[rubygems/rubygems] util/rubocop -A --only Lint/UnusedBlockArgument

https://github.com/rubygems/rubygems/commit/d8efd919db

lib/rubygems/available_set.rb

@@ -146,7 +146,7 @@ class Gem::AvailableSet
   end
 
   def remove_installed!(dep)
-    @set.reject! do |t|
+    @set.reject! do |_t|
       # already locally installed
       Gem::Specification.any? do |installed_spec|
         dep.name == installed_spec.name &&

lib/rubygems/command.rb

@@ -583,12 +583,12 @@ class Gem::Command
   # Add the options common to all commands.
 
   add_common_option("-h", "--help",
-                    "Get help on this command") do |value, options|
+                    "Get help on this command") do |_value, options|
     options[:help] = true
   end
 
   add_common_option("-V", "--[no-]verbose",
-                    "Set the verbose level of output") do |value, options|
+                    "Set the verbose level of output") do |value, _options|
     # Set us to "really verbose" so the progress meter works
     if Gem.configuration.verbose && value
       Gem.configuration.verbose = 1
@@ -597,12 +597,12 @@ class Gem::Command
     end
   end
 
-  add_common_option("-q", "--quiet", "Silence command progress meter") do |value, options|
+  add_common_option("-q", "--quiet", "Silence command progress meter") do |_value, _options|
     Gem.configuration.verbose = false
   end
 
   add_common_option("--silent",
-                    "Silence RubyGems output") do |value, options|
+                    "Silence RubyGems output") do |_value, options|
     options[:silent] = true
   end
 

lib/rubygems/commands/build_command.rb

@@ -11,11 +11,11 @@ class Gem::Commands::BuildCommand < Gem::Command
 
     add_platform_option
 
-    add_option "--force", "skip validation of the spec" do |value, options|
+    add_option "--force", "skip validation of the spec" do |_value, options|
       options[:force] = true
     end
 
-    add_option "--strict", "consider warnings as errors when validating the spec" do |value, options|
+    add_option "--strict", "consider warnings as errors when validating the spec" do |_value, options|
       options[:strict] = true
     end
 

lib/rubygems/commands/cleanup_command.rb

@@ -11,12 +11,12 @@ class Gem::Commands::CleanupCommand < Gem::Command
           :check_dev => true
 
     add_option("-n", "-d", "--dry-run",
-               "Do not uninstall gems") do |value, options|
+               "Do not uninstall gems") do |_value, options|
       options[:dryrun] = true
     end
 
     add_option(:Deprecated, "--dryrun",
-               "Do not uninstall gems") do |value, options|
+               "Do not uninstall gems") do |_value, options|
       options[:dryrun] = true
     end
     deprecate_option("--dryrun", extra_msg: "Use --dry-run instead")

lib/rubygems/commands/exec_command.rb

@@ -22,7 +22,7 @@ class Gem::Commands::ExecCommand < Gem::Command
 
     add_option(:"Install/Update", "--conservative",
       "Prefer the most recent installed version, ",
-      "rather than the latest version overall") do |value, options|
+      "rather than the latest version overall") do |_value, options|
       options[:conservative] = true
     end
   end

lib/rubygems/commands/specification_command.rb

@@ -20,19 +20,19 @@ class Gem::Commands::SpecificationCommand < Gem::Command
     add_prerelease_option
 
     add_option("--all", "Output specifications for all versions of",
-               "the gem") do |value, options|
+               "the gem") do |_value, options|
       options[:all] = true
     end
 
-    add_option("--ruby", "Output ruby format") do |value, options|
+    add_option("--ruby", "Output ruby format") do |_value, options|
       options[:format] = :ruby
     end
 
-    add_option("--yaml", "Output YAML format") do |value, options|
+    add_option("--yaml", "Output YAML format") do |_value, options|
       options[:format] = :yaml
     end
 
