Move `BroadcastMessage#status` to a helper since it's presentational

app/helpers/broadcast_messages_helper.rb

@@ -21,4 +21,14 @@ module BroadcastMessagesHelper
     style
   end
+
+  def broadcast_message_status(broadcast_message)
+    if broadcast_message.active?
+      'Active'
+    elsif broadcast_message.ended?
+      'Expired'
+    else
+      'Pending'
+    end
+  end
 end

app/models/broadcast_message.rb

@@ -40,14 +40,4 @@ class BroadcastMessage < ActiveRecord::Base
   def ended?
     ends_at < Time.zone.now
   end
-
-  def status
-    if active?
-      'Active'
-    elsif ended?
-      'Expired'
-    else
-      'Pending'
-    end
-  end
 end

app/views/admin/broadcast_messages/index.html.haml

@@ -23,7 +23,7 @@
       - @broadcast_messages.each do |message|
         %tr
           %td
-            = message.status
+            = broadcast_message_status(message)
           %td
             = broadcast_message(message)
           %td

spec/helpers/broadcast_messages_helper_spec.rb

@@ -37,4 +37,24 @@ describe BroadcastMessagesHelper do
         to match('background-color: #f2dede; color: #b94a48')
     end
   end
+
+  describe 'broadcast_message_status' do
+    it 'returns Active' do
+      message = build(:broadcast_message)
+
+      expect(helper.broadcast_message_status(message)).to eq 'Active'
+    end
+
+    it 'returns Expired' do
+      message = build(:broadcast_message, :expired)
+
+      expect(helper.broadcast_message_status(message)).to eq 'Expired'
+    end
+
+    it 'returns Pending' do
+      message = build(:broadcast_message, :future)
+
+      expect(helper.broadcast_message_status(message)).to eq 'Pending'
+    end
+  end
 end

spec/models/broadcast_message_spec.rb

@@ -111,24 +111,4 @@ describe BroadcastMessage, models: true do
       end
     end
   end
-
-  describe '#status' do
-    it 'returns Active' do
-      message = build(:broadcast_message)
-
-      expect(message.status).to eq 'Active'
-    end
-
-    it 'returns Expired' do
-      message = build(:broadcast_message, :expired)
-
-      expect(message.status).to eq 'Expired'
-    end
-
-    it 'returns Pending' do
-      message = build(:broadcast_message, :future)
-
-      expect(message.status).to eq 'Pending'
-    end
-  end
 end