debconf: set empty password value (#83217)

Fixes: #83214

---------
Signed-off-by: Abhijeet Kasurde <akasurde@redhat.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/test/units/modules/test_debconf.py b/test/units/modules/test_debconf.py
new file mode 100644
index 0000000000..2ec1d6c29b
--- /dev/null
+++ b/test/units/modules/test_debconf.py
@@ -0,0 +1,63 @@
+# Copyright: Contributors to the Ansible project
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+from __future__ import annotations
+
+import pytest
+
+from ansible.modules.debconf import get_password_value
+
+
+password_testdata = [
+    pytest.param(
+        (
+            "ddclient2	ddclient/password1	password	Sample",
+            "ddclient2",
+            "ddclient/password1",
+            "password",
+        ),
+        "Sample",
+        id="valid_password",
+    ),
+    pytest.param(
+        (
+            "ddclient2	ddclient/password1	password",
+            "ddclient2",
+            "ddclient/password1",
+            "password",
+        ),
+        '',
+        id="invalid_password",
+    ),
+    pytest.param(
+        (
+            "ddclient2	ddclient/password	password",
+            "ddclient2",
+            "ddclient/password1",
+            "password",
+        ),
+        '',
+        id="invalid_password_none",
+    ),
+    pytest.param(
+        (
+            "ddclient2	ddclient/password",
+            "ddclient2",
+            "ddclient/password",
+            "password",
+        ),
+        '',
+        id="invalid_line",
+    ),
+]
+
+
+@pytest.mark.parametrize("test_input,expected", password_testdata)
+def test_get_password_value(mocker, test_input, expected):
+    module = mocker.MagicMock()
+    mocker.patch.object(
+        module, "get_bin_path", return_value="/usr/bin/debconf-get-selections"
+    )
+    mocker.patch.object(module, "run_command", return_value=(0, test_input[0], ""))
+
+    res = get_password_value(module, *test_input[1:])
+    assert res == expected