From 9bf663fdb92ebbfddcaccbcf60cd4f8bfa383906 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Alexis=20M=C3=A9taireau?= <alexis@freedom.press>
Date: Tue, 25 Feb 2025 15:44:08 +0100
Subject: [PATCH] fixup! (WIP) Add tests

---
 tests/test_signatures.py | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/tests/test_signatures.py b/tests/test_signatures.py
index c7ca9b4..8e3814f 100644
--- a/tests/test_signatures.py
+++ b/tests/test_signatures.py
@@ -274,8 +274,16 @@ def test_stores_signatures_updates_last_log_index(valid_signature, mocker, tmp_p
         assert f.read() == "100"
 
 
-def test_is_update_available_nothing_local():
-    pass
+def test_is_update_available_when_no_local_image(mocker):
+    """
+    Test that is_update_available returns True when no local image is
+    currently present.
+    """
+    # Mock container_image_exists to return False
+    mocker.patch(
+        "dangerzone.container_utils.get_local_image_digest",
+        side_effect=dzerrors.ImageNotPresentException,
+    )
 
 
 def test_is_update_available_trims():