From 73fc703f7cbb2e6dfd50897d26b37fe8e76064e3 Mon Sep 17 00:00:00 2001
From: drbrain <drbrain@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 30 Nov 2013 23:27:52 +0000
Subject: [PATCH] * lib/rubygems:  Update to RubyGems master 66e5c39.  Notable
 changes:

  Implement gem.deps.rb (Gemfile) .lock support

  Fixed `gem uninstall` for a relative directory in GEM_HOME.

* test/rubygems:  ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 ChangeLog                                     |  10 ++
 lib/rubygems.rb                               |   4 +-
 lib/rubygems/basic_specification.rb           |  22 +++-
 lib/rubygems/ext/builder.rb                   |   2 +-
 lib/rubygems/ext/rake_builder.rb              |   2 +-
 lib/rubygems/rdoc.rb                          |   2 +-
 lib/rubygems/request_set.rb                   |  20 +++-
 lib/rubygems/request_set/lockfile.rb          |  25 +++-
 lib/rubygems/resolver/best_set.rb             |  10 ++
 lib/rubygems/resolver/git_set.rb              |  23 ++++
 lib/rubygems/resolver/index_set.rb            |  24 ++++
 lib/rubygems/resolver/lock_set.rb             |  18 ++-
 lib/rubygems/resolver/vendor_set.rb           |  15 +++
 lib/rubygems/source.rb                        |   2 +
 lib/rubygems/source/git.rb                    |  34 +++++-
 lib/rubygems/source/installed.rb              |   3 +-
 lib/rubygems/source/local.rb                  |   3 +-
 lib/rubygems/source/lock.rb                   |  44 +++++++
 lib/rubygems/source/vendor.rb                 |   2 +
 lib/rubygems/specification.rb                 |   2 +-
 lib/rubygems/test_utilities.rb                |  18 +++
 lib/rubygems/validator.rb                     |   1 +
 test/rubygems/test_gem_request_set.rb         |  74 +++++++++++-
 .../rubygems/test_gem_request_set_lockfile.rb |  26 +++++
 test/rubygems/test_gem_resolver_git_set.rb    |  28 +++++
 .../test_gem_resolver_git_specification.rb    |  34 ++++++
 test/rubygems/test_gem_resolver_lock_set.rb   |   7 +-
 test/rubygems/test_gem_source_git.rb          |  39 +++++++
 test/rubygems/test_gem_source_lock.rb         | 107 ++++++++++++++++++
 test/rubygems/test_gem_specification.rb       |  14 +++
 test/rubygems/test_gem_validator.rb           |   9 ++
 31 files changed, 598 insertions(+), 26 deletions(-)
 create mode 100644 lib/rubygems/source/lock.rb
 create mode 100644 test/rubygems/test_gem_source_lock.rb

diff --git a/ChangeLog b/ChangeLog
index ed5261eefb..75b0ae0c5c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Sun Dec  1 08:27:28 2013  Eric Hodel  <drbrain@segment7.net>
+
+	* lib/rubygems:  Update to RubyGems master 66e5c39.  Notable changes:
+
+	  Implement gem.deps.rb (Gemfile) .lock support
+
+	  Fixed `gem uninstall` for a relative directory in GEM_HOME.
+
+	* test/rubygems:  ditto.
+
 Sun Dec  1 06:00:49 2013  Aman Gupta <ruby@tmm1.net>
 
 	* test/ruby/test_gc.rb (test_gc_reason): Force minor GC by consuming
diff --git a/lib/rubygems.rb b/lib/rubygems.rb
index 7570e4ad24..4ff5a0cf4e 100644
--- a/lib/rubygems.rb
+++ b/lib/rubygems.rb
@@ -178,8 +178,8 @@ module Gem
   def self.try_activate path
     # finds the _latest_ version... regardless of loaded specs and their deps
     # if another gem had a requirement that would mean we shouldn't
-    # activate the latest version, then either it would alreaby be activated
-    # or if it was ambigious (and thus unresolved) the code in our custom
+    # activate the latest version, then either it would already be activated
+    # or if it was ambiguous (and thus unresolved) the code in our custom
     # require will try to activate the more specific version.
 
     spec = Gem::Specification.find_inactive_by_path path
diff --git a/lib/rubygems/basic_specification.rb b/lib/rubygems/basic_specification.rb
index cfbfbdde92..bb4fa281a0 100644
--- a/lib/rubygems/basic_specification.rb
+++ b/lib/rubygems/basic_specification.rb
@@ -4,6 +4,16 @@
 
 class Gem::BasicSpecification
 
+  ##
+  # Allows installation of extensions for git: gems.
+
+  attr_writer :base_dir # :nodoc:
+
+  ##
+  # Sets the directory where extensions for this gem will be installed.
+
+  attr_writer :extension_install_dir # :nodoc:
+
   ##
   # The path this gemspec was loaded from.  This attribute is not persisted.
 
