Merge RubyGems-3.3.23 and Bundler-2.3.23

13 files changed, 603 insertions, 319 deletions

diff --git a/test/rubygems/helper.rb b/test/rubygems/helper.rb
index 970ba09c10..1ed1523f73 100644
--- a/test/rubygems/helper.rb
+++ b/test/rubygems/helper.rb
@@ -2,26 +2,11 @@
 
 require "rubygems"
 
-# If bundler gemspec exists, add to stubs
-bundler_gemspec = File.expand_path("../../bundler/bundler.gemspec", __dir__)
-if File.exist?(bundler_gemspec)
-  Gem::Specification.dirs.unshift File.dirname(bundler_gemspec)
-  Gem::Specification.class_variable_set :@@stubs, nil
-  Gem::Specification.stubs
-  Gem::Specification.dirs.shift
-end
-
 begin
   gem "test-unit", "~> 3.0"
 rescue Gem::LoadError
 end
 
-if File.exist?(bundler_gemspec)
-  require_relative "../../bundler/lib/bundler"
-else
-  require "bundler"
-end
-
 require "test/unit"
 
 ENV["JARS_SKIP"] = "true" if Gem.java_platform? # avoid unnecessary and noisy `jar-dependencies` post install hook
@@ -409,7 +394,6 @@ class Gem::TestCase < Test::Unit::TestCase
     Gem.loaded_specs.clear
     Gem.instance_variable_set(:@activated_gem_paths, 0)
     Gem.clear_default_specs
-    Bundler.reset!
 
     Gem.configuration.verbose = true
     Gem.configuration.update_sources = true
@@ -465,7 +449,7 @@ class Gem::TestCase < Test::Unit::TestCase
 
     FileUtils.rm_rf @tempdir
 
-    ENV.replace(@orig_env)
+    restore_env
 
     Gem::ConfigFile.send :remove_const, :SYSTEM_WIDE_CONFIG_FILE
     Gem::ConfigFile.send :const_set, :SYSTEM_WIDE_CONFIG_FILE,
@@ -575,6 +559,7 @@ class Gem::TestCase < Test::Unit::TestCase
     Dir.chdir directory do
       unless File.exist? ".git"
         system @git, "init", "--quiet"
+        system @git, "checkout", "-b", "master", "--quiet"
         system @git, "config", "user.name",  "RubyGems Tests"
         system @git, "config", "user.email", "rubygems@example"
       end
@@ -1301,6 +1286,10 @@ Also, a list:
     $LOAD_PATH.find {|p| p == File.dirname($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
 
@@ -1581,6 +1570,23 @@ Also, a list:
     PUBLIC_KEY  = nil
     PUBLIC_CERT = nil
   end if Gem::HAVE_OPENSSL
+
+  private
+
+  def restore_env
+    unless Gem.win_platform?
+      ENV.replace(@orig_env)
+      return
+    end
+
+    # Fallback logic for Windows below to workaround
+    # https://bugs.ruby-lang.org/issues/16798. Can be dropped once all
+    # supported rubies include the fix for that.
+
+    ENV.clear
+
+    @orig_env.each {|k, v| ENV[k] = v }
+  end
 end
 
 # https://github.com/seattlerb/minitest/blob/13c48a03d84a2a87855a4de0c959f96800100357/lib/minitest/mock.rb#L192
diff --git a/test/rubygems/packages/Bluebie-legs-0.6.2.gem b/test/rubygems/packages/Bluebie-legs-0.6.2.gem
new file mode 100644
index 0000000000..60918f3bc5
--- /dev/null
+++ b/test/rubygems/packages/Bluebie-legs-0.6.2.gem
diff --git a/test/rubygems/test_gem.rb b/test/rubygems/test_gem.rb
index bbb3e6dd0a..1b8527cce9 100644
--- a/test/rubygems/test_gem.rb
+++ b/test/rubygems/test_gem.rb
@@ -617,20 +617,22 @@ class TestGem < Gem::TestCase
   end
 
   def test_self_use_gemdeps
-    with_rubygems_gemdeps("-") do
-      FileUtils.mkdir_p "detect/a/b"
-      FileUtils.mkdir_p "detect/a/Isolate"
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("-") do
+        FileUtils.mkdir_p "detect/a/b"
+        FileUtils.mkdir_p "detect/a/Isolate"
 
-      FileUtils.touch "detect/Isolate"
+        FileUtils.touch "detect/Isolate"
 
-      begin
-        Dir.chdir "detect/a/b"
+        begin
+          Dir.chdir "detect/a/b"
 
-        Gem.use_gemdeps
+          Gem.use_gemdeps
 
-        assert_equal add_bundler_full_name([]), loaded_spec_names
-      ensure
-        Dir.chdir @tempdir
+          assert_equal add_bundler_full_name([]), loaded_spec_names
+        ensure
+          Dir.chdir @tempdir
+        end
       end
     end
   end
@@ -775,39 +777,40 @@ class TestGem < Gem::TestCase
   end
 
   def test_self_find_files_with_gemfile
-    cwd = File.expand_path("test/rubygems", PROJECT_DIR)
-    actual_load_path = $LOAD_PATH.unshift(cwd).dup
+    with_local_bundler_at(Gem.dir) do
+      cwd = File.expand_path("test/rubygems", PROJECT_DIR)
+      actual_load_path = $LOAD_PATH.unshift(cwd).dup
 
-    discover_path = File.join "lib", "sff", "discover.rb"
+      discover_path = File.join "lib", "sff", "discover.rb"
 
-    foo1, _ = %w[1 2].map do |version|
-      spec = quick_gem "sff", version do |s|
-        s.files << discover_path
+      foo1, _ = %w[1 2].map do |version|
+        spec = quick_gem "sff", version do |s|
+          s.files << discover_path
+        end
+
+        write_file(File.join "gems", spec.full_name, discover_path) do |fp|
+          fp.puts "# #{spec.full_name}"
+        end
+
+        spec
       end
+      Gem.refresh
 
-      write_file(File.join "gems", spec.full_name, discover_path) do |fp|
-        fp.puts "# #{spec.full_name}"
+      write_file(File.join Dir.pwd, "Gemfile") do |fp|
+        fp.puts "source 'https://rubygems.org'"
+        fp.puts "gem '#{foo1.name}', '#{foo1.version}'"
       end
+      Gem.use_gemdeps(File.join Dir.pwd, "Gemfile")
 
-      spec
-    end
-    Gem.refresh
+      expected = [
+        File.expand_path("test/rubygems/sff/discover.rb", PROJECT_DIR),
+        File.join(foo1.full_gem_path, discover_path),
+      ].sort
 
-    write_file(File.join Dir.pwd, "Gemfile") do |fp|
-      fp.puts "source 'https://rubygems.org'"
-      fp.puts "gem '#{foo1.name}', '#{foo1.version}'"
+      assert_equal expected, Gem.find_files("sff/discover").sort
+      assert_equal expected, Gem.find_files("sff/**.rb").sort, "[ruby-core:31730]"
+      assert_equal cwd, actual_load_path.shift
     end
-    Gem.use_gemdeps(File.join Dir.pwd, "Gemfile")
-
-    expected = [
-      File.expand_path("test/rubygems/sff/discover.rb", PROJECT_DIR),
-      File.join(foo1.full_gem_path, discover_path),
-    ].sort
-
-    assert_equal expected, Gem.find_files("sff/discover").sort
-    assert_equal expected, Gem.find_files("sff/**.rb").sort, "[ruby-core:31730]"
-  ensure
-    assert_equal cwd, actual_load_path.shift unless Gem.java_platform?
   end
 
   def test_self_find_latest_files
@@ -1335,12 +1338,10 @@ class TestGem < Gem::TestCase
       refute Gem.try_activate "nonexistent"
     end
 
-    unless Gem.java_platform?
-      expected = "Ignoring ext-1 because its extensions are not built. " +
-                 "Try: gem pristine ext --version 1\n"
+    expected = "Ignoring ext-1 because its extensions are not built. " +
+               "Try: gem pristine ext --version 1\n"
 
