JezK

Edit File: test_case.rb

# frozen_string_literal: true
# TODO: $SAFE = 1

begin
  gem 'minitest', '~> 4.0'
rescue NoMethodError, Gem::LoadError
  # for ruby tests
end

if defined? Gem::QuickLoader
  Gem::QuickLoader.load_full_rubygems_library
else
  require 'rubygems'
end

begin
  gem 'minitest'
rescue Gem::LoadError
end

# We have to load these up front because otherwise we'll try to load
# them while we're testing rubygems, and thus we can't actually load them.
unless Gem::Dependency.new('rdoc', '>= 3.10').matching_specs.empty?
  gem 'rdoc'
  gem 'json'
end

require 'minitest/autorun'

require 'rubygems/deprecate'

require 'fileutils'
require 'pathname'
require 'pp'
require 'rubygems/package'
require 'shellwords'
require 'tmpdir'
require 'uri'
require 'zlib'
require 'benchmark' # stdlib
require 'rubygems/mock_gem_ui'

module Gem

##
  # Allows setting the gem path searcher.  This method is available when
  # requiring 'rubygems/test_case'

def self.searcher=(searcher)
    @searcher = searcher
  end

##
  # Allows toggling Windows behavior.  This method is available when requiring
  # 'rubygems/test_case'

def self.win_platform=(val)
    @@win_platform = val
  end

##
  # Allows setting path to Ruby.  This method is available when requiring
  # 'rubygems/test_case'

def self.ruby= ruby
    @ruby = ruby
  end

##
  # When rubygems/test_case is required the default user interaction is a
  # MockGemUi.

module DefaultUserInteraction
    @ui = Gem::MockGemUi.new
  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.
#
# Tests are always run at a safe level of 1.

class Gem::TestCase < MiniTest::Unit::TestCase

attr_accessor :fetcher # :nodoc:

attr_accessor :gem_repo # :nodoc:

attr_accessor :uri # :nodoc:

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

# TODO: move to minitest
  def assert_path_exists path, msg = nil
    msg = message(msg) { "Expected path '#{path}' to exist" }
    assert File.exist?(path), msg
  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 then
      RbConfig::CONFIG['enable_shared'] = enable_shared
    else
      RbConfig::CONFIG.delete 'enable_shared'
    end
  end

# TODO: move to minitest
  def refute_path_exists path, msg = nil
    msg = message(msg) { "Expected path '#{path}' to not exist" }
    refute File.exist?(path), msg
  end

def scan_make_command_lines(output)
    output.scan(/^#{Regexp.escape make_command}(?:[[:blank:]].*)?$/)
  end

def parse_make_command_line(line)
    command, *args = line.shellsplit

targets = []
    macros = {}

args.each do |arg|
      case arg
      when /\A(\w+)=/
        macros[$1] = $'
      else
        targets << arg
      end
    end

targets << '' if targets.empty?

{
      :command => command,
      :targets => targets,
      :macros => macros,
    }
  end

def assert_contains_make_command(target, output, msg = nil)
    if output.match(/\n/)
      msg = message(msg) {
        'Expected output containing make command "%s": %s' % [
          ('%s %s' % [make_command, target]).rstrip,
          output.inspect
        ]
      }
    else
      msg = message(msg) {
        'Expected make command "%s": %s' % [
          ('%s %s' % [make_command, target]).rstrip,
          output.inspect
        ]
      }
    end

assert scan_make_command_lines(output).any? { |line|
      make = parse_make_command_line(line)

if make[:targets].include?(target)
        yield make, line if block_given?
        true
      else
        false
      end
    }, msg
  end

include Gem::DefaultUserInteraction

undef_method :default_test if instance_methods.include? 'default_test' or
                                instance_methods.include? :default_test

@@project_dir = Dir.pwd.untaint unless defined?(@@project_dir)

@@initial_reset = false

##
  # #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.
  #
  # If the +KEEP_FILES+ environment variable is set the files will not be
  # removed from <tt>/tmp/test_rubygems_#{$$}.#{Time.now.to_i}</tt>.

def setup
    super

@orig_gem_home   = ENV['GEM_HOME']
    @orig_gem_path   = ENV['GEM_PATH']
    @orig_gem_vendor = ENV['GEM_VENDOR']
    @orig_gem_spec_cache = ENV['GEM_SPEC_CACHE']
    @orig_rubygems_gemdeps = ENV['RUBYGEMS_GEMDEPS']
    @orig_rubygems_host = ENV['RUBYGEMS_HOST']

