assert_match %r{:verbose => }, @ui.output
+    assert_match %r{REMOTE SOURCES:}, @ui.output
+
+    assert_match %r{- SHELL PATH:},     @ui.output
+    assert_match %r{- /usr/local/bin$}, @ui.output
+    assert_match %r{- /usr/bin$},       @ui.output
+    assert_match %r{- /bin$},           @ui.output
 
     assert_empty @ui.error
 
diff --git a/test/rubygems/test_gem_commands_info_command.rb b/test/rubygems/test_gem_commands_info_command.rb
index 373fccceeee7..0b7458f7c595 100644
--- a/test/rubygems/test_gem_commands_info_command.rb
+++ b/test/rubygems/test_gem_commands_info_command.rb
@@ -33,12 +33,12 @@ def test_execute
       @cmd.execute
     end
 
-    assert_match %r%#{@gem.name} \(#{@gem.version}\)\n%, @ui.output
-    assert_match %r%Authors: #{@gem.authors.join(', ')}\n%, @ui.output
-    assert_match %r%Homepage: #{@gem.homepage}\n%, @ui.output
-    assert_match %r%License: #{@gem.license}\n%, @ui.output
-    assert_match %r%Installed at: #{@gem.base_dir}\n%, @ui.output
-    assert_match %r%#{@gem.summary}\n%, @ui.output
+    assert_match %r{#{@gem.name} \(#{@gem.version}\)\n}, @ui.output
+    assert_match %r{Authors: #{@gem.authors.join(', ')}\n}, @ui.output
+    assert_match %r{Homepage: #{@gem.homepage}\n}, @ui.output
+    assert_match %r{License: #{@gem.license}\n}, @ui.output
+    assert_match %r{Installed at: #{@gem.base_dir}\n}, @ui.output
+    assert_match %r{#{@gem.summary}\n}, @ui.output
     assert_match "", @ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_install_command.rb b/test/rubygems/test_gem_commands_install_command.rb
index a233377c4a07..e86e9e24d548 100644
--- a/test/rubygems/test_gem_commands_install_command.rb
+++ b/test/rubygems/test_gem_commands_install_command.rb
@@ -337,7 +337,7 @@ def test_execute_bad_source
     errs = @ui.error.split("\n")
 
     assert_match(/ould not find a valid gem 'nonexistent'/, errs.shift)
-    assert_match(%r!Unable to download data from http://not-there.nothing!, errs.shift)
+    assert_match(%r{Unable to download data from http://not-there.nothing}, errs.shift)
   end
 
   def test_execute_nonexistent_hint_disabled
@@ -582,7 +582,7 @@ def test_execute_saves_build_args
       fetcher.gem 'a', 2
     end
 
-    args = %w!--with-awesome=true --more-awesome=yes!
+    args = %w[--with-awesome=true --more-awesome=yes]
 
     Gem::Command.build_args = args
 
@@ -886,7 +886,7 @@ def test_parses_requirement_from_gemname
     end
 
     assert_equal 2, e.exit_code
-    assert_match %r!Could not find a valid gem 'a' \(= 10.0\)!, @ui.error
+    assert_match %r{Could not find a valid gem 'a' \(= 10.0\)}, @ui.error
   end
 
   def test_show_errors_on_failure
diff --git a/test/rubygems/test_gem_commands_mirror.rb b/test/rubygems/test_gem_commands_mirror.rb
index 07ec9f3d0c7d..9d3d7169f1d7 100644
--- a/test/rubygems/test_gem_commands_mirror.rb
+++ b/test/rubygems/test_gem_commands_mirror.rb
@@ -15,7 +15,7 @@ def test_execute
       @cmd.execute
     end
 
-    assert_match %r%Install the rubygems-mirror%i, @ui.error
+    assert_match %r{Install the rubygems-mirror}i, @ui.error
   end
 
 end
diff --git a/test/rubygems/test_gem_commands_open_command.rb b/test/rubygems/test_gem_commands_open_command.rb
index e73a1382048d..33836f7498d9 100644
--- a/test/rubygems/test_gem_commands_open_command.rb
+++ b/test/rubygems/test_gem_commands_open_command.rb
@@ -51,7 +51,7 @@ def test_wrong_version
       end
     end
 
-    assert_match %r|Unable to find gem 'foo'|, @ui.output
+    assert_match %r{Unable to find gem 'foo'}, @ui.output
     assert_equal "", @ui.error
   end
 
@@ -64,7 +64,7 @@ def test_execute_bad_gem
       end
     end
 
-    assert_match %r|Unable to find gem 'foo'|, @ui.output
+    assert_match %r{Unable to find gem 'foo'}, @ui.output
     assert_equal "", @ui.error
   end
 
@@ -93,7 +93,7 @@ def test_default_gem
       end
     end
 
-    assert_match %r|'foo' is a default gem and can't be opened\.| , @ui.output
+    assert_match %r{'foo' is a default gem and can't be opened\.} , @ui.output
     assert_equal "", @ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_owner_command.rb b/test/rubygems/test_gem_commands_owner_command.rb
index 799d631f8a91..35424629fec8 100644
--- a/test/rubygems/test_gem_commands_owner_command.rb
+++ b/test/rubygems/test_gem_commands_owner_command.rb
@@ -119,7 +119,7 @@ def test_show_owners_key
     end
     Gem.configuration.load_api_keys
 
-    @cmd.handle_options %w(-k other)
+    @cmd.handle_options %w[-k other]
     @cmd.show_owners('freewill')
 
     assert_equal '701229f217cdf23b1344c7b4b54ca97', @stub_fetcher.last_request['Authorization']
@@ -177,7 +177,7 @@ def test_add_owners_key
     end
     Gem.configuration.load_api_keys
 
-    @cmd.handle_options %w(-k other)
+    @cmd.handle_options %w[-k other]
     @cmd.add_owners('freewill', ['user-new1@example.com'])
 
     assert_equal '701229f217cdf23b1344c7b4b54ca97', @stub_fetcher.last_request['Authorization']
@@ -217,7 +217,7 @@ def test_remove_owners_key
     end
     Gem.configuration.load_api_keys
 
-    @cmd.handle_options %w(-k other)
+    @cmd.handle_options %w[-k other]
     @cmd.remove_owners('freewill', ['user-remove1@example.com'])
 
     assert_equal '701229f217cdf23b1344c7b4b54ca97', @stub_fetcher.last_request['Authorization']
diff --git a/test/rubygems/test_gem_commands_pristine_command.rb b/test/rubygems/test_gem_commands_pristine_command.rb
index 7f8837af1850..11344bb6b6e6 100644
--- a/test/rubygems/test_gem_commands_pristine_command.rb
+++ b/test/rubygems/test_gem_commands_pristine_command.rb
@@ -160,9 +160,9 @@ def test_execute_env_shebang
 
     ruby_exec = sprintf Gem.default_exec_format, 'ruby'
 
-    bin_env = win_platform? ? "" : %w(/usr/bin/env /bin/env).find {|f| File.executable?(f) } + " "
+    bin_env = win_platform? ? "" : %w[/usr/bin/env /bin/env].find {|f| File.executable?(f) } + " "
 
-    assert_match %r%\A#!\s*#{bin_env}#{ruby_exec}%, File.read(gem_exec)
+    assert_match %r{\A#!\s*#{bin_env}#{ruby_exec}}, File.read(gem_exec)
   end
 
   def test_execute_extensions_explicit
@@ -246,7 +246,7 @@ def test_execute_with_extension_with_build_args
       RUBY
     end
 
-    build_args = %w!--with-awesome=true --sweet!
+    build_args = %w[--with-awesome=true --sweet]
 
     install_gem a, :build_args => build_args
 
@@ -455,7 +455,7 @@ def test_execute_no_gem
       end
     end
 
-    assert_match %r|at least one gem name|, e.message
+    assert_match %r{at least one gem name}, e.message
   end
 
   def test_execute_only_executables
diff --git a/test/rubygems/test_gem_commands_push_command.rb b/test/rubygems/test_gem_commands_push_command.rb
index f666c6d4371d..ddb287388d57 100644
--- a/test/rubygems/test_gem_commands_push_command.rb
+++ b/test/rubygems/test_gem_commands_push_command.rb
@@ -246,7 +246,7 @@ def test_sending_gem_to_disallowed_default_host
       spec.metadata['allowed_push_host'] = "https://privategemserver.example"
     end
 
