rspec 使用 Mailer 的测试失败

Question

我遇到了一个问题，测试不会通过，因为它无法识别 completed_payments 上的 user，这是列表模型中的一种方法。有人知道为什么会这样吗？

错误是：

1) ListingMailer#sold_email Failure/Error：

您的商品由 <%= @listing.completed_payment.user.username %> (<%= @listing.completed_payment.user.paypal_email %>) 购买上市价格 £<%= "%.2f" % (@listing.price_cents/100.00) %>.

ActionView::Template::Error: nil:NilClass

的未定义方法“用户”

文件如下：

listing_mailer.rb

class ListingMailer < ApplicationMailer
  def sold_email(listing)
    @user = listing.user
    @listing = listing
    mail(to: listing.user_email, subject: 'You have sold one of your listings')
  end

sold_email.html.erb

                        <p>Dear <%= @user.first_name %>,</p>
                        <p>Good news! You have made a sale:</p>
                        <!-- Action -->
                        <p> <%= link_to "#{@listing.version_title} by #{@listing.artist_name}", listing_url(@listing) %></p>
                        <p> Your item was bought by <strong><%= @listing.completed_payment.user.username %> (<%= @listing.completed_payment.user.paypal_email %>)</strong> for the listed price of <strong>£<%= "%.2f" % (@listing.price_cents/100.00) %></strong>.</p>
                        <p>The Paypal reference is <%= @listing.completed_payment.paypal_reference %>.</p>
                        <p>Thanks for using elvinyl,</p>
                        <p>Keith and the elvinyl team</p>

listing_mailer_spec.rb

  describe '#sold_email' do
    let(:listing) { create(:listing, :active) }
    let(:payment) { create(:payment, status: :finished, listing: listing) }
    let(:email)   { ListingMailer.sold_email(listing) }

    it { expect(email.to).to eq([listing.user_email]) }
    it { expect(email.from).to eq(ENV.fetch('EMAIL_FROM_ADDRESS')) }
    it { expect(email.subject).to eq 'You have sold one of your listings' }
  end

谢谢

Answer 1

我相信这是因为您没有调用 payment 来实例化它。因此，listings 对象上没有付款。

有很多方法可以解决这个问题，您可以在预期之前调用 payment 或执行类似

的操作

ListingMailer.sold_email(payment.listing)

或者，在您的列表工厂中有一个特征，以便它会为您创建一个完整的支付对象。类似于 create(:listing, :active, :complete_payment)

rspec 使用 Mailer 的测试失败

rspec failing tests with Mailer

ruby

rspec

ruby-on-rails

undefined

mailer