-      assert_equal expected, err
-    end
+    assert_equal expected, err
   end
 
   def test_self_use_paths_with_nils
@@ -1640,159 +1641,164 @@ class TestGem < Gem::TestCase
   end
 
   def test_auto_activation_of_specific_gemdeps_file
-    a = util_spec "a", "1", nil, "lib/a.rb"
-    b = util_spec "b", "1", nil, "lib/b.rb"
-    c = util_spec "c", "1", nil, "lib/c.rb"
+    with_local_bundler_at(Gem.dir) do
+      a = util_spec "a", "1", nil, "lib/a.rb"
+      b = util_spec "b", "1", nil, "lib/b.rb"
+      c = util_spec "c", "1", nil, "lib/c.rb"
 
-    install_specs a, b, c
+      install_specs a, b, c
 
-    path = File.join @tempdir, "gem.deps.rb"
+      path = File.join @tempdir, "gem.deps.rb"
 
-    File.open path, "w" do |f|
-      f.puts "gem 'a'"
-      f.puts "gem 'b'"
-      f.puts "gem 'c'"
-    end
+      File.open path, "w" do |f|
+        f.puts "gem 'a'"
+        f.puts "gem 'b'"
+        f.puts "gem 'c'"
+      end
 
-    with_rubygems_gemdeps(path) do
-      Gem.use_gemdeps
+      with_rubygems_gemdeps(path) do
+        Gem.use_gemdeps
 
-      assert_equal add_bundler_full_name(%W[a-1 b-1 c-1]), loaded_spec_names
+        assert_equal add_bundler_full_name(%W[a-1 b-1 c-1]), loaded_spec_names
+      end
     end
   end
 
   def test_auto_activation_of_used_gemdeps_file
-    a = util_spec "a", "1", nil, "lib/a.rb"
-    b = util_spec "b", "1", nil, "lib/b.rb"
-    c = util_spec "c", "1", nil, "lib/c.rb"
+    with_local_bundler_at(Gem.dir) do
+      a = util_spec "a", "1", nil, "lib/a.rb"
+      b = util_spec "b", "1", nil, "lib/b.rb"
+      c = util_spec "c", "1", nil, "lib/c.rb"
 
-    install_specs a, b, c
+      install_specs a, b, c
 
-    path = File.join @tempdir, "gem.deps.rb"
+      path = File.join @tempdir, "gem.deps.rb"
 
-    File.open path, "w" do |f|
-      f.puts "gem 'a'"
-      f.puts "gem 'b'"
-      f.puts "gem 'c'"
-    end
+      File.open path, "w" do |f|
+        f.puts "gem 'a'"
+        f.puts "gem 'b'"
+        f.puts "gem 'c'"
+      end
 
-    with_rubygems_gemdeps("-") do
-      expected_specs = [a, b, util_spec("bundler", Bundler::VERSION), c].compact.map(&:full_name)
+      with_rubygems_gemdeps("-") do
+        expected_specs = [a, b, util_spec("bundler", Bundler::VERSION), c].compact.map(&:full_name)
 
-      Gem.use_gemdeps
+        Gem.use_gemdeps
 
-      assert_equal expected_specs, loaded_spec_names
+        assert_equal expected_specs, loaded_spec_names
+      end
     end
   end
 
-  BUNDLER_LIB_PATH = File.expand_path $LOAD_PATH.find {|lp| File.file?(File.join(lp, "bundler.rb")) }
-  BUNDLER_FULL_NAME = "bundler-#{Bundler::VERSION}".freeze
-
   def add_bundler_full_name(names)
-    names << BUNDLER_FULL_NAME
+    names << "bundler-#{Bundler::VERSION}".freeze
     names.sort!
     names
   end
 
   def test_looks_for_gemdeps_files_automatically_from_binstubs
-    pend "Requiring bundler messes things up" if Gem.java_platform?
+    path = File.join(@tempdir, "gd-tmp")
 
-    a = util_spec "a", "1" do |s|
-      s.executables = %w[foo]
-      s.bindir = "exe"
-    end
+    with_local_bundler_at(path) do
+      a = util_spec "a", "1" do |s|
+        s.executables = %w[foo]
+        s.bindir = "exe"
+      end
 
-    write_file File.join(@tempdir, "exe", "foo") do |fp|
-      fp.puts "puts Gem.loaded_specs.values.map(&:full_name).sort"
-    end
+      write_file File.join(@tempdir, "exe", "foo") do |fp|
+        fp.puts "puts Gem.loaded_specs.values.map(&:full_name).sort"
+      end
 
-    b = util_spec "b", "1", nil, "lib/b.rb"
-    c = util_spec "c", "1", nil, "lib/c.rb"
+      b = util_spec "b", "1", nil, "lib/b.rb"
+      c = util_spec "c", "1", nil, "lib/c.rb"
 
-    install_specs a, b, c
+      install_specs a, b, c
 
-    path = File.join(@tempdir, "gd-tmp")
-    install_gem a, :install_dir => path
-    install_gem b, :install_dir => path
-    install_gem c, :install_dir => path
+      install_gem a, :install_dir => path
+      install_gem b, :install_dir => path
+      install_gem c, :install_dir => path
 
-    ENV["GEM_PATH"] = path
+      ENV["GEM_PATH"] = path
 
-    with_rubygems_gemdeps("-") do
-      new_PATH = [File.join(path, "bin"), ENV["PATH"]].join(File::PATH_SEPARATOR)
-      new_RUBYOPT = "-I#{rubygems_path} -I#{BUNDLER_LIB_PATH}"
+      with_rubygems_gemdeps("-") do
+        new_PATH = [File.join(path, "bin"), ENV["PATH"]].join(File::PATH_SEPARATOR)
+        new_RUBYOPT = "-I#{rubygems_path} -I#{bundler_path}"
 
-      path = File.join @tempdir, "gem.deps.rb"
+        path = File.join @tempdir, "gem.deps.rb"
 
-      File.open path, "w" do |f|
-        f.puts "gem 'a'"
-      end
-      out0 = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
-        IO.popen("foo", &:read).split(/\n/)
-      end
+        File.open path, "w" do |f|
+          f.puts "gem 'a'"
+        end
+        out0 = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
+          IO.popen("foo", &:read).split(/\n/)
+        end
 
-      File.open path, "a" do |f|
-        f.puts "gem 'b'"
-        f.puts "gem 'c'"
-      end
-      out = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
-        IO.popen("foo", &:read).split(/\n/)
-      end
+        File.open path, "a" do |f|
+          f.puts "gem 'b'"
+          f.puts "gem 'c'"
+        end
+        out = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
+          IO.popen("foo", &:read).split(/\n/)
+        end
 
-      assert_equal ["b-1", "c-1"], out - out0
+        assert_equal ["b-1", "c-1"], out - out0
+      end
     end
   end
 
   def test_looks_for_gemdeps_files_automatically_from_binstubs_in_parent_dir
-    pend "Requiring bundler messes things up" if Gem.java_platform?
+    path = File.join(@tempdir, "gd-tmp")
 
-    a = util_spec "a", "1" do |s|
-      s.executables = %w[foo]
-      s.bindir = "exe"
-    end
+    with_local_bundler_at(path) do
+      pend "IO.popen has issues on JRuby when passed :chdir" if Gem.java_platform?
 
