Add typing information, 2/n (#1178)

* Add typing to Docker Stack modules. Clean modules up.

* Add typing to Docker Swarm modules.

* Add typing to unit tests.

* Add more typing.

* Add ignore.txt entries.

tests/unit/plugins/module_utils/test__image_archive.py

@@ -5,6 +5,7 @@
 from __future__ import annotations
 
 import tarfile
+import typing as t
 
 import pytest
 
@@ -22,7 +23,7 @@ from ..test_support.docker_image_archive_stubbing import (
 
 
 @pytest.fixture
-def tar_file_name(tmpdir):
+def tar_file_name(tmpdir: t.Any) -> str:
     """
     Return the name of a non-existing tar file in an existing temporary directory.
     """
@@ -34,11 +35,11 @@ def tar_file_name(tmpdir):
 @pytest.mark.parametrize(
     "expected, value", [("sha256:foo", "foo"), ("sha256:bar", "bar")]
 )
-def test_api_image_id_from_archive_id(expected, value):
+def test_api_image_id_from_archive_id(expected: str, value: str) -> None:
     assert api_image_id(value) == expected
 
 
-def test_archived_image_manifest_extracts(tar_file_name):
+def test_archived_image_manifest_extracts(tar_file_name: str) -> None:
     expected_id = "abcde12345"
     expected_tags = ["foo:latest", "bar:v1"]
 
@@ -46,17 +47,20 @@ def test_archived_image_manifest_extracts(tar_file_name):
 
     actual = archived_image_manifest(tar_file_name)
 
+    assert actual is not None
     assert actual.image_id == expected_id
     assert actual.repo_tags == expected_tags
 
 
-def test_archived_image_manifest_extracts_nothing_when_file_not_present(tar_file_name):
+def test_archived_image_manifest_extracts_nothing_when_file_not_present(
+    tar_file_name: str,
+) -> None:
     image_id = archived_image_manifest(tar_file_name)
 
     assert image_id is None
 
 
-def test_archived_image_manifest_raises_when_file_not_a_tar():
+def test_archived_image_manifest_raises_when_file_not_a_tar() -> None:
     try:
         archived_image_manifest(__file__)
         raise AssertionError()
@@ -65,7 +69,9 @@ def test_archived_image_manifest_raises_when_file_not_a_tar():
         assert str(__file__) in str(e)
 
 
-def test_archived_image_manifest_raises_when_tar_missing_manifest(tar_file_name):
+def test_archived_image_manifest_raises_when_tar_missing_manifest(
+    tar_file_name: str,
+) -> None:
     write_irrelevant_tar(tar_file_name)
 
     try:
@@ -76,7 +82,9 @@ def test_archived_image_manifest_raises_when_tar_missing_manifest(tar_file_name)
         assert "manifest.json" in str(e.__cause__)
 
 
-def test_archived_image_manifest_raises_when_manifest_missing_id(tar_file_name):
+def test_archived_image_manifest_raises_when_manifest_missing_id(
+    tar_file_name: str,
+) -> None:
     manifest = [{"foo": "bar"}]
 
     write_imitation_archive_with_manifest(tar_file_name, manifest)