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require 'rack/content_length'
describe Rack::ContentLength do
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 "set Content-Length even 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.equal '12'
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 on sendfile responses" do
app = lambda { |env| [200, {'Content-Type' => 'text/plain', 'X-Sendfile' => 'foo'}, %w(Hello World)] }
response = Rack::ContentLength.new(app, "X-Sendfile").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
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