-    response = %{ERROR:  "#{@host}" is not allowed by the gemspec, which only allows "https://privategemserver.example"}
+    response = %(ERROR:  "#{@host}" is not allowed by the gemspec, which only allows "https://privategemserver.example")
 
     assert_raises Gem::MockGemUi::TermError do
       send_battery
@@ -355,7 +355,7 @@ def test_sending_gem_key
     end
     Gem.configuration.load_api_keys
 
-    @cmd.handle_options %w(-k other)
+    @cmd.handle_options %w[-k other]
     @cmd.instance_variable_set :@host, @host
     @cmd.send_gem(@path)
 
diff --git a/test/rubygems/test_gem_commands_query_command.rb b/test/rubygems/test_gem_commands_query_command.rb
index a25effb54825..23b9bf5f15db 100644
--- a/test/rubygems/test_gem_commands_query_command.rb
+++ b/test/rubygems/test_gem_commands_query_command.rb
@@ -580,8 +580,8 @@ def test_execute_multiple_args
       @cmd.execute
     end
 
-    assert_match %r%^a %, @stub_ui.output
-    assert_match %r%^pl %, @stub_ui.output
+    assert_match %r{^a }, @stub_ui.output
+    assert_match %r{^pl }, @stub_ui.output
     assert_equal '', @stub_ui.error
   end
 
@@ -593,8 +593,8 @@ def test_show_gems
       @cmd.send :show_gems, /a/i
     end
 
-    assert_match %r%^a %,  @stub_ui.output
-    refute_match %r%^pl %, @stub_ui.output
+    assert_match %r{^a },  @stub_ui.output
+    refute_match %r{^pl }, @stub_ui.output
     assert_empty @stub_ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_setup_command.rb b/test/rubygems/test_gem_commands_setup_command.rb
index f92b3dc73918..76792603d21d 100644
--- a/test/rubygems/test_gem_commands_setup_command.rb
+++ b/test/rubygems/test_gem_commands_setup_command.rb
@@ -196,10 +196,10 @@ def test_env_shebang_flag
 
     ruby_exec = sprintf Gem.default_exec_format, 'ruby'
 
-    bin_env = win_platform? ? "" : %w(/usr/bin/env /bin/env).find {|f| File.executable?(f) } + " "
-    assert_match %r%\A#!\s*#{bin_env}#{ruby_exec}%, File.read(default_gem_bin_path)
-    assert_match %r%\A#!\s*#{bin_env}#{ruby_exec}%, File.read(default_bundle_bin_path)
-    assert_match %r%\A#!\s*#{bin_env}#{ruby_exec}%, File.read(gem_bin_path)
+    bin_env = win_platform? ? "" : %w[/usr/bin/env /bin/env].find {|f| File.executable?(f) } + " "
+    assert_match %r{\A#!\s*#{bin_env}#{ruby_exec}}, File.read(default_gem_bin_path)
+    assert_match %r{\A#!\s*#{bin_env}#{ruby_exec}}, File.read(default_bundle_bin_path)
+    assert_match %r{\A#!\s*#{bin_env}#{ruby_exec}}, File.read(gem_bin_path)
   end
 
   def test_pem_files_in
diff --git a/test/rubygems/test_gem_commands_specification_command.rb b/test/rubygems/test_gem_commands_specification_command.rb
index f56aa9777a98..cb66868568ba 100644
--- a/test/rubygems/test_gem_commands_specification_command.rb
+++ b/test/rubygems/test_gem_commands_specification_command.rb
@@ -21,8 +21,8 @@ def test_execute
       @cmd.execute
     end
 
-    assert_match %r|Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
+    assert_match %r{Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
     assert_equal '', @ui.error
   end
 
@@ -37,10 +37,10 @@ def test_execute_all
       @cmd.execute
     end
 
-    assert_match %r|Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
-    assert_match %r|version: 0.0.1|, @ui.output
-    assert_match %r|version: 0.0.2|, @ui.output
+    assert_match %r{Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
+    assert_match %r{version: 0.0.1}, @ui.output
+    assert_match %r{version: 0.0.2}, @ui.output
     assert_equal '', @ui.error
   end
 
@@ -99,8 +99,8 @@ def test_execute_exact_match
       @cmd.execute
     end
 
-    assert_match %r|Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
+    assert_match %r{Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
     assert_equal '', @ui.error
   end
 
@@ -131,8 +131,8 @@ def test_execute_file
       @cmd.execute
     end
 
-    assert_match %r|Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
+    assert_match %r{Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
     assert_equal '', @ui.error
   end
 
@@ -164,8 +164,8 @@ def test_execute_remote
       @cmd.execute
     end
 
-    assert_match %r|\A--- !ruby/object:Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
+    assert_match %r{\A--- !ruby/object:Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
   end
 
   def test_execute_remote_with_version
@@ -200,8 +200,8 @@ def test_execute_remote_without_prerelease
       @cmd.execute
     end
 
-    assert_match %r|\A--- !ruby/object:Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
+    assert_match %r{\A--- !ruby/object:Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
 
     spec = YAML.load @ui.output
 
@@ -222,8 +222,8 @@ def test_execute_remote_with_prerelease
       @cmd.execute
     end
 
-    assert_match %r|\A--- !ruby/object:Gem::Specification|, @ui.output
-    assert_match %r|name: foo|, @ui.output
+    assert_match %r{\A--- !ruby/object:Gem::Specification}, @ui.output
+    assert_match %r{name: foo}, @ui.output
 
     spec = YAML.load @ui.output
 
@@ -242,8 +242,8 @@ def test_execute_ruby
       @cmd.execute
     end
 
-    assert_match %r|Gem::Specification.new|, @ui.output
-    assert_match %r|s.name = "foo"|, @ui.output
+    assert_match %r{Gem::Specification.new}, @ui.output
+    assert_match %r{s.name = "foo"}, @ui.output
     assert_equal '', @ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_uninstall_command.rb b/test/rubygems/test_gem_commands_uninstall_command.rb
index 927a2412036d..1f71b4ce1d6a 100644
--- a/test/rubygems/test_gem_commands_uninstall_command.rb
+++ b/test/rubygems/test_gem_commands_uninstall_command.rb
@@ -486,7 +486,7 @@ def test_execute_with_gem_uninstall_error
     end
 
     assert_empty @ui.output
-    assert_match %r!Error: unable to successfully uninstall '#{@spec.name}'!, @ui.error
+    assert_match %r{Error: unable to successfully uninstall '#{@spec.name}'}, @ui.error
   end
 
   private
diff --git a/test/rubygems/test_gem_commands_which_command.rb b/test/rubygems/test_gem_commands_which_command.rb
index 0d63bb9b374f..3d66c0150cdc 100644
--- a/test/rubygems/test_gem_commands_which_command.rb
+++ b/test/rubygems/test_gem_commands_which_command.rb
@@ -33,7 +33,7 @@ def test_execute_directory
     end
 
     assert_equal '', @ui.output
-    assert_match %r%Can.t find Ruby library file or shared library directory\n%,
+    assert_match %r{Can.t find Ruby library file or shared library directory\n},
                  @ui.error
   end
 
@@ -51,7 +51,7 @@ def test_execute_one_missing
     end
 
     assert_equal "#{@foo_bar.full_gem_path}/lib/foo_bar.rb\n", @ui.output
-    assert_match %r%Can.t find Ruby library file or shared library missinglib\n%,
+    assert_match %r{Can.t find Ruby library file or shared library missinglib\n},
                  @ui.error
   end
 
@@ -65,7 +65,7 @@ def test_execute_missing
     end
 
     assert_equal '', @ui.output
-    assert_match %r%Can.t find Ruby library file or shared library missinglib\n%,
+    assert_match %r{Can.t find Ruby library file or shared library missinglib\n},
                  @ui.error
   end
 
diff --git a/test/rubygems/test_gem_commands_yank_command.rb b/test/rubygems/test_gem_commands_yank_command.rb
index 1aafc92bfb8c..9f337ec67e4a 100644
--- a/test/rubygems/test_gem_commands_yank_command.rb
+++ b/test/rubygems/test_gem_commands_yank_command.rb
@@ -46,8 +46,8 @@ def test_execute
       @cmd.execute
     end
 
