--- a/candolint/handlers.py	Tue Jul 05 17:45:29 2016 +0800
+++ b/candolint/handlers.py	Tue Jul 05 20:42:35 2016 +0800
@@ -81,13 +81,18 @@
             check = get_or_404(Check, project=project, ordinal=check_num)
         lines = json_decode(check.lines)
         if format_ == 'raw':
-            self.set_header('Content-Type', 'text/plain; charset=utf-8')
-            for line in lines:
-                self.write(line['text'])
-                self.write('\n')
-            self.finish()
+            self.get_raw(project, check, lines)
         else:
-            self.render('check.html', project=project, check=check, lines=lines)
+            self.get_html(project, check, lines)
+
+    def get_raw(self, project, check, lines):
+        self.set_header('Content-Type', 'text/plain; charset=utf-8')
+        for line in lines:
+            self.write(line['text'])
+            self.write('\n')
+
+    def get_html(self, project, check, lines):
+        self.render('check.html', project=project, check=check, lines=lines)
 
 
 class StatusHandler(BaseHandler):