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-rw-r--r--test/rubygems/helper.rb1565
1 files changed, 1565 insertions, 0 deletions
diff --git a/test/rubygems/helper.rb b/test/rubygems/helper.rb
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+++ b/test/rubygems/helper.rb
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+# frozen_string_literal: true
+
+require "rubygems"
+
+begin
+ gem "test-unit", "~> 3.0"
+rescue Gem::LoadError
+end
+
+require "test/unit"
+
+ENV["JARS_SKIP"] = "true" if Gem.java_platform? # avoid unnecessary and noisy `jar-dependencies` post install hook
+
+require "fileutils"
+require "pathname"
+require "pp"
+require "rubygems/package"
+require "shellwords"
+require "tmpdir"
+require "rubygems/vendor/uri/lib/uri"
+require "zlib"
+require "benchmark" # stdlib
+require_relative "mock_gem_ui"
+
+module Gem
+ ##
+ # Allows setting the gem path searcher.
+
+ def self.searcher=(searcher)
+ @searcher = searcher
+ end
+
+ ##
+ # Allows toggling Windows behavior.
+
+ def self.win_platform=(val)
+ @@win_platform = val
+ end
+
+ ##
+ # Allows setting path to Ruby.
+
+ def self.ruby=(ruby)
+ @ruby = ruby
+ end
+
+ ##
+ # Sets the default user interaction to a MockGemUi.
+
+ module DefaultUserInteraction
+ @ui = Gem::MockGemUi.new
+ end
+end
+
+require "rubygems/command"
+
+class Gem::Command
+ ##
+ # Allows resetting the hash of specific args per command.
+
+ def self.specific_extra_args_hash=(value)
+ @specific_extra_args_hash = value
+ end
+end
+
+##
+# RubyGemTestCase provides a variety of methods for testing rubygems and
+# gem-related behavior in a sandbox. Through RubyGemTestCase you can install
+# and uninstall gems, fetch remote gems through a stub fetcher and be assured
+# your normal set of gems is not affected.
+
+class Gem::TestCase < Test::Unit::TestCase
+ attr_accessor :fetcher # :nodoc:
+
+ attr_accessor :gem_repo # :nodoc:
+
+ attr_accessor :uri # :nodoc:
+
+ @@tempdirs = []
+
+ def assert_activate(expected, *specs)
+ specs.each do |spec|
+ case spec
+ when String then
+ Gem::Specification.find_by_name(spec).activate
+ when Gem::Specification then
+ spec.activate
+ else
+ flunk spec.inspect
+ end
+ end
+
+ loaded = Gem.loaded_specs.values.map(&:full_name)
+
+ assert_equal expected.sort, loaded.sort if expected
+ end
+
+ def assert_directory_exists(path, msg = nil)
+ msg = build_message(msg, "Expected path '#{path}' to be a directory")
+ assert_path_exist path
+ assert File.directory?(path), msg
+ end
+
+ def refute_directory_exists(path, msg = nil)
+ msg = build_message(msg, "Expected path '#{path}' not to be a directory")
+ assert_path_not_exist path
+ refute File.directory?(path), msg
+ end
+
+ # Originally copied from minitest/assertions.rb
+ def capture_subprocess_io
+ require "tempfile"
+
+ captured_stdout = Tempfile.new("out")
+ captured_stderr = Tempfile.new("err")
+
+ orig_stdout = $stdout.dup
+ orig_stderr = $stderr.dup
+ $stdout.reopen captured_stdout
+ $stderr.reopen captured_stderr
+
+ yield
+
+ $stdout.rewind
+ $stderr.rewind
+
+ [captured_stdout.read, captured_stderr.read]
+ ensure
+ $stdout.reopen orig_stdout
+ $stderr.reopen orig_stderr
+
+ orig_stdout.close
+ orig_stderr.close
+ captured_stdout.close!
+ captured_stderr.close!
+ end
+
+ ##
+ # Sets the ENABLE_SHARED entry in RbConfig::CONFIG to +value+ and restores
+ # the original value when the block ends
+
+ def enable_shared(value)
+ enable_shared = RbConfig::CONFIG["ENABLE_SHARED"]
+ RbConfig::CONFIG["ENABLE_SHARED"] = value
+
+ yield
+ ensure
+ if enable_shared
+ RbConfig::CONFIG["ENABLE_SHARED"] = enable_shared
+ else
+ RbConfig::CONFIG.delete "ENABLE_SHARED"
+ end
+ end
+
+ ##
+ # Overrides the Gem.install_extension_in_lib function and restores the
+ # original when the block ends
+ #
+ def extension_in_lib(value = true) # :nodoc:
+ Gem.stub(:install_extension_in_lib, value) { yield }
+ end
+
+ ##
+ # Sets the vendordir entry in RbConfig::CONFIG to +value+ and restores the
+ # original value when the block ends
+ #
+ def vendordir(value)
+ vendordir = RbConfig::CONFIG["vendordir"]
+
+ if value
+ RbConfig::CONFIG["vendordir"] = value
+ else
+ RbConfig::CONFIG.delete "vendordir"
+ end
+
+ yield
+ ensure
+ if vendordir
+ RbConfig::CONFIG["vendordir"] = vendordir
+ else
+ RbConfig::CONFIG.delete "vendordir"
+ end
+ end
+
+ ##
+ # Sets the bindir entry in RbConfig::CONFIG to +value+ and restores the
+ # original value when the block ends
+ #
+ def bindir(value)
+ with_clean_path_to_ruby do
+ bindir = RbConfig::CONFIG["bindir"]
+
+ if value
+ RbConfig::CONFIG["bindir"] = value
+ else
+ RbConfig::CONFIG.delete "bindir"
+ end
+
+ begin
+ yield
+ ensure
+ if bindir
+ RbConfig::CONFIG["bindir"] = bindir
+ else
+ RbConfig::CONFIG.delete "bindir"
+ end
+ end
+ end
+ end
+
+ ##
+ # Sets the EXEEXT entry in RbConfig::CONFIG to +value+ and restores the
+ # original value when the block ends
+ #
+ def exeext(value)
+ exeext = RbConfig::CONFIG["EXEEXT"]
+
+ if value
+ RbConfig::CONFIG["EXEEXT"] = value
+ else
+ RbConfig::CONFIG.delete "EXEEXT"
+ end
+
+ yield
+ ensure
+ if exeext
+ RbConfig::CONFIG["EXEEXT"] = exeext
+ else
+ RbConfig::CONFIG.delete "EXEEXT"
+ end
+ end
+
+ def scan_make_command_lines(output)
+ output.scan(/^#{Regexp.escape make_command}(?:[[:blank:]].*)?$/)
+ end
+
+ def parse_make_command_line_targets(line)
+ args = line.sub(/^#{Regexp.escape make_command}/, "").shellsplit
+
+ targets = []
+
+ args.each do |arg|
+ case arg
+ when /\A(\w+)=/
+ else
+ targets << arg
+ end
+ end
+
+ targets << "" if targets.empty?