-    assert_match %r%Yanking gem from http://example%, @ui.output
-    assert_match %r%Successfully yanked%,      @ui.output
+    assert_match %r{Yanking gem from http://example}, @ui.output
+    assert_match %r{Successfully yanked},      @ui.output
 
     platform = Gem.platforms[1]
     body = @fetcher.last_request.body.split('&').sort
@@ -77,8 +77,8 @@ def test_execute_with_otp_success
 
     assert_match 'You have enabled multi-factor authentication. Please enter OTP code.', @otp_ui.output
     assert_match 'Code: ', @otp_ui.output
-    assert_match %r%Yanking gem from http://example%, @otp_ui.output
-    assert_match %r%Successfully yanked%,      @otp_ui.output
+    assert_match %r{Yanking gem from http://example}, @otp_ui.output
+    assert_match %r{Successfully yanked},      @otp_ui.output
     assert_equal '111111', @fetcher.last_request['OTP']
   end
 
@@ -132,8 +132,8 @@ def test_execute_host
       @cmd.execute
     end
 
-    assert_match %r%Yanking gem from https://other.example%, @ui.output
-    assert_match %r%Successfully yanked%,      @ui.output
+    assert_match %r{Yanking gem from https://other.example}, @ui.output
+    assert_match %r{Successfully yanked},      @ui.output
 
     body = @fetcher.last_request.body.split('&').sort
     assert_equal %w[gem_name=a version=1.0], body
diff --git a/test/rubygems/test_gem_dependency_installer.rb b/test/rubygems/test_gem_dependency_installer.rb
index 048b9fed1d27..3e3a8677b1f1 100644
--- a/test/rubygems/test_gem_dependency_installer.rb
+++ b/test/rubygems/test_gem_dependency_installer.rb
@@ -559,7 +559,7 @@ def test_install_env_shebang
 
     env = "/\\S+/env" unless Gem.win_platform?
 
-    assert_match %r|\A#!#{env} #{RbConfig::CONFIG['ruby_install_name']}\n|,
+    assert_match %r{\A#!#{env} #{RbConfig::CONFIG['ruby_install_name']}\n},
                  File.read(File.join(@gemhome, 'bin', 'a_bin'))
   end
 
@@ -875,7 +875,7 @@ def test_install_no_wrappers
       inst = Gem::DependencyInstaller.new :wrappers => false, :format_executable => false
       inst.install 'a'
 
-      refute_match(%r|This file was generated by RubyGems.|,
+      refute_match(%r{This file was generated by RubyGems.},
                    File.read(File.join(@gemhome, 'bin', 'a_bin')))
     end
   end
diff --git a/test/rubygems/test_gem_dependency_resolution_error.rb b/test/rubygems/test_gem_dependency_resolution_error.rb
index cf4663650e0b..57e6191d87bb 100644
--- a/test/rubygems/test_gem_dependency_resolution_error.rb
+++ b/test/rubygems/test_gem_dependency_resolution_error.rb
@@ -21,7 +21,7 @@ def setup
   end
 
   def test_message
-    assert_match %r%^conflicting dependencies a \(= 1\) and a \(= 2\)$%,
+    assert_match %r{^conflicting dependencies a \(= 1\) and a \(= 2\)$},
                  @error.message
   end
 
diff --git a/test/rubygems/test_gem_ext_builder.rb b/test/rubygems/test_gem_ext_builder.rb
index 7091acdca068..1a7587af7e0a 100644
--- a/test/rubygems/test_gem_ext_builder.rb
+++ b/test/rubygems/test_gem_ext_builder.rb
@@ -50,14 +50,14 @@ def test_class_make
 
     results = results.join "\n"
 
-    assert_match %r%"DESTDIR=#{ENV['DESTDIR']}" clean$%,   results
-    assert_match %r%"DESTDIR=#{ENV['DESTDIR']}"$%,         results
-    assert_match %r%"DESTDIR=#{ENV['DESTDIR']}" install$%, results
+    assert_match %r{"DESTDIR=#{ENV['DESTDIR']}" clean$},   results
+    assert_match %r{"DESTDIR=#{ENV['DESTDIR']}"$},         results
+    assert_match %r{"DESTDIR=#{ENV['DESTDIR']}" install$}, results
 
     if /nmake/ !~ results
-      assert_match %r%^clean: destination$%,   results
-      assert_match %r%^all: destination$%,     results
-      assert_match %r%^install: destination$%, results
+      assert_match %r{^clean: destination$},   results
+      assert_match %r{^all: destination$},     results
+      assert_match %r{^install: destination$}, results
     end
   end
 
@@ -81,9 +81,9 @@ def test_class_make_no_clean
 
     results = results.join "\n"
 
-    assert_match %r%"DESTDIR=#{ENV['DESTDIR']}" clean$%,   results
-    assert_match %r%"DESTDIR=#{ENV['DESTDIR']}"$%,         results
-    assert_match %r%"DESTDIR=#{ENV['DESTDIR']}" install$%, results
+    assert_match %r{"DESTDIR=#{ENV['DESTDIR']}" clean$},   results
+    assert_match %r{"DESTDIR=#{ENV['DESTDIR']}"$},         results
+    assert_match %r{"DESTDIR=#{ENV['DESTDIR']}" install$}, results
   end
 
   def test_build_extensions
@@ -234,9 +234,9 @@ def test_build_extensions_extconf_bad
 
     gem_make_out = File.join @spec.extension_dir, 'gem_make.out'
 
-    assert_match %r%#{Regexp.escape Gem.ruby}.* extconf\.rb%,
+    assert_match %r{#{Regexp.escape Gem.ruby}.* extconf\.rb},
                  File.read(gem_make_out)
-    assert_match %r%: No such file%,
+    assert_match %r{: No such file},
                  File.read(gem_make_out)
 
     refute_path_exists @spec.gem_build_complete_path
@@ -244,7 +244,7 @@ def test_build_extensions_extconf_bad
     skip "Gem.ruby is not the name of the binary being run in the end" \
       unless File.read(gem_make_out).include? "#{Gem.ruby}:"
 
-    assert_match %r%#{Regexp.escape Gem.ruby}: No such file%,
+    assert_match %r{#{Regexp.escape Gem.ruby}: No such file},
                  File.read(gem_make_out)
 
     assert_equal cwd, Dir.pwd
diff --git a/test/rubygems/test_gem_ext_cmake_builder.rb b/test/rubygems/test_gem_ext_cmake_builder.rb
index 757266cae2bb..05673e1b6dce 100644
--- a/test/rubygems/test_gem_ext_cmake_builder.rb
+++ b/test/rubygems/test_gem_ext_cmake_builder.rb
@@ -41,11 +41,11 @@ def test_self_build
     output = output.join "\n"
 
     assert_match \
-      %r%^cmake \. -DCMAKE_INSTALL_PREFIX=#{Regexp.escape @dest_path}%, output
-    assert_match %r%#{Regexp.escape @ext}%, output
+      %r{^cmake \. -DCMAKE_INSTALL_PREFIX=#{Regexp.escape @dest_path}}, output
+    assert_match %r{#{Regexp.escape @ext}}, output
     assert_contains_make_command '', output
     assert_contains_make_command 'install', output
-    assert_match %r%test\.txt%, output
+    assert_match %r{test\.txt}, output
   end
 
   def test_self_build_fail
@@ -64,8 +64,8 @@ def test_self_build_fail
 
     assert_match 'cmake failed', error.message
 
-    assert_match %r%^#{sh_prefix_cmake}#{Regexp.escape @dest_path}%, output
-    assert_match %r%#{shell_error_msg}%, output
+    assert_match %r{^#{sh_prefix_cmake}#{Regexp.escape @dest_path}}, output
+    assert_match %r{#{shell_error_msg}}, output
   end
 
   def test_self_build_has_makefile
diff --git a/test/rubygems/test_gem_ext_configure_builder.rb b/test/rubygems/test_gem_ext_configure_builder.rb
index 967458170b32..ac8a861e1744 100644
--- a/test/rubygems/test_gem_ext_configure_builder.rb
+++ b/test/rubygems/test_gem_ext_configure_builder.rb
@@ -61,7 +61,7 @@ def test_self_build_fail
 
     assert_match(/^current directory:/, output.shift)
     assert_equal "#{sh_prefix_configure}#{@dest_path}", output.shift
-    assert_match %r(#{shell_error_msg}), output.shift
+    assert_match %r{#{shell_error_msg}}, output.shift
     assert_equal true, output.empty?
   end
 
diff --git a/test/rubygems/test_gem_ext_rake_builder.rb b/test/rubygems/test_gem_ext_rake_builder.rb
index c86ff0764900..1b5993c7055c 100644
--- a/test/rubygems/test_gem_ext_rake_builder.rb
+++ b/test/rubygems/test_gem_ext_rake_builder.rb
@@ -25,9 +25,9 @@ def test_class_build
 
       output = output.join "\n"
 