-    write_file File.join(@tempdir, "exe", "foo") do |fp|
-      fp.puts "puts Gem.loaded_specs.values.map(&:full_name).sort"
-    end
+      a = util_spec "a", "1" do |s|
+        s.executables = %w[foo]
+        s.bindir = "exe"
+      end
 
-    b = util_spec "b", "1", nil, "lib/b.rb"
-    c = util_spec "c", "1", nil, "lib/c.rb"
+      write_file File.join(@tempdir, "exe", "foo") do |fp|
+        fp.puts "puts Gem.loaded_specs.values.map(&:full_name).sort"
+      end
 
-    install_specs a, b, c
+      b = util_spec "b", "1", nil, "lib/b.rb"
+      c = util_spec "c", "1", nil, "lib/c.rb"
 
-    path = File.join(@tempdir, "gd-tmp")
-    install_gem a, :install_dir => path
-    install_gem b, :install_dir => path
-    install_gem c, :install_dir => path
+      install_specs a, b, c
 
-    ENV["GEM_PATH"] = path
+      install_gem a, :install_dir => path
+      install_gem b, :install_dir => path
+      install_gem c, :install_dir => path
 
-    with_rubygems_gemdeps("-") do
-      Dir.mkdir "sub1"
+      ENV["GEM_PATH"] = path
 
-      new_PATH = [File.join(path, "bin"), ENV["PATH"]].join(File::PATH_SEPARATOR)
-      new_RUBYOPT = "-I#{rubygems_path} -I#{BUNDLER_LIB_PATH}"
+      with_rubygems_gemdeps("-") do
+        Dir.mkdir "sub1"
 
-      path = File.join @tempdir, "gem.deps.rb"
+        new_PATH = [File.join(path, "bin"), ENV["PATH"]].join(File::PATH_SEPARATOR)
+        new_RUBYOPT = "-I#{rubygems_path} -I#{bundler_path}"
 
-      File.open path, "w" do |f|
-        f.puts "gem 'a'"
-      end
-      out0 = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
-        IO.popen("foo", :chdir => "sub1", &:read).split(/\n/)
-      end
+        path = File.join @tempdir, "gem.deps.rb"
 
-      File.open path, "a" do |f|
-        f.puts "gem 'b'"
-        f.puts "gem 'c'"
-      end
-      out = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
-        IO.popen("foo", :chdir => "sub1", &:read).split(/\n/)
-      end
+        File.open path, "w" do |f|
+          f.puts "gem 'a'"
+        end
+        out0 = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
+          IO.popen("foo", :chdir => "sub1", &:read).split(/\n/)
+        end
 
-      Dir.rmdir "sub1"
+        File.open path, "a" do |f|
+          f.puts "gem 'b'"
+          f.puts "gem 'c'"
+        end
+        out = with_path_and_rubyopt(new_PATH, new_RUBYOPT) do
+          IO.popen("foo", :chdir => "sub1", &:read).split(/\n/)
+        end
 
-      assert_equal ["b-1", "c-1"], out - out0
+        Dir.rmdir "sub1"
+
+        assert_equal ["b-1", "c-1"], out - out0
+      end
     end
   end
 
@@ -1837,52 +1843,47 @@ class TestGem < Gem::TestCase
   end
 
   def test_use_gemdeps
-    gem_deps_file = "gem.deps.rb".tap(&Gem::UNTAINT)
-    spec = util_spec "a", 1
-    install_specs spec
+    with_local_bundler_at(Gem.dir) do
+      gem_deps_file = "gem.deps.rb".tap(&Gem::UNTAINT)
+      spec = util_spec "a", 1
+      install_specs spec
 
-    spec = Gem::Specification.find {|s| s == spec }
-    refute spec.activated?
+      spec = Gem::Specification.find {|s| s == spec }
+      refute spec.activated?
 
-    File.open gem_deps_file, "w" do |io|
-      io.write 'gem "a"'
-    end
+      File.open gem_deps_file, "w" do |io|
+        io.write 'gem "a"'
+      end
 
-    assert_nil Gem.gemdeps
+      assert_nil Gem.gemdeps
 
-    Gem.use_gemdeps gem_deps_file
+      Gem.use_gemdeps gem_deps_file
 
-    assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
-    refute_nil Gem.gemdeps
+      assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
+      refute_nil Gem.gemdeps
+    end
   end
 
   def test_use_gemdeps_ENV
-    with_rubygems_gemdeps(nil) do
-      spec = util_spec "a", 1
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps(nil) do
+        spec = util_spec "a", 1
 
-      refute spec.activated?
+        refute spec.activated?
 
-      File.open "gem.deps.rb", "w" do |io|
-        io.write 'gem "a"'
-      end
+        File.open "gem.deps.rb", "w" do |io|
+          io.write 'gem "a"'
+        end
 
-      Gem.use_gemdeps
+        Gem.use_gemdeps
 
-      refute spec.activated?
+        refute spec.activated?
+      end
     end
   end
 
   def test_use_gemdeps_argument_missing
-    e = assert_raise ArgumentError do
-      Gem.use_gemdeps "gem.deps.rb"
-    end
-
-    assert_equal "Unable to find gem dependencies file at gem.deps.rb",
-                 e.message
-  end
-
-  def test_use_gemdeps_argument_missing_match_ENV
-    with_rubygems_gemdeps("gem.deps.rb") do
+    with_local_bundler_at(Gem.dir) do
       e = assert_raise ArgumentError do
         Gem.use_gemdeps "gem.deps.rb"
       end
@@ -1892,85 +1893,108 @@ class TestGem < Gem::TestCase
     end
   end
 
+  def test_use_gemdeps_argument_missing_match_ENV
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("gem.deps.rb") do
+        e = assert_raise ArgumentError do
+          Gem.use_gemdeps "gem.deps.rb"
+        end
+
+        assert_equal "Unable to find gem dependencies file at gem.deps.rb",
+                     e.message
+      end
+    end
+  end
+
   def test_use_gemdeps_automatic
-    with_rubygems_gemdeps("-") do
-      spec = util_spec "a", 1
-      install_specs spec
-      spec = Gem::Specification.find {|s| s == spec }
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("-") do
+        spec = util_spec "a", 1
+        install_specs spec
+        spec = Gem::Specification.find {|s| s == spec }
 
-      refute spec.activated?
+        refute spec.activated?
 
-      File.open "Gemfile", "w" do |io|
-        io.write 'gem "a"'
-      end
+        File.open "Gemfile", "w" do |io|
+          io.write 'gem "a"'
+        end
 
-      Gem.use_gemdeps
+        Gem.use_gemdeps
 
-      assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
+        assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
+      end
     end
   end
 
   def test_use_gemdeps_automatic_missing
-    with_rubygems_gemdeps("-") do
-      Gem.use_gemdeps
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("-") do
+        Gem.use_gemdeps
 
-      assert true # count
+        assert true # count
+      end
     end
   end
 
   def test_use_gemdeps_disabled
-    with_rubygems_gemdeps("") do
-      spec = util_spec "a", 1
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("") do
+        spec = util_spec "a", 1
 
-      refute spec.activated?
+        refute spec.activated?
 
-      File.open "gem.deps.rb", "w" do |io|
-        io.write 'gem "a"'
-      end
+        File.open "gem.deps.rb", "w" do |io|
+          io.write 'gem "a"'
+        end
 
-      Gem.use_gemdeps
+        Gem.use_gemdeps
 
-      refute spec.activated?
+        refute spec.activated?
+      end
     end
   end
 
   def test_use_gemdeps_missing_gem
-    with_rubygems_gemdeps("x") do
-      File.open "x", "w" do |io|
-        io.write 'gem "a"'
-      end
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("x") do
+        File.open "x", "w" do |io|
+          io.write 'gem "a"'
+        end
 
-      expected = <<-EXPECTED
+        expected = <<-EXPECTED
 Could not find gem 'a' in locally installed gems.
 You may need to `bundle install` to install missing gems
 
       EXPECTED
 
-      Gem::Deprecate.skip_during do
-        actual_stdout, actual_stderr = capture_output do
-          Gem.use_gemdeps
+        Gem::Deprecate.skip_during do
+          actual_stdout, actual_stderr = capture_output do
+            Gem.use_gemdeps
+          end
+          assert_empty actual_stdout
+          assert_equal(expected, actual_stderr)
         end
-        assert_empty actual_stdout
-        assert_equal(expected, actual_stderr)
       end
     end
   end
 
   def test_use_gemdeps_specific
-    with_rubygems_gemdeps("x") do
-      spec = util_spec "a", 1
-      install_specs spec
+    with_local_bundler_at(Gem.dir) do
+      with_rubygems_gemdeps("x") do
+        spec = util_spec "a", 1
+        install_specs spec
 
-      spec = Gem::Specification.find {|s| s == spec }
-      refute spec.activated?
+        spec = Gem::Specification.find {|s| s == spec }
+        refute spec.activated?
 