ENV['GEM_VENDOR'] = nil

@current_dir = Dir.pwd
    @fetcher     = nil
    @ui          = Gem::MockGemUi.new

tmpdir = File.expand_path Dir.tmpdir
    tmpdir.untaint

if ENV['KEEP_FILES'] then
      @tempdir = File.join(tmpdir, "test_rubygems_#{$$}.#{Time.now.to_i}")
    else
      @tempdir = File.join(tmpdir, "test_rubygems_#{$$}")
    end
    @tempdir.untaint

FileUtils.mkdir_p @tempdir

# This makes the tempdir consistent on OS X.
    # File.expand_path Dir.tmpdir                      #=> "/var/..."
    # Dir.chdir Dir.tmpdir do File.expand_path '.' end #=> "/private/var/..."
    # TODO use File#realpath above instead of #expand_path once 1.8 support is
    # dropped.
    Dir.chdir @tempdir do
      @tempdir = File.expand_path '.'
      @tempdir.untaint
    end

# This makes the tempdir consistent on Windows.
    # Dir.tmpdir may return short path name, but Dir[Dir.tmpdir] returns long
    # path name. https://bugs.ruby-lang.org/issues/10819
    # File.expand_path or File.realpath doesn't convert path name to long path
    # name. Only Dir[] (= Dir.glob) works.
    # Short and long path name is specific to Windows filesystem.
    if win_platform?
      @tempdir = Dir[@tempdir][0]
      @tempdir.untaint
    end

@gemhome  = File.join @tempdir, 'gemhome'
    @userhome = File.join @tempdir, 'userhome'
    ENV["GEM_SPEC_CACHE"] = File.join @tempdir, 'spec_cache'

@orig_ruby = if ENV['RUBY'] then
                   ruby = Gem.ruby
                   Gem.ruby = ENV['RUBY']
                   ruby
                 end

@git = ENV['GIT'] || 'git'

Gem.ensure_gem_subdirectories @gemhome

@orig_LOAD_PATH = $LOAD_PATH.dup
    $LOAD_PATH.map! { |s|
      (expand_path = File.expand_path(s)) == s ? s : expand_path.untaint
    }

Dir.chdir @tempdir

@orig_ENV_HOME = ENV['HOME']
    ENV['HOME'] = @userhome
    Gem.instance_variable_set :@user_home, nil
    Gem.instance_variable_set :@gemdeps, nil
    Gem.send :remove_instance_variable, :@ruby_version if
      Gem.instance_variables.include? :@ruby_version

FileUtils.mkdir_p @gemhome
    FileUtils.mkdir_p @userhome

@orig_gem_private_key_passphrase = ENV['GEM_PRIVATE_KEY_PASSPHRASE']
    ENV['GEM_PRIVATE_KEY_PASSPHRASE'] = PRIVATE_KEY_PASSPHRASE

@default_dir = File.join @tempdir, 'default'
    @default_spec_dir = File.join @default_dir, "specifications", "default"
    Gem.instance_variable_set :@default_dir, @default_dir
    FileUtils.mkdir_p @default_spec_dir

# We use Gem::Specification.reset the first time only so that if there
    # are unresolved deps that leak into the whole test suite, they're at least
    # reported once.
    if @@initial_reset
      Gem::Specification.unresolved_deps.clear # done to avoid cross-test warnings
    else
      @@initial_reset = true
      Gem::Specification.reset
    end
    Gem.use_paths(@gemhome)

Gem::Security.reset

Gem.loaded_specs.clear
    Gem.clear_default_specs
    Gem::Specification.unresolved_deps.clear

Gem.configuration.verbose = true
    Gem.configuration.update_sources = true

Gem::RemoteFetcher.fetcher = Gem::FakeFetcher.new

@gem_repo = "http://gems.example.com/"
    @uri = URI.parse @gem_repo
    Gem.sources.replace [@gem_repo]

Gem.searcher = nil
    Gem::SpecFetcher.fetcher = nil
    @orig_BASERUBY = RbConfig::CONFIG['BASERUBY']
    RbConfig::CONFIG['BASERUBY'] = RbConfig::CONFIG['ruby_install_name']

@orig_arch = RbConfig::CONFIG['arch']

if win_platform?
      util_set_arch 'i386-mswin32'
    else
      util_set_arch 'i686-darwin8.10.1'
    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 unless the +KEEP_FILES+ environment variable was set.