-      refute_match %r%^rake failed:%, output
-      assert_match %r%^#{Regexp.escape @@ruby} mkrf_conf\.rb%, output
-      assert_match %r%^#{Regexp.escape rake} RUBYARCHDIR\\=#{Regexp.escape @dest_path} RUBYLIBDIR\\=#{Regexp.escape @dest_path}%, output
+      refute_match %r{^rake failed:}, output
+      assert_match %r{^#{Regexp.escape @@ruby} mkrf_conf\.rb}, output
+      assert_match %r{^#{Regexp.escape rake} RUBYARCHDIR\\=#{Regexp.escape @dest_path} RUBYLIBDIR\\=#{Regexp.escape @dest_path}}, output
     end
   end
 
@@ -46,9 +46,9 @@ def test_class_build_with_args
 
       output = output.join "\n"
 
-      refute_match %r%^rake failed:%, output
-      assert_match %r%^#{Regexp.escape @@ruby} mkrf_conf\.rb%, output
-      assert_match %r%^#{Regexp.escape rake} RUBYARCHDIR\\=#{Regexp.escape @dest_path} RUBYLIBDIR\\=#{Regexp.escape @dest_path}%, output
+      refute_match %r{^rake failed:}, output
+      assert_match %r{^#{Regexp.escape @@ruby} mkrf_conf\.rb}, output
+      assert_match %r{^#{Regexp.escape rake} RUBYARCHDIR\\=#{Regexp.escape @dest_path} RUBYLIBDIR\\=#{Regexp.escape @dest_path}}, output
     end
   end
 
@@ -62,8 +62,8 @@ def test_class_build_no_mkrf_passes_args
 
       output = output.join "\n"
 
-      refute_match %r%^rake failed:%, output
-      assert_match %r%^#{Regexp.escape rake} RUBYARCHDIR\\=#{Regexp.escape @dest_path} RUBYLIBDIR\\=#{Regexp.escape @dest_path} test1 test2%, output
+      refute_match %r{^rake failed:}, output
+      assert_match %r{^#{Regexp.escape rake} RUBYARCHDIR\\=#{Regexp.escape @dest_path} RUBYLIBDIR\\=#{Regexp.escape @dest_path} test1 test2}, output
     end
   end
 
@@ -78,7 +78,7 @@ def test_class_build_fail
         end
       end
 
-      assert_match %r%^rake failed%, error.message
+      assert_match %r{^rake failed}, error.message
     end
   end
 
diff --git a/test/rubygems/test_gem_indexer.rb b/test/rubygems/test_gem_indexer.rb
index fdef33e46425..d5f28b8814c0 100644
--- a/test/rubygems/test_gem_indexer.rb
+++ b/test/rubygems/test_gem_indexer.rb
@@ -189,15 +189,15 @@ def test_generate_index_ui
       @indexer.generate_index
     end
 
-    assert_match %r%^\.\.\.\.\.\.\.\.\.\.\.\.$%, @ui.output
-    assert_match %r%^Generating Marshal quick index gemspecs for 12 gems$%,
+    assert_match %r{^\.\.\.\.\.\.\.\.\.\.\.\.$}, @ui.output
+    assert_match %r{^Generating Marshal quick index gemspecs for 12 gems$},
                  @ui.output
-    assert_match %r%^Complete$%, @ui.output
-    assert_match %r%^Generating specs index$%, @ui.output
-    assert_match %r%^Generating latest specs index$%, @ui.output
-    assert_match %r%^Generating prerelease specs index$%, @ui.output
-    assert_match %r%^Complete$%, @ui.output
-    assert_match %r%^Compressing indices$%, @ui.output
+    assert_match %r{^Complete$}, @ui.output
+    assert_match %r{^Generating specs index$}, @ui.output
+    assert_match %r{^Generating latest specs index$}, @ui.output
+    assert_match %r{^Generating prerelease specs index$}, @ui.output
+    assert_match %r{^Complete$}, @ui.output
+    assert_match %r{^Compressing indices$}, @ui.output
 
     assert_equal '', @ui.error
   end
diff --git a/test/rubygems/test_gem_installer.rb b/test/rubygems/test_gem_installer.rb
index 4d0c4a1800b1..b1eb2ae670f9 100644
--- a/test/rubygems/test_gem_installer.rb
+++ b/test/rubygems/test_gem_installer.rb
@@ -98,7 +98,7 @@ def test_check_executable_overwrite
     assert_path_exists installed_exec
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end
 
   def test_check_executable_overwrite_default_bin_dir
@@ -114,7 +114,7 @@ def test_check_executable_overwrite_default_bin_dir
         end
 
         conflicted = File.join @gemhome, 'bin', 'executable'
-        assert_match %r%\A"executable" from a conflicts with (?:#{Regexp.quote(conflicted)}|installed executable from conflict)\z%,
+        assert_match %r{\A"executable" from a conflicts with (?:#{Regexp.quote(conflicted)}|installed executable from conflict)\z},
                      e.message
       end
     end
@@ -156,7 +156,7 @@ def test_check_executable_overwrite_format_executable
     assert_path_exists installed_exec
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   ensure
     Gem::Installer.exec_format = nil
   end
@@ -191,7 +191,7 @@ def test_check_executable_overwrite_other_gem_force
     assert_path_exists installed_exec
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end
 
   def test_check_executable_overwrite_other_non_gem
@@ -206,7 +206,7 @@ def test_check_executable_overwrite_other_non_gem
     assert_path_exists installed_exec
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end unless Gem.win_platform?
 
   def test_check_that_user_bin_dir_is_in_path
@@ -342,7 +342,7 @@ def test_generate_bin_bindir
     assert_equal mask, File.stat(installed_exec).mode unless win_platform?
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end
 
   def test_generate_bin_bindir_with_user_install_warning
@@ -385,7 +385,7 @@ def test_generate_bin_script
     assert_equal mask, File.stat(installed_exec).mode unless win_platform?
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end
 
   def test_generate_bin_script_format
@@ -444,7 +444,7 @@ def test_generate_bin_script_install_dir
     assert_equal mask, File.stat(installed_exec).mode unless win_platform?
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end
 
   def test_generate_bin_script_no_execs
@@ -501,7 +501,7 @@ def test_generate_bin_script_no_shebang
     assert_equal mask, File.stat(installed_exec).mode unless win_platform?
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
     # HACK some gems don't have #! in their executables, restore 2008/06
     #assert_no_match %r|generated by RubyGems|, wrapper
   end
@@ -527,9 +527,9 @@ def test_generate_bin_script_wrappers
     assert_path_exists installed_exec
     assert_equal mask, File.stat(installed_exec).mode unless win_platform?
 
-    assert_match %r|generated by RubyGems|, File.read(installed_exec)
+    assert_match %r{generated by RubyGems}, File.read(installed_exec)
 
-    refute_match %r|generated by RubyGems|, File.read(real_exec),
+    refute_match %r{generated by RubyGems}, File.read(real_exec),
                  'real executable overwritten'
   end
 
@@ -1251,7 +1251,7 @@ def test_install_with_message
       installer.install
     end
 
-    assert_match %r|I am a shiny gem!|, @ui.output
+    assert_match %r{I am a shiny gem!}, @ui.output
   end
 
   def test_install_with_skipped_message
@@ -1265,7 +1265,7 @@ def test_install_with_skipped_message
       installer.install
     end
 
-    refute_match %r|I am a shiny gem!|, @ui.output
+    refute_match %r{I am a shiny gem!}, @ui.output
   end
 
   def test_install_extension_dir
@@ -1469,7 +1469,7 @@ def test_install_extension_flat
     end
 
     # empty depend file for no auto dependencies
-    @spec.files += %W"depend #{@spec.name}.c".each do |file|
+    @spec.files += %W[depend #{@spec.name}.c].each do |file|
       write_file File.join(@tempdir, file)
     end
 
@@ -1909,7 +1909,7 @@ def get_bin_env
     if win_platform?
       ""
     else
-      %w(/usr/bin/env /bin/env).find {|f| File.executable?(f) }
+      %w[/usr/bin/env /bin/env].find {|f| File.executable?(f) }
     end
   end
 
