Added assertJsonEqual method to TestCase class

new assertion method allows to compare 2 objects,
ignoring order or nested collections element,
'expected' and 'observed' also could be json-strings

Co-Authored-By: Timofey Durakov <tdurakov@mirantis.com>

Change-Id: I9a16805b0c580caea200509564b7710116c4ac4e

1 files changed, 35 insertions, 0 deletions

diff --git a/nova/tests/unit/test_test.py b/nova/tests/unit/test_test.py
index 1e7b8c8048..d7f3ff9968 100644
--- a/nova/tests/unit/test_test.py
+++ b/nova/tests/unit/test_test.py
@@ -53,6 +53,41 @@ class IsolationTestCase(test.TestCase):
         server.start()
 
 
+class JsonTestCase(test.TestCase):
+    def test_json_equal(self):
+        expected = {
+            "employees": [
+                {"firstName": "Anna", "lastName": "Smith"},
+                {"firstName": "John", "lastName": "Doe"},
+                {"firstName": "Peter", "lastName": "Jones"}
+            ],
+            "locations": set(['Boston', 'Mumbai', 'Beijing', 'Perth'])
+        }
+        observed = """{
+    "employees": [
+        {
+            "lastName": "Doe",
+            "firstName": "John"
+        },
+        {
+            "lastName": "Smith",
+            "firstName": "Anna"
+        },
+        {
+            "lastName": "Jones",
+            "firstName": "Peter"
+        }
+    ],
+    "locations": [
+        "Perth",
+        "Boston",
+        "Mumbai",
+        "Beijing"
+    ]
+}"""
+        self.assertJsonEqual(expected, observed)
+
+
 class BadLogTestCase(test.TestCase):
     """Make sure a mis-formatted debug log will get caught."""