1 files changed, 18 insertions, 1 deletions
diff --git a/test/rubygems/test_gem_builder.rb b/test/rubygems/test_gem_builder.rb
index f95472f626..5895b5f458 100644
--- a/test/rubygems/test_gem_builder.rb
+++ b/test/rubygems/test_gem_builder.rb
@@ -6,6 +6,7 @@
 
 require 'rubygems/test_case'
 require 'rubygems/builder'
+require 'rubygems/package'
 
 class TestGemBuilder < Gem::TestCase
 
@@ -29,5 +30,21 @@ class TestGemBuilder < Gem::TestCase
     end
   end
 
-end
+  def test_build_specification_result
+    util_make_gems
+
+    spec = build_gem_and_yield_spec @a1
+
+    assert_operator @a1, :eql?, spec
+  end
 
+  def build_gem_and_yield_spec(spec)
+    builder = Gem::Builder.new spec
+
+    spec = Dir.chdir @tempdir do
+      FileUtils.mkdir 'lib'
+      File.open('lib/code.rb', 'w') { |f| f << "something" }
+      Gem::Package.open(File.open(builder.build, 'rb')) { |x| x.metadata }
+    end
+  end
+end