Fixed #22465 -- New assertion assertJSONNotEqual

1 files changed, 22 insertions, 0 deletions

diff --git a/django/test/testcases.py b/django/test/testcases.py
index a7986dd028..46237aecd2 100644
--- a/django/test/testcases.py
+++ b/django/test/testcases.py
@@ -676,6 +676,11 @@ class SimpleTestCase(unittest.TestCase):
                 msg_prefix + "Couldn't find '%s' in response" % needle)
 
     def assertJSONEqual(self, raw, expected_data, msg=None):
+        """
+        Asserts that the JSON fragments raw and expected_data are equal.
+        Usual JSON non-significant whitespace rules apply as the heavyweight
+        is delegated to the json library.
+        """
         try:
             data = json.loads(raw)
         except ValueError:
@@ -687,6 +692,23 @@ class SimpleTestCase(unittest.TestCase):
                 self.fail("Second argument is not valid JSON: %r" % expected_data)
         self.assertEqual(data, expected_data, msg=msg)
 
+    def assertJSONNotEqual(self, raw, expected_data, msg=None):
+        """
+        Asserts that the JSON fragments raw and expected_data are not equal.
+        Usual JSON non-significant whitespace rules apply as the heavyweight
+        is delegated to the json library.
+        """
+        try:
+            data = json.loads(raw)
+        except ValueError:
+            self.fail("First argument is not valid JSON: %r" % raw)
+        if isinstance(expected_data, six.string_types):
+            try:
+                expected_data = json.loads(expected_data)
+            except ValueError:
+                self.fail("Second argument is not valid JSON: %r" % expected_data)
+        self.assertNotEqual(data, expected_data, msg=msg)
+
     def assertXMLEqual(self, xml1, xml2, msg=None):
         """
         Asserts that two XML snippets are semantically the same.