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# frozen_string_literal: true
require_relative 'helper'
describe Rack::Cascade do
def cascade(*args)
Rack::Lint.new Rack::Cascade.new(*args)
end
docroot = File.expand_path(File.dirname(__FILE__))
app1 = Rack::Files.new(docroot)
app2 = Rack::URLMap.new("/crash" => lambda { |env| raise "boom" })
app3 = Rack::URLMap.new("/foo" => lambda { |env|
[200, { "Content-Type" => "text/plain" }, [""]]})
it "dispatch onward on 404 and 405 by default" do
cascade = cascade([app1, app2, app3])
Rack::MockRequest.new(cascade).get("/cgi/test").must_be :ok?
Rack::MockRequest.new(cascade).get("/foo").must_be :ok?
Rack::MockRequest.new(cascade).get("/toobad").must_be :not_found?
Rack::MockRequest.new(cascade).get("/cgi/../..").must_be :client_error?
# Put is not allowed by Rack::Files so it'll 405.
Rack::MockRequest.new(cascade).put("/foo").must_be :ok?
end
it "dispatch onward on whatever is passed" do
cascade = cascade([app1, app2, app3], [404, 403])
Rack::MockRequest.new(cascade).get("/cgi/../bla").must_be :not_found?
end
it "include? returns whether app is included" do
cascade = Rack::Cascade.new([app1, app2])
cascade.include?(app1).must_equal true
cascade.include?(app2).must_equal true
cascade.include?(app3).must_equal false
end
it "return 404 if empty" do
Rack::MockRequest.new(cascade([])).get('/').must_be :not_found?
end
it "uses new response object if empty" do
app = Rack::Cascade.new([])
res = app.call('/')
s, h, body = res
s.must_equal 404
h['Content-Type'].must_equal 'text/plain'
body.must_be_empty
res[0] = 200
h['Content-Type'] = 'text/html'
body << "a"
res = app.call('/')
s, h, body = res
s.must_equal 404
h['Content-Type'].must_equal 'text/plain'
body.must_be_empty
end
it "append new app" do
cascade = Rack::Cascade.new([], [404, 403])
Rack::MockRequest.new(cascade).get('/').must_be :not_found?
cascade << app2
Rack::MockRequest.new(cascade).get('/cgi/test').must_be :not_found?
Rack::MockRequest.new(cascade).get('/cgi/../bla').must_be :not_found?
cascade << app1
Rack::MockRequest.new(cascade).get('/cgi/test').must_be :ok?
Rack::MockRequest.new(cascade).get('/cgi/../..').must_be :client_error?
Rack::MockRequest.new(cascade).get('/foo').must_be :not_found?
cascade << app3
Rack::MockRequest.new(cascade).get('/foo').must_be :ok?
end
it "close the body on cascade" do
body = StringIO.new
closer = lambda { |env| [404, {}, body] }
cascade = Rack::Cascade.new([closer, app3], [404])
Rack::MockRequest.new(cascade).get("/foo").must_be :ok?
body.must_be :closed?
end
end
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