Show html/text part both if mail consists of multipart

lib/automaildoc/document.rb

@@ -46,5 +46,17 @@ def subject
     def body
       mail.body || ''
     end
+
+    def multipart?
+      mail.multipart?
+    end
+
+    def text_part
+      mail.text_part
+    end
+
+    def html_part
+      mail.html_part
+    end
   end
 end

lib/automaildoc/templates/mail.html.erb

@@ -18,8 +18,20 @@
       <span class="badge badge-default"><%= mail %></span>
     <% end %>
   </div>
+
+  <h4>Subject</h4>
   <pre><%= subject %></pre>
-  <pre><%= body %></pre>
+
+  <h4>Body</h4>
+  <% if multipart? %>
+    <h5><%= html_part.content_type %></h5>
+    <pre><%= html_part.body %></pre>
+
+    <h5><%= text_part.content_type %></h5>
+    <pre><%= text_part.body %></pre>
+  <% else %>
+    <pre><%= body %></pre>
+  <% end %>
 </div>
 
-<hr>
+<hr/>

spec/dummy/doc/toc.html

@@ -132,8 +132,13 @@ <h3>Meetup mail should sent to user</h3>
     BCC:
 
   </div>
+
+  <h4>Subject</h4>
   <pre>How about pair programming session?</pre>
-  <pre>Hey, Chris!
+
+  <h4>Body</h4>
+
+    <pre>Hey, Chris!
 
 As you know, we keep the meetups on a regular monthly basis: the first Monday of the month, at 7:30pm.
 
@@ -146,9 +151,10 @@ <h3>Meetup mail should sent to user</h3>
 Awesome Startup
 https://awesome.example.com/
 </pre>
+
 </div>
 
-<hr>
+<hr/>
 
 
             <div id="./spec/mails/signup_spec.rb[1:1]" class="mail">
@@ -171,10 +177,30 @@ <h3>Sign up mail for newly signed up user</h3>
       <span class="badge badge-default">data-analysis@example.com</span>
 
   </div>
+
+  <h4>Subject</h4>
   <pre>Welcome to our awesome new service!</pre>
-  <pre>Hello Johns Lee!
 
-You’ve recently signed up to our <br>Awesome Product</br>, and we hope that you’ve noticed that there is much more to it than boring one.
+  <h4>Body</h4>
+
+    <h5>text/html; charset=UTF-8</h5>
+    <pre><h1>Hello Johns Lee!</h1>
+
+You’ve recently signed up to our <b>Awesome Product</b>,<br/>and we hope that you’ve noticed that there is much more to it than boring one.
+
+Let’s see what else you can do on our product.
+
+----------------------------------------------------
+
+Awesome Startup
+https://awesome.example.com/
+</pre>
+
+    <h5>text/plain</h5>
+    <pre>Hello Johns Lee!
+
+You’ve recently signed up to our Awesome Product,
+and we hope that you’ve noticed that there is much more to it than boring one.
 
 Let’s see what else you can do on our product.
 
@@ -183,9 +209,10 @@ <h3>Sign up mail for newly signed up user</h3>
 Awesome Startup
 https://awesome.example.com/
 </pre>
+
 </div>
 
-<hr>
+<hr/>
 
 
         </div>

spec/mails/signup_spec.rb

@@ -9,25 +9,46 @@
       to      'early-adoptor@example.com'
       bcc     ['customer-support@example.com', 'data-analysis@example.com']
       subject 'Welcome to our awesome new service!'
-      body    <<~EOS
-        Hello Johns Lee!
 
-        You’ve recently signed up to our <br>Awesome Product</br>, and we hope that you’ve noticed that there is much more to it than boring one.
+      text_part do
+        body <<~EOS
+          Hello Johns Lee!
 
-        Let’s see what else you can do on our product.
+          You’ve recently signed up to our Awesome Product,
+          and we hope that you’ve noticed that there is much more to it than boring one.
 
-        ----------------------------------------------------
+          Let’s see what else you can do on our product.
 
-        Awesome Startup
-        https://awesome.example.com/
-      EOS
+          ----------------------------------------------------
+
+          Awesome Startup
+          https://awesome.example.com/
+        EOS
+      end
+
+      html_part do
+        content_type 'text/html; charset=UTF-8'
+        body <<~EOS
+          <h1>Hello Johns Lee!</h1>
+
+          You’ve recently signed up to our <b>Awesome Product</b>,<br/>and we hope that you’ve noticed that there is much more to it than boring one.
+
+          Let’s see what else you can do on our product.
+
+          ----------------------------------------------------
+
+          Awesome Startup
+          https://awesome.example.com/
+        EOS
+      end
     end
   }
 
-  it 'should sent to user' do
+  it 'should sent to user with text/html parts' do
     expect(mail.from).to match_array ['awesome-startup@example.com']
     expect(mail.to).to match_array ['early-adoptor@example.com']
     expect(mail.subject).to eq('Welcome to our awesome new service!')
-    expect(mail.body.to_s).to include 'Johns Lee'
+    expect(mail.text_part.body.to_s).to include 'Johns Lee'
+    expect(mail.html_part.body.to_s).to include 'Johns Lee'
   end
 end