Added a count of the untested lines, to see which file would give you…

… the most bang-for-buck.

lib/cover_me/index.rb

@@ -21,7 +21,15 @@ def total_loc
     end
     return @total_loc
   end
-
+
+  # Returns the total number of untested lines of code across all files.
+  def total_untested_loc
+    unless @total_untested_loc
+      @total_untested_loc = self.reports.inject(0) {|sum, x| sum += (x.lines_of_code - x.lines_executed); sum}
+    end
+    return @total_untested_loc
+  end
+
   # Returns an average percent across all files.
   def percent_tested
     unless @percent_tested

lib/cover_me/templates/index.html.erb

@@ -102,6 +102,7 @@
           <th>File</th>
           <th>Lines</th>
           <th>Lines Of Code</th>
+          <th>Untested Lines of Code</th>
           <th>Tested %</th>
         </tr>
       </thead>
@@ -118,6 +119,9 @@
             <td>
               <%= report.lines_of_code %>
             </td>
+            <td>
+              <%= report.lines_of_code - report.lines_executed %>
+            </td>
             <td>
               <%= report.executed_percent %>%
             </td>
@@ -129,6 +133,7 @@
         <th>Total</th>
         <th><%= index.total_lines %></th>
         <th><%= index.total_loc %></th>
+        <th><%= index.total_untested_loc %></th>
         <th><%= index.percent_tested %>%</th>
       </tr>
     </table>

lib/cover_me/templates/report.html.erb

@@ -52,6 +52,7 @@
         <th>File</th>
         <th>Lines</th>
         <th>Lines Of Code</th>
+        <th>Untested Lines of Code</th>
         <th>Tested %</th>
       </tr>
       <tr valign='top'>
@@ -64,6 +65,7 @@
         </td>
         <td><%= report.lines %></td>
         <td><%= report.lines_of_code %></td>
+        <td><%= report.lines_of_code - report.lines_executed %></td>
         <td><%= report.executed_percent %>%</td>
       </tr>
     </table>