@@ -68,8 +78,9 @@ class Gem::BasicSpecification
   #   end
 
   def extension_install_dir
-    File.join base_dir, 'extensions', Gem::Platform.local.to_s,
-              Gem.extension_api_version, full_name
+    @extension_install_dir ||=
+      File.join base_dir, 'extensions', Gem::Platform.local.to_s,
+                Gem.extension_api_version, full_name
   end
 
   def find_full_gem_path # :nodoc:
@@ -141,9 +152,10 @@ class Gem::BasicSpecification
   def loaded_from= path
     @loaded_from   = path && path.to_s
 
-    @full_gem_path = nil
-    @gems_dir      = nil
-    @base_dir      = nil
+    @extension_install_dir = nil
+    @full_gem_path         = nil
+    @gems_dir              = nil
+    @base_dir              = nil
   end
 
   ##
diff --git a/lib/rubygems/ext/builder.rb b/lib/rubygems/ext/builder.rb
index e9244c760c..110576e685 100644
--- a/lib/rubygems/ext/builder.rb
+++ b/lib/rubygems/ext/builder.rb
@@ -98,7 +98,7 @@ class Gem::Ext::Builder
   def initialize spec, build_args = spec.build_args
     @spec       = spec
     @build_args = build_args
-    @gem_dir    = spec.gem_dir
+    @gem_dir    = spec.full_gem_path
 
     @ran_rake   = nil
   end
diff --git a/lib/rubygems/ext/rake_builder.rb b/lib/rubygems/ext/rake_builder.rb
index 2093bcabdd..d5ebf597ae 100644
--- a/lib/rubygems/ext/rake_builder.rb
+++ b/lib/rubygems/ext/rake_builder.rb
@@ -19,7 +19,7 @@ class Gem::Ext::RakeBuilder < Gem::Ext::Builder
     rake = ENV['rake']
 
     rake ||= begin
-               "\"#{Gem.ruby}\" -rubygems #{Gem.bin_path('rake', 'rake')}"
+               "#{Gem.ruby} -rubygems #{Gem.bin_path('rake', 'rake')}"
              rescue Gem::Exception
              end
 
diff --git a/lib/rubygems/rdoc.rb b/lib/rubygems/rdoc.rb
index f16c8696f0..52249dc267 100644
--- a/lib/rubygems/rdoc.rb
+++ b/lib/rubygems/rdoc.rb
@@ -8,7 +8,7 @@ rescue Gem::LoadError
   # swallow
 else
   # This will force any deps that 'rdoc' might have
-  # (such as json) that are ambigious to be activated, which
+  # (such as json) that are ambiguous to be activated, which
   # is important because we end up using Specification.reset
   # and we don't want the warning it pops out.
   Gem.finish_resolve
diff --git a/lib/rubygems/request_set.rb b/lib/rubygems/request_set.rb
index d6337e32d8..54e4d9dee4 100644
--- a/lib/rubygems/request_set.rb
+++ b/lib/rubygems/request_set.rb
@@ -67,6 +67,7 @@ class Gem::RequestSet
     @dependency_names = {}
     @development      = false
     @git_set          = nil
+    @install_dir      = Gem.dir
     @requests         = []
     @sets             = []
     @soft_missing     = false
@@ -143,7 +144,11 @@ class Gem::RequestSet
   # dependencies file are not used.  See Gem::Installer for other +options+.
 
   def install_from_gemdeps options, &block
-    load_gemdeps options[:gemdeps], options[:without_groups]
+    gemdeps = options[:gemdeps]
+
+    @install_dir = options[:install_dir] || Gem.dir
+
+    load_gemdeps gemdeps, options[:without_groups]
 
     resolve
 
@@ -154,7 +159,12 @@ class Gem::RequestSet
         puts "  #{s}"
       end
     else
-      install options, &block
+      installed = install options, &block
+
+      lockfile = Gem::RequestSet::Lockfile.new self, gemdeps
+      lockfile.write
+
+      installed
     end
   end
 
@@ -194,6 +204,11 @@ class Gem::RequestSet
     @git_set    = Gem::Resolver::GitSet.new
     @vendor_set = Gem::Resolver::VendorSet.new
 
+    @git_set.root_dir = @install_dir
+
+    lockfile = Gem::RequestSet::Lockfile.new self, path
+    lockfile.parse
+
     gf = Gem::RequestSet::GemDependencyAPI.new self, path
     gf.without_groups = without_groups if without_groups
     gf.load
@@ -264,3 +279,4 @@ class Gem::RequestSet
 end
 
 require 'rubygems/request_set/gem_dependency_api'
+require 'rubygems/request_set/lockfile'
diff --git a/lib/rubygems/request_set/lockfile.rb b/lib/rubygems/request_set/lockfile.rb
index 0073bfdcc5..d70b09f7a2 100644
--- a/lib/rubygems/request_set/lockfile.rb
+++ b/lib/rubygems/request_set/lockfile.rb
@@ -1,3 +1,8 @@
+##
+# Parses a gem.deps.rb.lock file and constructs a LockSet containing the
+# dependencies found inside.  If the lock file is missing no LockSet is
+# constructed.
+
 class Gem::RequestSet::Lockfile
 
   ##
@@ -100,7 +105,7 @@ class Gem::RequestSet::Lockfile
     out << nil
   end
 
-  def relative_path_from(dest, base)
+  def relative_path_from dest, base # :nodoc:
     dest = File.expand_path(dest)
     base = File.expand_path(base)
 
@@ -263,6 +268,9 @@ class Gem::RequestSet::Lockfile
     get while not @tokens.empty? and peek.first == type
   end
 
+  ##
+  # The contents of the lock file.
+
   def to_s
     @set.resolve
 
@@ -293,6 +301,10 @@ class Gem::RequestSet::Lockfile
     [byte_offset - @line_pos, @line]
   end
 
