Fixes unescaped version passthrough of generator 'gem' command. [#3901 status:resolved]

Signed-off-by: NJosé Valim <jose.valim@gmail.com>

railties/lib/rails/generators/actions.rb

@@ -69,7 +69,7 @@ def gem(*args)
         # otherwise use name (version).
         parts, message = [ name.inspect ], name
         if version ||= options.delete(:version)
-          parts   << version
+          parts   << version.inspect
           message << " (#{version})"
         end
         message = options[:git] if options[:git]

railties/test/generators/actions_test.rb

@@ -103,6 +103,24 @@ def test_gem_with_env_should_include_all_dependencies_in_gemfile
     assert_file 'Gemfile', /gem "rspec", :only => \["development", "test"\]/
   end
 
+  def test_gem_with_version_should_include_version_in_gemfile
+    run_generator
+
+    action :gem, 'rspec', '>=2.0.0.a5'
+
+    assert_file 'Gemfile', /gem "rspec", ">=2.0.0.a5"/
+  end
+
+  def test_gem_should_insert_on_separate_lines
+    run_generator
+
+    action :gem, 'rspec'
+    action :gem, 'rspec-rails'
+
+    assert_file 'Gemfile', /gem "rspec"$/
+    assert_file 'Gemfile', /gem "rspec-rails"$/
+  end
+
   def test_environment_should_include_data_in_environment_initializer_block
     run_generator
     load_paths = 'config.load_paths += %w["#{Rails.root}/app/extras"]'