+
+ targets
+ end
+
+ def assert_contains_make_command(target, output, msg = nil)
+ if output.include?("\n")
+ msg = build_message(msg,
+ format("Expected output containing make command \"%s\", but was \n\nBEGIN_OF_OUTPUT\n%sEND_OF_OUTPUT", format("%s %s", make_command, target).rstrip, output))
+ else
+ msg = build_message(msg,
+ format('Expected make command "%s", but was "%s"', format("%s %s", make_command, target).rstrip, output))
+ end
+
+ assert scan_make_command_lines(output).any? {|line|
+ targets = parse_make_command_line_targets(line)
+
+ if targets.include?(target)
+ true
+ else
+ false
+ end
+ }, msg
+ end
+
+ include Gem::DefaultUserInteraction
+
+ ##
+ # #setup prepares a sandboxed location to install gems. All installs are
+ # directed to a temporary directory. All install plugins are removed.
+ #
+ # If the +RUBY+ environment variable is set the given path is used for
+ # Gem::ruby. The local platform is set to <tt>i386-mswin32</tt> for Windows
+ # or <tt>i686-darwin8.10.1</tt> otherwise.
+
+ def setup
+ @orig_hooks = {}
+ @orig_env = ENV.to_hash
+
+ top_srcdir = __dir__ + "/../.."
+ @tmp = File.expand_path(ENV.fetch("GEM_TEST_TMPDIR", "tmp"), top_srcdir)
+
+ FileUtils.mkdir_p(@tmp, mode: 0o700) # =rwx
+ @tmp = File.realpath(@tmp)
+
+ @tempdir = Dir.mktmpdir("test_rubygems_", @tmp)
+
+ ENV["GEM_VENDOR"] = nil
+ ENV["GEMRC"] = nil
+ ENV["XDG_CACHE_HOME"] = nil
+ ENV["XDG_CONFIG_HOME"] = nil
+ ENV["XDG_DATA_HOME"] = nil
+ ENV["XDG_STATE_HOME"] = nil
+ ENV["SOURCE_DATE_EPOCH"] = nil
+ ENV["BUNDLER_VERSION"] = nil
+ ENV["RUBYGEMS_PREVENT_UPDATE_SUGGESTION"] = "true"
+
+ @current_dir = Dir.pwd
+ @fetcher = nil
+
+ @back_ui = Gem::DefaultUserInteraction.ui
+ @ui = Gem::MockGemUi.new
+ # This needs to be a new instance since we call use_ui(@ui) when we want to
+ # capture output
+ Gem::DefaultUserInteraction.ui = Gem::MockGemUi.new
+
+ @orig_system_wide_config_file = Gem::ConfigFile::SYSTEM_WIDE_CONFIG_FILE
+ Gem::ConfigFile.send :remove_const, :SYSTEM_WIDE_CONFIG_FILE
+ Gem::ConfigFile.send :const_set, :SYSTEM_WIDE_CONFIG_FILE,
+ File.join(@tempdir, "system-gemrc")
+
+ @gemhome = File.join @tempdir, "gemhome"
+ @userhome = File.join @tempdir, "userhome"
+ @statehome = File.join @tempdir, "statehome"
+ ENV["GEM_SPEC_CACHE"] = File.join @tempdir, "spec_cache"
+
+ @orig_ruby = if ENV["RUBY"]
+ ruby = Gem.ruby
+ Gem.ruby = ENV["RUBY"]
+ ruby
+ end
+
+ @git = ENV["GIT"] || "git#{RbConfig::CONFIG["EXEEXT"]}"
+
+ Gem.ensure_gem_subdirectories @gemhome
+ Gem.ensure_default_gem_subdirectories @gemhome
+
+ @orig_load_path = $LOAD_PATH.dup
+ $LOAD_PATH.map! do |s|
+ expand_path = begin
+ File.realpath(s)
+ rescue StandardError
+ File.expand_path(s)
+ end
+ if expand_path != s
+ if s.instance_variable_defined?(:@gem_prelude_index)
+ expand_path.instance_variable_set(:@gem_prelude_index, expand_path)
+ end
+ expand_path.freeze if s.frozen?
+ s = expand_path
+ end
+ s
+ end
+
+ Dir.chdir @tempdir
+
+ ENV["HOME"] = @userhome
+ # Remove "RUBY_CODESIGN", which is used by mkmf-generated Makefile to
+ # sign extension bundles on macOS, to avoid trying to find the specified key
+ # from the fake $HOME/Library/Keychains directory.
+ ENV.delete "RUBY_CODESIGN"
+ Gem.instance_variable_set :@config_file, nil
+ Gem.instance_variable_set :@user_home, nil
+ Gem.instance_variable_set :@config_home, nil
+ Gem.instance_variable_set :@data_home, nil
+ Gem.instance_variable_set :@state_home, @statehome
+ Gem.instance_variable_set :@state_file, nil
+ Gem.instance_variable_set :@gemdeps, nil
+ Gem.instance_variable_set :@env_requirements_by_name, nil
+ Gem.send :remove_instance_variable, :@ruby_version if
+ Gem.instance_variables.include? :@ruby_version
+
+ FileUtils.mkdir_p @userhome
+
+ ENV["GEM_PRIVATE_KEY_PASSPHRASE"] = PRIVATE_KEY_PASSPHRASE
+
+ Gem.instance_variable_set(:@default_specifications_dir, File.join(@gemhome, "specifications", "default"))
+ if Gem.java_platform?