+  ##
+  # Converts a lock file into an Array of tokens.  If the lock file is missing
+  # an empty Array is returned.
+
   def tokenize # :nodoc:
     @line     = 0
     @line_pos = 0
@@ -342,6 +354,8 @@ class Gem::RequestSet::Lockfile
         end
     end
 
+    @tokens
+  rescue Errno::ENOENT
     @tokens
   end
 
@@ -352,5 +366,14 @@ class Gem::RequestSet::Lockfile
     @tokens.unshift @current_token
   end
 
+  ##
+  # Writes the lock file alongside the gem dependencies file
+
+  def write
+    open "#{@gem_deps_file}.lock", 'w' do |io|
+      io.write to_s
+    end
+  end
+
 end
 
diff --git a/lib/rubygems/resolver/best_set.rb b/lib/rubygems/resolver/best_set.rb
index 533a0db58f..fa6c9f84c0 100644
--- a/lib/rubygems/resolver/best_set.rb
+++ b/lib/rubygems/resolver/best_set.rb
@@ -17,5 +17,15 @@ class Gem::Resolver::BestSet < Gem::Resolver::ComposedSet
     end
   end
 
+  def pretty_print q # :nodoc:
+    q.group 2, '[BestSet', ']' do
+      q.breakable
+      q.text 'sets:'
+
+      q.breakable
+      q.pp @sets
+    end
+  end
+
 end
 
diff --git a/lib/rubygems/resolver/git_set.rb b/lib/rubygems/resolver/git_set.rb
index c912e367d9..ed809c124f 100644
--- a/lib/rubygems/resolver/git_set.rb
+++ b/lib/rubygems/resolver/git_set.rb
@@ -10,6 +10,12 @@
 
 class Gem::Resolver::GitSet < Gem::Resolver::Set
 
+  ##
+  # The root directory for git gems in this set.  This is usually Gem.dir, the
+  # installation directory for regular gems.
+
+  attr_accessor :root_dir
+
   ##
   # Contains repositories needing submodules
 
@@ -30,6 +36,7 @@ class Gem::Resolver::GitSet < Gem::Resolver::Set
     @git             = ENV['git'] || 'git'
     @need_submodules = {}
     @repositories    = {}
+    @root_dir        = Gem.dir
     @specs           = {}
   end
 
@@ -57,6 +64,7 @@ class Gem::Resolver::GitSet < Gem::Resolver::Set
 
     @repositories.each do |name, (repository, reference)|
       source = Gem::Source::Git.new name, repository, reference
+      source.root_dir = @root_dir
 
       source.specs.each do |spec|
         git_spec = Gem::Resolver::GitSpecification.new self, spec, source
@@ -66,5 +74,20 @@ class Gem::Resolver::GitSet < Gem::Resolver::Set
     end
   end
 
+  def pretty_print q # :nodoc:
+    q.group 2, '[GitSet', ']' do
+      next if @repositories.empty?
+      q.breakable
+
+      repos = @repositories.map do |name, (repository, reference)|
+        "#{name}: #{repository}@#{reference}"
+      end
+
+      q.seplist repos do |repo|
+        q.text repo
+      end
+    end
+  end
+
 end
 
diff --git a/lib/rubygems/resolver/index_set.rb b/lib/rubygems/resolver/index_set.rb
index 0ba3c78a44..a6ef56bb7f 100644
--- a/lib/rubygems/resolver/index_set.rb
+++ b/lib/rubygems/resolver/index_set.rb
@@ -46,5 +46,29 @@ class Gem::Resolver::IndexSet < Gem::Resolver::Set
     res
   end
 
+  def pretty_print q # :nodoc:
+    q.group 2, '[IndexSet', ']' do
+      q.breakable
+      q.text 'sources:'
+      q.breakable
+      q.pp @f.sources
+
+      q.breakable
+      q.text 'specs:'
+
+      q.breakable
+
+      names = @all.values.map do |tuples|
+        tuples.map do |_, tuple|
+          tuple.full_name
+        end
+      end.flatten
+
+      q.seplist names do |name|
+        q.text name
+      end
+    end
+  end
+
 end
 
diff --git a/lib/rubygems/resolver/lock_set.rb b/lib/rubygems/resolver/lock_set.rb
index 6885e70945..ef5395597d 100644
--- a/lib/rubygems/resolver/lock_set.rb
+++ b/lib/rubygems/resolver/lock_set.rb
@@ -9,7 +9,7 @@ class Gem::Resolver::LockSet < Gem::Resolver::Set
   # Creates a new LockSet from the given +source+
 
   def initialize source
-    @source = source
+    @source = Gem::Source::Lock.new source
     @specs  = []
   end
 
@@ -56,5 +56,21 @@ class Gem::Resolver::LockSet < Gem::Resolver::Set
     found.source.fetch_spec tuple
   end
 
+  def pretty_print q # :nodoc:
+    q.group 2, '[LockSet', ']' do
+      q.breakable
+      q.text 'source:'
+
+      q.breakable
+      q.pp @source
+
+      q.breakable
+      q.text 'specs:'
+
+      q.breakable
+      q.pp @specs.map { |spec| spec.full_name }
+    end
+  end
+
 end
 
diff --git a/lib/rubygems/resolver/vendor_set.rb b/lib/rubygems/resolver/vendor_set.rb
index c8826005a7..339492f690 100644
--- a/lib/rubygems/resolver/vendor_set.rb
+++ b/lib/rubygems/resolver/vendor_set.rb
@@ -64,5 +64,20 @@ class Gem::Resolver::VendorSet < Gem::Resolver::Set
     @specs.fetch key
   end
 
