[rubygems/rubygems] Copy files specific to testing rubygems to `test`

https://github.com/rubygems/rubygems/commit/aa390a3500

1 files changed, 247 insertions, 0 deletions

diff --git a/test/rubygems/installer_test_case.rb b/test/rubygems/installer_test_case.rb
new file mode 100644
index 0000000000..416dac7be6
--- /dev/null
+++ b/test/rubygems/installer_test_case.rb
@@ -0,0 +1,247 @@
+# frozen_string_literal: true
+require 'rubygems/test_case'
+require 'rubygems/installer'
+
+class Gem::Installer
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :bin_dir
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :build_args
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :gem_dir
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :force
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :format
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :gem_home
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :env_shebang
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :ignore_dependencies
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :format_executable
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :security_policy
+
+  ##
+  # Available through requiring rubygems/installer_test_case
+
+  attr_writer :wrappers
+end
+
+##
+# A test case for Gem::Installer.
+
+class Gem::InstallerTestCase < Gem::TestCase
+  def setup
+    super
+
+    Gem::Installer.path_warning = false
+  end
+
+  ##
+  # The path where installed executables live
+
+  def util_inst_bindir
+    File.join @gemhome, "bin"
+  end
+
+  ##
+  # Adds an executable named "executable" to +spec+ with the given +shebang+.
+  #
+  # The executable is also written to the bin dir in @tmpdir and the installed
+  # gem directory for +spec+.
+
+  def util_make_exec(spec = @spec, shebang = "#!/usr/bin/ruby", bindir = "bin")
+    spec.executables = %w[executable]
+    spec.bindir = bindir
+
+    exec_path = spec.bin_file "executable"
+    write_file exec_path do |io|
+      io.puts shebang
+    end
+
+    bin_path = File.join @tempdir, "bin", "executable"
+    write_file bin_path do |io|
+      io.puts shebang
+    end
+  end
+
+  ##
+  # Creates the following instance variables:
+  #
+  # @spec::
+  #   a spec named 'a', intended for regular installs
+  #
+  # @gem::
+  #   the path to a built gem from @spec
+  #
+  # And returns a Gem::Installer for the @spec that installs into @gemhome
+
+  def setup_base_installer(force = true)
+    @gem = setup_base_gem
+    util_installer @spec, @gemhome, false, force
+  end
+
+  ##
+  # Creates the following instance variables:
+  #
+  # @spec::
+  #   a spec named 'a', intended for regular installs
+  #
+  # And returns a gem built for the @spec
+
+  def setup_base_gem
+    @spec = setup_base_spec
+    util_build_gem @spec
+    @spec.cache_file
+  end
+
+  ##
+  # Sets up a generic specification for testing the rubygems installer
+  #
+  # And returns it
+
+  def setup_base_spec
+    quick_gem 'a' do |spec|
+      util_make_exec spec
+    end
+  end
+
+  ##
+  # Creates the following instance variables:
+  #
+  # @spec::
+  #   a spec named 'a', intended for regular installs
+  # @user_spec::
+  #   a spec named 'b', intended for user installs
+  #
+  # @gem::
+  #   the path to a built gem from @spec
+  # @user_gem::
+  #   the path to a built gem from @user_spec
+  #
+  # And returns a Gem::Installer for the @user_spec that installs into Gem.user_dir
+
+  def setup_base_user_installer
+    @user_spec = quick_gem 'b' do |spec|
+      util_make_exec spec
+    end
+
+    util_build_gem @user_spec
+
+    @user_gem = @user_spec.cache_file
+
+    util_installer @user_spec, Gem.user_dir, :user
+  end
+
+  ##
+  # Sets up the base @gem, builds it and returns an installer for it.
+  #
+  def util_setup_installer(&block)
+    @gem = setup_base_gem
+
+    util_setup_gem(&block)
+  end
+
+  ##
+  # Builds the @spec gem and returns an installer for it.  The built gem
+  # includes:
+  #
+  #   bin/executable
+  #   lib/code.rb
+  #   ext/a/mkrf_conf.rb
+
+  def util_setup_gem(ui = @ui, force = true)
+    @spec.files << File.join('lib', 'code.rb')
+    @spec.extensions << File.join('ext', 'a', 'mkrf_conf.rb')
+
+    Dir.chdir @tempdir do
+      FileUtils.mkdir_p 'bin'
+      FileUtils.mkdir_p 'lib'
+      FileUtils.mkdir_p File.join('ext', 'a')
+
+      File.open File.join('bin', 'executable'), 'w' do |f|
+        f.puts "raise 'ran executable'"
+      end
+
+      File.open File.join('lib', 'code.rb'), 'w' do |f|
+        f.puts '1'
+      end
+
+      File.open File.join('ext', 'a', 'mkrf_conf.rb'), 'w' do |f|
+        f << <<-EOF
+          File.open 'Rakefile', 'w' do |rf| rf.puts "task :default" end
+        EOF
+      end
+
+      yield @spec if block_given?
+
+      use_ui ui do
+        FileUtils.rm_f @gem
+
+        @gem = Gem::Package.build @spec
+      end
+    end
+
+    Gem::Installer.at @gem, :force => force
+  end
+
+  ##
+  # Creates an installer for +spec+ that will install into +gem_home+.  If
+  # +user+ is true a user-install will be performed.
+
+  def util_installer(spec, gem_home, user=false, force=true)
+    Gem::Installer.at(spec.cache_file,
+                       :install_dir => gem_home,
+                       :user_install => user,
+                       :force => force)
+  end
+
+  @@symlink_supported = nil
+
+  # This is needed for Windows environment without symlink support enabled (the default
+  # for non admin) to be able to skip test for features using symlinks.
+  def symlink_supported?
+    if @@symlink_supported.nil?
+      begin
+        File.symlink("", "")
+      rescue Errno::ENOENT, Errno::EEXIST
+        @@symlink_supported = true
+      rescue NotImplementedError, SystemCallError
+        @@symlink_supported = false
+      end
+    end
+    @@symlink_supported
+  end
+end