def teardown
    $LOAD_PATH.replace @orig_LOAD_PATH if @orig_LOAD_PATH
    if @orig_LOADED_FEATURES
      if @orig_LOAD_PATH
        paths = @orig_LOAD_PATH.map {|path| File.join(File.expand_path(path), "/")}
        ($LOADED_FEATURES - @orig_LOADED_FEATURES).each do |feat|
          unless paths.any? {|path| feat.start_with?(path)}
            $LOADED_FEATURES.delete(feat)
          end
        end
      else
        $LOADED_FEATURES.replace @orig_LOADED_FEATURES
      end
    end

if @orig_BASERUBY
      RbConfig::CONFIG['BASERUBY'] = @orig_BASERUBY
    else
      RbConfig::CONFIG.delete('BASERUBY')
    end
    RbConfig::CONFIG['arch'] = @orig_arch

if defined? Gem::RemoteFetcher then
      Gem::RemoteFetcher.fetcher = nil
    end

Dir.chdir @current_dir

FileUtils.rm_rf @tempdir unless ENV['KEEP_FILES']

ENV['GEM_HOME']   = @orig_gem_home
    ENV['GEM_PATH']   = @orig_gem_path
    ENV['GEM_VENDOR'] = @orig_gem_vendor
    ENV['GEM_SPEC_CACHE'] = @orig_gem_spec_cache
    ENV['RUBYGEMS_GEMDEPS'] = @orig_rubygems_gemdeps
    ENV['RUBYGEMS_HOST'] = @orig_rubygems_host

Gem.ruby = @orig_ruby if @orig_ruby

if @orig_ENV_HOME then
      ENV['HOME'] = @orig_ENV_HOME
    else
      ENV.delete 'HOME'
    end

Gem.instance_variable_set :@default_dir, nil

ENV['GEM_PRIVATE_KEY_PASSPHRASE'] = @orig_gem_private_key_passphrase

Gem::Specification._clear_load_cache
    Gem::Specification.unresolved_deps.clear
  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

##
  # 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"

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' then
        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', 'master').strip
    end

return name, git_spec.version, directory, head
  end

##
  # Skips this test unless you have a git executable

def have_git?
    return if in_path? @git

skip 'cannot find git executable, use GIT environment variable to set'
  end

def in_path? executable # :nodoc:
    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
    end
  end

##
  # Builds and installs the Gem::Specification +spec+

def install_gem spec, options = {}
    require 'rubygems/installer'

gem = File.join @tempdir, "gems", "#{spec.full_name}.gem"

unless File.exist? gem then
      use_ui Gem::MockGemUi.new do
        Dir.chdir @tempdir do
          Gem::Package.build spec
        end
      end

gem = File.join(@tempdir, File.basename(spec.cache_file)).untaint
    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) {
      def ask_if_ok spec
        true
      end
    }.new(spec.name, :executables => true, :user_install => true).uninstall
  end

##
  # creates a temporary directory with hax
  # TODO: deprecate and remove

def create_tmpdir
    tmpdir = nil
    Dir.chdir Dir.tmpdir do tmpdir = Dir.pwd end # HACK OSX /private/tmp
    tmpdir = File.join tmpdir, "test_rubygems_#{$$}"
    FileUtils.mkdir_p tmpdir
    return tmpdir
  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) if defined? Encoding
    s.chomp
  end

##
  # Reads a Marshal file at +path+

def read_cache(path)
    open path.dup.untaint, '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

open path, 'wb' do |io|
      yield io if block_given?
    end

path
  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

Gem::Specification.map # HACK: force specs to (re-)load before we write

written_path = write_file spec.spec_file do |io|
      io.write spec.to_ruby_for_cache
    end

spec.loaded_from = spec.loaded_from = written_path

Gem::Specification.reset

return spec
  end

##
  # TODO:  remove in RubyGems 3.0

def quick_spec name, version = '2' # :nodoc:
    util_spec name, version
  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") # TODO: use Gem::Dirs
    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).install
    end

Gem.searcher = nil
  end

##
  # Installs the provided default specs including writing the spec file

def install_default_gems(*specs)
    install_default_specs(*specs)

specs.each do |spec|
      open spec.loaded_from, 'w' do |io|
        io.write spec.to_ruby_for_cache
      end
    end
  end