+ @orig_default_gem_home = RbConfig::CONFIG["default_gem_home"]
+ RbConfig::CONFIG["default_gem_home"] = @gemhome
+ else
+ Gem.instance_variable_set(:@default_dir, @gemhome)
+ end
+
+ @orig_bindir = RbConfig::CONFIG["bindir"]
+ RbConfig::CONFIG["bindir"] = File.join @gemhome, "bin"
+
+ @orig_sitelibdir = RbConfig::CONFIG["sitelibdir"]
+ new_sitelibdir = @orig_sitelibdir.sub(RbConfig::CONFIG["prefix"], @gemhome)
+ $LOAD_PATH.insert(Gem.load_path_insert_index, new_sitelibdir)
+ RbConfig::CONFIG["sitelibdir"] = new_sitelibdir
+
+ @orig_mandir = RbConfig::CONFIG["mandir"]
+ RbConfig::CONFIG["mandir"] = File.join @gemhome, "share", "man"
+
+ Gem::Specification.unresolved_deps.clear
+ Gem.use_paths(@gemhome)
+
+ Gem.loaded_specs.clear
+ Gem.instance_variable_set(:@activated_gem_paths, 0)
+ Gem.clear_default_specs
+
+ Gem.configuration.verbose = true
+ Gem.configuration.update_sources = true
+
+ Gem::RemoteFetcher.fetcher = Gem::FakeFetcher.new
+
+ @gem_repo = "http://gems.example.com/"
+ @uri = Gem::URI.parse @gem_repo
+ Gem.sources.replace [@gem_repo]
+
+ Gem.searcher = nil
+ Gem::SpecFetcher.fetcher = nil
+
+ @orig_arch = RbConfig::CONFIG["arch"]
+
+ if Gem.win_platform?
+ util_set_arch "i386-mswin32"
+ else
+ util_set_arch "i686-darwin8.10.1"
+ end
+
+ %w[post_install_hooks done_installing_hooks post_uninstall_hooks pre_uninstall_hooks pre_install_hooks pre_reset_hooks post_reset_hooks post_build_hooks].each do |name|
+ @orig_hooks[name] = Gem.send(name).dup
+ end
+
+ @marshal_version = "#{Marshal::MAJOR_VERSION}.#{Marshal::MINOR_VERSION}"
+ @orig_loaded_features = $LOADED_FEATURES.dup
+ end
+
+ ##
+ # #teardown restores the process to its original state and removes the
+ # tempdir
+
+ def teardown
+ $LOAD_PATH.replace @orig_load_path if @orig_load_path
+ if @orig_loaded_features
+ if @orig_load_path
+ ($LOADED_FEATURES - @orig_loaded_features).each do |feat|
+ $LOADED_FEATURES.delete(feat) if feat.start_with?(@tmp)
+ end
+ else
+ $LOADED_FEATURES.replace @orig_loaded_features
+ end
+ end
+
+ RbConfig::CONFIG["arch"] = @orig_arch
+
+ if defined? Gem::RemoteFetcher
+ Gem::RemoteFetcher.fetcher = nil
+ end
+
+ Dir.chdir @current_dir
+
+ FileUtils.rm_rf @tempdir
+
+ ENV.replace(@orig_env)
+
+ Gem::ConfigFile.send :remove_const, :SYSTEM_WIDE_CONFIG_FILE
+ Gem::ConfigFile.send :const_set, :SYSTEM_WIDE_CONFIG_FILE,
+ @orig_system_wide_config_file
+
+ Gem.ruby = @orig_ruby if @orig_ruby
+
+ RbConfig::CONFIG["mandir"] = @orig_mandir
+ RbConfig::CONFIG["sitelibdir"] = @orig_sitelibdir
+ RbConfig::CONFIG["bindir"] = @orig_bindir
+
+ Gem.instance_variable_set :@default_specifications_dir, nil
+ if Gem.java_platform?
+ RbConfig::CONFIG["default_gem_home"] = @orig_default_gem_home
+ else
+ Gem.instance_variable_set :@default_dir, nil
+ end
+
+ Gem::Specification.unresolved_deps.clear
+ Gem.refresh
+
+ @orig_hooks.each do |name, hooks|
+ Gem.send(name).replace hooks
+ end
+
+ @back_ui.close
+
+ refute_directory_exists @tempdir, "may be still in use"
+ ghosts = @@tempdirs.filter_map do |test_name, tempdir|
+ test_name if File.exist?(tempdir)
+ end
+ @@tempdirs << [method_name, @tempdir]
+ assert_empty ghosts
+ end
+
+ def credential_setup
+ @temp_cred = File.join(@userhome, ".gem", "credentials")
+ FileUtils.mkdir_p File.dirname(@temp_cred)
+ File.write @temp_cred, ":rubygems_api_key: 701229f217cdf23b1344c7b4b54ca97"
+ File.chmod 0o600, @temp_cred
+ end
+
+ def credential_teardown
+ FileUtils.rm_rf @temp_cred
+ end
+
+ def common_installer_setup
+ common_installer_teardown
+
+ Gem.post_build do |installer|
+ @post_build_hook_arg = installer
+ true
+ end
+
+ Gem.post_install do |installer|
+ @post_install_hook_arg = installer
+ end
+
+ Gem.post_uninstall do |uninstaller|
+ @post_uninstall_hook_arg = uninstaller
+ end
+
+ Gem.pre_install do |installer|
+ @pre_install_hook_arg = installer
+ true
+ end
+
+ Gem.pre_uninstall do |uninstaller|
+ @pre_uninstall_hook_arg = uninstaller
+ end
+ end
+
+ def common_installer_teardown
+ Gem.post_build_hooks.clear
+ Gem.post_install_hooks.clear
+ Gem.done_installing_hooks.clear
+ Gem.post_reset_hooks.clear
+ Gem.post_uninstall_hooks.clear
+ Gem.pre_install_hooks.clear
+ Gem.pre_reset_hooks.clear
+ Gem.pre_uninstall_hooks.clear
+ end
+
+ def without_any_upwards_gemfiles
+ ENV["BUNDLE_GEMFILE"] = File.join(@tempdir, "Gemfile")
+ end
+
+ ##
+ # A git_gem is used with a gem dependencies file. The gem created here
+ # has no files, just a gem specification for the given +name+ and +version+.
+ #
+ # Yields the +specification+ to the block, if given
+
+ def git_gem(name = "a", version = 1)
+ have_git?
+
+ directory = File.join "git", name
+ directory = File.expand_path directory
+
+ git_spec = Gem::Specification.new name, version do |specification|
+ yield specification if block_given?
