Vendor Rack 1.0.1

Incorporate patch from Revision 496.

vendor/plugins/rack/test/spec_rack_chunked.rb

@@ -0,0 +1,62 @@
+require 'rack/mock'
+require 'rack/chunked'
+require 'rack/utils'
+
+context "Rack::Chunked" do
+
+  before do
+    @env = Rack::MockRequest.
+      env_for('/', 'HTTP_VERSION' => '1.1', 'REQUEST_METHOD' => 'GET')
+  end
+
+  specify 'chunks responses with no Content-Length' do
+    app = lambda { |env| [200, {}, ['Hello', ' ', 'World!']] }
+    response = Rack::MockResponse.new(*Rack::Chunked.new(app).call(@env))
+    response.headers.should.not.include 'Content-Length'
+    response.headers['Transfer-Encoding'].should.equal 'chunked'
+    response.body.should.equal "5\r\nHello\r\n1\r\n \r\n6\r\nWorld!\r\n0\r\n\r\n"
+  end
+
+  specify 'chunks empty bodies properly' do
+    app = lambda { |env| [200, {}, []] }
+    response = Rack::MockResponse.new(*Rack::Chunked.new(app).call(@env))
+    response.headers.should.not.include 'Content-Length'
+    response.headers['Transfer-Encoding'].should.equal 'chunked'
+    response.body.should.equal "0\r\n\r\n"
+  end
+
+  specify 'does not modify response when Content-Length header present' do
+    app = lambda { |env| [200, {'Content-Length'=>'12'}, ['Hello', ' ', 'World!']] }
+    status, headers, body = Rack::Chunked.new(app).call(@env)
+    status.should.equal 200
+    headers.should.not.include 'Transfer-Encoding'
+    headers.should.include 'Content-Length'
+    body.join.should.equal 'Hello World!'
+  end
+
+  specify 'does not modify response when client is HTTP/1.0' do
+    app = lambda { |env| [200, {}, ['Hello', ' ', 'World!']] }
+    @env['HTTP_VERSION'] = 'HTTP/1.0'
+    status, headers, body = Rack::Chunked.new(app).call(@env)
+    status.should.equal 200
+    headers.should.not.include 'Transfer-Encoding'
+    body.join.should.equal 'Hello World!'
+  end
+
+  specify 'does not modify response when Transfer-Encoding header already present' do
+    app = lambda { |env| [200, {'Transfer-Encoding' => 'identity'}, ['Hello', ' ', 'World!']] }
+    status, headers, body = Rack::Chunked.new(app).call(@env)
+    status.should.equal 200
+    headers['Transfer-Encoding'].should.equal 'identity'
+    body.join.should.equal 'Hello World!'
+  end
+
+  [100, 204, 304].each do |status_code|
+    specify "does not modify response when status code is #{status_code}" do
+      app = lambda { |env| [status_code, {}, []] }
+      status, headers, body = Rack::Chunked.new(app).call(@env)
+      status.should.equal status_code
+      headers.should.not.include 'Transfer-Encoding'
+    end
+  end
+end