1 files changed, 24 insertions, 0 deletions
diff --git a/test/spec_rack_config.rb b/test/spec_rack_config.rb
new file mode 100644
index 00000000..a508ea4b
--- /dev/null
+++ b/test/spec_rack_config.rb
@@ -0,0 +1,24 @@
+require 'test/spec'
+require 'rack/mock'
+require 'rack/builder'
+require 'rack/content_length'
+require 'rack/config'
+
+context "Rack::Config" do
+
+  specify "should accept a block that modifies the environment" do
+    app = Rack::Builder.new do
+      use Rack::Lint
+      use Rack::ContentLength
+      use Rack::Config do |env|
+        env['greeting'] = 'hello'
+      end
+      run lambda { |env|
+        [200, {'Content-Type' => 'text/plain'}, [env['greeting'] || '']]
+      }
+    end
+    response = Rack::MockRequest.new(app).get('/')
+    response.body.should.equal('hello')
+  end
+
+end