Fixed AttributeError upon a single skipped test

tests/django_example/app3/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin  # NOQA
+
+# Register your models here.

tests/django_example/app3/models.py

@@ -0,0 +1,3 @@
+from django.db import models  # NOQA
+
+# Create your models here.

tests/django_example/app3/tests.py

@@ -0,0 +1,12 @@
+from unittest import skipIf
+
+from django.test import TestCase
+
+
+# Create your tests here.
+@skipIf(condition=True, reason=True)
+class SkipTestCase(TestCase):
+    def test_skip(self):
+        """Test Skip"""
+        pass
+

tests/django_example/app3/views.py

@@ -0,0 +1,3 @@
+from django.shortcuts import render  # NOQA
+
+# Create your views here.

tests/django_example/example/settings.py

@@ -6,7 +6,7 @@
 SECRET_KEY = 'not-a-secret'
 DEBUG = True
 ALLOWED_HOSTS = []
-INSTALLED_APPS = ['app', 'app2']
+INSTALLED_APPS = ['app', 'app2', 'app3']
 MIDDLEWARE_CLASSES = []
 ROOT_URLCONF = 'example.urls'
 TEMPLATES = []

tests/django_test.py

@@ -53,9 +53,10 @@ def _override_settings(self, **kwargs):
             setattr(self.override, key, new_value)
 
     def _check_runner(self, runner):
-        suite = runner.build_suite(test_labels=['app2', 'app'])
+        suite = runner.build_suite(test_labels=['app3', 'app2', 'app'])
         test_ids = [test.id() for test in suite]
         self.assertEqual(test_ids, [
+            'app3.tests.SkipTestCase.test_skip',
             'app2.tests.DummyTestCase.test_pass',
             'app.tests.DummyTestCase.test_negative_comment1',
             'app.tests.DummyTestCase.test_negative_comment2',
@@ -68,6 +69,7 @@ def _check_runner(self, runner):
             'app.tests.DummyTestCase.test_negative_comment1',
             'app.tests.DummyTestCase.test_negative_comment2',
             'app2.tests.DummyTestCase.test_pass',
+            'app3.tests.SkipTestCase.test_skip',
         ]))
 
     def test_django_runner(self):
@@ -135,7 +137,7 @@ def test_django_multiple_reports(self):
         test_files = glob.glob(path.join(self.tmpdir, 'TEST*.xml'))
         self.assertTrue(test_files,
                         'did not generate xml reports where expected.')
-        self.assertEqual(2, len(test_files))
+        self.assertEqual(3, len(test_files))
 
     def test_django_runner_extension(self):
         from xmlrunner.extra.djangotestrunner import XMLTestRunner

xmlrunner/result.py

@@ -593,7 +593,7 @@ def _report_testcase(test_result, xml_testsuite, xml_document):
             )
             result_elem.setAttribute(
                 'message',
-                test_result.test_exception_message
+                str(test_result.test_exception_message)
             )
             if test_result.get_error_info():
                 error_info = safe_unicode(test_result.get_error_info())