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require 'isolation/abstract_unit'
module ApplicationTests
class MiddlewareTest < ActiveSupport::TestCase
include ActiveSupport::Testing::Isolation
def setup
build_app
boot_rails
FileUtils.rm_rf "#{app_path}/config/environments"
end
def teardown
teardown_app
end
def app
@app ||= Rails.application
end
test "default middleware stack" do
add_to_config "config.action_dispatch.x_sendfile_header = 'X-Sendfile'"
boot!
assert_equal [
"Rack::Sendfile",
"ActionDispatch::Static",
"Rack::Lock",
"ActiveSupport::Cache::Strategy::LocalCache",
"Rack::Runtime",
"Rack::MethodOverride",
"ActionDispatch::RequestId",
"Rails::Rack::Logger", # must come after Rack::MethodOverride to properly log overridden methods
"ActionDispatch::ShowExceptions",
"ActionDispatch::DebugExceptions",
"ActionDispatch::RemoteIp",
"ActionDispatch::Reloader",
"ActionDispatch::Callbacks",
"ActiveRecord::ConnectionAdapters::ConnectionManagement",
"ActiveRecord::QueryCache",
"ActionDispatch::Cookies",
"ActionDispatch::Session::CookieStore",
"ActionDispatch::Flash",
"ActionDispatch::ParamsParser",
"Rack::Head",
"Rack::ConditionalGet",
"Rack::ETag"
], middleware
end
test "Rack::Cache is not included by default" do
boot!
assert !middleware.include?("Rack::Cache"), "Rack::Cache is not included in the default stack unless you set config.action_dispatch.rack_cache"
end
test "Rack::Cache is present when action_dispatch.rack_cache is set" do
add_to_config "config.action_dispatch.rack_cache = true"
boot!
assert_equal "Rack::Cache", middleware.first
end
test "ActionDispatch::SSL is present when force_ssl is set" do
add_to_config "config.force_ssl = true"
boot!
assert middleware.include?("ActionDispatch::SSL")
end
test "ActionDispatch::SSL is configured with options when given" do
add_to_config "config.force_ssl = true"
add_to_config "config.ssl_options = { host: 'example.com' }"
boot!
assert_equal AppTemplate::Application.middleware.first.args, [{host: 'example.com'}]
end
test "removing Active Record omits its middleware" do
use_frameworks []
boot!
assert !middleware.include?("ActiveRecord::ConnectionAdapters::ConnectionManagement")
assert !middleware.include?("ActiveRecord::QueryCache")
end
test "removes lock if cache classes is set" do
add_to_config "config.cache_classes = true"
boot!
assert !middleware.include?("Rack::Lock")
end
test "removes lock if allow concurrency is set" do
add_to_config "config.allow_concurrency = true"
boot!
assert !middleware.include?("Rack::Lock")
end
test "removes static asset server if serve_static_assets is disabled" do
add_to_config "config.serve_static_assets = false"
boot!
assert !middleware.include?("ActionDispatch::Static")
end
test "can delete a middleware from the stack" do
add_to_config "config.middleware.delete ActionDispatch::Static"
boot!
assert !middleware.include?("ActionDispatch::Static")
end
test "includes exceptions middlewares even if action_dispatch.show_exceptions is disabled" do
add_to_config "config.action_dispatch.show_exceptions = false"
boot!
assert middleware.include?("ActionDispatch::ShowExceptions")
assert middleware.include?("ActionDispatch::DebugExceptions")
end
test "removes ActionDispatch::Reloader if cache_classes is true" do
add_to_config "config.cache_classes = true"
boot!
assert !middleware.include?("ActionDispatch::Reloader")
end
test "use middleware" do
use_frameworks []
add_to_config "config.middleware.use Rack::Config"
boot!
assert_equal "Rack::Config", middleware.last
end
test "insert middleware after" do
add_to_config "config.middleware.insert_after Rack::Sendfile, Rack::Config"
boot!
assert_equal "Rack::Config", middleware.second
end
test "Rails.cache does not respond to middleware" do
add_to_config "config.cache_store = :memory_store"
boot!
assert_equal "Rack::Runtime", middleware.fourth
end
test "Rails.cache does respond to middleware" do
boot!
assert_equal "Rack::Runtime", middleware.fifth
end
test "insert middleware before" do
add_to_config "config.middleware.insert_before Rack::Sendfile, Rack::Config"
boot!
assert_equal "Rack::Config", middleware.first
end
test "can't change middleware after it's built" do
boot!
assert_raise RuntimeError do
app.config.middleware.use Rack::Config
end
end
# ConditionalGet + Etag
test "conditional get + etag middlewares handle http caching based on body" do
make_basic_app
class ::OmgController < ActionController::Base
def index
if params[:nothing]
render text: ""
else
render text: "OMG"
end
end
end
etag = "5af83e3196bf99f440f31f2e1a6c9afe".inspect
get "/"
assert_equal 200, last_response.status
assert_equal "OMG", last_response.body
assert_equal "text/html; charset=utf-8", last_response.headers["Content-Type"]
assert_equal "max-age=0, private, must-revalidate", last_response.headers["Cache-Control"]
assert_equal etag, last_response.headers["Etag"]
get "/", {}, "HTTP_IF_NONE_MATCH" => etag
assert_equal 304, last_response.status
assert_equal "", last_response.body
assert_equal nil, last_response.headers["Content-Type"]
assert_equal "max-age=0, private, must-revalidate", last_response.headers["Cache-Control"]
assert_equal etag, last_response.headers["Etag"]
get "/?nothing=true"
assert_equal 200, last_response.status
assert_equal "", last_response.body
assert_equal "text/html; charset=utf-8", last_response.headers["Content-Type"]
assert_equal "no-cache", last_response.headers["Cache-Control"]
assert_equal nil, last_response.headers["Etag"]
end
test "ORIGINAL_FULLPATH is passed to env" do
boot!
env = ::Rack::MockRequest.env_for("/foo/?something")
Rails.application.call(env)
assert_equal "/foo/?something", env["ORIGINAL_FULLPATH"]
end
private
def boot!
require "#{app_path}/config/environment"
end
def middleware
AppTemplate::Application.middleware.map(&:klass).map(&:name)
end
end
end
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