+ end
+
+ FileUtils.mkdir_p directory
+
+ gemspec = "#{name}.gemspec"
+
+ File.open File.join(directory, gemspec), "w" do |io|
+ io.write git_spec.to_ruby
+ end
+
+ head = nil
+
+ Dir.chdir directory do
+ unless File.exist? ".git"
+ system @git, "init", "--quiet"
+ system @git, "config", "user.name", "RubyGems Tests"
+ system @git, "config", "user.email", "rubygems@example"
+ end
+
+ system @git, "add", gemspec
+ system @git, "commit", "-a", "-m", "a non-empty commit message", "--quiet"
+ head = Gem::Util.popen(@git, "rev-parse", "HEAD").strip
+ end
+
+ [name, git_spec.version, directory, head]
+ end
+
+ ##
+ # Skips this test unless you have a git executable
+
+ def have_git?
+ return if in_path? @git
+
+ pend "cannot find git executable, use GIT environment variable to set"
+ end
+
+ def in_path?(executable) # :nodoc:
+ return true if %r{\A([A-Z]:|/)}.match?(executable) && File.exist?(executable)
+
+ ENV["PATH"].split(File::PATH_SEPARATOR).any? do |directory|
+ File.exist? File.join directory, executable
+ end
+ end
+
+ ##
+ # Builds and installs the Gem::Specification +spec+
+
+ def install_gem(spec, options = {})
+ require "rubygems/installer"
+
+ gem = spec.cache_file
+
+ unless File.exist? gem
+ use_ui Gem::MockGemUi.new do
+ Dir.chdir @tempdir do
+ Gem::Package.build spec
+ end
+ end
+
+ gem = File.join(@tempdir, File.basename(gem))
+ end
+
+ Gem::Installer.at(gem, options.merge({ wrappers: true })).install
+ end
+
+ ##
+ # Builds and installs the Gem::Specification +spec+ into the user dir
+
+ def install_gem_user(spec)
+ install_gem spec, user_install: true
+ end
+
+ ##
+ # Uninstalls the Gem::Specification +spec+
+ def uninstall_gem(spec)
+ require "rubygems/uninstaller"
+
+ Class.new(Gem::Uninstaller) do
+ def ask_if_ok(spec)
+ true
+ end
+ end.new(spec.name, executables: true, user_install: true).uninstall
+ end
+
+ ##
+ # Enables pretty-print for all tests
+
+ def mu_pp(obj)
+ s = String.new
+ s = PP.pp obj, s
+ s = s.force_encoding(Encoding.default_external)
+ s.chomp
+ end
+
+ ##
+ # Reads a Marshal file at +path+
+
+ def read_cache(path)
+ File.open path.dup, "rb" do |io|
+ Marshal.load io.read
+ end
+ end
+
+ ##
+ # Reads a binary file at +path+
+
+ def read_binary(path)
+ Gem.read_binary path
+ end
+
+ ##
+ # Writes a binary file to +path+ which is relative to +@gemhome+
+
+ def write_file(path)
+ path = File.join @gemhome, path unless Pathname.new(path).absolute?
+ dir = File.dirname path
+ FileUtils.mkdir_p dir unless File.directory? dir
+
+ File.open path, "wb" do |io|
+ yield io if block_given?
+ end
+
+ path
+ end
+
+ ##
+ # Load a YAML string, the psych 3 way
+
+ def load_yaml(yaml)
+ if Psych.respond_to?(:unsafe_load)
+ Psych.unsafe_load(yaml)
+ else
+ Psych.load(yaml)
+ end
+ end
+
+ ##
+ # Load a YAML file, the psych 3 way
+
+ def load_yaml_file(file)
+ require "rubygems/config_file"
+ Gem::ConfigFile.load_with_rubygems_config_hash(File.read(file))
+ end
+
+ def all_spec_names
+ Gem::Specification.map(&:full_name)
+ end
+
+ ##
+ # Creates a Gem::Specification with a minimum of extra work. +name+ and
+ # +version+ are the gem's name and version, platform, author, email,
+ # homepage, summary and description are defaulted. The specification is
+ # yielded for customization.
+ #
+ # The gem is added to the installed gems in +@gemhome+ and the runtime.
+ #
+ # Use this with #write_file to build an installed gem.
+
+ def quick_gem(name, version="2")
+ require "rubygems/specification"
+
+ spec = Gem::Specification.new do |s|
+ s.platform = Gem::Platform::RUBY
+ s.name = name
+ s.version = version
+ s.author = "A User"
+ s.email = "example@example.com"
+ s.homepage = "http://example.com"
+ s.summary = "this is a summary"
+ s.description = "This is a test description"
+
+ yield(s) if block_given?
+ end
+
+ written_path = write_file spec.spec_file do |io|
+ io.write spec.to_ruby_for_cache
+ end
+
+ spec.loaded_from = written_path
+
+ Gem::Specification.reset
+
+ spec
+ end
+
+ ##
+ # Builds a gem from +spec+ and places it in <tt>File.join @gemhome,
+ # 'cache'</tt>. Automatically creates files based on +spec.files+
+
+ def util_build_gem(spec)
+ dir = spec.gem_dir
+ FileUtils.mkdir_p dir
+
+ Dir.chdir dir do
+ spec.files.each do |file|
+ next if File.exist? file
+ FileUtils.mkdir_p File.dirname(file)
+
+ File.open file, "w" do |fp|
+ fp.puts "# #{file}"
+ end
+ end
+
+ use_ui Gem::MockGemUi.new do
+ Gem::Package.build spec
+ end
+
+ cache = spec.cache_file
+ FileUtils.mv File.basename(cache), cache
+ end
+ end
+
+ def util_remove_gem(spec)
+ FileUtils.rm_rf spec.cache_file
+ FileUtils.rm_rf spec.spec_file
+ end
+
+ ##
+ # Removes all installed gems from +@gemhome+.
