test: add test case nested dicts

Author: ritvi-alagusankar

testing/test_error_diffs.py

@@ -230,33 +230,51 @@ def test_this():
     pytest.param(
         """
         def test_this():
-            result = {'c': 3, 'd': 4, 'b': 2, 'a': 1}
-            expected = {'d': 5, 'c': 3, 'b': 1}
+            result = {
+                "b": {"m": 3, "n": 4},
+                "a": {"x": 1, "y": 2},
+                "c": {"k": 5, "l": 6}
+            }
+            expected = {
+                "c": {"l": 6, "k": 5},
+                "e": {"v": 8},
+                "d": {"u": 7}
+            }
             assert result == expected
         """,
         """
         >       assert result == expected
-        E       AssertionError: assert {'c': 3, 'd': 4, 'b': 2, 'a': 1} == {'d': 5, 'c': 3, 'b': 1}
+        E       AssertionError: assert {'b': {'m': 3, 'n': 4}, 'a': {'x': 1, 'y': 2}, 'c': {'k': 5, 'l': 6}} == {'c': {'l': 6, 'k': 5}, 'e': {'v': 8}, 'd': {'u': 7}}
         E         Common items:
-        E         {'c': 3}
-        E         Differing items:
-        E         {'d': 4} != {'d': 5}
-        E         {'b': 2} != {'b': 1}
-        E         Left contains 1 more item:
-        E         {'a': 1}
+        E         {'c': {'k': 5, 'l': 6}}
+        E         Left contains 2 more items:
+        E         {'b': {'m': 3, 'n': 4}, 'a': {'x': 1, 'y': 2}}
+        E         Right contains 2 more items:
+        E         {'e': {'v': 8}, 'd': {'u': 7}}
         E         Full diff:
         E           {
-        E         -     'd': 5,
-        E               'c': 3,
-        E         +     'd': 4,
-        E         -     'b': 1,
-        E         ?          ^
-        E         +     'b': 2,
-        E         ?          ^
-        E         +     'a': 1,
+        E         +     'b': {
+        E         +         'm': 3,
+        E         +         'n': 4,
+        E         +     },
+        E         +     'a': {
+        E         +         'x': 1,
+        E         +         'y': 2,
+        E         +     },
+        E               'c': {
+        E         +         'k': 5,
+        E                   'l': 6,
+        E         -         'k': 5,
+        E         -     },
+        E         -     'e': {
+        E         -         'v': 8,
+        E         -     },
+        E         -     'd': {
+        E         -         'u': 7,
+        E               },
         E           }
-        """,
-        id="Compare dicts with different order and values",
+                """,
+                id="Compare nested dicts and check order of diff",
     ),
     pytest.param(
         """