##
  # Install the provided default specs

def install_default_specs(*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 save_loaded_features
    old_loaded_features = $LOADED_FEATURES.dup
    yield
  ensure
    $LOADED_FEATURES.replace old_loaded_features
  end

##
  # new_spec is deprecated as it is never used.
  #
  # TODO:  remove in RubyGems 3.0

def new_spec name, version, deps = nil, *files # :nodoc:
    require 'rubygems/specification'

Array(deps).each do |n, req|
        s.add_dependency n, (req || '>= 0')
      end

s.files.push(*files) unless files.empty?

yield s if block_given?
    end

spec.loaded_from = spec.spec_file

unless files.empty? then
      write_file spec.spec_file do |io|
        io.write spec.to_ruby_for_cache
      end

util_build_gem spec

cache_file = File.join @tempdir, 'gems', "#{spec.full_name}.gem"
      FileUtils.mkdir_p File.dirname cache_file
      FileUtils.mv spec.cache_file, cache_file
      FileUtils.rm spec.spec_file
    end

spec
  end

def new_default_spec(name, version, deps = nil, *files)
    spec = util_spec name, version, deps

spec.loaded_from = File.join(@default_spec_dir, spec.spec_name)
    spec.files = files

lib_dir = File.join(@tempdir, "default_gems", "lib")
    $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 # :yields: specification
    raise "deps or block, not both" if deps and block_given?

yield s if block_given?
    end

if deps then
      # Since Hash#each is unordered in 1.8, sort the keys and iterate that
      # way so the tests are deterministic on all implementations.
      deps.keys.sort.each do |n|
        spec.add_dependency n, (deps[n] || '>= 0')
      end
    end

Gem::Specification.reset

return 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)
    # TODO: deprecate
    raise "deps or block, not both" if deps and block

if deps then
      block = proc do |s|
        # Since Hash#each is unordered in 1.8, sort
        # the keys and iterate that way so the tests are
        # deterministic on all implementations.
        deps.keys.sort.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 - 86400
      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

platform
  end

##
  # Sets up a fake fetcher using the gems from #util_make_gems.  Optionally
  # additional +prerelease+ gems may be included.
  #
  # Gems created by this method may be fetched using Gem::RemoteFetcher.

def util_setup_fake_fetcher(prerelease = false)
    require 'zlib'
    require 'socket'
    require 'rubygems/remote_fetcher'

@fetcher = Gem::FakeFetcher.new

util_make_gems(prerelease)
    Gem::Specification.reset

@all_gems = [@a1, @a2, @a3a, @a_evil9, @b2, @c1_2].sort
    @all_gem_names = @all_gems.map { |gem| gem.full_name }

gem_names = [@a1.full_name, @a2.full_name, @a3a.full_name, @b2.full_name]
    @gem_names = gem_names.sort.join("\n")

Gem::RemoteFetcher.fetcher = @fetcher
  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+.
  # Best used with +@all_gems+ from #util_setup_fake_fetcher.

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 then
      v = Gem.marshal_version

specs = all.map { |spec| spec.name_tuple }
      s_zip = util_gzip Marshal.dump Gem::NameTuple.to_basic specs

latest_specs = latest.map do |spec|
        spec.name_tuple
      end

l_zip = util_gzip Marshal.dump Gem::NameTuple.to_basic latest_specs

prerelease_specs = prerelease.map { |spec| spec.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

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

nil # force errors
  end

##
  # Deflates +data+

def util_zip(data)
    Zlib::Deflate.deflate data
  end

def util_set_RUBY_VERSION(version, patchlevel = nil, revision = nil)
    if Gem.instance_variables.include? :@ruby_version or
       Gem.instance_variables.include? '@ruby_version' then
      Gem.send :remove_instance_variable, :@ruby_version
    end

@RUBY_VERSION    = RUBY_VERSION
    @RUBY_PATCHLEVEL = RUBY_PATCHLEVEL if defined?(RUBY_PATCHLEVEL)
    @RUBY_REVISION   = RUBY_REVISION   if defined?(RUBY_REVISION)

Object.send :remove_const, :RUBY_VERSION
    Object.send :remove_const, :RUBY_PATCHLEVEL if defined?(RUBY_PATCHLEVEL)
    Object.send :remove_const, :RUBY_REVISION   if defined?(RUBY_REVISION)

