Test case for https://github.com/rails/rails/issues/26126

output.txt

❯ ruby route_defaults_test_case.rb
Fetching git://github.com/rails/rails.git
Fetching gem metadata from https://rubygems.org/
Fetching version metadata from https://rubygems.org/
Resolving dependencies...
Using rake 11.2.2
Using concurrent-ruby 1.0.2
Using i18n 0.7.0
Using minitest 5.9.0
Using thread_safe 0.3.5
Using builder 3.2.2
Using erubis 2.7.0
Using mini_portile2 2.1.0
Using pkg-config 1.1.7
Using rack 2.0.1
Using nio4r 1.2.1
Using websocket-extensions 0.1.2
Using mime-types-data 3.2016.0521
Using arel 7.1.1
Using bundler 1.12.5
Using byebug 9.0.5
Using coderay 1.1.1
Using method_source 0.8.2
Using slop 3.6.0
Using thor 0.19.1
Using tzinfo 1.2.2
Using nokogiri 1.6.8
Using rack-test 0.6.3
Using sprockets 3.7.0
Using websocket-driver 0.6.4
Using mime-types 3.1
Using pry 0.10.4
Using activesupport 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using loofah 2.0.3
Using mail 2.6.4
Using pry-byebug 3.4.0
Using rails-dom-testing 2.0.1
Using globalid 0.3.7
Using activemodel 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using rails-html-sanitizer 1.0.3
Using activejob 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using activerecord 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using actionview 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using actionpack 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using actioncable 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using actionmailer 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using railties 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Using sprockets-rails 3.1.1
Using rails 5.1.0.alpha from git://github.com/rails/rails.git (at master@4394e90)
Run options: --seed 40092

# Running:

.E

Finished in 0.001380s, 1449.7828 runs/s, 724.8914 assertions/s.

  1) Error:
BugTest#test_url_for_uses_default_category:
ActionController::UrlGenerationError: No route matches {:action=>"index", :controller=>"tests"}
    /Users/davidcornu/.gem/ruby/2.3.1/bundler/gems/rails-4394e9075189/actionpack/lib/action_dispatch/journey/formatter.rb:50:in `generate'
    /Users/davidcornu/.gem/ruby/2.3.1/bundler/gems/rails-4394e9075189/actionpack/lib/action_dispatch/routing/route_set.rb:629:in `generate'
    /Users/davidcornu/.gem/ruby/2.3.1/bundler/gems/rails-4394e9075189/actionpack/lib/action_dispatch/routing/route_set.rb:660:in `generate'
    /Users/davidcornu/.gem/ruby/2.3.1/bundler/gems/rails-4394e9075189/actionpack/lib/action_dispatch/routing/route_set.rb:707:in `url_for'
    route_defaults_test_case.rb:49:in `test_url_for_uses_default_category'

2 runs, 1 assertions, 0 failures, 1 errors, 0 skips

route_defaults_test_case.rb

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  source "https://rubygems.org"
  gem "rails", github: "rails/rails"
  gem "pry-byebug"
end

require "action_controller/railtie"

class TestApp < Rails::Application
  config.root = File.dirname(__FILE__)
  config.session_store :cookie_store, key: "cookie_store_key"
  secrets.secret_token    = "secret_token"
  secrets.secret_key_base = "secret_key_base"

  config.logger = Logger.new($stdout)
  Rails.logger  = config.logger

  routes.draw do
    resources :tests, path: "/tests/:category", defaults: { category: "unit" }
  end
end

class TestController < ActionController::Base
  include Rails.application.routes.url_helpers

  def index
    render plain: "Home"
  end
end

require "minitest/autorun"
require "rack/test"

class BugTest < Minitest::Test
  include Rack::Test::Methods

  def test_url_helper_uses_default_category
    assert_equal "/tests/unit", app.routes.url_helpers.tests_path
  end

  def test_url_for_uses_default_category
    assert_equal "/tests/unit", app.routes.url_for(controller: 'tests', action: 'index', only_path: true)
  end

  private

  def app
    Rails.application
  end
end