Add unit tests for lenient_lowercase function (#58586)

test/units/module_utils/common/text/formatters/test_lenient_lowercase.py

@@ -0,0 +1,68 @@
+# -*- coding: utf-8 -*-
+# Copyright 2019, Andrew Klychkov @Andersson007 <aaklychkov@mail.ru>
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+from datetime import datetime
+
+import pytest
+
+from ansible.module_utils.common.text.formatters import lenient_lowercase
+
+
+INPUT_LIST = [
+    u'HELLO',
+    u'Ёлка',
+    u'cafÉ',
+    u'くらとみ',
+    b'HELLO',
+    1,
+    {1: 'Dict'},
+    True,
+    [1],
+    3.14159,
+]
+
+EXPECTED_LIST = [
+    u'hello',
+    u'ёлка',
+    u'café',
+    u'くらとみ',
+    b'hello',
+    1,
+    {1: 'Dict'},
+    True,
+    [1],
+    3.14159,
+]
+
+result_list = lenient_lowercase(INPUT_LIST)
+
+
+@pytest.mark.parametrize(
+    'input_value,expected_outcome',
+    [
+        (result_list[0], EXPECTED_LIST[0]),
+        (result_list[1], EXPECTED_LIST[1]),
+        (result_list[2], EXPECTED_LIST[2]),
+        (result_list[3], EXPECTED_LIST[3]),
+        (result_list[4], EXPECTED_LIST[4]),
+        (result_list[5], EXPECTED_LIST[5]),
+        (result_list[6], EXPECTED_LIST[6]),
+        (result_list[7], EXPECTED_LIST[7]),
+        (result_list[8], EXPECTED_LIST[8]),
+        (result_list[9], EXPECTED_LIST[9]),
+    ]
+)
+def test_lenient_lowercase(input_value, expected_outcome):
+    """Test that lenient_lowercase() proper results."""
+    assert input_value == expected_outcome
+
+
+@pytest.mark.parametrize('input_data', [1, False, 1.001, 1j, datetime.now(), ])
+def test_lenient_lowercase_illegal_data_type(input_data):
+    """Test passing objects of illegal types to lenient_lowercase()."""
+    with pytest.raises(TypeError, match='object is not iterable'):
+        lenient_lowercase(input_data)