Fixed validation test with enabled captcha.

boards/tests.py

@@ -144,6 +144,10 b' class BoardTests(TestCase):'
     def test_post_validation(self):
         """Test the validation of the post form"""
 
+        # Disable captcha for the test
+        captcha_enabled = settings.ENABLE_CAPTCHA
+        settings.ENABLE_CAPTCHA = False
+
         Post.objects.all().delete()
 
         client = Client()
@@ -175,6 +179,9 b' class BoardTests(TestCase):'
         self.assertEqual(2, Post.objects.count(),
                          msg=u'No posts were created')
 
+        # Restore captcha setting
+        settings.ENABLE_CAPTCHA = captcha_enabled
+
     def test_404(self):
         """Test receiving error 404 when opening a non-existent page"""