Object.const_set :RUBY_VERSION,    version
    Object.const_set :RUBY_PATCHLEVEL, patchlevel if patchlevel
    Object.const_set :RUBY_REVISION,   revision   if revision
  end

def util_restore_RUBY_VERSION
    Object.send :remove_const, :RUBY_VERSION
    Object.send :remove_const, :RUBY_PATCHLEVEL if defined?(RUBY_PATCHLEVEL)
    Object.send :remove_const, :RUBY_REVISION   if defined?(RUBY_REVISION)

Object.const_set :RUBY_VERSION,    @RUBY_VERSION
    Object.const_set :RUBY_PATCHLEVEL, @RUBY_PATCHLEVEL if
      defined?(@RUBY_PATCHLEVEL)
    Object.const_set :RUBY_REVISION,   @RUBY_REVISION   if
      defined?(@RUBY_REVISION)
  end

##
  # Is this test being run on a Windows platform?

def self.win_platform?
    Gem.win_platform?
  end

##
  # Is this test being run on a Windows platform?

def win_platform?
    Gem.win_platform?
  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

##
  # Returns whether or not we're on a version of Ruby built with VC++ (or
  # Borland) versus Cygwin, Mingw, etc.

def vc_windows?
    RUBY_PLATFORM.match('mswin')
  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 self.make_command
    ENV["make"] || ENV["MAKE"] || (vc_windows? ? 'nmake' : 'make')
  end

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 tests to use a random (but controlled) port number instead of
  # a hardcoded one. This helps CI tools when running parallels builds on
  # the same builder slave.

def self.process_based_port
    @@process_based_port ||= 8000 + $$ % 1000
  end

##
  # See ::process_based_port

def process_based_port
    self.class.process_based_port
  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 = @@ruby
    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}.exe"

3.times do
      if File.exist? ruby and File.executable? ruby and !File.directory? ruby
        return File.expand_path(ruby)
      end
      if File.exist? rubyexe and File.executable? rubyexe
        return File.expand_path(rubyexe)
      end
      ruby = File.join("..", ruby)
    end

begin
      require "rbconfig"
      File.join(RbConfig::CONFIG["bindir"],
                RbConfig::CONFIG["ruby_install_name"] +
                RbConfig::CONFIG["EXEEXT"])
    rescue LoadError
      "ruby"
    end
  end

@@ruby = rubybin
  @@good_rake = "#{rubybin} \"#{File.expand_path('../../../test/rubygems/good_rake.rb', __FILE__)}\""
  @@bad_rake = "#{rubybin} \"#{File.expand_path('../../../test/rubygems/bad_rake.rb', __FILE__)}\""

##
  # 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 then
      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
    directory = File.join 'vendor', name

FileUtils.mkdir_p directory

save_gemspec name, version, directory
  end

##
  # create_gemspec creates gem specification in given +direcotry+ 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

open File.join(directory, "#{name}.gemspec"), 'w' do |io|
      io.write vendor_spec.to_ruby
    end

return 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 32 == (Time.at(2**32) rescue 32) then
      cert_file =
        File.expand_path "../../../test/rubygems/#{cert_name}_cert_32.pem",
                         __FILE__

return cert_file if File.exist? cert_file
    end

File.expand_path "../../../test/rubygems/#{cert_name}_cert.pem", __FILE__
  end

##
  # Loads an RSA 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::RSA.new key, passphrase
  end

##
  # Returns the path to the key named +key_name+ from <tt>test/rubygems</tt>

def self.key_path key_name
    File.expand_path "../../../test/rubygems/#{key_name}_key.pem", __FILE__
  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 defined?(OpenSSL::SSL)

end

# require dependencies that are not discoverable once GEM_HOME and GEM_PATH
# are wiped
begin
  gem 'rake'
rescue Gem::LoadError
end

begin
  require 'rake/packagetask'
rescue LoadError
end

begin
  gem 'rdoc'
  require 'rdoc'
rescue LoadError, Gem::LoadError
end

begin
  gem 'builder'
  require 'builder/xchar'
rescue LoadError, Gem::LoadError
end

require 'rubygems/test_utilities'
tmpdirs = []
tmpdirs << (ENV['GEM_HOME'] = Dir.mktmpdir("home"))
tmpdirs << (ENV['GEM_PATH'] = Dir.mktmpdir("path"))
pid = $$
END {tmpdirs.each {|dir| Dir.rmdir(dir)} if $$ == pid}
Gem.clear_paths

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