sorted

packages/aws-library/src/aws_library/ec2/_client.py

@@ -68,10 +68,10 @@ async def get_ec2_instance_capabilities(
         self,
         instance_type_names: set[InstanceTypeType],
     ) -> list[EC2InstanceType]:
-        """returns the ec2 instance types from a list of instance type names
-            NOTE: the order might differ!
+        """Returns the ec2 instance types from a list of instance type names (sorted by name)
+
         Arguments:
-            instance_type_names -- the types to filter with
+            instance_type_names -- the types to filter with. If an empty set, it returns all.
 
         Raises:
             Ec2InstanceTypeInvalidError: some invalid types were used as filter
@@ -95,7 +95,7 @@ async def get_ec2_instance_capabilities(
                         ),
                     )
                 )
-        return list_instances
+        return sorted(list_instances, key=lambda i: i.name)
 
     @ec2_exception_handler(_logger)
     async def launch_instances(

packages/aws-library/tests/test_ec2_client.py

@@ -116,12 +116,7 @@ async def test_get_ec2_instance_capabilities(
         )
     )
     assert instance_types
-    assert len(instance_types) == len(ec2_allowed_instances)
-
-    # all the instance names are found and valid
-    assert all(i.name in ec2_allowed_instances for i in instance_types)
-    for instance_type_name in ec2_allowed_instances:
-        assert any(i.name == instance_type_name for i in instance_types)
+    assert [_.name for _ in instance_types] == sorted(ec2_allowed_instances)
 
 
 async def test_get_ec2_instance_capabilities_empty_list_returns_all_options(