-      File.open "x", "w" do |io|
-        io.write 'gem "a"'
-      end
+        File.open "x", "w" do |io|
+          io.write 'gem "a"'
+        end
 
-      Gem.use_gemdeps
+        Gem.use_gemdeps
 
-      assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
+        assert_equal add_bundler_full_name(%W[a-1]), loaded_spec_names
+      end
     end
   end
 
@@ -2109,4 +2133,22 @@ You may need to `bundle install` to install missing gems
   ensure
     ENV["RUBYGEMS_GEMDEPS"] = rubygems_gemdeps
   end
+
+  def with_local_bundler_at(path)
+    require "bundler"
+
+    # If bundler gemspec exists, pretend it's installed
+    bundler_gemspec = File.expand_path("../../bundler/bundler.gemspec", __dir__)
+    if File.exist?(bundler_gemspec)
+      target_gemspec_location = "#{path}/specifications/bundler-#{Bundler::VERSION}.gemspec"
+
+      FileUtils.mkdir_p File.dirname(target_gemspec_location)
+
+      File.write target_gemspec_location, Gem::Specification.load(bundler_gemspec).to_ruby_for_cache
+    end
+
+    yield
+  ensure
+    Bundler.reset!
+  end
 end
diff --git a/test/rubygems/test_gem_commands_owner_command.rb b/test/rubygems/test_gem_commands_owner_command.rb
index ca77041000..32bfbb7a66 100644
--- a/test/rubygems/test_gem_commands_owner_command.rb
+++ b/test/rubygems/test_gem_commands_owner_command.rb
@@ -36,7 +36,7 @@ class TestGemCommandsOwnerCommand < Gem::TestCase
 - id: 4
 EOF
 
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
 
     use_ui @stub_ui do
       @cmd.show_owners("freewill")
@@ -66,7 +66,7 @@ EOF
 - id: 4
 EOF
 
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
 
     assert_raise Psych::DisallowedClass do
       use_ui @ui do
@@ -80,7 +80,7 @@ EOF
     host = "http://rubygems.example"
     ENV["RUBYGEMS_HOST"] = host
 
-    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners.yaml"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
 
     use_ui @stub_ui do
       @cmd.show_owners("freewill")
@@ -95,7 +95,7 @@ EOF
     host = "http://rubygems.example"
     @cmd.host = host
 
-    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners.yaml"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
 
     use_ui @stub_ui do
       @cmd.show_owners("freewill")
@@ -107,7 +107,7 @@ EOF
 
   def test_show_owners_denied
     response = "You don't have permission to push to this gem"
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = [response, 403, "Forbidden"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: response, code: 403, msg: "Forbidden")
 
     assert_raise Gem::MockGemUi::TermError do
       use_ui @stub_ui do
@@ -118,9 +118,32 @@ EOF
     assert_match response, @stub_ui.output
   end
 
+  def test_show_owners_permanent_redirect
+    host = "http://rubygems.example"
+    ENV["RUBYGEMS_HOST"] = host
+    path = "/api/v1/gems/freewill/owners.yaml"
+    redirected_uri = "https://rubygems.example#{path}"
+
+    @stub_fetcher.data["#{host}#{path}"] = HTTPResponseFactory.create(
+      body: "",
+      code: "301",
+      msg: "Moved Permanently",
+      headers: { "location" => redirected_uri }
+    )
+
+    assert_raise Gem::MockGemUi::TermError do
+      use_ui @stub_ui do
+        @cmd.show_owners("freewill")
+      end
+    end
+
+    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
+    assert_match response, @stub_ui.output
+  end
+
   def test_show_owners_key
     response = "- email: user1@example.com\n"
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
     File.open Gem.configuration.credentials_path, "a" do |f|
       f.write ":other: 701229f217cdf23b1344c7b4b54ca97"
     end
@@ -134,7 +157,7 @@ EOF
 
   def test_add_owners
     response = "Owner added successfully."
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
 
     use_ui @stub_ui do
       @cmd.add_owners("freewill", ["user-new1@example.com"])
@@ -149,12 +172,33 @@ EOF
 
   def test_add_owners_denied
     response = "You don't have permission to push to this gem"
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 403, "Forbidden"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 403, msg: "Forbidden")
+
+    use_ui @stub_ui do
+      @cmd.add_owners("freewill", ["user-new1@example.com"])
+    end
+
+    assert_match response, @stub_ui.output
+  end
+
+  def test_add_owners_permanent_redirect
+    host = "http://rubygems.example"
+    ENV["RUBYGEMS_HOST"] = host
+    path = "/api/v1/gems/freewill/owners"
+    redirected_uri = "https://rubygems.example#{path}"
+
+    @stub_fetcher.data["#{host}#{path}"] = HTTPResponseFactory.create(
+      body: "",
+      code: "308",
+      msg: "Permanent Redirect",
+      headers: { "location" => redirected_uri }
+    )
 
     use_ui @stub_ui do
       @cmd.add_owners("freewill", ["user-new1@example.com"])
     end
 
+    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
     assert_match response, @stub_ui.output
   end
 
@@ -162,8 +206,8 @@ EOF
     host = "http://rubygems.example"
     add_owner_response = "Owner added successfully."
     show_owners_response = "- email: user1@example.com\n"
-    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners"] = [add_owner_response, 200, "OK"]
-    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners.yaml"] = [show_owners_response, 200, "OK"]
+    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: add_owner_response, code: 200, msg: "OK")
+    @stub_fetcher.data["#{host}/api/v1/gems/freewill/owners.yaml"] = HTTPResponseFactory.create(body: show_owners_response, code: 200, msg: "OK")
 
     @cmd.handle_options %W[--host #{host} --add user-new1@example.com freewill]
 
@@ -178,7 +222,7 @@ EOF
 
   def test_add_owners_key
     response = "Owner added successfully."
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
     File.open Gem.configuration.credentials_path, "a" do |f|
       f.write ":other: 701229f217cdf23b1344c7b4b54ca97"
     end
@@ -192,7 +236,7 @@ EOF
 
   def test_remove_owners
     response = "Owner removed successfully."
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
 
     use_ui @stub_ui do
       @cmd.remove_owners("freewill", ["user-remove1@example.com"])
@@ -207,7 +251,7 @@ EOF
 
   def test_remove_owners_denied
     response = "You don't have permission to push to this gem"
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 403, "Forbidden"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 403, msg: "Forbidden")
 
     use_ui @stub_ui do
       @cmd.remove_owners("freewill", ["user-remove1@example.com"])
@@ -216,9 +260,46 @@ EOF
     assert_match response, @stub_ui.output
   end
 
+  def test_remove_owners_permanent_redirect
+    host = "http://rubygems.example"
+    ENV["RUBYGEMS_HOST"] = host
+    path = "/api/v1/gems/freewill/owners"
+    redirected_uri = "https://rubygems.example#{path}"
+    @stub_fetcher.data["#{host}#{path}"] = HTTPResponseFactory.create(
+      body: "",
+      code: "308",
+      msg: "Permanent Redirect",
+      headers: { "location" => redirected_uri }
+    )
+
+    use_ui @stub_ui do
+      @cmd.remove_owners("freewill", ["user-remove1@example.com"])
+    end
+
+    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
+    assert_match response, @stub_ui.output
+
+    path = "/api/v1/gems/freewill/owners"
+    redirected_uri = "https://rubygems.example#{path}"
+
+    @stub_fetcher.data["#{host}#{path}"] = HTTPResponseFactory.create(
+      body: "",
+      code: "308",
+      msg: "Permanent Redirect",
+      headers: { "location" => redirected_uri }
+    )
+
+    use_ui @stub_ui do
+      @cmd.add_owners("freewill", ["user-new1@example.com"])
+    end
+
+    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
+    assert_match response, @stub_ui.output
+  end
+
   def test_remove_owners_key
     response = "Owner removed successfully."
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 200, msg: "OK")
     File.open Gem.configuration.credentials_path, "a" do |f|
       f.write ":other: 701229f217cdf23b1344c7b4b54ca97"
     end
@@ -232,7 +313,7 @@ EOF
 
   def test_remove_owners_missing
     response = "Owner could not be found."
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 404, "Not Found"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 404, msg: "Not Found")
 
     use_ui @stub_ui do
       @cmd.remove_owners("freewill", ["missing@example"])
@@ -246,8 +327,8 @@ EOF
     response_success = "Owner added successfully."
 
