* lib/rubygems/package/old.rb: Disallow installation of old-format

gems when a security policy is active.
	* test/rubygems/test_gem_package_old.rb:  Test for above.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39142 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/rubygems/test_gem_package_old.rb

@@ -18,6 +18,14 @@ class TestGemPackageOld < Gem::TestCase
     assert_equal %w[lib/foo.rb lib/test.rb lib/test/wow.rb], @package.contents
   end
 
+  def test_contents_security_policy
+    @package.security_policy = Gem::Security::AlmostNoSecurity
+
+    assert_raises Gem::Security::Exception do
+      @package.contents
+    end
+  end
+
   def test_extract_files
     @package.extract_files @destination
 
@@ -29,9 +37,43 @@ class TestGemPackageOld < Gem::TestCase
     assert_equal mask, File.stat(extracted).mode unless win_platform?
   end
 
+  def test_extract_files_security_policy
+    @package.security_policy = Gem::Security::AlmostNoSecurity
+
+    assert_raises Gem::Security::Exception do
+      @package.extract_files @destination
+    end
+  end
+
   def test_spec
     assert_equal 'testing', @package.spec.name
   end
 
+  def test_spec_security_policy
+    @package.security_policy = Gem::Security::AlmostNoSecurity
+
+    assert_raises Gem::Security::Exception do
+      @package.spec
+    end
+  end
+
+  def test_verify
+    assert @package.verify
+
+    @package.security_policy = Gem::Security::NoSecurity
+
+    assert @package.verify
+
+    @package.security_policy = Gem::Security::AlmostNoSecurity
+
+    e = assert_raises Gem::Security::Exception do
+      @package.verify
+    end
+
+    assert_equal 'old format gems do not contain signatures ' +
+                 'and cannot be verified',
+                 e.message
+  end
+
 end