+  def pretty_print q # :nodoc:
+    q.group 2, '[VendorSet', ']' do
+      next if @directories.empty?
+      q.breakable
+
+      dirs = @directories.map do |spec, directory|
+        "#{spec.full_name}: #{directory}"
+      end
+
+      q.seplist dirs do |dir|
+        q.text dir
+      end
+    end
+  end
+
 end
 
diff --git a/lib/rubygems/source.rb b/lib/rubygems/source.rb
index b6e2d97523..9553db18c6 100644
--- a/lib/rubygems/source.rb
+++ b/lib/rubygems/source.rb
@@ -49,6 +49,7 @@ class Gem::Source
     case other
     when Gem::Source::Installed,
          Gem::Source::Local,
+         Gem::Source::Lock,
          Gem::Source::SpecificFile,
          Gem::Source::Git,
          Gem::Source::Vendor then
@@ -213,5 +214,6 @@ require 'rubygems/source/git'
 require 'rubygems/source/installed'
 require 'rubygems/source/specific_file'
 require 'rubygems/source/local'
+require 'rubygems/source/lock'
 require 'rubygems/source/vendor'
 
diff --git a/lib/rubygems/source/git.rb b/lib/rubygems/source/git.rb
index 2794735c96..e8b03165c1 100644
--- a/lib/rubygems/source/git.rb
+++ b/lib/rubygems/source/git.rb
@@ -30,6 +30,11 @@ class Gem::Source::Git < Gem::Source
 
   attr_reader :repository
 
+  ##
+  # The directory for cache and git gem installation
+
+  attr_accessor :root_dir
+
   ##
   # Does this repository need submodules checked out too?
 
@@ -50,14 +55,16 @@ class Gem::Source::Git < Gem::Source
     @reference       = reference
     @need_submodules = submodules
 
-    @git = ENV['git'] || 'git'
+    @root_dir = Gem.dir
+    @git      = ENV['git'] || 'git'
   end
 
   def <=> other
     case other
     when Gem::Source::Git then
       0
-    when Gem::Source::Installed then
+    when Gem::Source::Installed,
+         Gem::Source::Lock then
       -1
     when Gem::Source then
       1
@@ -113,6 +120,13 @@ class Gem::Source::Git < Gem::Source
     end
   end
 
+  ##
+  # Directory where git gems get unpacked and so-forth.
+
+  def base_dir # :nodoc:
+    File.join @root_dir, 'bundler'
+  end
+
   ##
   # A short reference for use in git gem directories
 
@@ -130,14 +144,14 @@ class Gem::Source::Git < Gem::Source
   # The directory where the git gem will be installed.
 
   def install_dir # :nodoc:
-    File.join Gem.dir, 'bundler', 'gems', "#{@name}-#{dir_shortref}"
+    File.join base_dir, 'gems', "#{@name}-#{dir_shortref}"
   end
 
   ##
   # The directory where the git gem's repository will be cached.
 
   def repo_cache_dir # :nodoc:
-    File.join Gem.dir, 'cache', 'bundler', 'git', "#{@name}-#{uri_hash}"
+    File.join @root_dir, 'cache', 'bundler', 'git', "#{@name}-#{uri_hash}"
   end
 
   ##
@@ -162,7 +176,17 @@ class Gem::Source::Git < Gem::Source
 
         Dir.chdir directory do
           spec = Gem::Specification.load file
-          spec.full_gem_path = File.expand_path '.' if spec
+          if spec then
+            loaded_from = File.expand_path file
+            spec.loaded_from = loaded_from
+            spec.base_dir = base_dir
+
+            spec.extension_install_dir =
+              File.join base_dir, 'extensions', Gem::Platform.local.to_s,
+                Gem.extension_api_version, "#{name}-#{dir_shortref}"
+
+            spec.full_gem_path = File.dirname loaded_from if spec
+          end
           spec
         end
       end.compact
diff --git a/lib/rubygems/source/installed.rb b/lib/rubygems/source/installed.rb
index 2661dd6844..6d343c2439 100644
--- a/lib/rubygems/source/installed.rb
+++ b/lib/rubygems/source/installed.rb
@@ -12,7 +12,8 @@ class Gem::Source::Installed < Gem::Source
 
   def <=> other
     case other
-    when Gem::Source::Vendor then
+    when Gem::Source::Lock,
+         Gem::Source::Vendor then
       -1
     when Gem::Source::Installed then
       0
diff --git a/lib/rubygems/source/local.rb b/lib/rubygems/source/local.rb
index 3aae20c8ed..8057921163 100644
--- a/lib/rubygems/source/local.rb
+++ b/lib/rubygems/source/local.rb
@@ -15,7 +15,8 @@ class Gem::Source::Local < Gem::Source
 