     @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [
-      [response_fail, 401, "Unauthorized"],
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_fail, code: 401, msg: "Unauthorized"),
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
 
     @otp_ui = Gem::MockGemUi.new "111111\n"
@@ -263,7 +344,7 @@ EOF
 
   def test_otp_verified_failure
     response = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
-    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [response, 401, "Unauthorized"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = HTTPResponseFactory.create(body: response, code: 401, msg: "Unauthorized")
 
     @otp_ui = Gem::MockGemUi.new "111111\n"
     use_ui @otp_ui do
@@ -281,10 +362,10 @@ EOF
     response_success   = "Owner removed successfully."
 
     @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [
-      [response_forbidden, 403, "Forbidden"],
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_forbidden, code: 403, msg: "Forbidden"),
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
-    @stub_fetcher.data["#{Gem.host}/api/v1/api_key"] = ["", 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/api_key"] = HTTPResponseFactory.create(body: "", code: 200, msg: "OK")
     @cmd.instance_variable_set :@scope, :remove_owner
 
     @stub_ui = Gem::MockGemUi.new "some@mail.com\npass\n"
@@ -305,10 +386,10 @@ EOF
     response_success   = "Owner added successfully."
 
     @stub_fetcher.data["#{Gem.host}/api/v1/gems/freewill/owners"] = [
-      [response_forbidden, 403, "Forbidden"],
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_forbidden, code: 403, msg: "Forbidden"),
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
-    @stub_fetcher.data["#{Gem.host}/api/v1/api_key"] = ["", 200, "OK"]
+    @stub_fetcher.data["#{Gem.host}/api/v1/api_key"] = HTTPResponseFactory.create(body: "", code: 200, msg: "OK")
     @cmd.instance_variable_set :@scope, :add_owner
 
     @stub_ui = Gem::MockGemUi.new "some@mail.com\npass\n"
diff --git a/test/rubygems/test_gem_commands_push_command.rb b/test/rubygems/test_gem_commands_push_command.rb
index f38a2ae7a1..ef7730558d 100644
--- a/test/rubygems/test_gem_commands_push_command.rb
+++ b/test/rubygems/test_gem_commands_push_command.rb
@@ -68,7 +68,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
 
   def test_execute
     @response = "Successfully registered gem: freewill (1.0.0)"
-    @fetcher.data["#{Gem.host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{Gem.host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
 
     @cmd.options[:args] = [@path]
 
@@ -84,7 +84,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     host = "https://other.example"
 
     @response = "Successfully registered gem: freewill (1.0.0)"
-    @fetcher.data["#{host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
     @fetcher.data["#{Gem.host}/api/v1/gems"] =
       ["fail", 500, "Internal Server Error"]
 
@@ -105,7 +105,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     end
 
     @response = "Successfully registered gem: freewill (1.0.0)"
-    @fetcher.data["#{@spec.metadata['allowed_push_host']}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@spec.metadata['allowed_push_host']}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
     @fetcher.data["#{Gem.host}/api/v1/gems"] =
       ["fail", 500, "Internal Server Error"]
 
@@ -136,7 +136,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     ENV["RUBYGEMS_HOST"] = @host
     Gem.configuration.disable_default_gem_server = true
     @response = "Successfully registered gem: freewill (1.0.0)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
 
     send_battery
   end
@@ -163,14 +163,14 @@ class TestGemCommandsPushCommand < Gem::TestCase
     FileUtils.rm Gem.configuration.credentials_path
 
     @response = "Successfully registered gem: freebird (1.0.1)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
 
     send_battery
   end
 
   def test_sending_gem
     @response = "Successfully registered gem: freewill (1.0.0)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
 
     send_battery
   end
@@ -197,7 +197,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     FileUtils.rm Gem.configuration.credentials_path
 
     @response = "Successfully registered gem: freebird (1.0.1)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
     send_battery
   end
 
@@ -212,7 +212,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     ENV["GEM_HOST_API_KEY"] = "PRIVKEY"
 
     @response = "Successfully registered gem: freebird (1.0.1)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
     send_battery
   end
 
@@ -238,7 +238,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     FileUtils.rm Gem.configuration.credentials_path
 
     @response = "Successfully registered gem: freebird (1.0.1)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
     send_battery
   end
 
@@ -309,7 +309,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
     FileUtils.rm Gem.configuration.credentials_path
 
     @response = "Successfully registered gem: freebird (1.0.1)"
-    @fetcher.data["#{host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
 
     # do not set @host
     use_ui(@ui) { @cmd.send_gem(@path) }
@@ -325,6 +325,27 @@ class TestGemCommandsPushCommand < Gem::TestCase
     assert_match @response, @ui.output
   end
 
+  def test_sending_gem_to_host_permanent_redirect
+    @host = "http://rubygems.example"
+    redirected_uri = "https://rubygems.example/api/v1/gems"
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(
+      body: "",
+      code: 308,
+      msg: "Permanent Redirect",
+      headers: { "Location" => redirected_uri }
+    )
+
+    assert_raise Gem::MockGemUi::TermError do
+      use_ui @ui do
+        @cmd.instance_variable_set :@host, @host
+        @cmd.send_gem(@path)
+      end
+    end
+
+    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
+    assert_match response, @ui.output
+  end
+
   def test_raises_error_with_no_arguments
     def @cmd.sign_in(*); end
     assert_raise Gem::CommandLineError do
@@ -334,7 +355,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
 
   def test_sending_gem_denied
     response = "You don't have permission to push to this gem"
-    @fetcher.data["#{@host}/api/v1/gems"] = [response, 403, "Forbidden"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: response, code: 403, msg: "Forbidden")
     @cmd.instance_variable_set :@host, @host
 
     assert_raise Gem::MockGemUi::TermError do
@@ -348,7 +369,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
 
   def test_sending_gem_key
     @response = "Successfully registered gem: freewill (1.0.0)"
-    @fetcher.data["#{@host}/api/v1/gems"] = [@response, 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/gems"] = HTTPResponseFactory.create(body: @response, code: 200, msg: "OK")
     File.open Gem.configuration.credentials_path, "a" do |f|
       f.write ":other: 701229f217cdf23b1344c7b4b54ca97"
     end
@@ -367,8 +388,8 @@ class TestGemCommandsPushCommand < Gem::TestCase
     response_success = "Successfully registered gem: freewill (1.0.0)"
 
     @fetcher.data["#{Gem.host}/api/v1/gems"] = [
-      [response_fail, 401, "Unauthorized"],
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_fail, code: 401, msg: "Unauthorized"),
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
 
     @otp_ui = Gem::MockGemUi.new "111111\n"
@@ -384,7 +405,7 @@ class TestGemCommandsPushCommand < Gem::TestCase
 
   def test_otp_verified_failure
     response = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
-    @fetcher.data["#{Gem.host}/api/v1/gems"] = [response, 401, "Unauthorized"]
+    @fetcher.data["#{Gem.host}/api/v1/gems"] = HTTPResponseFactory.create(body: response, code: 401, msg: "Unauthorized")
 