-    add_option("--marshal", "Output Marshal format") do |value, options|
+    add_option("--marshal", "Output Marshal format") do |_value, options|
       options[:format] = :marshal
     end
 

lib/rubygems/commands/uninstall_command.rb

@@ -79,7 +79,7 @@ class Gem::Commands::UninstallCommand < Gem::Command
 
     add_option("--vendor",
                "Uninstall gem from the vendor directory.",
-               "Only for use by gem repackagers.") do |value, options|
+               "Only for use by gem repackagers.") do |_value, options|
       unless Gem.vendor_dir
         raise Gem::OptionParser::InvalidOption.new "your platform is not supported"
       end

lib/rubygems/commands/unpack_command.rb

@@ -28,7 +28,7 @@ class Gem::Commands::UnpackCommand < Gem::Command
       options[:target] = value
     end
 
-    add_option("--spec", "unpack the gem specification") do |value, options|
+    add_option("--spec", "unpack the gem specification") do |_value, options|
       options[:spec] = true
     end
 

lib/rubygems/commands/update_command.rb

@@ -300,7 +300,7 @@ command to remove old versions.
   def which_to_update(highest_installed_gems, gem_names)
     result = []
 
-    highest_installed_gems.each do |l_name, l_spec|
+    highest_installed_gems.each do |_l_name, l_spec|
       next if !gem_names.empty? &&
               gem_names.none? {|name| name == l_spec.name }
 

lib/rubygems/gemcutter_utilities.rb

@@ -137,7 +137,7 @@ module Gem::GemcutterUtilities
       request.body = URI.encode_www_form({ :api_key => api_key }.merge(update_scope_params))
     end
 
-    with_response response do |resp|
+    with_response response do |_resp|
       say "Added #{scope} scope to the existing API key"
     end
   end

lib/rubygems/install_update_options.rb

@@ -49,7 +49,7 @@ module Gem::InstallUpdateOptions
 
     add_option(:"Install/Update", "--vendor",
                "Install gem into the vendor directory.",
-               "Only for use by gem repackagers.") do |value, options|
+               "Only for use by gem repackagers.") do |_value, options|
       unless Gem.vendor_dir
         raise Gem::OptionParser::InvalidOption.new "your platform is not supported"
       end
@@ -59,7 +59,7 @@ module Gem::InstallUpdateOptions
     end
 
     add_option(:"Install/Update", "-N", "--no-document",
-               "Disable documentation generation") do |value, options|
+               "Disable documentation generation") do |_value, options|
       options[:document] = []
     end
 
@@ -103,21 +103,21 @@ module Gem::InstallUpdateOptions
 
     add_option(:"Install/Update", "--development",
                 "Install additional development",
-                "dependencies") do |value, options|
+                "dependencies") do |_value, options|
       options[:development] = true
       options[:dev_shallow] = true
     end
 
     add_option(:"Install/Update", "--development-all",
                 "Install development dependencies for all",
-                "gems (including dev deps themselves)") do |value, options|
+                "gems (including dev deps themselves)") do |_value, options|
       options[:development] = true
       options[:dev_shallow] = false
     end
 
     add_option(:"Install/Update", "--conservative",
                 "Don't attempt to upgrade gems already",
-                "meeting version requirement") do |value, options|
+                "meeting version requirement") do |_value, options|
       options[:conservative] = true
       options[:minimal_deps] = true
     end
@@ -135,7 +135,7 @@ module Gem::InstallUpdateOptions
 
     add_option(:"Install/Update", "-g", "--file [FILE]",
                "Read from a gem dependencies API file and",
-               "install the listed gems") do |v,o|
+               "install the listed gems") do |v,_o|
       v = Gem::GEM_DEP_FILES.find do |file|
         File.exist? file
       end unless v
@@ -153,29 +153,29 @@ module Gem::InstallUpdateOptions
     add_option(:"Install/Update", "--without GROUPS", Array,
                "Omit the named groups (comma separated)",
                "when installing from a gem dependencies",
-               "file") do |v,o|
+               "file") do |v,_o|
       options[:without_groups].concat v.map {|without| without.intern }
     end
 
