水豚/ sinatra測試的機架錯誤…似乎沒有通過Sinatra應用程序

Question

嘗試設置capybara / rspec來測試一個簡單的sinatra應用程序，但始終出現機架錯誤。

hello.rb的

require 'sinatra'

class App < Sinatra::Base
  get "/" do
    "hello hello!"
  end

  run! if app_file == $0
end

投機/ hello_spec.rb

require File.join(File.dirname(__FILE__), '..', 'hello.rb')

require 'rspec'
require 'capybara'
require 'capybara/dsl'
require 'capybara/rspec'

set :environment, :test

describe 'The Hello App' do

  include Capybara::DSL
  def setup
    Capybara.app = App
  end

  it "says hello when browsing /" do
    visit '/'
    page.should have_content('hello')
  end
end

注意，我也嘗試過

  def setup
    Capybara.app = App.new
  end

哪個產生了同樣的錯誤。

錯誤：

C:\Sites\misc\qrgen>bundle exec rspec
F

Failures:

  1) The Hello App says hello when browsing /
     Failure/Error: visit '/'
     ArgumentError:
       rack-test requires a rack application, but none was given
     # ./spec/hello_spec.rb:18:in `block (2 levels) in <top (required)>'

Finished in 0.374 seconds
1 example, 1 failure

Failed examples:

rspec ./spec/hello_spec.rb:17 # The Hello App says hello when browsing /

有和沒有bundle exec時運行相同的錯誤。 有任何想法嗎？

的Gemfile：

gem "sinatra"
gem "sinatra-contrib"
gem "sinatra-flash"
gem "slim"

gem "rspec"
gem "capybara"
gem "rack-test"

Answer 1

希望這對嘗試從Sinatra文檔中進行測試的其他人很有用。

更改

def setup
  Capybara.app = App
end

至

Capybara.app = App

解決了問題。