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-rw-r--r--railties/test/railties/engine_test.rb38
1 files changed, 38 insertions, 0 deletions
diff --git a/railties/test/railties/engine_test.rb b/railties/test/railties/engine_test.rb
index 39189edaa3..980265d969 100644
--- a/railties/test/railties/engine_test.rb
+++ b/railties/test/railties/engine_test.rb
@@ -1,8 +1,23 @@
require "isolation/abstract_unit"
require "railties/shared_tests"
+require 'stringio'
module RailtiesTest
class EngineTest < Test::Unit::TestCase
+ # TODO: it's copied from generators/test_case, maybe make a module with such helpers?
+ def capture(stream)
+ begin
+ stream = stream.to_s
+ eval "$#{stream} = StringIO.new"
+ yield
+ result = eval("$#{stream}").string
+ ensure
+ eval("$#{stream} = #{stream.upcase}")
+ end
+
+ result
+ end
+
include ActiveSupport::Testing::Isolation
include SharedTests
@@ -126,5 +141,28 @@ module RailtiesTest
assert Bukkits::Engine.config.yaffle_loaded
end
+
+ test "engine does not load plugins that already exists in application" do
+ @plugin.write "lib/bukkits.rb", <<-RUBY
+ class Bukkits
+ class Engine < ::Rails::Engine
+ end
+ end
+ RUBY
+
+ @plugin.write "vendor/plugins/yaffle/init.rb", <<-RUBY
+ config.engine_yaffle_loaded = true
+ RUBY
+
+ app_file "vendor/plugins/yaffle/init.rb", <<-RUBY
+ config.app_yaffle_loaded = true
+ RUBY
+
+ warnings = capture(:stderr) { boot_rails }
+
+ assert !warnings.empty?
+ assert !Bukkits::Engine.config.respond_to?(:engine_yaffle_loaded)
+ assert Rails.application.config.app_yaffle_loaded
+ end
end
end