     @otp_ui = Gem::MockGemUi.new "111111\n"
     assert_raise Gem::MockGemUi::TermError do
@@ -405,12 +426,12 @@ class TestGemCommandsPushCommand < Gem::TestCase
     response_success   = "Successfully registered gem: freewill (1.0.0)"
 
     @fetcher.data["#{@host}/api/v1/gems"] = [
-      [response_mfa_enabled, 401, "Unauthorized"],
-      [response_forbidden, 403, "Forbidden"],
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_mfa_enabled, code: 401, msg: "Unauthorized"),
+      HTTPResponseFactory.create(body: response_forbidden, code: 403, msg: "Forbidden"),
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
 
-    @fetcher.data["#{@host}/api/v1/api_key"] = ["", 200, "OK"]
+    @fetcher.data["#{@host}/api/v1/api_key"] = HTTPResponseFactory.create(body: "", code: 200, msg: "OK")
     @cmd.instance_variable_set :@host, @host
     @cmd.instance_variable_set :@scope, :push_rubygem
 
@@ -438,16 +459,16 @@ class TestGemCommandsPushCommand < Gem::TestCase
     response_profile     = "mfa: disabled\n"
 
     @fetcher.data["#{@host}/api/v1/gems"] = [
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
 
     @fetcher.data["#{@host}/api/v1/api_key"] = [
-      [response_mfa_enabled, 401, "Unauthorized"],
-      ["", 200, "OK"],
+      HTTPResponseFactory.create(body: response_mfa_enabled, code: 401, msg: "Unauthorized"),
+      HTTPResponseFactory.create(body: "", code: 200, msg: "OK"),
     ]
 
     @fetcher.data["#{@host}/api/v1/profile/me.yaml"] = [
-      [response_profile, 200, "OK"],
+      HTTPResponseFactory.create(body: response_profile, code: 200, msg: "OK"),
     ]
 
     @cmd.instance_variable_set :@scope, :push_rubygem
diff --git a/test/rubygems/test_gem_commands_signin_command.rb b/test/rubygems/test_gem_commands_signin_command.rb
index ce745bff20..281e4f9eac 100644
--- a/test/rubygems/test_gem_commands_signin_command.rb
+++ b/test/rubygems/test_gem_commands_signin_command.rb
@@ -71,6 +71,31 @@ class TestGemCommandsSigninCommand < Gem::TestCase
     assert_equal api_key, credentials[host]
   end
 
+  def test_execute_with_host_permanent_redirect
+    host = "http://rubygems.example/"
+    ENV["RUBYGEMS_HOST"] = host
+    path = "/api/v1/api_key"
+    redirected_uri = "http://rubygems.example#{path}"
+    fetcher = Gem::FakeFetcher.new
+    fetcher.data["#{host}#{path}"] = HTTPResponseFactory.create(
+      body: "",
+      code: "308",
+      msg: "Permanent Redirect",
+      headers: { "location" => redirected_uri }
+    )
+    Gem::RemoteFetcher.fetcher = fetcher
+    ui = Gem::MockGemUi.new("you@example.com\nsecret\n\n\n\n\n\n\n\n\n")
+
+    assert_raise Gem::MockGemUi::TermError do
+      use_ui ui do
+        @cmd.execute
+      end
+    end
+
+    response = "The request has redirected permanently to #{redirected_uri}. Please check your defined push host URL."
+    assert_match response, ui.output
+  end
+
   def test_execute_with_valid_creds_set_for_default_host
     util_capture { @cmd.execute }
 
@@ -186,7 +211,7 @@ class TestGemCommandsSigninCommand < Gem::TestCase
     # Set the expected response for the Web-API supplied
     ENV["RUBYGEMS_HOST"]       = host
     data_key                   = "#{ENV['RUBYGEMS_HOST']}/api/v1/api_key"
-    fetcher.data[data_key]     = [api_key, 200, "OK"]
+    fetcher.data[data_key]     = HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
 
     use_ui key_name_ui do
       @cmd.execute
@@ -209,8 +234,8 @@ class TestGemCommandsSigninCommand < Gem::TestCase
 
   def util_capture(ui_stub = nil, host = nil, api_key = nil, fetcher = Gem::FakeFetcher.new, mfa_level = "disabled", warning = nil)
     api_key        ||= "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
-    response         = [api_key, 200, "OK"]
-    profile_response = [ "mfa: #{mfa_level}\nwarning: #{warning}" , 200, "OK"]
+    response         = HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
+    profile_response = HTTPResponseFactory.create(body: "mfa: #{mfa_level}\nwarning: #{warning}", code: 200, msg: "OK")
     email            = "you@example.com"
     password         = "secret"
 
diff --git a/test/rubygems/test_gem_commands_yank_command.rb b/test/rubygems/test_gem_commands_yank_command.rb
index 878b52416e..d14395a75e 100644
--- a/test/rubygems/test_gem_commands_yank_command.rb
+++ b/test/rubygems/test_gem_commands_yank_command.rb
@@ -43,7 +43,7 @@ class TestGemCommandsYankCommand < Gem::TestCase
 
   def test_execute
     yank_uri = "http://example/api/v1/gems/yank"
-    @fetcher.data[yank_uri] = ["Successfully yanked", 200, "OK"]
+    @fetcher.data[yank_uri] = HTTPResponseFactory.create(body: "Successfully yanked", code: 200, msg: "OK")
 
     @cmd.options[:args]           = %w[a]
     @cmd.options[:added_platform] = true
@@ -69,8 +69,8 @@ class TestGemCommandsYankCommand < Gem::TestCase
     response_fail = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
     yank_uri = "http://example/api/v1/gems/yank"
     @fetcher.data[yank_uri] = [
-      [response_fail, 401, "Unauthorized"],
-      ["Successfully yanked", 200, "OK"],
+      HTTPResponseFactory.create(body: response_fail, code: 401, msg: "Unauthorized"),
+      HTTPResponseFactory.create(body: "Successfully yanked", code: 200, msg: "OK"),
     ]
 
     @cmd.options[:args]           = %w[a]
@@ -92,7 +92,7 @@ class TestGemCommandsYankCommand < Gem::TestCase
   def test_execute_with_otp_failure
     response = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
     yank_uri = "http://example/api/v1/gems/yank"
-    @fetcher.data[yank_uri] = [response, 401, "Unauthorized"]
+    @fetcher.data[yank_uri] = HTTPResponseFactory.create(body: response, code: 401, msg: "Unauthorized")
 
     @cmd.options[:args]           = %w[a]
     @cmd.options[:added_platform] = true
@@ -111,7 +111,7 @@ class TestGemCommandsYankCommand < Gem::TestCase
 
   def test_execute_key
     yank_uri = "http://example/api/v1/gems/yank"
-    @fetcher.data[yank_uri] = ["Successfully yanked", 200, "OK"]
+    @fetcher.data[yank_uri] = HTTPResponseFactory.create(body: "Successfully yanked", code: 200, msg: "OK")
 
     @cmd.options[:args]    = %w[a]
     @cmd.options[:version] = req("= 1.0")
@@ -129,7 +129,7 @@ class TestGemCommandsYankCommand < Gem::TestCase
   def test_execute_host
     host = "https://other.example"
     yank_uri = "#{host}/api/v1/gems/yank"
-    @fetcher.data[yank_uri] = ["Successfully yanked", 200, "OK"]
+    @fetcher.data[yank_uri] = HTTPResponseFactory.create(body: "Successfully yanked", code: 200, msg: "OK")
 
     @cmd.options[:args]    = %w[a]
     @cmd.options[:version] = req("= 1.0")
@@ -154,11 +154,11 @@ class TestGemCommandsYankCommand < Gem::TestCase
     host               = "http://example"
 
     @fetcher.data["#{host}/api/v1/gems/yank"] = [
-      [response_forbidden, 403, "Forbidden"],
-      [response_success, 200, "OK"],
+      HTTPResponseFactory.create(body: response_forbidden, code: 403, msg: "Forbidden"),
+      HTTPResponseFactory.create(body: response_success, code: 200, msg: "OK"),
     ]
 