   def <=> other
     case other
-    when Gem::Source::Installed then
+    when Gem::Source::Installed,
+         Gem::Source::Lock then
       -1
     when Gem::Source::Local then
       0
diff --git a/lib/rubygems/source/lock.rb b/lib/rubygems/source/lock.rb
new file mode 100644
index 0000000000..d8a46d8d10
--- /dev/null
+++ b/lib/rubygems/source/lock.rb
@@ -0,0 +1,44 @@
+##
+# A Lock source wraps an installed gem's source and sorts before other sources
+# during dependency resolution.  This allows RubyGems to prefer gems from
+# dependency lock files.
+
+class Gem::Source::Lock < Gem::Source
+
+  ##
+  # The wrapped Gem::Source
+
+  attr_reader :wrapped
+
+  ##
+  # Creates a new Lock source that wraps +source+ and moves it earlier in the
+  # sort list.
+
+  def initialize source
+    @wrapped = source
+  end
+
+  def <=> other # :nodoc:
+    case other
+    when Gem::Source::Lock then
+      @wrapped <=> other.wrapped
+    when Gem::Source then
+      1
+    else
+      nil
+    end
+  end
+
+  def == other # :nodoc:
+    0 == (self <=> other)
+  end
+
+  ##
+  # Delegates to the wrapped source's fetch_spec method.
+
+  def fetch_spec name_tuple
+    @wrapped.fetch_spec name_tuple
+  end
+
+end
+
diff --git a/lib/rubygems/source/vendor.rb b/lib/rubygems/source/vendor.rb
index 244c4201d8..2d936231c1 100644
--- a/lib/rubygems/source/vendor.rb
+++ b/lib/rubygems/source/vendor.rb
@@ -12,6 +12,8 @@ class Gem::Source::Vendor < Gem::Source::Installed
 
   def <=> other
     case other
+    when Gem::Source::Lock then
+      -1
     when Gem::Source::Vendor then
       0
     when Gem::Source then
diff --git a/lib/rubygems/specification.rb b/lib/rubygems/specification.rb
index 2bcc2c0ef2..abfd139581 100644
--- a/lib/rubygems/specification.rb
+++ b/lib/rubygems/specification.rb
@@ -1031,7 +1031,7 @@ class Gem::Specification < Gem::BasicSpecification
       spec = eval code, binding, file
 
       if Gem::Specification === spec
-        spec.loaded_from = file.to_s
+        spec.loaded_from = File.expand_path file.to_s
         LOAD_CACHE[file] = spec
         return spec
       end
diff --git a/lib/rubygems/test_utilities.rb b/lib/rubygems/test_utilities.rb
index f7943adcee..ee5ef01203 100644
--- a/lib/rubygems/test_utilities.rb
+++ b/lib/rubygems/test_utilities.rb
@@ -101,6 +101,24 @@ class Gem::FakeFetcher
     response
   end
 
+  def pretty_print q # :nodoc:
+    q.group 2, '[FakeFetcher', ']' do
+      q.breakable
+      q.text 'URIs:'
+
+      q.breakable
+      q.pp @data.keys
+
+      unless @api_endpoints.empty? then
+        q.breakable
+        q.text 'API endpoints:'
+
+        q.breakable
+        q.pp @api_endpoints.keys
+      end
+    end
+  end
+
   def fetch_size(path)
     path = path.to_s
     @paths << path
diff --git a/lib/rubygems/validator.rb b/lib/rubygems/validator.rb
index 1436a93ae6..6992af16ba 100644
--- a/lib/rubygems/validator.rb
+++ b/lib/rubygems/validator.rb
@@ -86,6 +86,7 @@ class Gem::Validator
 
     Gem::Specification.each do |spec|
       next unless gems.include? spec.name unless gems.empty?
+      next if spec.default_gem?
 
       gem_name      = spec.file_name
       gem_path      = spec.cache_file
diff --git a/test/rubygems/test_gem_request_set.rb b/test/rubygems/test_gem_request_set.rb
index 6719be372c..324d0cd7a8 100644
--- a/test/rubygems/test_gem_request_set.rb
+++ b/test/rubygems/test_gem_request_set.rb
@@ -45,16 +45,88 @@ class TestGemRequestSet < Gem::TestCase
     rs = Gem::RequestSet.new
     installed = []
 
+    open 'gem.deps.rb', 'w' do |io|
+      io.puts 'gem "a"'
+      io.flush
+
+      result = rs.install_from_gemdeps :gemdeps => io.path do |req, installer|
+        installed << req.full_name
+      end
+
+      assert_kind_of Array, result # what is supposed to be in here?
+    end
+
+    assert_includes installed, 'a-2'
+    assert_path_exists File.join @gemhome, 'gems', 'a-2'
+    assert_path_exists 'gem.deps.rb.lock'
+  end
+
+  def test_install_from_gemdeps_install_dir
+    spec_fetcher do |fetcher|
+      fetcher.gem 'a', 2
+    end
+
+    util_clear_gems
+    refute_path_exists File.join Gem.dir, 'gems', 'a-2'
+
+    rs = Gem::RequestSet.new
+    installed = []
+
     Tempfile.open 'gem.deps.rb' do |io|
       io.puts 'gem "a"'
       io.flush
 
