JezK
Edit File: spec_content_length.rb
require 'rack/content_length' describe Rack::ContentLength do should "set Content-Length on String bodies if none is set" do app = lambda { |env| [200, {'Content-Type' => 'text/plain'}, "Hello, World!"] } response = Rack::ContentLength.new(app).call({}) response[1]['Content-Length'].should.equal '13' end should "set Content-Length on Array bodies if none is set" do app = lambda { |env| [200, {'Content-Type' => 'text/plain'}, ["Hello, World!"]] } response = Rack::ContentLength.new(app).call({}) response[1]['Content-Length'].should.equal '13' end should "not set Content-Length on variable length bodies" do body = lambda { "Hello World!" } def body.each ; yield call ; end app = lambda { |env| [200, {'Content-Type' => 'text/plain'}, body] } response = Rack::ContentLength.new(app).call({}) response[1]['Content-Length'].should.be.nil end should "not change Content-Length if it is already set" do app = lambda { |env| [200, {'Content-Type' => 'text/plain', 'Content-Length' => '1'}, "Hello, World!"] } response = Rack::ContentLength.new(app).call({}) response[1]['Content-Length'].should.equal '1' end should "not set Content-Length on 304 responses" do app = lambda { |env| [304, {'Content-Type' => 'text/plain'}, []] } response = Rack::ContentLength.new(app).call({}) response[1]['Content-Length'].should.equal nil end should "not set Content-Length when Transfer-Encoding is chunked" do app = lambda { |env| [200, {'Transfer-Encoding' => 'chunked'}, []] } response = Rack::ContentLength.new(app).call({}) response[1]['Content-Length'].should.equal nil end end