1 files changed, 17 insertions, 1 deletions
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