+
+ def util_clear_gems
+ FileUtils.rm_rf File.join(@gemhome, "gems")
+ FileUtils.mkdir File.join(@gemhome, "gems")
+ FileUtils.rm_rf File.join(@gemhome, "specifications")
+ FileUtils.mkdir File.join(@gemhome, "specifications")
+ Gem::Specification.reset
+ end
+
+ ##
+ # Install the provided specs
+
+ def install_specs(*specs)
+ specs.each do |spec|
+ Gem::Installer.for_spec(spec, force: true).install
+ end
+
+ Gem.searcher = nil
+ end
+
+ ##
+ # Installs the provided default specs including writing the spec file
+
+ def install_default_gems(*specs)
+ specs.each do |spec|
+ installer = Gem::Installer.for_spec(spec, install_as_default: true)
+ installer.install
+ Gem.register_default_spec(spec)
+ end
+ end
+
+ def loaded_spec_names
+ Gem.loaded_specs.values.map(&:full_name).sort
+ end
+
+ def unresolved_names
+ Gem::Specification.unresolved_deps.values.map(&:to_s).sort
+ end
+
+ def new_default_spec(name, version, deps = nil, *files)
+ spec = util_spec name, version, deps
+
+ spec.loaded_from = File.join(@gemhome, "specifications", "default", spec.spec_name)
+ spec.files = files
+
+ lib_dir = File.join(@tempdir, "default_gems", "lib")
+ lib_dir.instance_variable_set(:@gem_prelude_index, lib_dir)
+ Gem.instance_variable_set(:@default_gem_load_paths, [*Gem.send(:default_gem_load_paths), lib_dir])
+ $LOAD_PATH.unshift(lib_dir)
+ files.each do |file|
+ rb_path = File.join(lib_dir, file)
+ FileUtils.mkdir_p(File.dirname(rb_path))
+ File.open(rb_path, "w") do |rb|
+ rb << "# #{file}"
+ end
+ end
+
+ spec
+ end
+
+ ##
+ # Creates a spec with +name+, +version+. +deps+ can specify the dependency
+ # or a +block+ can be given for full customization of the specification.
+
+ def util_spec(name, version = 2, deps = nil, *files) # :yields: specification
+ raise "deps or block, not both" if deps && block_given?
+
+ spec = Gem::Specification.new do |s|
+ s.platform = Gem::Platform::RUBY
+ s.name = name
+ s.version = version
+ s.author = "A User"
+ s.email = "example@example.com"
+ s.homepage = "http://example.com"
+ s.summary = "this is a summary"
+ s.description = "This is a test description"
+
+ s.files.push(*files) unless files.empty?
+
+ yield s if block_given?
+ end
+
+ if deps
+ deps.keys.each do |n|
+ spec.add_dependency n, (deps[n] || ">= 0")
+ end
+ end
+
+ unless files.empty?
+ write_file spec.spec_file do |io|
+ io.write spec.to_ruby_for_cache
+ end
+
+ util_build_gem spec
+
+ FileUtils.rm spec.spec_file
+ end
+
+ spec
+ end
+
+ ##
+ # Creates a gem with +name+, +version+ and +deps+. The specification will
+ # be yielded before gem creation for customization. The gem will be placed
+ # in <tt>File.join @tempdir, 'gems'</tt>. The specification and .gem file
+ # location are returned.
+
+ def util_gem(name, version, deps = nil, &block)
+ if deps
+ block = proc do |s|
+ deps.keys.each do |n|
+ s.add_dependency n, (deps[n] || ">= 0")
+ end
+ end
+ end
+
+ spec = quick_gem(name, version, &block)
+
+ util_build_gem spec
+
+ cache_file = File.join @tempdir, "gems", "#{spec.original_name}.gem"
+ FileUtils.mkdir_p File.dirname cache_file
+ FileUtils.mv spec.cache_file, cache_file
+ FileUtils.rm spec.spec_file
+
+ spec.loaded_from = nil
+
+ [spec, cache_file]
+ end
+
+ ##
+ # Gzips +data+.
+
+ def util_gzip(data)
+ out = StringIO.new
+
+ Zlib::GzipWriter.wrap out do |io|
+ io.write data
+ end
+
+ out.string
+ end
+
+ ##
+ # Creates several default gems which all have a lib/code.rb file. The gems
+ # are not installed but are available in the cache dir.
+ #
+ # +@a1+:: gem a version 1, this is the best-described gem.
+ # +@a2+:: gem a version 2
+ # +@a3a:: gem a version 3.a
+ # +@a_evil9+:: gem a_evil version 9, use this to ensure similarly-named gems
+ # don't collide with a.
+ # +@b2+:: gem b version 2
+ # +@c1_2+:: gem c version 1.2
+ # +@pl1+:: gem pl version 1, this gem has a legacy platform of i386-linux.
+ #
+ # Additional +prerelease+ gems may also be created:
+ #
+ # +@a2_pre+:: gem a version 2.a
+ # TODO: nuke this and fix tests. this should speed up a lot
+
+ def util_make_gems(prerelease = false)
+ @a1 = quick_gem "a", "1" do |s|
+ s.files = %w[lib/code.rb]
+ s.require_paths = %w[lib]
+ s.date = Gem::Specification::TODAY - 86_400
+ s.homepage = "http://a.example.com"
+ s.email = %w[example@example.com example2@example.com]
+ s.authors = %w[Example Example2]
+ s.description = <<-DESC
+This line is really, really long. So long, in fact, that it is more than eighty characters long! The purpose of this line is for testing wrapping behavior because sometimes people don't wrap their text to eighty characters. Without the wrapping, the text might not look good in the RSS feed.
+
+Also, a list:
+ * An entry that\'s actually kind of sort
+ * an entry that\'s really long, which will probably get wrapped funny. That's ok, somebody wasn't thinking straight when they made it more than eighty characters.
+ DESC
+ end
+
+ init = proc do |s|
+ s.files = %w[lib/code.rb]
+ s.require_paths = %w[lib]
+ end
+
+ @a2 = quick_gem("a", "2", &init)
+ @a3a = quick_gem("a", "3.a", &init)
+ @a_evil9 = quick_gem("a_evil", "9", &init)
+ @b2 = quick_gem("b", "2", &init)
+ @c1_2 = quick_gem("c", "1.2", &init)
+ @x = quick_gem("x", "1", &init)
+ @dep_x = quick_gem("dep_x", "1") do |s|
+ s.files = %w[lib/code.rb]
+ s.require_paths = %w[lib]
+ s.add_dependency "x", ">= 1"
+ end
+
+ @pl1 = quick_gem "pl", "1" do |s| # l for legacy
+ s.files = %w[lib/code.rb]
+ s.require_paths = %w[lib]
+ s.platform = Gem::Platform.new "i386-linux"
+ s.instance_variable_set :@original_platform, "i386-linux"
+ end
+
+ if prerelease
+ @a2_pre = quick_gem("a", "2.a", &init)
+ write_file File.join(*%W[gems #{@a2_pre.original_name} lib code.rb])
+ util_build_gem @a2_pre
+ end
+
+ write_file File.join(*%W[gems #{@a1.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@a2.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@a3a.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@a_evil9.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@b2.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@c1_2.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@pl1.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@x.original_name} lib code.rb])
+ write_file File.join(*%W[gems #{@dep_x.original_name} lib code.rb])
+
+ [@a1, @a2, @a3a, @a_evil9, @b2, @c1_2, @pl1, @x, @dep_x].each do |spec|
+ util_build_gem spec
+ end
+
+ FileUtils.rm_r File.join(@gemhome, "gems", @pl1.original_name)
+ end
+
+ ##
+ # Set the platform to +arch+
+
+ def util_set_arch(arch)
+ RbConfig::CONFIG["arch"] = arch
+ platform = Gem::Platform.new arch
+
+ Gem.instance_variable_set :@platforms, nil
+ Gem::Platform.instance_variable_set :@local, nil
+
+ yield if block_given?