     add_option(:"Install/Update", "--default",
                "Add the gem's full specification to",
-               "specifications/default and extract only its bin") do |v,o|
+               "specifications/default and extract only its bin") do |v,_o|
       options[:install_as_default] = v
     end
 
     add_option(:"Install/Update", "--explain",
                "Rather than install the gems, indicate which would",
-               "be installed") do |v,o|
+               "be installed") do |v,_o|
       options[:explain] = v
     end
 
     add_option(:"Install/Update", "--[no-]lock",
-               "Create a lock file (when used with -g/--file)") do |v,o|
+               "Create a lock file (when used with -g/--file)") do |v,_o|
       options[:lock] = v
     end
 
     add_option(:"Install/Update", "--[no-]suggestions",
-               "Suggest alternates when gems are not found") do |v,o|
+               "Suggest alternates when gems are not found") do |v,_o|
       options[:suggest_alternate] = v
     end
   end

lib/rubygems/local_remote_options.rb

@@ -39,17 +39,17 @@ module Gem::LocalRemoteOptions
 
   def add_local_remote_options
     add_option(:"Local/Remote", "-l", "--local",
-               "Restrict operations to the LOCAL domain") do |value, options|
+               "Restrict operations to the LOCAL domain") do |_value, options|
       options[:domain] = :local
     end
 
     add_option(:"Local/Remote", "-r", "--remote",
-      "Restrict operations to the REMOTE domain") do |value, options|
+      "Restrict operations to the REMOTE domain") do |_value, options|
       options[:domain] = :remote
     end
 
     add_option(:"Local/Remote", "-b", "--both",
-               "Allow LOCAL and REMOTE operations") do |value, options|
+               "Allow LOCAL and REMOTE operations") do |_value, options|
       options[:domain] = :both
     end
 
@@ -67,7 +67,7 @@ module Gem::LocalRemoteOptions
     add_option(:"Local/Remote", "-B", "--bulk-threshold COUNT",
                "Threshold for switching to bulk",
                "synchronization (default #{Gem.configuration.bulk_threshold})") do
-      |value, options|
+      |value, _options|
       Gem.configuration.bulk_threshold = value.to_i
     end
   end
@@ -77,7 +77,7 @@ module Gem::LocalRemoteOptions
 
   def add_clear_sources_option
     add_option(:"Local/Remote", "--clear-sources",
-               "Clear the gem sources") do |value, options|
+               "Clear the gem sources") do |_value, options|
       Gem.sources = nil
       options[:sources_cleared] = true
     end
@@ -119,7 +119,7 @@ module Gem::LocalRemoteOptions
 
   def add_update_sources_option
     add_option(:Deprecated, "-u", "--[no-]update-sources",
-               "Update local source cache") do |value, options|
+               "Update local source cache") do |value, _options|
       Gem.configuration.update_sources = value
     end
   end

lib/rubygems/package.rb

@@ -691,7 +691,7 @@ EOM
               "package content (data.tar.gz) is missing", @gem
     end
 
-    if (duplicates = @files.group_by {|f| f }.select {|k,v| v.size > 1 }.map(&:first)) && duplicates.any?
+    if (duplicates = @files.group_by {|f| f }.select {|_k,v| v.size > 1 }.map(&:first)) && duplicates.any?
       raise Gem::Security::Exception, "duplicate files in the package: (#{duplicates.map(&:inspect).join(', ')})"
     end
   end

lib/rubygems/query_utils.rb

@@ -17,7 +17,7 @@ module Gem::QueryUtils
       options[:installed] = value
     end
 
-    add_option("-I", "Equivalent to --no-installed") do |value, options|
+    add_option("-I", "Equivalent to --no-installed") do |_value, options|
       options[:installed] = false
     end
 
