[Autoscaler] Proper resource demand plumbing (#10329)

python/ray/test_utils.py

@@ -336,6 +336,25 @@ def dicts_equal(dict1, dict2, abs_tol=1e-4):
     return True
 
 
+def same_elements(elems_a, elems_b):
+    """Checks if two iterables (such as lists) contain the same elements. Elements
+        do not have to be hashable (this allows us to compare sets of dicts for
+        example). This comparison is not necessarily efficient.
+    """
+    a = list(elems_a)
+    b = list(elems_b)
+
+    for x in a:
+        if x not in b:
+            return False
+
+    for x in b:
+        if x not in a:
+            return False
+
+    return True
+
+
 @ray.remote
 def _put(obj):
     return obj