Fix test for prepend giving a false positive. [#5716 state:resolved]

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

railties/lib/rails/generators/rails/plugin_new/plugin_new_generator.rb

@@ -62,7 +62,7 @@ def test
     end
 
     def generate_test_dummy(force = false)
-      opts = (options || {}).slice(:skip_active_record, :skip_javascript, :database, :javascript)
+      opts = (options || {}).slice(:skip_active_record, :skip_javascript, :database, :javascript, :quiet, :pretend, :force, :skip)
       opts[:force] = force
 
       invoke Rails::Generators::AppGenerator,

railties/test/generators/shared_generator_tests.rb

@@ -26,8 +26,7 @@ def test_skeleton_is_created
 
   def test_plugin_new_generate_pretend
     run_generator ["testapp", "--pretend"]
-
-    default_files.each{ |path| assert_no_file path }
+    default_files.each{ |path| assert_no_file File.join("testapp",path) }
   end
 
   def test_invalid_database_option_raises_an_error