-      rs.install_from_gemdeps :gemdeps => io.path do |req, installer|
+      options = {
+        :gemdeps     => io.path,
+        :install_dir => "#{@gemhome}2",
+      }
+
+      rs.install_from_gemdeps options do |req, installer|
         installed << req.full_name
       end
     end
 
     assert_includes installed, 'a-2'
+    refute_path_exists File.join Gem.dir, 'gems', 'a-2'
+  end
+
+  def test_install_from_gemdeps_lockfile
+    spec_fetcher do |fetcher|
+      fetcher.gem 'a', 1
+      fetcher.gem 'a', 2
+      fetcher.gem 'b', 1, 'a' => '>= 0'
+    end
+
+    rs = Gem::RequestSet.new
+    installed = []
+
+    open 'gem.deps.rb.lock', 'w' do |io|
+      io.puts <<-LOCKFILE
+GEM
+  remote: #{@gem_repo}
+  specs:
+    a (1)
+    b (1)
+      a
+
+PLATFORMS
+  #{Gem::Platform::RUBY}
+
+DEPENDENCIES
+  b
+      LOCKFILE
+    end
+
+    open 'gem.deps.rb', 'w' do |io|
+      io.puts 'gem "b"'
+    end
+
+    rs.install_from_gemdeps :gemdeps => 'gem.deps.rb' do |req, installer|
+      installed << req.full_name
+    end
+
+    assert_includes installed, 'b-1'
+    assert_includes installed, 'a-1'
   end
 
   def test_load_gemdeps
diff --git a/test/rubygems/test_gem_request_set_lockfile.rb b/test/rubygems/test_gem_request_set_lockfile.rb
index fcd4ecfaf7..18c44144fa 100644
--- a/test/rubygems/test_gem_request_set_lockfile.rb
+++ b/test/rubygems/test_gem_request_set_lockfile.rb
@@ -104,6 +104,16 @@ DEPENDENCIES
     assert_equal %w[a-2], lockfile_set.specs.map { |tuple| tuple.full_name }
   end
 
+  def test_parse_missing
+    @lockfile.parse
+
+    lockfile_set = @set.sets.find do |set|
+      Gem::Resolver::LockSet === set
+    end
+
+    refute lockfile_set
+  end
+
   def test_peek
     @lockfile.instance_variable_set :@tokens, [:token]
 
@@ -211,6 +221,12 @@ DEPENDENCIES
                  e.message
   end
 
+  def test_tokenize_missing
+    tokens = @lockfile.tokenize
+
+    assert_empty tokens
+  end
+
   def test_to_s_gem
     spec_fetcher do |fetcher|
       fetcher.spec 'a', 2
@@ -400,5 +416,15 @@ DEPENDENCIES
     assert_equal :token, @lockfile.get
   end
 
+  def test_write
+    @lockfile.write
+
+    gem_deps_lock_file = "#{@gem_deps_file}.lock"
+
+    assert_path_exists gem_deps_lock_file
+
+    refute_empty File.read gem_deps_lock_file
+  end
+
 end
 
diff --git a/test/rubygems/test_gem_resolver_git_set.rb b/test/rubygems/test_gem_resolver_git_set.rb
index 1ca12a7251..b1a8d838bb 100644
--- a/test/rubygems/test_gem_resolver_git_set.rb
+++ b/test/rubygems/test_gem_resolver_git_set.rb
@@ -52,6 +52,14 @@ class TestGemResolverGitSet < Gem::TestCase
     assert_equal [@set.specs['a']], found
   end
 
+  def test_root_dir
+    assert_equal Gem.dir, @set.root_dir
+
+    @set.root_dir = "#{@gemhome}2"
+
+    assert_equal "#{@gemhome}2", @set.root_dir
+  end
+
   def test_prefetch
     name, _, repository, = git_gem
 
@@ -98,5 +106,25 @@ class TestGemResolverGitSet < Gem::TestCase
     refute_empty @set.specs, 'the git source does not filter'
   end
 
+  def test_prefetch_root_dir
+    name, _, repository, = git_gem
+
+    @set.add_git_gem name, repository, 'master', false
+
+    dependency = dep name
+    req = Gem::Resolver::ActivationRequest.new dependency, nil
+    @reqs.add req
+
+    @set.root_dir = "#{@gemhome}2"
+
+    @set.prefetch @reqs
+
+    refute_empty @set.specs
+
+    spec = @set.specs.values.first
+
+    assert_equal "#{@gemhome}2", spec.source.root_dir
+  end
+
 end
 
diff --git a/test/rubygems/test_gem_resolver_git_specification.rb b/test/rubygems/test_gem_resolver_git_specification.rb
index d724106f08..b0163bc782 100644
--- a/test/rubygems/test_gem_resolver_git_specification.rb
+++ b/test/rubygems/test_gem_resolver_git_specification.rb
@@ -46,5 +46,39 @@ class TestGemResolverGitSpecification < Gem::TestCase
     assert called
   end
 
+  # functional test for Gem::Ext::Builder
+
+  def test_install_extension
+    name, _, repository, = git_gem 'a', 1 do |s|
+      s.extensions << 'ext/extconf.rb'
+    end
+
+    Dir.chdir 'git/a' do
+      FileUtils.mkdir_p 'ext/lib'
+
+      open 'ext/extconf.rb', 'w' do |io|
+        io.puts 'require "mkmf"'
+        io.puts 'create_makefile "a"'
+      end
+
+      FileUtils.touch 'ext/lib/b.rb'
+
+      system @git, 'add', 'ext/extconf.rb'
+      system @git, 'add', 'ext/lib/b.rb'
+
+      system @git, 'commit', '--quiet', '-m', 'Add extension files'
+    end
+
+    source = Gem::Source::Git.new name, repository, 'master', true
+
+    spec = source.specs.first
+
+    git_spec = Gem::Resolver::GitSpecification.new @set, spec, source
+
+    git_spec.install({})
+
+    assert_path_exists File.join git_spec.spec.extension_install_dir, 'b.rb'
+  end
+
 end
 
diff --git a/test/rubygems/test_gem_resolver_lock_set.rb b/test/rubygems/test_gem_resolver_lock_set.rb
index 71b28efd4f..6d904fbaee 100644
--- a/test/rubygems/test_gem_resolver_lock_set.rb
+++ b/test/rubygems/test_gem_resolver_lock_set.rb
@@ -5,7 +5,8 @@ class TestGemResolverLockSet < Gem::TestCase
   def setup
     super
 
