如何测试向两个收件人发送电子邮件(Rspec)

Question

这是我目前失败的测试:

describe "User request update" do
    let(:user_one) { FactoryGirl.create(:user) }
    let(:user_two) { FactoryGirl.create(:user) }
    let(:mail) { UserMailer.notify_users(user_one, user_two) }  

    it "should notify both users" do
      mail.to.should include(user_one.email)
      mail.to.should include(user_two.email)
    end
  end

这是我的邮件位:

def notify_users(requestor, user)
    [requestor, user].each{ |u| notify_user(requestor, u) }  
  end

def notify_user(requestor, user)
  @requestor = requestor
  @user = user
  mail :to => user.email, :subject => "User requested update"
end

我如何测试是发送给两个用户的邮件？

Answer 1

首先,您应该确保他们有不同的电子邮件地址.

假设你的工厂处理那个(你见过Faker宝石吗？)那么你可以测试上次发送的消息中发送的内容,如下所示:

# The last email sent 
ActionMailer::Base.deliveries.last

您可以检查是否发送了正确数量的消息:

ActionMailer::Base.deliveries.count

所以你的测试看起来像这样:

describe "User request update" do
  let(:user_one) { FactoryGirl.create(:user) }
  let(:user_two) { FactoryGirl.create(:user) }
  # let(:mail) { UserMailer.notify_users(user_one, user_two) } 

  # If your method sends two separate emails:
  it "#notify_users should notify both users" do
    UserMailer.notify_users(user_one, user_two)
    expect(ActionMailer::Base.deliveries.count).to eq(2)
    expect(ActionMailer::Base.deliveries[0].to).to include(user_one.email)
    expect(ActionMailer::Base.deliveries[1].to).to include(user_two.email)
  end

  # If your method sends a single email with both recipients
  it "#notify_users should notify both users" do
    UserMailer.notify_users(user_one, user_two)
    expect(ActionMailer::Base.deliveries.count).to eq(1)
    expect(ActionMailer::Base.deliveries.last.to).to include(user_one.email)
    expect(ActionMailer::Base.deliveries.last.to).to include(user_two.email)
  end
end

你可以用一些辅助宏来使这个更好一些.有关如何执行此操作的详细信息,请参阅此railscast:

http://railscasts.com/episodes/275-how-i-test