RSpec 中未初始化的常量错误

Question

我正在尝试使用 Capybara 和 FactoryGirl 以及 RSpec 来测试我的邮件程序。我最终遇到了错误：

/spec/mailers/password_resets_spec.rb:3:in `<top (required)>': uninitialized constant PasswordResets (NameError)
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1327:in `block in load_spec_files'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1325:in `each'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/configuration.rb:1325:in `load_spec_files'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:102:in `setup'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:88:in `run'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:73:in `run'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/lib/rspec/core/runner.rb:41:in `invoke'
    from /home/alex/.rvm/gems/ruby-2.2.1/gems/rspec-core-3.3.2/exe/rspec:4:in `<top (required)>'
    from /home/alex/.rvm/gems/ruby-2.2.1/bin/rspec:23:in `load'
    from /home/alex/.rvm/gems/ruby-2.2.1/bin/rspec:23:in `<main>'
    from /home/alex/.rvm/gems/ruby-2.2.1/bin/ruby_executable_hooks:15:in `eval'
    from /home/alex/.rvm/gems/ruby-2.2.1/bin/ruby_executable_hooks:15:in `<main>'

我的 PasswordReset 资源不包含模型。也许这与此有关？

spec/mailers/password_resets_spec.rb

require "spec_helper"

describe PasswordResets do
  it "emails user when requesting password reset" do
    user = FactoryGirl(:user)
    visit login_path
    click_link "Forgot your password?"
    fill_in "Email", with: user.email
    click_button "Reset Password"
  end
end

spec/spec_helper.rb

require 'simplecov'
SimpleCov.start
require 'factory_girl_rails'
require 'capybara/rspec'

RSpec.configure do |config|
  config.expect_with :rspec do |expectations|
    expectations.include_chain_clauses_in_custom_matcher_descriptions = true
  end


  config.mock_with :rspec do |mocks|
    mocks.verify_partial_doubles = true
  end


end

我做错了什么？

Answer 1

要描述的第一个参数是该示例组的描述。您可以将 PasswordResets 放在字符串中。

describe 'PasswordResets' do

Answer 2

我在这里看到两个问题。

1) PasswordResets 可能不是您的寄件人的正确 class 名称。通常它会以 Mailer 结尾，类似于 PasswordResetMailer。但如果实际上是PasswordResets，那么我们就去2).

2) 如果您使用的是 Rails 应用，您的规范文件需要 require "rails_helper"，而不是 spec_helper。这将设置 Rails，并具有所有正确的自动加载功能，以找到正确的常量。这也会影响用户模型在规范中的加载，以及其他事情。

RSpec 中未初始化的常量错误

uninitialized constant error in RSpec

rspec

ruby-on-rails

capybara

factory-bot