@@ -197,7 +197,7 @@ module Gem::QueryUtils
   end
 
   def output_versions(output, versions)
-    versions.each do |gem_name, matching_tuples|
+    versions.each do |_gem_name, matching_tuples|
       matching_tuples = matching_tuples.sort_by {|n,_| n.version }.reverse
 
       platforms = Hash.new {|h,version| h[version] = [] }

lib/rubygems/security/policy.rb

@@ -225,7 +225,7 @@ class Gem::Security::Policy
     trust_dir = opt[:trust_dir]
     time      = Time.now
 
-    _, signer_digests = digests.find do |algorithm, file_digests|
+    _, signer_digests = digests.find do |_algorithm, file_digests|
       file_digests.values.first.name == Gem::Security::DIGEST_NAME
     end
 

lib/rubygems/source/local.rb

@@ -113,7 +113,7 @@ class Gem::Source::Local < Gem::Source
   def download(spec, cache_dir = nil) # :nodoc:
     load_specs :complete
 
-    @specs.each do |name, data|
+    @specs.each do |_name, data|
       return data[0] if data[1].spec == spec
     end
 

lib/rubygems/spec_fetcher.rb

@@ -193,10 +193,10 @@ class Gem::SpecFetcher
     matches = if matches.empty? && type != :prerelease
       suggest_gems_from_name gem_name, :prerelease
     else
-      matches.uniq.sort_by {|name, dist| dist }
+      matches.uniq.sort_by {|_name, dist| dist }
     end
 
-    matches.map {|name, dist| name }.uniq.first(num_results)
+    matches.map {|name, _dist| name }.uniq.first(num_results)
   end
 
   ##

lib/rubygems/specification.rb

@@ -175,7 +175,7 @@ class Gem::Specification < Gem::BasicSpecification
   end
 
   @@attributes = @@default_value.keys.sort_by {|s| s.to_s }
-  @@array_attributes = @@default_value.reject {|k,v| v != [] }.keys
+  @@array_attributes = @@default_value.reject {|_k,v| v != [] }.keys
   @@nil_attributes, @@non_nil_attributes = @@default_value.keys.partition do |k|
     @@default_value[k].nil?
   end
@@ -1072,7 +1072,7 @@ class Gem::Specification < Gem::BasicSpecification
 
   def self.find_in_unresolved_tree(path)
     unresolved_specs.each do |spec|
-      spec.traverse do |from_spec, dep, to_spec, trail|
+      spec.traverse do |_from_spec, _dep, to_spec, trail|
         if to_spec.has_conflicts? || to_spec.conficts_when_loaded_with?(trail)
           :next
         else
@@ -2376,7 +2376,7 @@ class Gem::Specification < Gem::BasicSpecification
   # True if this gem has the same attributes as +other+.
 
   def same_attributes?(spec)
-    @@attributes.all? {|name, default| self.send(name) == spec.send(name) }
+    @@attributes.all? {|name, _default| self.send(name) == spec.send(name) }
   end
 
   private :same_attributes?

lib/rubygems/uninstaller.rb

@@ -341,7 +341,7 @@ class Gem::Uninstaller
       s.name == spec.name && s.full_name != spec.full_name
     end
 
-    spec.dependent_gems(@check_dev).each do |dep_spec, dep, satlist|
+    spec.dependent_gems(@check_dev).each do |dep_spec, dep, _satlist|
       unless siblings.any? {|s| s.satisfies_requirement? dep }
         msg << "#{dep_spec.name}-#{dep_spec.version} depends on #{dep}"
       end

lib/rubygems/validator.rb

@@ -87,7 +87,7 @@ class Gem::Validator
 
         good, gone, unreadable = nil, nil, nil, nil
 
-        File.open gem_path, Gem.binary_mode do |file|
+        File.open gem_path, Gem.binary_mode do |_file|
           package = Gem::Package.new gem_path
 
