Make sure that image comparison survives random order. (#1240)

tests/integration/targets/docker_image_tag/meta/main.yml

@@ -6,3 +6,4 @@
 dependencies:
   - setup_docker
   - setup_docker_python_deps
+  - setup_utils

tests/integration/targets/docker_image_tag/tasks/main.yml

@@ -76,7 +76,7 @@
           - info_1.images | length == 2
           - info_1.images[0].Id == pulled_images.results[0].image.Id
           - info_1.images[1].Id == pulled_images.results[0].image.Id
-          - tag_1_check == tag_1
+          - tag_1_check | internal__normalize_image("image") == tag_1 | internal__normalize_image("image")
 
     - name: Tag image 1 (idempotent, check mode)
       community.docker.docker_image_tag:
@@ -102,7 +102,7 @@
           - tag_2 is not changed
           - tag_2.diff.before == tag_2.diff.after
           - tag_2.diff.before.images | length == 2
-          - tag_2_check == tag_2
+          - tag_2_check | internal__normalize_image("image") == tag_2 | internal__normalize_image("image")
 
     - name: Tag image 1 (idempotent, different input format, check mode)
       community.docker.docker_image_tag:
@@ -130,7 +130,7 @@
           - tag_3 is not changed
           - tag_3.diff.before == tag_3.diff.after
           - tag_3.diff.before.images | length == 2
-          - tag_3_check == tag_3
+          - tag_3_check | internal__normalize_image("image") == tag_3 | internal__normalize_image("image")
 
     - name: Tag image 1 (one more, check mode)
       community.docker.docker_image_tag:
@@ -173,7 +173,7 @@
           - info_4.images[0].Id == pulled_images.results[0].image.Id
           - info_4.images[1].Id == pulled_images.results[0].image.Id
           - info_4.images[2].Id == pulled_images.results[0].image.Id
-          - tag_4_check == tag_4
+          - tag_4_check | internal__normalize_image("image") == tag_4 | internal__normalize_image("image")
 
     - name: Tag image 2 (only change missing one, check mode)
       community.docker.docker_image_tag:
@@ -219,7 +219,7 @@
           - info_5.images[1].Id == pulled_images.results[0].image.Id
           - info_5.images[2].Id == pulled_images.results[1].image.Id
           - info_5.images[3].Id == pulled_images.results[0].image.Id
-          - tag_5_check == tag_5
+          - tag_5_check | internal__normalize_image("image") == tag_5 | internal__normalize_image("image")
 
     - name: Tag image 2 (idempotent, check mode)
       community.docker.docker_image_tag:
@@ -249,7 +249,7 @@
           - tag_6 is not changed
           - tag_6.diff.before == tag_6.diff.after
           - tag_6.diff.before.images | length == 3
-          - tag_6_check == tag_6
+          - tag_6_check | internal__normalize_image("image") == tag_6 | internal__normalize_image("image")
 
     - name: Tag image 2 (only change wrong ones, check mode)
       community.docker.docker_image_tag:
@@ -296,7 +296,7 @@
           - info_7.images[1].Id == pulled_images.results[1].image.Id
           - info_7.images[2].Id == pulled_images.results[1].image.Id
           - info_7.images[3].Id == pulled_images.results[0].image.Id
-          - tag_7_check == tag_7
+          - tag_7_check | internal__normalize_image("image") == tag_7 | internal__normalize_image("image")
 
     - name: Tag image 2 (idempotent, check mode)
       community.docker.docker_image_tag:
@@ -326,7 +326,7 @@
           - tag_8 is not changed
           - tag_8.diff.before == tag_8.diff.after
           - tag_8.diff.before.images | length == 3
-          - tag_8_check == tag_8
+          - tag_8_check | internal__normalize_image("image") == tag_8 | internal__normalize_image("image")
 
     - name: Tag image 3 (source image has digest)
       community.docker.docker_image_tag:

tests/integration/targets/setup_utils/filter_plugins/utils.py

@@ -0,0 +1,46 @@
+# Copyright (c) 2026, Felix Fontein <felix@fontein.de>
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+from __future__ import annotations
+
+from collections.abc import Mapping, Sequence
+
+
+def _normalize_image_impl(data):
+    identity = data.get("Identity")
+    if not isinstance(identity, Mapping):
+        return data
+    pull = identity.get("Pull")
+    if not isinstance(pull, Sequence):
+        return data
+    new_identity = dict(identity)
+    new_identity["Pull"] = sorted(identity["Pull"], key=lambda entry: entry.get("Repository") or "")
+    new_data = dict(data)
+    new_data["Identity"] = new_identity
+    return new_data
+
+
+def _process(data, place_parts, place_index, processor):
+    if place_index == len(place_parts):
+        return processor(data)
+    new_data = dict(data)
+    new_data[place_parts[place_index]] = _process(data[place_parts[place_index]], place_parts, place_index + 1, processor)
+    return new_data
+
+
+def normalize_image(data, *places):
+    if not places:
+        return _normalize_image_impl(data)
+    for place in places:
+        data = _process(data, place.split("."), 0, _normalize_image_impl)
+    return data
+
+
+class FilterModule:
+    """Utilities for community.docker tests."""
+
+    def filters(self):
+        return {
+            'internal__normalize_image': normalize_image,
+        }

tests/integration/targets/setup_utils/tasks/main.yml

@@ -0,0 +1,4 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later