+
+ platform
+ end
+
+ ##
+ # Add +spec+ to +@fetcher+ serving the data in the file +path+.
+ # +repo+ indicates which repo to make +spec+ appear to be in.
+
+ def add_to_fetcher(spec, path=nil, repo=@gem_repo)
+ path ||= spec.cache_file
+ @fetcher.data["#{@gem_repo}gems/#{spec.file_name}"] = read_binary(path)
+ end
+
+ ##
+ # Sets up Gem::SpecFetcher to return information from the gems in +specs+.
+
+ def util_setup_spec_fetcher(*specs)
+ all_specs = Gem::Specification.to_a + specs
+ Gem::Specification._resort! all_specs
+
+ spec_fetcher = Gem::SpecFetcher.fetcher
+
+ prerelease, all = all_specs.partition {|spec| spec.version.prerelease? }
+ latest = Gem::Specification._latest_specs all_specs
+
+ spec_fetcher.specs[@uri] = []
+ all.each do |spec|
+ spec_fetcher.specs[@uri] << spec.name_tuple
+ end
+
+ spec_fetcher.latest_specs[@uri] = []
+ latest.each do |spec|
+ spec_fetcher.latest_specs[@uri] << spec.name_tuple
+ end
+
+ spec_fetcher.prerelease_specs[@uri] = []
+ prerelease.each do |spec|
+ spec_fetcher.prerelease_specs[@uri] << spec.name_tuple
+ end
+
+ # HACK: for test_download_to_cache
+ unless Gem::RemoteFetcher === @fetcher
+ v = Gem.marshal_version
+
+ specs = all.map(&:name_tuple)
+ s_zip = util_gzip Marshal.dump Gem::NameTuple.to_basic specs
+
+ latest_specs = latest.map(&:name_tuple)
+
+ l_zip = util_gzip Marshal.dump Gem::NameTuple.to_basic latest_specs
+
+ prerelease_specs = prerelease.map(&:name_tuple)
+ p_zip = util_gzip Marshal.dump Gem::NameTuple.to_basic prerelease_specs
+
+ @fetcher.data["#{@gem_repo}specs.#{v}.gz"] = s_zip
+ @fetcher.data["#{@gem_repo}latest_specs.#{v}.gz"] = l_zip
+ @fetcher.data["#{@gem_repo}prerelease_specs.#{v}.gz"] = p_zip
+
+ write_marshalled_gemspecs(*all_specs)
+ end
+
+ nil # force errors
+ end
+
+ def write_marshalled_gemspecs(*all_specs)
+ v = Gem.marshal_version
+
+ all_specs.each do |spec|
+ path = "#{@gem_repo}quick/Marshal.#{v}/#{spec.original_name}.gemspec.rz"
+ data = Marshal.dump spec
+ data_deflate = Zlib::Deflate.deflate data
+ @fetcher.data[path] = data_deflate
+ end
+ end
+
+ ##
+ # Deflates +data+
+
+ def util_zip(data)
+ Zlib::Deflate.deflate data
+ end
+
+ def util_set_RUBY_VERSION(version, patchlevel, revision, description, engine = "ruby", engine_version = nil)
+ if Gem.instance_variables.include? :@ruby_version
+ Gem.send :remove_instance_variable, :@ruby_version
+ end
+
+ @ruby_version = RUBY_VERSION
+ @ruby_patchlevel = RUBY_PATCHLEVEL
+ @ruby_revision = RUBY_REVISION
+ @ruby_description = RUBY_DESCRIPTION
+ @ruby_engine = RUBY_ENGINE
+ @ruby_engine_version = RUBY_ENGINE_VERSION
+
+ util_clear_RUBY_VERSION
+
+ Object.const_set :RUBY_VERSION, version
+ Object.const_set :RUBY_PATCHLEVEL, patchlevel
+ Object.const_set :RUBY_REVISION, revision
+ Object.const_set :RUBY_DESCRIPTION, description
+ Object.const_set :RUBY_ENGINE, engine
+ Object.const_set :RUBY_ENGINE_VERSION, engine_version
+ end
+
+ def util_restore_RUBY_VERSION
+ util_clear_RUBY_VERSION
+
+ Object.const_set :RUBY_VERSION, @ruby_version
+ Object.const_set :RUBY_PATCHLEVEL, @ruby_patchlevel
+ Object.const_set :RUBY_REVISION, @ruby_revision
+ Object.const_set :RUBY_DESCRIPTION, @ruby_description
+ Object.const_set :RUBY_ENGINE, @ruby_engine
+ Object.const_set :RUBY_ENGINE_VERSION, @ruby_engine_version
+ end
+
+ def util_clear_RUBY_VERSION
+ Object.send :remove_const, :RUBY_VERSION
+ Object.send :remove_const, :RUBY_PATCHLEVEL
+ Object.send :remove_const, :RUBY_REVISION
+ Object.send :remove_const, :RUBY_DESCRIPTION
+ Object.send :remove_const, :RUBY_ENGINE
+ Object.send :remove_const, :RUBY_ENGINE_VERSION
+ end
+
+ ##
+ # Returns whether or not we're on a version of Ruby built with VC++ (or
+ # Borland) versus Cygwin, Mingw, etc.
+
+ def self.vc_windows?
+ RUBY_PLATFORM.match("mswin")
+ end
+
+ ##
+ # see ::vc_windows?
+
+ def vc_windows?
+ self.class.vc_windows?
