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require 'rack/response'
require 'stringio'
describe Rack::Response do
should "have sensible default values" do
response = Rack::Response.new
status, header, body = response.finish
status.should.equal 200
header.should.equal({})
body.each { |part|
part.should.equal ""
}
response = Rack::Response.new
status, header, body = *response
status.should.equal 200
header.should.equal({})
body.each { |part|
part.should.equal ""
}
end
it "can be written to" do
response = Rack::Response.new
_, _, body = response.finish do
response.write "foo"
response.write "bar"
response.write "baz"
end
parts = []
body.each { |part| parts << part }
parts.should.equal ["foo", "bar", "baz"]
end
it "can set and read headers" do
response = Rack::Response.new
response["Content-Type"].should.equal nil
response["Content-Type"] = "text/plain"
response["Content-Type"].should.equal "text/plain"
end
it "can override the initial Content-Type with a different case" do
response = Rack::Response.new("", 200, "content-type" => "text/plain")
response["Content-Type"].should.equal "text/plain"
end
it "can set cookies" do
response = Rack::Response.new
response.set_cookie "foo", "bar"
response["Set-Cookie"].should.equal "foo=bar"
response.set_cookie "foo2", "bar2"
response["Set-Cookie"].should.equal ["foo=bar", "foo2=bar2"].join("\n")
response.set_cookie "foo3", "bar3"
response["Set-Cookie"].should.equal ["foo=bar", "foo2=bar2", "foo3=bar3"].join("\n")
end
it "can set cookies with the same name for multiple domains" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :domain => "sample.example.com"}
response.set_cookie "foo", {:value => "bar", :domain => ".example.com"}
response["Set-Cookie"].should.equal ["foo=bar; domain=sample.example.com", "foo=bar; domain=.example.com"].join("\n")
end
it "formats the Cookie expiration date accordingly to RFC 6265" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :expires => Time.now+10}
response["Set-Cookie"].should.match(
/expires=..., \d\d ... \d\d\d\d \d\d:\d\d:\d\d .../)
end
it "can set secure cookies" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :secure => true}
response["Set-Cookie"].should.equal "foo=bar; secure"
end
it "can set http only cookies" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :httponly => true}
response["Set-Cookie"].should.equal "foo=bar; HttpOnly"
end
it "can set http only cookies with :http_only" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :http_only => true}
response["Set-Cookie"].should.equal "foo=bar; HttpOnly"
end
it "can set prefers :httponly for http only cookie setting when :httponly and :http_only provided" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :httponly => false, :http_only => true}
response["Set-Cookie"].should.equal "foo=bar"
end
it "can delete cookies" do
response = Rack::Response.new
response.set_cookie "foo", "bar"
response.set_cookie "foo2", "bar2"
response.delete_cookie "foo"
response["Set-Cookie"].should.equal [
"foo2=bar2",
"foo=; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 -0000"
].join("\n")
end
it "can delete cookies with the same name from multiple domains" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :domain => "sample.example.com"}
response.set_cookie "foo", {:value => "bar", :domain => ".example.com"}
response["Set-Cookie"].should.equal ["foo=bar; domain=sample.example.com", "foo=bar; domain=.example.com"].join("\n")
response.delete_cookie "foo", :domain => ".example.com"
response["Set-Cookie"].should.equal ["foo=bar; domain=sample.example.com", "foo=; domain=.example.com; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 -0000"].join("\n")
response.delete_cookie "foo", :domain => "sample.example.com"
response["Set-Cookie"].should.equal ["foo=; domain=.example.com; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 -0000",
"foo=; domain=sample.example.com; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 -0000"].join("\n")
end
it "can delete cookies with the same name with different paths" do
response = Rack::Response.new
response.set_cookie "foo", {:value => "bar", :path => "/"}
response.set_cookie "foo", {:value => "bar", :path => "/path"}
response["Set-Cookie"].should.equal ["foo=bar; path=/",
"foo=bar; path=/path"].join("\n")
response.delete_cookie "foo", :path => "/path"
response["Set-Cookie"].should.equal ["foo=bar; path=/",
"foo=; path=/path; max-age=0; expires=Thu, 01 Jan 1970 00:00:00 -0000"].join("\n")
end
it "can do redirects" do
response = Rack::Response.new
response.redirect "/foo"
status, header, body = response.finish
status.should.equal 302
header["Location"].should.equal "/foo"
response = Rack::Response.new
response.redirect "/foo", 307
status, header, body = response.finish
status.should.equal 307
end
it "has a useful constructor" do
r = Rack::Response.new("foo")
status, header, body = r.finish
str = ""; body.each { |part| str << part }
str.should.equal "foo"
r = Rack::Response.new(["foo", "bar"])
status, header, body = r.finish
str = ""; body.each { |part| str << part }
str.should.equal "foobar"
object_with_each = Object.new
def object_with_each.each
yield "foo"
yield "bar"
end
r = Rack::Response.new(object_with_each)
r.write "foo"
status, header, body = r.finish
str = ""; body.each { |part| str << part }
str.should.equal "foobarfoo"
r = Rack::Response.new([], 500)
r.status.should.equal 500
r = Rack::Response.new([], "200 OK")
r.status.should.equal 200
end
it "has a constructor that can take a block" do
r = Rack::Response.new { |res|
res.status = 404
res.write "foo"
}
status, _, body = r.finish
str = ""; body.each { |part| str << part }
str.should.equal "foo"
status.should.equal 404
end
it "doesn't return invalid responses" do
r = Rack::Response.new(["foo", "bar"], 204)
_, header, body = r.finish
str = ""; body.each { |part| str << part }
str.should.be.empty
header["Content-Type"].should.equal nil
header['Content-Length'].should.equal nil
lambda {
Rack::Response.new(Object.new)
}.should.raise(TypeError).