           good, gone = package.contents.partition do |file_name|

test/rubygems/test_gem.rb

@@ -1740,7 +1740,7 @@ class TestGem < Gem::TestCase
     #
     # FIXME what does this solve precisely? -ebh
     #
-    @additional.each do |dir|
+    @additional.each do |_dir|
       Gem.ensure_gem_subdirectories @gemhome
     end
   end

test/rubygems/test_gem_command.rb

@@ -15,7 +15,7 @@ class TestGemCommand < Gem::TestCase
     @common_options = Gem::Command.common_options.dup
     Gem::Command.common_options.clear
     Gem::Command.common_options << [
-      ["-x", "--exe", "Execute"], lambda do |*a|
+      ["-x", "--exe", "Execute"], lambda do |*_a|
         @xopt = true
       end
     ]
@@ -151,7 +151,7 @@ class TestGemCommand < Gem::TestCase
     done = false
 
     use_ui @ui do
-      @cmd.add_option("-h", "--help [COMMAND]", "Get help on COMMAND") do |value, options|
+      @cmd.add_option("-h", "--help [COMMAND]", "Get help on COMMAND") do |_value, options|
         options[:help] = true
         done = true
       end
@@ -174,7 +174,7 @@ class TestGemCommand < Gem::TestCase
   end
 
   def test_invoke_with_options
-    @cmd.add_option("-h", "--help [COMMAND]", "Get help on COMMAND") do |value, options|
+    @cmd.add_option("-h", "--help [COMMAND]", "Get help on COMMAND") do |_value, options|
       options[:help] = true
     end
 
@@ -202,13 +202,13 @@ class TestGemCommand < Gem::TestCase
   end
 
   def test_option_recognition
-    @cmd.add_option("-h", "--help [COMMAND]", "Get help on COMMAND") do |value, options|
+    @cmd.add_option("-h", "--help [COMMAND]", "Get help on COMMAND") do |_value, options|
       options[:help] = true
     end
-    @cmd.add_option("-f", "--file FILE", "File option") do |value, options|
+    @cmd.add_option("-f", "--file FILE", "File option") do |_value, options|
       options[:help] = true
     end
-    @cmd.add_option("--silent", "Silence RubyGems output") do |value, options|
+    @cmd.add_option("--silent", "Silence RubyGems output") do |_value, options|
       options[:silent] = true
     end
     assert @cmd.handles?(["-x"])
@@ -236,7 +236,7 @@ WARNING:  The \"--test\" option has been deprecated and will be removed in Rubyg
       def initialize
         super("test", "Gem::Command instance for testing")
 
-        add_option("-t", "--test", "Test command") do |value, options|
+        add_option("-t", "--test", "Test command") do |_value, options|
           options[:test] = true
         end
 
@@ -265,7 +265,7 @@ WARNING:  The \"--test\" option has been deprecated and will be removed in futur
       def initialize
         super("test", "Gem::Command instance for testing")
 
-        add_option("-t", "--test", "Test command") do |value, options|
+        add_option("-t", "--test", "Test command") do |_value, options|
           options[:test] = true
         end
 
@@ -294,7 +294,7 @@ WARNING:  The \"--test\" option has been deprecated and will be removed in Rubyg
       def initialize
         super("test", "Gem::Command instance for testing")
 
-        add_option("-t", "--test", "Test command") do |value, options|
+        add_option("-t", "--test", "Test command") do |_value, options|
           options[:test] = true
         end
 
@@ -323,7 +323,7 @@ WARNING:  The \"--test\" option has been deprecated and will be removed in futur
       def initialize
         super("test", "Gem::Command instance for testing")
 
-        add_option("-t", "--test", "Test command") do |value, options|
+        add_option("-t", "--test", "Test command") do |_value, options|
           options[:test] = true
         end
 

test/rubygems/test_gem_commands_help_command.rb

@@ -63,7 +63,7 @@ class TestGemCommandsHelpCommand < Gem::TestCase
   def test_gem_help_commands_omits_deprecated_commands
     mgr = Gem::CommandManager.new
 