+ end
+
+ ##
+ # Is this test being run on a version of Ruby built with mingw?
+
+ def mingw_windows?
+ RUBY_PLATFORM.match("mingw")
+ end
+
+ ##
+ # Is this test being run on a ruby/ruby repository?
+ #
+
+ def ruby_repo?
+ !ENV["GEM_COMMAND"].nil?
+ end
+
+ ##
+ # Returns the make command for the current platform. For versions of Ruby
+ # built on MS Windows with VC++ or Borland it will return 'nmake'. On all
+ # other platforms, including Cygwin, it will return 'make'.
+
+ def make_command
+ ENV["make"] || ENV["MAKE"] || (vc_windows? ? "nmake" : "make")
+ end
+
+ ##
+ # Returns whether or not the nmake command could be found.
+
+ def nmake_found?
+ system("nmake /? 1>NUL 2>&1")
+ end
+
+ # In case we're building docs in a background process, this method waits for
+ # that process to exit (or if it's already been reaped, or never happened,
+ # swallows the Errno::ECHILD error).
+ def wait_for_child_process_to_exit
+ Process.wait if Process.respond_to?(:fork)
+ rescue Errno::ECHILD
+ end
+
+ ##
+ # Allows the proper version of +rake+ to be used for the test.
+
+ def build_rake_in(good=true)
+ gem_ruby = Gem.ruby
+ Gem.ruby = self.class.rubybin
+ env_rake = ENV["rake"]
+ rake = (good ? @@good_rake : @@bad_rake)
+ ENV["rake"] = rake
+ yield rake
+ ensure
+ Gem.ruby = gem_ruby
+ if env_rake
+ ENV["rake"] = env_rake
+ else
+ ENV.delete("rake")
+ end
+ end
+
+ ##
+ # Finds the path to the Ruby executable
+
+ def self.rubybin
+ ruby = ENV["RUBY"]
+ return ruby if ruby
+ ruby = "ruby"
+ rubyexe = "#{ruby}#{RbConfig::CONFIG["EXEEXT"]}"
+
+ 3.times do
+ if File.exist?(ruby) && File.executable?(ruby) && !File.directory?(ruby)
+ return File.expand_path(ruby)
+ end
+ if File.exist?(rubyexe) && File.executable?(rubyexe)
+ return File.expand_path(rubyexe)
+ end
+ ruby = File.join("..", ruby)
+ end
+
+ begin
+ Gem.ruby
+ rescue LoadError
+ "ruby"
+ end
+ end
+
+ def ruby_with_rubygems_in_load_path
+ [Gem.ruby, "-I", rubygems_path]
+ end
+
+ def rubygems_path
+ $LOAD_PATH.find {|p| p == File.dirname($LOADED_FEATURES.find {|f| f.end_with?("/rubygems.rb") }) }
+ end
+
+ def bundler_path
+ $LOAD_PATH.find {|p| p == File.dirname($LOADED_FEATURES.find {|f| f.end_with?("/bundler.rb") }) }
+ end
+
+ def with_clean_path_to_ruby
+ orig_ruby = Gem.ruby
+
+ Gem.instance_variable_set :@ruby, nil
+
+ yield
+ ensure
+ Gem.instance_variable_set :@ruby, orig_ruby
+ end
+
+ def with_internal_encoding(encoding)
+ int_enc = Encoding.default_internal
+ silence_warnings { Encoding.default_internal = encoding }
+
+ yield
+ ensure
+ silence_warnings { Encoding.default_internal = int_enc }
+ end
+
+ def silence_warnings
+ old_verbose = $VERBOSE
+ $VERBOSE = false
+ yield
+ ensure
+ $VERBOSE = old_verbose
+ end
+
+ # :nodoc:
+ ##
+ # Return the join path, with escaping backticks, dollars, and
+ # double-quotes. Unlike `shellescape`, equal-sign is not escaped.
+
+ def self.escape_path(*path)
+ path = File.join(*path)
+ if %r{\A[-+:/=@,.\w]+\z}.match?(path)
+ path
+ else
+ "\"#{path.gsub(/[`$"]/, '\\&')}\""
+ end
+ end
+
+ @@good_rake = "#{rubybin} #{escape_path(__dir__, "good_rake.rb")}"
+ @@bad_rake = "#{rubybin} #{escape_path(__dir__, "bad_rake.rb")}"
+
+ ##
+ # Construct a new Gem::Dependency.
+
+ def dep(name, *requirements)
+ Gem::Dependency.new name, *requirements
+ end
+
+ ##
+ # Constructs a Gem::Resolver::DependencyRequest from a
+ # Gem::Dependency +dep+, a +from_name+ and +from_version+ requesting the
+ # dependency and a +parent+ DependencyRequest
+
+ def dependency_request(dep, from_name, from_version, parent = nil)
+ remote = Gem::Source.new @uri
+
+ unless parent
+ parent_dep = dep from_name, from_version
+ parent = Gem::Resolver::DependencyRequest.new parent_dep, nil
+ end
+
+ spec = Gem::Resolver::IndexSpecification.new \
+ nil, from_name, from_version, remote, Gem::Platform::RUBY
+ activation = Gem::Resolver::ActivationRequest.new spec, parent
+
+ Gem::Resolver::DependencyRequest.new dep, activation
+ end
+
+ ##
+ # Constructs a new Gem::Requirement.
+
+ def req(*requirements)
+ return requirements.first if Gem::Requirement === requirements.first
+ Gem::Requirement.create requirements
+ end
+
+ ##
+ # Constructs a new Gem::Specification.
+
+ def spec(name, version, &block)
+ Gem::Specification.new name, v(version), &block
+ end
+
+ ##
+ # Creates a SpecFetcher pre-filled with the gems or specs defined in the
+ # block.
+ #
+ # Yields a +fetcher+ object that responds to +spec+ and +gem+. +spec+ adds
+ # a specification to the SpecFetcher while +gem+ adds both a specification
+ # and the gem data to the RemoteFetcher so the built gem can be downloaded.
+ #
+ # If only the a-3 gem is supposed to be downloaded you can save setup
+ # time by creating only specs for the other versions:
+ #
+ # spec_fetcher do |fetcher|
+ # fetcher.spec 'a', 1
+ # fetcher.spec 'a', 2, 'b' => 3 # dependency on b = 3
+ # fetcher.gem 'a', 3 do |spec|
+ # # spec is a Gem::Specification
+ # # ...