@@ -2057,7 +2057,7 @@ def test_write_spec_writes_cached_spec
   def test_dir
     installer = setup_base_installer
 
-    assert_match %r!/gemhome/gems/a-2$!, installer.dir
+    assert_match %r{/gemhome/gems/a-2$}, installer.dir
   end
 
   def test_default_gem_loaded_from
@@ -2097,7 +2097,7 @@ def test_default_gem_without_wrappers
     assert_path_exists installed_exec
 
     wrapper = File.read installed_exec
-    refute_match %r|generated by RubyGems|, wrapper
+    refute_match %r{generated by RubyGems}, wrapper
   end
 
   def test_default_gem_with_wrappers
@@ -2117,7 +2117,7 @@ def test_default_gem_with_wrappers
     assert_path_exists installed_exec
 
     wrapper = File.read installed_exec
-    assert_match %r|generated by RubyGems|, wrapper
+    assert_match %r{generated by RubyGems}, wrapper
   end
 
   def test_default_gem_with_exe_as_bindir
diff --git a/test/rubygems/test_gem_package.rb b/test/rubygems/test_gem_package.rb
index 64ceda39b235..eb203916c5db 100644
--- a/test/rubygems/test_gem_package.rb
+++ b/test/rubygems/test_gem_package.rb
@@ -929,8 +929,8 @@ def test_verify_nonexistent
       package.verify
     end
 
-    assert_match %r%^No such file or directory%, e.message
-    assert_match %r%nonexistent.gem$%,           e.message
+    assert_match %r{^No such file or directory}, e.message
+    assert_match %r{nonexistent.gem$},           e.message
   end
 
   def test_verify_duplicate_file
diff --git a/test/rubygems/test_gem_remote_fetcher.rb b/test/rubygems/test_gem_remote_fetcher.rb
index 4df918094481..c9779aed5d76 100644
--- a/test/rubygems/test_gem_remote_fetcher.rb
+++ b/test/rubygems/test_gem_remote_fetcher.rb
@@ -499,7 +499,7 @@ def fetcher.fetch_http(uri, mtime = nil, head = nil)
       fetcher.fetch_path url
     end
 
-    assert_match %r|ECONNREFUSED:.*connect\(2\) \(#{Regexp.escape url}\)\z|,
+    assert_match %r{ECONNREFUSED:.*connect\(2\) \(#{Regexp.escape url}\)\z},
                  e.message
     assert_equal url, e.uri
   end
diff --git a/test/rubygems/test_gem_request.rb b/test/rubygems/test_gem_request.rb
index 2a756eaad793..126bb1364333 100644
--- a/test/rubygems/test_gem_request.rb
+++ b/test/rubygems/test_gem_request.rb
@@ -251,11 +251,11 @@ def test_fetch_unmodified
   def test_user_agent
     ua = make_request(@uri, nil, nil, nil).user_agent
 
-    assert_match %r%^RubyGems/\S+ \S+ Ruby/\S+ \(.*?\)%,          ua
-    assert_match %r%RubyGems/#{Regexp.escape Gem::VERSION}%,      ua
-    assert_match %r% #{Regexp.escape Gem::Platform.local.to_s} %, ua
-    assert_match %r%Ruby/#{Regexp.escape RUBY_VERSION}%,          ua
-    assert_match %r%\(#{Regexp.escape RUBY_RELEASE_DATE} %,       ua
+    assert_match %r{^RubyGems/\S+ \S+ Ruby/\S+ \(.*?\)},          ua
+    assert_match %r{RubyGems/#{Regexp.escape Gem::VERSION}},      ua
+    assert_match %r{ #{Regexp.escape Gem::Platform.local.to_s} }, ua
+    assert_match %r{Ruby/#{Regexp.escape RUBY_VERSION}},          ua
+    assert_match %r{\(#{Regexp.escape RUBY_RELEASE_DATE} },       ua
   end
 
   def test_user_agent_engine
@@ -266,7 +266,7 @@ def test_user_agent_engine
 
     ua = make_request(@uri, nil, nil, nil).user_agent
 
-    assert_match %r%\) vroom%, ua
+    assert_match %r{\) vroom}, ua
   ensure
     util_restore_version
   end
@@ -279,7 +279,7 @@ def test_user_agent_engine_ruby
 
     ua = make_request(@uri, nil, nil, nil).user_agent
 
-    assert_match %r%\)%, ua
+    assert_match %r{\)}, ua
   ensure
     util_restore_version
   end
@@ -292,7 +292,7 @@ def test_user_agent_patchlevel
 
     ua = make_request(@uri, nil, nil, nil).user_agent
 
-    assert_match %r% patchlevel 5\)%, ua
+    assert_match %r{ patchlevel 5\)}, ua
   ensure
     util_restore_version
   end
@@ -307,8 +307,8 @@ def test_user_agent_revision
 
     ua = make_request(@uri, nil, nil, nil).user_agent
 
-    assert_match %r% revision 6\)%, ua
-    assert_match %r%Ruby/#{Regexp.escape RUBY_VERSION}dev%, ua
+    assert_match %r{ revision 6\)}, ua
+    assert_match %r{Ruby/#{Regexp.escape RUBY_VERSION}dev}, ua
   ensure
     util_restore_version
   end
@@ -322,7 +322,7 @@ def test_user_agent_revision_missing
 
     ua = make_request(@uri, nil, nil, nil).user_agent
 
-    assert_match %r%\(#{Regexp.escape RUBY_RELEASE_DATE}\)%, ua
+    assert_match %r{\(#{Regexp.escape RUBY_RELEASE_DATE}\)}, ua
   ensure
     util_restore_version
   end
diff --git a/test/rubygems/test_gem_request_set.rb b/test/rubygems/test_gem_request_set.rb
index fb718294710f..f7a9191cd0b4 100644
--- a/test/rubygems/test_gem_request_set.rb
+++ b/test/rubygems/test_gem_request_set.rb
@@ -493,7 +493,7 @@ def test_sorted_requests
     rs.resolve StaticSet.new([a, b, c])
 
     names = rs.sorted_requests.map { |s| s.full_name }
-    assert_equal %w!c-2 b-2 a-2!, names
+    assert_equal %w[c-2 b-2 a-2], names
   end
 
   def test_install
@@ -551,7 +551,7 @@ def test_install_into
     assert_path_exists File.join @tempdir, 'specifications', 'a-1.gemspec'
     assert_path_exists File.join @tempdir, 'specifications', 'b-1.gemspec'
 
-    assert_equal %w!b-1 a-1!, installed.map { |s| s.full_name }
+    assert_equal %w[b-1 a-1], installed.map { |s| s.full_name }
   end
 
   def test_install_into_development_shallow
diff --git a/test/rubygems/test_gem_request_set_gem_dependency_api.rb b/test/rubygems/test_gem_request_set_gem_dependency_api.rb
index f3d4c6fc7280..bb261ee9cb5b 100644
--- a/test/rubygems/test_gem_request_set_gem_dependency_api.rb
+++ b/test/rubygems/test_gem_request_set_gem_dependency_api.rb
@@ -49,7 +49,7 @@ def test_gempspec_with_multiple_runtime_deps
       s.add_runtime_dependency 'bar', '>= 1.6.0', '< 1.6.4'
     end
     @gda.gemspec
-    assert_equal %w{ foo bar }.sort, @set.dependencies.map(&:name).sort
+    assert_equal %w[ foo bar ].sort, @set.dependencies.map(&:name).sort
     bar = @set.dependencies.find { |d| d.name == 'bar' }
     assert_equal [["<", Gem::Version.create('1.6.4')],
                   [">=", Gem::Version.create('1.6.0')]], bar.requirement.requirements.sort
diff --git a/test/rubygems/test_gem_resolver.rb b/test/rubygems/test_gem_resolver.rb
index c35a2647418b..7ace86caea25 100644
--- a/test/rubygems/test_gem_resolver.rb
+++ b/test/rubygems/test_gem_resolver.rb
@@ -546,7 +546,7 @@ def test_raises_when_possibles_are_exhausted
 
     dependency = e.conflict.dependency
 
-    assert_includes %w(a b), dependency.name
+    assert_includes %w[a b], dependency.name
     assert_equal req('>= 0'), dependency.requirement
 
     activated = e.conflict.activated
diff --git a/test/rubygems/test_gem_security_signer.rb b/test/rubygems/test_gem_security_signer.rb
index 08e74e6276e1..b9d5e9848f9a 100644
--- a/test/rubygems/test_gem_security_signer.rb
+++ b/test/rubygems/test_gem_security_signer.rb
@@ -191,7 +191,7 @@ def test_sign_expired_auto_update_exists
       signer.sign 'hello'
     end
 