-    @source = Gem::Source.new @gem_repo
+    @source      = Gem::Source.new @gem_repo
+    @lock_source = Gem::Source::Lock.new @source
 
     @set = Gem::Resolver::LockSet.new @source
   end
@@ -21,7 +22,7 @@ class TestGemResolverLockSet < Gem::TestCase
     assert_equal 'a',                 spec.name
     assert_equal v(2),                spec.version
     assert_equal Gem::Platform::RUBY, spec.platform
-    assert_equal @source,             spec.source
+    assert_equal @lock_source,        spec.source
   end
 
   def test_find_all
@@ -41,7 +42,7 @@ class TestGemResolverLockSet < Gem::TestCase
     version = v(2)
     @set.add 'a', version, Gem::Platform::RUBY
 
-    loaded = @set.load_spec 'a', version, Gem::Platform::RUBY, @source
+    loaded = @set.load_spec 'a', version, Gem::Platform::RUBY, nil
 
     assert_kind_of Gem::Specification, loaded
 
diff --git a/test/rubygems/test_gem_source_git.rb b/test/rubygems/test_gem_source_git.rb
index 838ae562a7..fc89de474a 100644
--- a/test/rubygems/test_gem_source_git.rb
+++ b/test/rubygems/test_gem_source_git.rb
@@ -13,6 +13,14 @@ class TestGemSourceGit < Gem::TestCase
     @source = Gem::Source::Git.new @name, @repository, 'master', false
   end
 
+  def test_base_dir
+    assert_equal File.join(Gem.dir, 'bundler'), @source.base_dir
+
+    @source.root_dir = "#{@gemhome}2"
+
+    assert_equal File.join("#{@gemhome}2", 'bundler'), @source.base_dir
+  end
+
   def test_checkout
     @source.checkout
 
@@ -96,6 +104,13 @@ class TestGemSourceGit < Gem::TestCase
       File.join Gem.dir, 'cache', 'bundler', 'git', "a-#{@hash}"
 
     assert_equal expected, @source.repo_cache_dir
+
+    @source.root_dir = "#{@gemhome}2"
+
+    expected =
+      File.join "#{@gemhome}2", 'cache', 'bundler', 'git', "a-#{@hash}"
+
+    assert_equal expected, @source.repo_cache_dir
   end
 
   def test_rev_parse
@@ -118,6 +133,14 @@ class TestGemSourceGit < Gem::TestCase
     refute_equal master_head, source.rev_parse
   end
 
+  def test_root_dir
+    assert_equal Gem.dir, @source.root_dir
+
+    @source.root_dir = "#{@gemhome}2"
+
+    assert_equal "#{@gemhome}2", @source.root_dir
+  end
+
   def test_spaceship
     git       = Gem::Source::Git.new 'a', 'git/a', 'master', false
     remote    = Gem::Source.new @gem_repo
@@ -165,11 +188,27 @@ class TestGemSourceGit < Gem::TestCase
 
     a_spec = specs.shift
 
+    base_dir = File.dirname File.dirname source.install_dir
+
     assert_equal source.install_dir, a_spec.full_gem_path
+    assert_equal File.join(source.install_dir, 'a.gemspec'), a_spec.loaded_from
+    assert_equal base_dir, a_spec.base_dir
+
+    extension_install_dir =
+      File.join Gem.dir, 'bundler', 'extensions',
+        Gem::Platform.local.to_s, Gem.extension_api_version,
+        "a-#{source.dir_shortref}"
+
+    assert_equal extension_install_dir, a_spec.extension_install_dir
 
     b_spec = specs.shift
 
     assert_equal File.join(source.install_dir, 'b'), b_spec.full_gem_path
+    assert_equal File.join(source.install_dir, 'b', 'b.gemspec'),
+                 b_spec.loaded_from
+    assert_equal base_dir, b_spec.base_dir
+
+    assert_equal extension_install_dir, b_spec.extension_install_dir
   end
 