message.should =~ /stringable or iterable required/
end
it "knows if it's empty" do
r = Rack::Response.new
r.should.be.empty
r.write "foo"
r.should.not.be.empty
r = Rack::Response.new
r.should.be.empty
r.finish
r.should.be.empty
r = Rack::Response.new
r.should.be.empty
r.finish { }
r.should.not.be.empty
end
should "provide access to the HTTP status" do
res = Rack::Response.new
res.status = 200
res.should.be.successful
res.should.be.ok
res.status = 201
res.should.be.successful
res.should.be.created
res.status = 202
res.should.be.successful
res.should.be.accepted
res.status = 400
res.should.not.be.successful
res.should.be.client_error
res.should.be.bad_request
res.status = 401
res.should.not.be.successful
res.should.be.client_error
res.should.be.unauthorized
res.status = 404
res.should.not.be.successful
res.should.be.client_error
res.should.be.not_found
res.status = 405
res.should.not.be.successful
res.should.be.client_error
res.should.be.method_not_allowed
res.status = 418
res.should.not.be.successful
res.should.be.client_error
res.should.be.i_m_a_teapot
res.status = 422
res.should.not.be.successful
res.should.be.client_error
res.should.be.unprocessable
res.status = 501
res.should.not.be.successful
res.should.be.server_error
res.status = 307
res.should.be.redirect
end
should "provide access to the HTTP headers" do
res = Rack::Response.new
res["Content-Type"] = "text/yaml"
res.should.include "Content-Type"
res.headers["Content-Type"].should.equal "text/yaml"
res["Content-Type"].should.equal "text/yaml"
res.content_type.should.equal "text/yaml"
res.content_length.should.be.nil
res.location.should.be.nil
end
it "does not add or change Content-Length when #finish()ing" do
res = Rack::Response.new
res.status = 200
res.finish
res.headers["Content-Length"].should.be.nil
res = Rack::Response.new
res.status = 200
res.headers["Content-Length"] = "10"
res.finish
res.headers["Content-Length"].should.equal "10"
end
it "updates Content-Length when body appended to using #write" do
res = Rack::Response.new
res.status = 200
res.headers["Content-Length"].should.be.nil
res.write "Hi"
res.headers["Content-Length"].should.equal "2"
res.write " there"
res.headers["Content-Length"].should.equal "8"
end
it "calls close on #body" do
res = Rack::Response.new
res.body = StringIO.new
res.close
res.body.should.be.closed
end
it "calls close on #body when 204, 205, or 304" do
res = Rack::Response.new
res.body = StringIO.new
res.finish
res.body.should.not.be.closed
res.status = 204
_, _, b = res.finish
res.body.should.be.closed
b.should.not.equal res.body
res.body = StringIO.new
res.status = 205
_, _, b = res.finish
res.body.should.be.closed
b.should.not.equal res.body
res.body = StringIO.new
res.status = 304
_, _, b = res.finish
res.body.should.be.closed
b.should.not.equal res.body
end
it "wraps the body from #to_ary to prevent infinite loops" do
res = Rack::Response.new
res.finish.last.should.not.respond_to?(:to_ary)
lambda { res.finish.last.to_ary }.should.raise(NoMethodError)
end
end