-    assert_match %r%certificate /CN=nobody/DC=example not valid%, e.message
+    assert_match %r{certificate /CN=nobody/DC=example not valid}, e.message
   end
 
   def test_sign_no_key
diff --git a/test/rubygems/test_gem_server.rb b/test/rubygems/test_gem_server.rb
index ca9ba4bf9c35..350a21d1d66c 100644
--- a/test/rubygems/test_gem_server.rb
+++ b/test/rubygems/test_gem_server.rb
@@ -88,7 +88,7 @@ def test_latest_specs
     end
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'application/octet-stream', @res['content-type']
     assert_equal [['a', Gem::Version.new(2), Gem::Platform::RUBY]],
     Marshal.load(@res.body)
@@ -127,7 +127,7 @@ def test_latest_specs_gz
     end
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'application/x-gzip', @res['content-type']
     assert_equal [['a', Gem::Version.new(2), Gem::Platform::RUBY]],
                  Marshal.load(Gem::Util.gunzip(@res.body))
@@ -162,7 +162,7 @@ def test_prerelease_specs
     end
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'application/octet-stream', @res['content-type']
     assert_equal [['a', v('3.a'), Gem::Platform::RUBY]],
                  Marshal.load(@res.body)
@@ -177,7 +177,7 @@ def test_prerelease_specs_gz
     end
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'application/x-gzip', @res['content-type']
     assert_equal [['a', v('3.a'), Gem::Platform::RUBY]],
                  Marshal.load(Gem::Util.gunzip(@res.body))
@@ -223,7 +223,7 @@ def test_quick_missing
     @server.quick @req, @res
 
     assert_equal 404, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'text/plain', @res['content-type']
     assert_equal 'No gems found matching "z-9"', @res.body
     assert_equal 404, @res.status
@@ -320,7 +320,7 @@ def test_rdoc
     @server.rdoc @req, @res
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r|No documentation found|, @res.body
+    assert_match %r{No documentation found}, @res.body
     assert_equal 'text/html', @res['content-type']
   end
 
@@ -331,7 +331,7 @@ def test_root
     @server.root @req, @res
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'text/html', @res['content-type']
   end
 
@@ -529,7 +529,7 @@ def test_specs
     @server.specs @req, @res
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'application/octet-stream', @res['content-type']
 
     assert_equal [['a', Gem::Version.new(1), Gem::Platform::RUBY],
@@ -569,7 +569,7 @@ def test_specs_gz
     @server.specs @req, @res
 
     assert_equal 200, @res.status, @res.body
-    assert_match %r| \d\d:\d\d:\d\d |, @res['date']
+    assert_match %r{ \d\d:\d\d:\d\d }, @res['date']
     assert_equal 'application/x-gzip', @res['content-type']
 
     assert_equal [['a', Gem::Version.new(1), Gem::Platform::RUBY],
@@ -591,7 +591,7 @@ def test_regression_1793
 
     @server.root @req, @res
 
-    refute_match %r|%3A%2F%2F|, @res.body
+    refute_match %r{%3A%2F%2F}, @res.body
   end
 
   def util_listen
diff --git a/test/rubygems/test_gem_specification.rb b/test/rubygems/test_gem_specification.rb
index 4e8e356320a6..5a36bc50c522 100644
--- a/test/rubygems/test_gem_specification.rb
+++ b/test/rubygems/test_gem_specification.rb
@@ -140,12 +140,12 @@ def test_self_activate_ambiguous_direct
       install_specs c1, c2, b1, b2, a1
 
       a1.activate
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       require "d#{$$}"
 
-      assert_equal %w(a-1 b-2 c-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -187,12 +187,12 @@ def test_self_activate_ambiguous_indirect
       install_specs c1, c2, b1, b2, a1
 
       a1.activate
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       require "d#{$$}"
 
-      assert_equal %w(a-1 b-2 c-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -209,12 +209,12 @@ def test_self_activate_ambiguous_indirect_conflict
       install_specs c1, b1, a1, a2, c2, b2
 
       a2.activate
-      assert_equal %w(a-2), loaded_spec_names
+      assert_equal %w[a-2], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       require "d#{$$}"
 
-      assert_equal %w(a-2 b-1 c-1), loaded_spec_names
+      assert_equal %w[a-2 b-1 c-1], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -231,12 +231,12 @@ def test_self_activate_ambiguous_unrelated
       install_specs d1, c1, c2, b1, b2, a1
 
       a1.activate
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       require "d#{$$}"
 
-      assert_equal %w(a-1 d-1), loaded_spec_names
+      assert_equal %w[a-1 d-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
     end
   end
@@ -255,7 +255,7 @@ def test_require_should_prefer_latest_gem_level1
 
       require "c#{$$}"
 
-      assert_equal %w(a-1 b-2 c-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2], loaded_spec_names
     end
   end
 
@@ -275,7 +275,7 @@ def test_require_should_prefer_latest_gem_level2
 
       require "d#{$$}"
 
-      assert_equal %w(a-1 b-2 c-2 d-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2 d-2], loaded_spec_names
     end
   end
 
@@ -296,7 +296,7 @@ def test_require_finds_in_2nd_level_indirect
 
       require "d#{$$}"
 
-      assert_equal %w(a-1 b-2 c-2 d-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2 d-2], loaded_spec_names
     end
   end
 
@@ -318,7 +318,7 @@ def test_require_should_prefer_reachable_gems
 
       require "d#{$$}"
 
-      assert_equal %w(a-1 b-2 c-2 d-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2 d-2], loaded_spec_names
     end
   end
 
@@ -336,12 +336,12 @@ def test_require_should_not_conflict
       install_specs c1, c2, c3, b1, b2, a1, a2, base
 
       base.activate
-      assert_equal %w(0-1), loaded_spec_names
+      assert_equal %w[0-1], loaded_spec_names
       assert_equal ["A (>= 1)"], unresolved_names
 
       require "d#{$$}"
 
-      assert_equal %w(0-1 A-2 b-2 c-2), loaded_spec_names
+      assert_equal %w[0-1 A-2 b-2 c-2], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -364,7 +364,7 @@ def test_inner_clonflict_in_indirect_gems
 
       require "d#{$$}"
 
-      assert_includes [%w(a-1 b-2 c-3 d-2),%w(a-1 b-2 d-2)], loaded_spec_names
+      assert_includes [%w[a-1 b-2 c-3 d-2],%w[a-1 b-2 d-2]], loaded_spec_names
     end
   end
 
@@ -386,7 +386,7 @@ def test_inner_clonflict_in_indirect_gems_reversed
 
       require "d#{$$}"
 
-      assert_includes [%w(a-1 b-2 d-2 xc-3), %w(a-1 b-2 d-2)], loaded_spec_names
+      assert_includes [%w[a-1 b-2 d-2 xc-3], %w[a-1 b-2 d-2]], loaded_spec_names
     end
   end
 
@@ -515,7 +515,7 @@ def test_self_activate_via_require
       require "b/c"
     end
 
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
   end
 
   def test_self_activate_via_require_wtf
@@ -532,7 +532,7 @@ def test_self_activate_via_require_wtf
 
       a1.activate
 
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal ["b (> 0)", "d (> 0)"], unresolved_names
 
       require "b#{$$}"
@@ -543,7 +543,7 @@ def test_self_activate_via_require_wtf
 
       assert_equal "unable to find a version of 'd' to activate", e.message
 
-      assert_equal %w(a-1 b-2 c-2), loaded_spec_names
+      assert_equal %w[a-1 b-2 c-2], loaded_spec_names
       assert_equal ["d (> 0)"], unresolved_names
     end
   end
@@ -558,7 +558,7 @@ def test_self_activate_deep_unambiguous
     install_specs c1, c2, b1, b2, a1
 
     a1.activate
-    assert_equal %w(a-1 b-1 c-1), loaded_spec_names
+    assert_equal %w[a-1 b-1 c-1], loaded_spec_names
   end
 
   def test_self_activate_loaded
@@ -795,7 +795,7 @@ def test_self_from_yaml_syck_default_key_bug
     op = spec.dependencies.first.requirement.requirements.first.first
     refute_kind_of YAML::Syck::DefaultKey, op
 