+ # end
+ # end
+
+ def spec_fetcher(repository = @gem_repo)
+ Gem::TestCase::SpecFetcherSetup.declare self, repository do |spec_fetcher_setup|
+ yield spec_fetcher_setup if block_given?
+ end
+ end
+
+ ##
+ # Construct a new Gem::Version.
+
+ def v(string)
+ Gem::Version.create string
+ end
+
+ ##
+ # A vendor_gem is used with a gem dependencies file. The gem created here
+ # has no files, just a gem specification for the given +name+ and +version+.
+ #
+ # Yields the +specification+ to the block, if given
+
+ def vendor_gem(name = "a", version = 1, &block)
+ directory = File.join "vendor", name
+
+ FileUtils.mkdir_p directory
+
+ save_gemspec name, version, directory, &block
+ end
+
+ ##
+ # create_gemspec creates gem specification in given +directory+ or '.'
+ # for the given +name+ and +version+.
+ #
+ # Yields the +specification+ to the block, if given
+
+ def save_gemspec(name = "a", version = 1, directory = ".")
+ vendor_spec = Gem::Specification.new name, version do |specification|
+ yield specification if block_given?
+ end
+
+ File.open File.join(directory, "#{name}.gemspec"), "w" do |io|
+ io.write vendor_spec.to_ruby
+ end
+
+ [name, vendor_spec.version, directory]
+ end
+
+ ##
+ # The StaticSet is a static set of gem specifications used for testing only.
+ # It is available by requiring Gem::TestCase.
+
+ class StaticSet < Gem::Resolver::Set
+ ##
+ # A StaticSet ignores remote because it has a fixed set of gems.
+
+ attr_accessor :remote
+
+ ##
+ # Creates a new StaticSet for the given +specs+
+
+ def initialize(specs)
+ super()
+
+ @specs = specs
+
+ @remote = true
+ end
+
+ ##
+ # Adds +spec+ to this set.
+
+ def add(spec)
+ @specs << spec
+ end
+
+ ##
+ # Finds +dep+ in this set.
+
+ def find_spec(dep)
+ @specs.reverse_each do |s|
+ return s if dep.matches_spec? s
+ end
+ end
+
+ ##
+ # Finds all gems matching +dep+ in this set.
+
+ def find_all(dep)
+ @specs.find_all {|s| dep.match? s, @prerelease }
+ end
+
+ ##
+ # Loads a Gem::Specification from this set which has the given +name+,
+ # version +ver+, +platform+. The +source+ is ignored.
+
+ def load_spec(name, ver, platform, source)
+ dep = Gem::Dependency.new name, ver
+ spec = find_spec dep
+
+ Gem::Specification.new spec.name, spec.version do |s|
+ s.platform = spec.platform
+ end
+ end
+
+ def prefetch(reqs) # :nodoc:
+ end
+ end
+
+ ##
+ # Loads certificate named +cert_name+ from <tt>test/rubygems/</tt>.
+
+ def self.load_cert(cert_name)
+ cert_file = cert_path cert_name
+
+ cert = File.read cert_file
+
+ OpenSSL::X509::Certificate.new cert
+ end
+
+ ##
+ # Returns the path to the certificate named +cert_name+ from
+ # <tt>test/rubygems/</tt>.
+
+ def self.cert_path(cert_name)
+ if begin
+ Time.at(2**32)
+ rescue StandardError
+ 32
+ end == 32
+ cert_file = "#{__dir__}/#{cert_name}_cert_32.pem"
+
+ return cert_file if File.exist? cert_file
+ end
+
+ "#{__dir__}/#{cert_name}_cert.pem"
+ end
+
+ ##
+ # Loads a private key named +key_name+ with +passphrase+ in <tt>test/rubygems/</tt>
+
+ def self.load_key(key_name, passphrase = nil)
+ key_file = key_path key_name
+
+ key = File.read key_file
+
+ OpenSSL::PKey.read key, passphrase
+ end
+
+ ##
+ # Returns the path to the key named +key_name+ from <tt>test/rubygems</tt>
+
+ def self.key_path(key_name)
+ "#{__dir__}/#{key_name}_key.pem"
+ end
+
+ # :stopdoc:
+ # only available in RubyGems tests
+
+ PRIVATE_KEY_PASSPHRASE = "Foo bar"
+
+ begin
+ PRIVATE_KEY = load_key "private"
+ PRIVATE_KEY_PATH = key_path "private"
+
+ # ENCRYPTED_PRIVATE_KEY is PRIVATE_KEY encrypted with PRIVATE_KEY_PASSPHRASE
+ ENCRYPTED_PRIVATE_KEY = load_key "encrypted_private", PRIVATE_KEY_PASSPHRASE
+ ENCRYPTED_PRIVATE_KEY_PATH = key_path "encrypted_private"
+
+ PUBLIC_KEY = PRIVATE_KEY.public_key
+
+ PUBLIC_CERT = load_cert "public"
+ PUBLIC_CERT_PATH = cert_path "public"
+ rescue Errno::ENOENT
+ PRIVATE_KEY = nil
+ PUBLIC_KEY = nil
+ PUBLIC_CERT = nil
+ end if Gem::HAVE_OPENSSL
+end
+
+# https://github.com/seattlerb/minitest/blob/13c48a03d84a2a87855a4de0c959f96800100357/lib/minitest/mock.rb#L192
+class Object
+ def stub(name, val_or_callable, *block_args)
+ new_name = "__minitest_stub__#{name}"
+
+ metaclass = class << self; self; end
+
+ if respond_to?(name) && !methods.map(&:to_s).include?(name.to_s)
+ metaclass.send :define_method, name do |*args|
+ super(*args)
+ end
+ end
+
+ metaclass.send :alias_method, new_name, name
+
+ metaclass.send :define_method, name do |*args, &blk|
+ if val_or_callable.respond_to? :call
+ val_or_callable.call(*args, &blk)
+ else
+ blk&.call(*block_args)
+ val_or_callable
+ end
+ end
+
+ metaclass.send(:ruby2_keywords, name) if metaclass.respond_to?(:ruby2_keywords, true)
+
+ yield self
+ ensure
+ metaclass.send :undef_method, name
+ metaclass.send :alias_method, name, new_name
+ metaclass.send :undef_method, new_name
+ end unless method_defined?(:stub) # lib/resolv/test_dns.rb also has the same method definition
+end
+
+require_relative "utilities"