   def test_uri_hash
diff --git a/test/rubygems/test_gem_source_lock.rb b/test/rubygems/test_gem_source_lock.rb
new file mode 100644
index 0000000000..d114dccbb7
--- /dev/null
+++ b/test/rubygems/test_gem_source_lock.rb
@@ -0,0 +1,107 @@
+require 'rubygems/test_case'
+
+class TestGemSourceLock < Gem::TestCase
+
+  def test_fetch_spec
+    spec_fetcher do |fetcher|
+      fetcher.spec 'a', 1
+    end
+
+    name_tuple = Gem::NameTuple.new 'a', v(1), 'ruby'
+
+    remote = Gem::Source.new @gem_repo
+    lock   = Gem::Source::Lock.new remote
+
+    spec = lock.fetch_spec name_tuple
+
+    assert_equal 'a-1', spec.full_name
+  end
+
+  def test_equals2
+    git    = Gem::Source::Git.new 'a', 'git/a', 'master', false
+    g_lock = Gem::Source::Lock.new git
+
+    installed = Gem::Source::Installed.new
+    i_lock    = Gem::Source::Lock.new installed
+
+    assert_equal g_lock, g_lock
+    refute_equal g_lock, i_lock
+    refute_equal g_lock, Object.new
+  end
+
+  def test_spaceship
+    git    = Gem::Source::Git.new 'a', 'git/a', 'master', false
+    g_lock = Gem::Source::Lock.new git
+
+    installed = Gem::Source::Installed.new
+    i_lock    = Gem::Source::Lock.new installed
+
+    vendor = Gem::Source::Vendor.new 'vendor/a'
+    v_lock = Gem::Source::Lock.new vendor
+
+    assert_equal( 0, g_lock.<=>(g_lock), 'g_lock <=> g_lock')
+    assert_equal( 0, i_lock.<=>(i_lock), 'i_lock <=> i_lock')
+    assert_equal( 0, v_lock.<=>(v_lock), 'v_lock <=> v_lock')
+
+    assert_equal(-1, g_lock.<=>(i_lock), 'g_lock <=> i_lock')
+    assert_equal( 1, i_lock.<=>(g_lock), 'i_lock <=> g_lock')
+
+    assert_equal(-1, g_lock.<=>(v_lock), 'g_lock <=> v_lock')
+    assert_equal( 1, v_lock.<=>(g_lock), 'v_lock <=> g_lock')
+
+    assert_equal(-1, i_lock.<=>(v_lock), 'i_lock <=> v_lock')
+    assert_equal( 1, v_lock.<=>(i_lock), 'i_lock <=> v_lock')
+  end
+
+  def test_spaceship_git
+    git  = Gem::Source::Git.new 'a', 'git/a', 'master', false
+    lock = Gem::Source::Lock.new git
+
+    assert_equal( 1, lock.<=>(git),  'lock <=> git')
+    assert_equal(-1, git .<=>(lock), 'git  <=> lock')
+  end
+
+  def test_spaceship_installed
+    installed = Gem::Source::Installed.new
+    lock      = Gem::Source::Lock.new installed
+
+    assert_equal( 1, lock.     <=>(installed),  'lock      <=> installed')
+    assert_equal(-1, installed.<=>(lock),       'installed <=> lock')
+  end
+
+  def test_spaceship_local
+    local = Gem::Source::Local.new
+    lock  = Gem::Source::Lock.new local # nonsense
+
+    assert_equal( 1, lock. <=>(local), 'lock  <=> local')
+    assert_equal(-1, local.<=>(lock),  'local <=> lock')
+  end
+
+  def test_spaceship_remote
+    remote = Gem::Source.new @gem_repo
+    lock   = Gem::Source::Lock.new remote
+
+    assert_equal( 1, lock.  <=>(remote), 'lock   <=> remote')
+    assert_equal(-1, remote.<=>(lock),   'remote <=> lock')
+  end
+
+  def test_spaceship_specific_file
+    _, gem = util_gem 'a', 1
+
+    specific = Gem::Source::SpecificFile.new gem
+    lock     = Gem::Source::Lock.new specific # nonsense
+
+    assert_equal( 1, lock    .<=>(specific),  'lock     <=> specific')
+    assert_equal(-1, specific.<=>(lock),      'specific <=> lock')
+  end
+
+  def test_spaceship_vendor
+    vendor = Gem::Source::Vendor.new 'vendor/a'
+    lock   = Gem::Source::Lock.new vendor
+
+    assert_equal( 1, lock.  <=>(vendor), 'lock   <=>    vendor')
+    assert_equal(-1, vendor.<=>(lock),   'vendor <=> lock')
+  end
+
+end
+
diff --git a/test/rubygems/test_gem_specification.rb b/test/rubygems/test_gem_specification.rb
index b63721270e..76cb12ca58 100644
--- a/test/rubygems/test_gem_specification.rb
+++ b/test/rubygems/test_gem_specification.rb
@@ -716,6 +716,20 @@ dependencies: []
     assert_equal @a2, spec
   end
 
+  def test_self_load_relative
+    open 'a-2.gemspec', 'w' do |io|
+      io.write @a2.to_ruby_for_cache
+    end
+
+    spec = Gem::Specification.load 'a-2.gemspec'
+
+    @a2.files.clear
+
+    assert_equal @a2, spec
+
+    assert_equal File.join(@tempdir, 'a-2.gemspec'), spec.loaded_from
+  end
+
   def test_self_load_tainted
     full_path = @a2.spec_file
     write_file full_path do |io|
diff --git a/test/rubygems/test_gem_validator.rb b/test/rubygems/test_gem_validator.rb
index ab2a9b82a7..4af8b524e1 100644
--- a/test/rubygems/test_gem_validator.rb
+++ b/test/rubygems/test_gem_validator.rb
@@ -32,5 +32,14 @@ class TestGemValidator < Gem::TestCase
 
     assert_equal expected, alien
   end
+
+  def test_alien_default
+    new_default_spec 'c', 1, nil, 'lib/c.rb'
+
+    alien = @validator.alien 'c'
+
+    assert_empty alien
+  end
+
 end