-    @fetcher.data["#{host}/api/v1/api_key"] = ["", 200, "OK"]
+    @fetcher.data["#{host}/api/v1/api_key"] = HTTPResponseFactory.create(body: "", code: 200, msg: "OK")
     @cmd.options[:args]           = %w[a]
     @cmd.options[:added_platform] = true
     @cmd.options[:version]        = req("= 1.0")
diff --git a/test/rubygems/test_gem_gemcutter_utilities.rb b/test/rubygems/test_gem_gemcutter_utilities.rb
index 2ca5b402d9..5e59733d5a 100644
--- a/test/rubygems/test_gem_gemcutter_utilities.rb
+++ b/test/rubygems/test_gem_gemcutter_utilities.rb
@@ -93,7 +93,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
 
   def test_sign_in
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
-    util_sign_in [api_key, 200, "OK"]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
 
     assert_match %r{Enter your RubyGems.org credentials.}, @sign_in_ui.output
     assert @fetcher.last_request["authorization"]
@@ -106,7 +106,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
   def test_sign_in_with_host
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
 
-    util_sign_in [api_key, 200, "OK"], "http://example.com", ["http://example.com"]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK"), "http://example.com", ["http://example.com"]
 
     assert_match "Enter your http://example.com credentials.",
                  @sign_in_ui.output
@@ -120,7 +120,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
   def test_sign_in_with_host_nil
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
 
-    util_sign_in [api_key, 200, "OK"], nil, [nil]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK"), nil, [nil]
 
     assert_match "Enter your RubyGems.org credentials.",
                  @sign_in_ui.output
@@ -133,7 +133,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
 
   def test_sign_in_with_host_ENV
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
-    util_sign_in [api_key, 200, "OK"], "http://example.com"
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK"), "http://example.com"
 
     assert_match "Enter your http://example.com credentials.",
                  @sign_in_ui.output
@@ -148,7 +148,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
     Gem.configuration.rubygems_api_key = api_key
 
-    util_sign_in [api_key, 200, "OK"]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
 
     assert_equal "", @sign_in_ui.output
   end
@@ -157,7 +157,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
     Gem.configuration.api_keys[:KEY] = "other"
     @cmd.options[:key] = :KEY
-    util_sign_in [api_key, 200, "OK"]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
 
     assert_equal "", @sign_in_ui.output
   end
@@ -169,7 +169,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
     File.open Gem.configuration.credentials_path, "w" do |f|
       f.write Hash[:other_api_key, other_api_key].to_yaml
     end
-    util_sign_in [api_key, 200, "OK"]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
 
     assert_match %r{Enter your RubyGems.org credentials.}, @sign_in_ui.output
     assert_match %r{Signed in.}, @sign_in_ui.output
@@ -181,7 +181,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
 
   def test_sign_in_with_bad_credentials
     assert_raise Gem::MockGemUi::TermError do
-      util_sign_in ["Access Denied.", 403, "Forbidden"]
+      util_sign_in HTTPResponseFactory.create(body: "Access Denied.", code: 403, msg: "Forbidden")
     end
 
     assert_match %r{Enter your RubyGems.org credentials.}, @sign_in_ui.output
@@ -192,7 +192,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
     ENV["GEM_HOST_OTP_CODE"] = "111111"
     api_key = "a5fdbb6ba150cbb83aad2bb2fede64cf040453903"
 
-    util_sign_in [api_key, 200, "OK"]
+    util_sign_in HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
 
     assert_match "Signed in with API key:", @sign_in_ui.output
     assert_equal "111111", @fetcher.last_request["OTP"]
@@ -204,7 +204,11 @@ class TestGemGemcutterUtilities < Gem::TestCase
 
     util_sign_in(proc do
       @call_count ||= 0
-      (@call_count += 1).odd? ? [response_fail, 401, "Unauthorized"] : [api_key, 200, "OK"]
+      if (@call_count += 1).odd?
+        HTTPResponseFactory.create(body: response_fail, code: 401, msg: "Unauthorized")
+      else
+        HTTPResponseFactory.create(body: api_key, code: 200, msg: "OK")
+      end
     end, nil, [], "111111\n")
 
     assert_match "You have enabled multi-factor authentication. Please enter OTP code.", @sign_in_ui.output
@@ -217,7 +221,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
     response = "You have enabled multifactor authentication but your request doesn't have the correct OTP code. Please check it and retry."
 
     assert_raise Gem::MockGemUi::TermError do
-      util_sign_in [response, 401, "Unauthorized"], nil, [], "111111\n"
+      util_sign_in HTTPResponseFactory.create(body: response, code: 401, msg: "Unauthorized"), nil, [], "111111\n"
     end
 
     assert_match "You have enabled multi-factor authentication. Please enter OTP code.", @sign_in_ui.output
@@ -229,7 +233,7 @@ class TestGemGemcutterUtilities < Gem::TestCase
   def util_sign_in(response, host = nil, args = [], extra_input = "")
     email            = "you@example.com"
     password         = "secret"
-    profile_response = [ "mfa: disabled\n" , 200, "OK"]
+    profile_response = HTTPResponseFactory.create(body: "mfa: disabled\n", code: 200, msg: "OK")
 
     if host
       ENV["RUBYGEMS_HOST"] = host
diff --git a/test/rubygems/test_gem_package.rb b/test/rubygems/test_gem_package.rb
index 9295f42dba..eebe4d86d0 100644
--- a/test/rubygems/test_gem_package.rb
+++ b/test/rubygems/test_gem_package.rb
@@ -510,6 +510,21 @@ class TestGemPackage < Gem::Package::TarTestCase
     assert_path_exist @destination
   end
 
+  def test_extract_file_permissions
+    pend "chmod not supported" if win_platform?
+
+    gem_with_long_permissions = File.expand_path("packages/Bluebie-legs-0.6.2.gem", __dir__)
+
+    package = Gem::Package.new gem_with_long_permissions
+
+    package.extract_files @destination
+
+    filepath = File.join @destination, "README.rdoc"
+    assert_path_exist filepath
+
+    assert_equal 0104444, File.stat(filepath).mode
+  end
+
   def test_extract_tar_gz_absolute
     package = Gem::Package.new @gem
 
diff --git a/test/rubygems/test_gem_platform.rb b/test/rubygems/test_gem_platform.rb
index 576f150219..61547d8972 100644
--- a/test/rubygems/test_gem_platform.rb
+++ b/test/rubygems/test_gem_platform.rb
@@ -333,6 +333,34 @@ class TestGemPlatform < Gem::TestCase
     refute(arm_linux_uclibceabi === arm_linux_eabi, "linux-uclibceabi =~ linux-eabi")
   end
 
+  def test_eabi_and_nil_version_combination_strictness
+    arm_linux = Gem::Platform.new "arm-linux"
+    arm_linux_eabi = Gem::Platform.new "arm-linux-eabi"
+    arm_linux_eabihf = Gem::Platform.new "arm-linux-eabihf"
+    arm_linux_gnueabi = Gem::Platform.new "arm-linux-gnueabi"
+    arm_linux_gnueabihf = Gem::Platform.new "arm-linux-gnueabihf"
+    arm_linux_musleabi = Gem::Platform.new "arm-linux-musleabi"
+    arm_linux_musleabihf = Gem::Platform.new "arm-linux-musleabihf"
+    arm_linux_uclibceabi = Gem::Platform.new "arm-linux-uclibceabi"
+    arm_linux_uclibceabihf = Gem::Platform.new "arm-linux-uclibceabihf"
+
+    # generic arm host runtime with eabi modifier accepts generic arm gems
+    assert(arm_linux === arm_linux_eabi, "arm-linux =~ arm-linux-eabi")
+    assert(arm_linux === arm_linux_eabihf, "arm-linux =~ arm-linux-eabihf")
+
+    # explicit gnu arm host runtime with eabi modifier accepts generic arm gems
+    assert(arm_linux === arm_linux_gnueabi, "arm-linux =~ arm-linux-gnueabi")
+    assert(arm_linux === arm_linux_gnueabihf, "arm-linux =~ arm-linux-gnueabihf")
+
+    # musl arm host runtime accepts libc-generic or statically linked gems...
+    assert(arm_linux === arm_linux_musleabi, "arm-linux =~ arm-linux-musleabi")
+    assert(arm_linux === arm_linux_musleabihf, "arm-linux =~ arm-linux-musleabihf")
+
+    # other libc arm hosts are not glibc compatible
+    refute(arm_linux === arm_linux_uclibceabi, "arm-linux =~ arm-linux-uclibceabi")
+    refute(arm_linux === arm_linux_uclibceabihf, "arm-linux =~ arm-linux-uclibceabihf")
+  end
+
   def test_equals3_cpu_arm
     arm   = Gem::Platform.new "arm-linux"
     armv5 = Gem::Platform.new "armv5-linux"
@@ -452,6 +480,13 @@ class TestGemPlatform < Gem::TestCase
     assert_equal 1, result.scan(/@version=/).size
   end
 