-    refute_match %r%DefaultKey%, spec.to_ruby
+    refute_match %r{DefaultKey}, spec.to_ruby
   end
 
   def test_self_from_yaml_cleans_up_defaultkey
@@ -829,7 +829,7 @@ def test_self_from_yaml_cleans_up_defaultkey
     op = spec.dependencies.first.requirement.requirements.first.first
     refute_kind_of YAML::Syck::DefaultKey, op
 
-    refute_match %r%DefaultKey%, spec.to_ruby
+    refute_match %r{DefaultKey}, spec.to_ruby
   end
 
   def test_self_from_yaml_cleans_up_defaultkey_from_newer_192
@@ -863,7 +863,7 @@ def test_self_from_yaml_cleans_up_defaultkey_from_newer_192
     op = spec.dependencies.first.requirement.requirements.first.first
     refute_kind_of YAML::Syck::DefaultKey, op
 
-    refute_match %r%DefaultKey%, spec.to_ruby
+    refute_match %r{DefaultKey}, spec.to_ruby
   end
 
   def test_self_from_yaml_cleans_up_Date_objects
@@ -1910,11 +1910,11 @@ class << Gem
   end
 
   def test_files
-    @a1.files = %w(files bin/common)
-    @a1.test_files = %w(test_files bin/common)
-    @a1.executables = %w(executables common)
-    @a1.extra_rdoc_files = %w(extra_rdoc_files bin/common)
-    @a1.extensions = %w(extensions bin/common)
+    @a1.files = %w[files bin/common]
+    @a1.test_files = %w[test_files bin/common]
+    @a1.executables = %w[executables common]
+    @a1.extra_rdoc_files = %w[extra_rdoc_files bin/common]
+    @a1.extensions = %w[extensions bin/common]
 
     expected = %w[
       bin/common
@@ -1928,11 +1928,11 @@ def test_files
   end
 
   def test_files_append
-    @a1.files            = %w(files bin/common)
-    @a1.test_files       = %w(test_files bin/common)
-    @a1.executables      = %w(executables common)
-    @a1.extra_rdoc_files = %w(extra_rdoc_files bin/common)
-    @a1.extensions       = %w(extensions bin/common)
+    @a1.files            = %w[files bin/common]
+    @a1.test_files       = %w[test_files bin/common]
+    @a1.executables      = %w[executables common]
+    @a1.extra_rdoc_files = %w[extra_rdoc_files bin/common]
+    @a1.extensions       = %w[extensions bin/common]
 
     expected = %w[
       bin/common
@@ -2321,12 +2321,12 @@ def test_require_already_activated
       install_specs a1 # , a2, b1, b2, c1, c2
 
       a1.activate
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal [], unresolved_names
 
       assert require "d#{$$}"
 
-      assert_equal %w(a-1), loaded_spec_names
+      assert_equal %w[a-1], loaded_spec_names
       assert_equal [], unresolved_names
     end
   end
@@ -2344,12 +2344,12 @@ def test_require_already_activated_indirect_conflict
 
       a1.activate
       c1.activate
-      assert_equal %w(a-1 c-1), loaded_spec_names
+      assert_equal %w[a-1 c-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
 
       assert require "d#{$$}"
 
-      assert_equal %w(a-1 c-1), loaded_spec_names
+      assert_equal %w[a-1 c-1], loaded_spec_names
       assert_equal ["b (> 0)"], unresolved_names
     end
   end
@@ -2685,7 +2685,7 @@ def test_to_yaml_fancy
   def test_to_yaml_platform_empty_string
     @a1.instance_variable_set :@original_platform, ''
 
-    assert_match %r|^platform: ruby$|, @a1.to_yaml
+    assert_match %r{^platform: ruby$}, @a1.to_yaml
   end
 
   def test_to_yaml_platform_legacy
@@ -2703,7 +2703,7 @@ def test_to_yaml_platform_legacy
   def test_to_yaml_platform_nil
     @a1.instance_variable_set :@original_platform, nil
 
-    assert_match %r|^platform: ruby$|, @a1.to_yaml
+    assert_match %r{^platform: ruby$}, @a1.to_yaml
   end
 
   def test_validate
@@ -2747,7 +2747,7 @@ def test_validate_authors
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not an author}, e.message
+      assert_equal %("#{f}" or "#{t}" is not an author), e.message
 
       @a1.authors = ["#{t} (who is writing this software)"]
 
@@ -2755,7 +2755,7 @@ def test_validate_authors
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not an author}, e.message
+      assert_equal %("#{f}" or "#{t}" is not an author), e.message
     end
   end
 
@@ -2907,7 +2907,7 @@ def test_validate_description
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not a description}, e.message
+      assert_equal %("#{f}" or "#{t}" is not a description), e.message
 
       @a1.description = "#{t} (describe your package)"
 
@@ -2915,7 +2915,7 @@ def test_validate_description
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not a description}, e.message
+      assert_equal %("#{f}" or "#{t}" is not a description), e.message
     end
   end
 
@@ -2929,7 +2929,7 @@ def test_validate_email
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not an email}, e.message
+      assert_equal %("#{f}" or "#{t}" is not an email), e.message
 
       @a1.email = "#{t} (your e-mail)"
 
@@ -2937,7 +2937,7 @@ def test_validate_email
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not an email}, e.message
+      assert_equal %("#{f}" or "#{t}" is not an email), e.message
     end
   end
 
@@ -3339,7 +3339,7 @@ def test_validate_non_nil
           spec.validate
         end
 
-        assert_match %r%^#{name}%, e.message
+        assert_match %r{^#{name}}, e.message
       end
     end
   end
@@ -3439,7 +3439,7 @@ def test_validate_summary
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not a summary}, e.message
+      assert_equal %("#{f}" or "#{t}" is not a summary), e.message
 
       @a1.summary = "#{t} (describe your package)"
 
@@ -3447,7 +3447,7 @@ def test_validate_summary
         @a1.validate
       end
 
-      assert_equal %{"#{f}" or "#{t}" is not a summary}, e.message
+      assert_equal %("#{f}" or "#{t}" is not a summary), e.message
     end
   end
 
diff --git a/test/rubygems/test_gem_uninstaller.rb b/test/rubygems/test_gem_uninstaller.rb
index fc330a604034..9a98c1e590fe 100644
--- a/test/rubygems/test_gem_uninstaller.rb
+++ b/test/rubygems/test_gem_uninstaller.rb
@@ -27,7 +27,7 @@ def test_initialize_expand_path
     FileUtils.mkdir_p 'foo/bar'
     uninstaller = Gem::Uninstaller.new nil, :install_dir => 'foo//bar'
 
-    assert_match %r|foo/bar$|, uninstaller.instance_variable_get(:@gem_home)
+    assert_match %r{foo/bar$}, uninstaller.instance_variable_get(:@gem_home)
   end
 
   def test_ask_if_ok
@@ -458,12 +458,12 @@ def test_uninstall_prompts_about_broken_deps
     lines = ui.output.split("\n")
     lines.shift
 
-    assert_match %r!You have requested to uninstall the gem:!, lines.shift
+    assert_match %r{You have requested to uninstall the gem:}, lines.shift
     lines.shift
     lines.shift
 
-    assert_match %r!r-1 depends on q \(= 1\)!, lines.shift
-    assert_match %r!Successfully uninstalled q-1!, lines.last
+    assert_match %r{r-1 depends on q \(= 1\)}, lines.shift
+    assert_match %r{Successfully uninstalled q-1}, lines.last
   end
 
   def test_uninstall_only_lists_unsatisfied_deps
@@ -488,12 +488,12 @@ def test_uninstall_only_lists_unsatisfied_deps
     lines = ui.output.split("\n")
     lines.shift
 
-    assert_match %r!You have requested to uninstall the gem:!, lines.shift
+    assert_match %r{You have requested to uninstall the gem:}, lines.shift
     lines.shift
     lines.shift
 
-    assert_match %r!x-1 depends on q \(= 1.0\)!, lines.shift
-    assert_match %r!Successfully uninstalled q-1.0!, lines.last
+    assert_match %r{x-1 depends on q \(= 1.0\)}, lines.shift
+    assert_match %r{Successfully uninstalled q-1.0}, lines.last
   end
 
   def test_uninstall_doesnt_prompt_when_other_gem_satisfies_requirement
@@ -569,12 +569,12 @@ def test_uninstall_prompt_includes_dep_type
     lines = ui.output.split("\n")
     lines.shift
 