-    util_gem "commands" do |out, err|
+    util_gem "commands" do |out, _err|
       deprecated_commands = mgr.command_names.select {|cmd| mgr[cmd].deprecated? }
       deprecated_commands.each do |cmd|
         refute_match(/\A\s+#{cmd}\s+\S+\z/, out)

test/rubygems/test_gem_dependency_installer.rb

@@ -561,7 +561,7 @@ class TestGemDependencyInstaller < Gem::TestCase
 
     done_installing_called = false
 
-    Gem.done_installing do |dep_installer, specs|
+    Gem.done_installing do |dep_installer, _specs|
       done_installing_called = true
       assert_empty dep_installer.document
     end

test/rubygems/test_gem_ext_rake_builder.rb

@@ -91,7 +91,7 @@ class TestGemExtRakeBuilder < Gem::TestCase
     create_temp_mkrf_file("task :default do abort 'fail' end")
     output = []
 
-    build_rake_in(false) do |rake|
+    build_rake_in(false) do |_rake|
       error = assert_raise Gem::InstallError do
         Gem::Ext::RakeBuilder.build "mkrf_conf.rb", @dest_path, output, [], nil, @ext
       end

test/rubygems/test_gem_installer.rb

@@ -1025,7 +1025,7 @@ gem 'other', version
     @gem = setup_base_gem
 
     # build old version that has a bin file
-    installer = util_setup_gem do |spec|
+    installer = util_setup_gem do |_spec|
       File.open File.join("bin", "executable"), "w" do |f|
         f.puts "require 'code'"
       end

test/rubygems/test_gem_package_tar_reader.rb

@@ -77,7 +77,7 @@ class TestGemPackageTarReader < Gem::Package::TarTestCase
     io = TempIO.new tar
 
     Gem::Package::TarReader.new io do |tar_reader|
-      tar_reader.seek "nonexistent" do |entry|
+      tar_reader.seek "nonexistent" do |_entry|
         flunk "entry missing but entry-found block was run"
       end
 

test/rubygems/test_gem_remote_fetcher.rb

@@ -1142,7 +1142,7 @@ PeIQQkFng2VVot/WAQbv3ePqWq07g1BBcwIBAg==
       :SSLVerifyClient => nil,
       :SSLCertName => nil,
     }.merge(config))
-    server.mount_proc("/yaml") do |req, res|
+    server.mount_proc("/yaml") do |_req, res|
       res.body = "--- true\n"
     end
     server.mount_proc("/insecure_redirect") do |req, res|
@@ -1179,7 +1179,7 @@ PeIQQkFng2VVot/WAQbv3ePqWq07g1BBcwIBAg==
       :Logger => null_logger,
       :AccessLog => null_logger
     )
-    s.mount_proc("/kill") {|req, res| s.shutdown }
+    s.mount_proc("/kill") {|_req, _res| s.shutdown }
     s.mount_proc("/yaml") do |req, res|
       if req["X-Captain"]
         res.body = req["X-Captain"]
@@ -1193,7 +1193,7 @@ PeIQQkFng2VVot/WAQbv3ePqWq07g1BBcwIBAg==
         res["Content-Type"] = "text/html"
       end
     end
-    s.mount_proc("/yaml.Z") do |req, res|
+    s.mount_proc("/yaml.Z") do |_req, res|
       if @enable_zip
         res.body = Zlib::Deflate.deflate(data)
         res["Content-Type"] = "text/plain"

test/rubygems/test_gem_request.rb

@@ -248,7 +248,7 @@ class TestGemRequest < Gem::TestCase
 
   def test_fetch_head
     uri = Gem::Uri.new(URI.parse "#{@gem_repo}/specs.#{Gem.marshal_version}")
-    response = util_stub_net_http(:body => "", :code => 200) do |conn|
+    response = util_stub_net_http(:body => "", :code => 200) do |_conn|
       @request = make_request(uri, Net::HTTP::Get, nil, nil)
       @request.fetch
     end

test/rubygems/test_gem_request_set.rb

@@ -45,7 +45,7 @@ class TestGemRequestSet < Gem::TestCase
 
     done_installing_ran = false
 
-    Gem.done_installing do |installer, specs|
+    Gem.done_installing do |_installer, _specs|
       done_installing_ran = true
     end
 