+  def test_gem_platform_match_with_string_argument
+    util_set_arch "x86_64-linux-musl"
+
+    assert(Gem::Platform.match(Gem::Platform.new("x86_64-linux")), "should match Gem::Platform")
+    assert(Gem::Platform.match("x86_64-linux"), "should match String platform")
+  end
+
   def assert_local_match(name)
     assert_match Gem::Platform.local, name
   end
diff --git a/test/rubygems/test_gem_resolver.rb b/test/rubygems/test_gem_resolver.rb
index c816d5484b..54497c6e4f 100644
--- a/test/rubygems/test_gem_resolver.rb
+++ b/test/rubygems/test_gem_resolver.rb
@@ -391,6 +391,39 @@ class TestGemResolver < Gem::TestCase
     end
   end
 
+  def test_pick_generic_linux_variants_on_musl_linux
+    util_set_arch "aarch64-linux-musl" do
+      is = Gem::Resolver::IndexSpecification
+
+      linux = Gem::Platform.new("aarch64-linux")
+
+      spec_fetcher do |fetcher|
+        fetcher.spec "libv8-node", "15.14.0.1" do |s|
+          s.platform = linux
+        end
+
+        fetcher.spec "libv8-node", "15.14.0.1"
+      end
+
+      v15 = v("15.14.0.1")
+      source = Gem::Source.new @gem_repo
+
+      s = set
+
+      v15_ruby = is.new s, "libv8-node", v15, source, Gem::Platform::RUBY
+      v15_linux = is.new s, "libv8-node", v15, source, linux.to_s
+
+      s.add v15_linux
+      s.add v15_ruby
+
+      ad = make_dep "libv8-node", "= 15.14.0.1"
+
+      res = Gem::Resolver.new([ad], s)
+
+      assert_resolves_to [v15_linux.spec], res
+    end
+  end
+
   def test_only_returns_spec_once
     a1 = util_spec "a", "1", "c" => "= 1"
     b1 = util_spec "b", "1", "c" => "= 1"
diff --git a/test/rubygems/test_require.rb b/test/rubygems/test_require.rb
index 6135acea92..222bdcfb28 100644
--- a/test/rubygems/test_require.rb
+++ b/test/rubygems/test_require.rb
@@ -252,9 +252,9 @@ class TestGemRequire < Gem::TestCase
     # Activates a-1, but not b-1 and b-2
     assert_require "test_gem_require_a"
     assert_equal %w[a-1], loaded_spec_names
-    assert $LOAD_PATH.include? a1.load_paths[0]
-    refute $LOAD_PATH.include? b1.load_paths[0]
-    refute $LOAD_PATH.include? b2.load_paths[0]
+    assert $LOAD_PATH.include? a1.full_require_paths[0]
+    refute $LOAD_PATH.include? b1.full_require_paths[0]
+    refute $LOAD_PATH.include? b2.full_require_paths[0]
 
     assert_equal unresolved_names, ["b (>= 1)"]
 
@@ -265,13 +265,13 @@ class TestGemRequire < Gem::TestCase
     # and as a result #gem_original_require returns false.
     refute require("benchmark"), "the benchmark stdlib should be recognized as already loaded"
 
-    assert_includes $LOAD_PATH, b2.load_paths[0]
+    assert_includes $LOAD_PATH, b2.full_require_paths[0]
     assert_includes $LOAD_PATH, rubylibdir
     message = proc {
       "this test relies on the b-2 gem lib/ to be before stdlib to make sense\n" +
         $LOAD_PATH.pretty_inspect
     }
-    assert_operator $LOAD_PATH.index(b2.load_paths[0]), :<, $LOAD_PATH.index(rubylibdir), message
+    assert_operator $LOAD_PATH.index(b2.full_require_paths[0]), :<, $LOAD_PATH.index(rubylibdir), message
 
     # We detected that we should activate b-2, so we did so, but
     # then #gem_original_require decided "I've already got some benchmark.rb" loaded.
diff --git a/test/rubygems/utilities.rb b/test/rubygems/utilities.rb
index c01f7acd48..8b9fa98e3d 100644
--- a/test/rubygems/utilities.rb
+++ b/test/rubygems/utilities.rb
@@ -54,13 +54,21 @@ class Gem::FakeFetcher
       raise Gem::RemoteFetcher::FetchError.new("no data for #{path}", path)
     end
 
-    if @data[path].kind_of?(Array) && @data[path].first.kind_of?(Array)
+    if @data[path].kind_of?(Array)
       @data[path].shift
     else
       @data[path]
     end
   end
 
+  def create_response(uri)
+    data = find_data(uri)
+    response = data.respond_to?(:call) ? data.call : data
+    raise TypeError, "#{response.class} is not a type of Net::HTTPResponse" unless response.kind_of?(Net::HTTPResponse)
+
+    response
+  end
+
   def fetch_path(path, mtime = nil, head = false)
     data = find_data(path)
 
@@ -85,26 +93,16 @@ class Gem::FakeFetcher
 
   # Thanks, FakeWeb!
   def open_uri_or_path(path)
-    data = find_data(path)
-    body, code, msg = data
+    find_data(path)
 
-    response = Net::HTTPResponse.send(:response_class, code.to_s).new("1.0", code.to_s, msg)
-    response.instance_variable_set(:@body, body)
-    response.instance_variable_set(:@read, true)
-    response
+    create_response(uri)
   end
 
   def request(uri, request_class, last_modified = nil)
-    data = find_data(uri)
-    body, code, msg = (data.respond_to?(:call) ? data.call : data)
-
     @last_request = request_class.new uri.request_uri
     yield @last_request if block_given?
 
-    response = Net::HTTPResponse.send(:response_class, code.to_s).new("1.0", code.to_s, msg)
-    response.instance_variable_set(:@body, body)
-    response.instance_variable_set(:@read, true)
-    response
+    create_response(uri)
   end
 
   def pretty_print(q) # :nodoc:
@@ -164,6 +162,30 @@ class Gem::FakeFetcher
   end
 end
 
+##
+# The HTTPResponseFactory allows easy creation of Net::HTTPResponse instances in RubyGems tests:
+#
+# Example:
+#
+#   HTTPResponseFactory.create(
+#     body: "",
+#     code: 301,
+#     msg: "Moved Permanently",
+#     headers: { "location" => "http://example.com" }
+#   )
+#
+
+class HTTPResponseFactory
+  def self.create(body:, code:, msg:, headers: {})
+    response = Net::HTTPResponse.send(:response_class, code.to_s).new("1.0", code.to_s, msg)
+    response.instance_variable_set(:@body, body)
+    response.instance_variable_set(:@read, true)
+    headers.each {|name, value| response[name] = value }
+
+    response
+  end
+end
+
 # :stopdoc:
 class Gem::RemoteFetcher
   def self.fetcher=(fetcher)