-    assert_match %r!You have requested to uninstall the gem:!, lines.shift
+    assert_match %r{You have requested to uninstall the gem:}, lines.shift
     lines.shift
     lines.shift
 
-    assert_match %r!r-1 depends on q \(= 1, development\)!, lines.shift
-    assert_match %r!Successfully uninstalled q-1!, lines.last
+    assert_match %r{r-1 depends on q \(= 1, development\)}, lines.shift
+    assert_match %r{Successfully uninstalled q-1}, lines.last
   end
 
   def test_uninstall_prompt_only_lists_the_dependents_that_prevented_uninstallation
@@ -598,12 +598,12 @@ def test_uninstall_prompt_only_lists_the_dependents_that_prevented_uninstallatio
     lines = ui.output.split("\n")
     lines.shift
 
-    assert_match %r!You have requested to uninstall the gem:!, lines.shift
+    assert_match %r{You have requested to uninstall the gem:}, lines.shift
     lines.shift
     lines.shift
 
-    assert_match %r!s-1 depends on q \(= 1\)!, lines.shift
-    assert_match %r!Successfully uninstalled q-1!, lines.last
+    assert_match %r{s-1 depends on q \(= 1\)}, lines.shift
+    assert_match %r{Successfully uninstalled q-1}, lines.last
   end
 
   def test_uninstall_no_permission
diff --git a/test/rubygems/test_require.rb b/test/rubygems/test_require.rb
index 67c55416d4c1..7b071ba88f7c 100644
--- a/test/rubygems/test_require.rb
+++ b/test/rubygems/test_require.rb
@@ -70,7 +70,7 @@ def test_dash_i_beats_gems
     assert_require 'test_gem_require_a'
     assert_require 'b/c' # this should be required from -I
     assert_equal "world", ::Object::HELLO
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
   ensure
     $LOAD_PATH.replace lp
     Object.send :remove_const, :HELLO if Object.const_defined? :HELLO
@@ -114,7 +114,7 @@ def test_dash_i_beats_default_gems
     assert_require 'b/c'
     assert_require 'c/c' # this should be required from -I
     assert_equal "world", ::Object::HELLO
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
   ensure
     $LOAD_PATH.replace lp
     Object.send :remove_const, :HELLO if Object.const_defined? :HELLO
@@ -171,11 +171,11 @@ def test_require_is_not_lazy_with_exact_req
     install_specs b1, b2, a1
 
     assert_require 'test_gem_require_a'
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
     assert_equal unresolved_names, []
 
     assert_require "b/c"
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
   end
 
   def test_require_is_lazy_with_inexact_req
@@ -186,11 +186,11 @@ def test_require_is_lazy_with_inexact_req
     install_specs b1, b2, a1
 
     assert_require 'test_gem_require_a'
-    assert_equal %w(a-1), loaded_spec_names
+    assert_equal %w[a-1], loaded_spec_names
     assert_equal unresolved_names, ["b (>= 1)"]
 
     assert_require "b/c"
-    assert_equal %w(a-1 b-2), loaded_spec_names
+    assert_equal %w[a-1 b-2], loaded_spec_names
   end
 
   def test_require_is_not_lazy_with_one_possible
@@ -200,11 +200,11 @@ def test_require_is_not_lazy_with_one_possible
     install_specs b1, a1
 
     assert_require 'test_gem_require_a'
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
     assert_equal unresolved_names, []
 
     assert_require "b/c"
-    assert_equal %w(a-1 b-1), loaded_spec_names
+    assert_equal %w[a-1 b-1], loaded_spec_names
   end
 
   def test_require_can_use_a_pathname_object
@@ -213,7 +213,7 @@ def test_require_can_use_a_pathname_object
     install_specs a1
 
     assert_require Pathname.new 'test_gem_require_a'
-    assert_equal %w(a-1), loaded_spec_names
+    assert_equal %w[a-1], loaded_spec_names
     assert_equal unresolved_names, []
   end
 
@@ -246,7 +246,7 @@ def test_activate_via_require_respects_loaded_files
     # This case is fine because our lazy loading is provided exactly
     # the same behavior as eager loading would have.
 
-    assert_equal %w(a-1 b-2), loaded_spec_names
+    assert_equal %w[a-1 b-2], loaded_spec_names
   ensure
     $LOAD_PATH.replace lp unless java_platform?
   end
@@ -262,12 +262,12 @@ def test_already_activated_direct_conflict
 
     a1.activate
     c1.activate
-    assert_equal %w(a-1 c-1), loaded_spec_names
+    assert_equal %w[a-1 c-1], loaded_spec_names
     assert_equal ["b (> 0)"], unresolved_names
 
     assert require("ib")
 
-    assert_equal %w(a-1 b-1 c-1), loaded_spec_names
+    assert_equal %w[a-1 b-1 c-1], loaded_spec_names
     assert_equal [], unresolved_names
   end
 
@@ -284,7 +284,7 @@ def test_multiple_gems_with_the_same_path
 
     a1.activate
     c1.activate
-    assert_equal %w(a-1 c-1), loaded_spec_names
+    assert_equal %w[a-1 c-1], loaded_spec_names
     assert_equal ["b (> 0)", "x (> 0)"], unresolved_names
 
     e = assert_raises(Gem::LoadError) do
@@ -307,7 +307,7 @@ def test_unable_to_find_good_unresolved_version
 
     a1.activate
     c1.activate
-    assert_equal %w(a-1 c-1), loaded_spec_names
+    assert_equal %w[a-1 c-1], loaded_spec_names
     assert_equal ["b (> 0)"], unresolved_names
 
     e = assert_raises(Gem::LoadError) do
@@ -338,9 +338,9 @@ def test_require_works_after_cleanup
 
     # Require gems that have not been removed.
     assert_require 'a/b'
-    assert_equal %w(a-1.0), loaded_spec_names
+    assert_equal %w[a-1.0], loaded_spec_names
     assert_require 'b/d'
-    assert_equal %w(a-1.0 b-2.0), loaded_spec_names
+    assert_equal %w[a-1.0 b-2.0], loaded_spec_names
   end
 
   def test_require_doesnt_traverse_development_dependencies
@@ -352,7 +352,7 @@ def test_require_doesnt_traverse_development_dependencies
     install_specs a, w1, w2, z
 
     assert gem("z")
-    assert_equal %w(z-1), loaded_spec_names
+    assert_equal %w[z-1], loaded_spec_names
     assert_equal ["w (> 0)"], unresolved_names
 
     assert require("a#{$$}")
@@ -363,7 +363,7 @@ def test_default_gem_only
                                         nil, "default/gem.rb")
     install_default_specs(default_gem_spec)
     assert_require "default/gem"
-    assert_equal %w(default-2.0.0.0), loaded_spec_names
+    assert_equal %w[default-2.0.0.0], loaded_spec_names
   end
 
   def test_default_gem_require_activates_just_once
@@ -403,7 +403,7 @@ def test_default_gem_and_normal_gem
                                "lib/default/gem.rb")
     install_specs(normal_gem_spec)
     assert_require "default/gem"
-    assert_equal %w(default-3.0), loaded_spec_names
+    assert_equal %w[default-3.0], loaded_spec_names
   end
 
   def test_default_gem_prerelease
@@ -416,7 +416,7 @@ def test_default_gem_prerelease
     install_default_specs(normal_gem_higher_prerelease_spec)
 
     assert_require "default/gem"
-    assert_equal %w(default-3.0.0.rc2), loaded_spec_names
+    assert_equal %w[default-3.0.0.rc2], loaded_spec_names
   end
 
   def loaded_spec_names
@@ -462,7 +462,7 @@ def self.gem(*args)
       end
     end
     assert c.send(:require, "default/gem")
-    assert_equal %w(default-2.0.0.0), loaded_spec_names
+    assert_equal %w[default-2.0.0.0], loaded_spec_names
   end
 
   def test_require_default_when_gem_defined
@@ -474,7 +474,7 @@ def self.gem(*args)
       end
     end
     assert c.send(:require, "a#{$$}")
-    assert_equal %W(a#{$$}-1), loaded_spec_names
+    assert_equal %W[a#{$$}-1], loaded_spec_names
   end
 
   def test_require_bundler