如何测试表单提交并验证电子邮件是否已发送

Question

我有一个按钮，打开一个模式窗口，其中包含一个简单的表单发送电子邮件。唯一的字段是消息，我的控制器填充了隐藏的email to和email from字段。表单只发送消息，因此没有模型。

我如何写一个测试来验证电子邮件被发送了?

我的路线

match '/contact_guide', to: 'contact#contact_guide', via: 'post'

控制器

def contact_guide
# Send mail to a guide. 
email_from = params[:email_from]
email_to = params[:email_to]
body = params[:message]
name = params[:name]
ContactMailer.contact_guide(name, email_to, email_from, body).deliver_now
flash[:success] = 'Message sent'
# Go back to the guide page.
u = User.find_by(email: email_to)
g = u.guide
redirect_to guide_url(g)
end

表单HTML

    <%= form_tag(contact_guide_path) do %>
  <div class="form-group">
    <%= label_tag 'message', 'Contact Guide' %>
    <%= text_area_tag 'message', nil, class: 'form-control', 
        rows: 4, placeholder: 'Message...', :required => true %>
    <!-- Hidden to email field -->
    <%= label_tag 'email_to', 'Email', style: 'visibility:hidden;display:none' %>
    <%= email_field_tag 'email_to', nil, class: 'form-control', 
        style: 'visibility:hidden;display:none', value: @guide.user.email %>
    <!-- Hidden from email field -->
    <%= label_tag 'email_from', 'Email', style: 'visibility:hidden;display:none' %>
    <%= email_field_tag 'email_from', nil, class: 'form-control', 
        style: 'visibility:hidden;display:none', value: @email_from %>
    <!-- Hidden guide name field -->
    <%= label_tag 'name', 'Name', style: 'visibility:hidden;display:none' %>
    <%= text_field_tag 'name', nil, class: 'form-control', 
        style: 'visibility:hidden;display:none', value: @guide.user.name %>
    <%= submit_tag "Send Message", class: 'btn btn-default btn-about contact-btn' %>
  </div>
<% end %>

在我的测试中，我尝试这样做

 post contact_guide_path, {message: "This is a message."}

但是我得到了错误

ArgumentError Exception: An SMTP From address is required to send a message. Set the message smtp_envelope_from, return_path, sender, or from address.

Answer 1

添加post语句中缺少的几个参数

post contact_guide_path, {message: "This is a message."}

make it to:

post contact_guide_path, {message: "This is a message.",email_to: "[testing email]", email_from: "[Testint email]" , name: 'ABC'}