@@ -56,7 +56,7 @@ class TestGemRequestSet < Gem::TestCase
       io.puts 'gem "a"'
       io.flush
 
-      result = rs.install_from_gemdeps :gemdeps => io.path do |req, installer|
+      result = rs.install_from_gemdeps :gemdeps => io.path do |req, _installer|
         installed << req.full_name
       end
 
@@ -114,7 +114,7 @@ Gems to install:
       :install_dir => "#{@gemhome}2",
     }
 
-    rs.install_from_gemdeps options do |req, installer|
+    rs.install_from_gemdeps options do |req, _installer|
       installed << req.full_name
     end
 
@@ -172,7 +172,7 @@ DEPENDENCIES
       io.puts 'gem "b"'
     end
 
-    rs.install_from_gemdeps :gemdeps => "gem.deps.rb" do |req, installer|
+    rs.install_from_gemdeps :gemdeps => "gem.deps.rb" do |req, _installer|
       installed << req.full_name
     end
 
@@ -226,7 +226,7 @@ end
       io.puts("gemspec")
     end
 
-    rs.install_from_gemdeps :gemdeps => "Gemfile" do |req, installer|
+    rs.install_from_gemdeps :gemdeps => "Gemfile" do |req, _installer|
       installed << req.full_name
     end
 
@@ -251,7 +251,7 @@ ruby "0"
 
       io.flush
 
-      rs.install_from_gemdeps :gemdeps => io.path do |req, installer|
+      rs.install_from_gemdeps :gemdeps => io.path do |req, _installer|
         installed << req.full_name
       end
     end

test/rubygems/test_gem_silent_ui.rb

@@ -115,7 +115,7 @@ class TestGemSilentUI < Gem::TestCase
   end
 
   def test_new_without_dev_null
-    File.stub(:open, ->(path, mode) { raise Errno::ENOTCAPABLE if path == IO::NULL }) do
+    File.stub(:open, ->(path, _mode) { raise Errno::ENOTCAPABLE if path == IO::NULL }) do
       Gem::SilentUI.new
     end
   end

test/rubygems/test_gem_specification.rb

@@ -2930,7 +2930,7 @@ duplicate dependency on c (>= 1.2.3, development), (~> 1.2) use:
       { b: Gem::Dependency.new("x","1") }
     end
 
-    specification.define_singleton_method(:find_all_by_name) do |dep_name|
+    specification.define_singleton_method(:find_all_by_name) do |_dep_name|
       []
     end
 
@@ -2957,7 +2957,7 @@ Please report a bug if this causes problems.
       { b: Gem::Dependency.new("x","1") }
     end
 
-    specification.define_singleton_method(:find_all_by_name) do |dep_name|
+    specification.define_singleton_method(:find_all_by_name) do |_dep_name|
       [
         specification.new {|s| s.name = "z", s.version = Gem::Version.new("1") },
         specification.new {|s| s.name = "z", s.version = Gem::Version.new("2") },

test/rubygems/test_require.rb

@@ -425,7 +425,7 @@ class TestGemRequire < Gem::TestCase
 
     times_called = 0
 
-    Kernel.stub(:gem, ->(name, requirement) { times_called += 1 }) do
+    Kernel.stub(:gem, ->(_name, _requirement) { times_called += 1 }) do
       refute_require "default/gem"
     end