125 lines
4.1 KiB
Ruby
125 lines
4.1 KiB
Ruby
require 'stringio'
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require 'time' # for Time#httpdate
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require 'rack/deflater'
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require 'rack/mock'
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describe Rack::Deflater do
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def build_response(status, body, accept_encoding, headers = {})
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body = [body] if body.respond_to? :to_str
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app = lambda { |env| [status, {}, body] }
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request = Rack::MockRequest.env_for("", headers.merge("HTTP_ACCEPT_ENCODING" => accept_encoding))
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response = Rack::Deflater.new(app).call(request)
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return response
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end
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should "be able to deflate bodies that respond to each" do
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body = Object.new
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class << body; def each; yield("foo"); yield("bar"); end; end
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response = build_response(200, body, "deflate")
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response[0].should.equal(200)
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response[1].should.equal({
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"Content-Encoding" => "deflate",
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"Vary" => "Accept-Encoding"
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})
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buf = ''
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response[2].each { |part| buf << part }
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buf.should.equal("K\313\317OJ,\002\000")
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end
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# TODO: This is really just a special case of the above...
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should "be able to deflate String bodies" do
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response = build_response(200, "Hello world!", "deflate")
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response[0].should.equal(200)
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response[1].should.equal({
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"Content-Encoding" => "deflate",
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"Vary" => "Accept-Encoding"
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})
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buf = ''
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response[2].each { |part| buf << part }
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buf.should.equal("\363H\315\311\311W(\317/\312IQ\004\000")
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end
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should "be able to gzip bodies that respond to each" do
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body = Object.new
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class << body; def each; yield("foo"); yield("bar"); end; end
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response = build_response(200, body, "gzip")
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response[0].should.equal(200)
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response[1].should.equal({
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"Content-Encoding" => "gzip",
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"Vary" => "Accept-Encoding",
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})
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buf = ''
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response[2].each { |part| buf << part }
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io = StringIO.new(buf)
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gz = Zlib::GzipReader.new(io)
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gz.read.should.equal("foobar")
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gz.close
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end
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should "be able to fallback to no deflation" do
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response = build_response(200, "Hello world!", "superzip")
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response[0].should.equal(200)
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response[1].should.equal({ "Vary" => "Accept-Encoding" })
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response[2].should.equal(["Hello world!"])
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end
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should "be able to skip when there is no response entity body" do
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response = build_response(304, [], "gzip")
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response[0].should.equal(304)
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response[1].should.equal({})
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response[2].should.equal([])
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end
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should "handle the lack of an acceptable encoding" do
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response1 = build_response(200, "Hello world!", "identity;q=0", "PATH_INFO" => "/")
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response1[0].should.equal(406)
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response1[1].should.equal({"Content-Type" => "text/plain", "Content-Length" => "71"})
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response1[2].should.equal(["An acceptable encoding for the requested resource / could not be found."])
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response2 = build_response(200, "Hello world!", "identity;q=0", "SCRIPT_NAME" => "/foo", "PATH_INFO" => "/bar")
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response2[0].should.equal(406)
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response2[1].should.equal({"Content-Type" => "text/plain", "Content-Length" => "78"})
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response2[2].should.equal(["An acceptable encoding for the requested resource /foo/bar could not be found."])
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end
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should "handle gzip response with Last-Modified header" do
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last_modified = Time.now.httpdate
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app = lambda { |env| [200, { "Last-Modified" => last_modified }, ["Hello World!"]] }
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request = Rack::MockRequest.env_for("", "HTTP_ACCEPT_ENCODING" => "gzip")
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response = Rack::Deflater.new(app).call(request)
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response[0].should.equal(200)
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response[1].should.equal({
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"Content-Encoding" => "gzip",
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"Vary" => "Accept-Encoding",
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"Last-Modified" => last_modified
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})
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buf = ''
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response[2].each { |part| buf << part }
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io = StringIO.new(buf)
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gz = Zlib::GzipReader.new(io)
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gz.read.should.equal("Hello World!")
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gz.close
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end
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should "do nothing when no-transform Cache-Control directive present" do
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app = lambda { |env| [200, {'Cache-Control' => 'no-transform'}, ['Hello World!']] }
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request = Rack::MockRequest.env_for("", "HTTP_ACCEPT_ENCODING" => "gzip")
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response = Rack::Deflater.new(app).call(request)
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response[0].should.equal(200)
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response[1].should.not.include "Content-Encoding"
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response[2].join.should.equal("Hello World!")
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end
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end
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