1 files changed, 36 insertions, 0 deletions
diff --git a/tests/unit/test_commands_budget.py b/tests/unit/test_commands_budget.py
new file mode 100644
index 0000000..7741840
--- /dev/null
+++ b/tests/unit/test_commands_budget.py
@@ -0,0 +1,36 @@
+# Copyright (C) 2026 Danilo M. <danix@danix.xyz>  GPL-2.0-only
+import unittest
+from unittest.mock import MagicMock
+from types import SimpleNamespace
+import firefly_cli.commands.budget as budget
+
+
+def _ctx(client=None, resolver=None):
+    return SimpleNamespace(client=client or MagicMock(),
+                           resolver=resolver or MagicMock(), human=False)
+
+
+class TestBudgetList(unittest.TestCase):
+    def test_list_defaults_to_current_month(self):
+        client = MagicMock()
+        client.request.return_value = {"data": []}
+        args = SimpleNamespace(start=None, end=None)
+        rc = budget.cmd_list(args, _ctx(client=client))
+        self.assertEqual(rc, 0)
+        _, kwargs = client.request.call_args
+        params = kwargs["params"]
+        self.assertTrue(params["start"].endswith("-01"))
+        self.assertEqual(params["start"][:7], params["end"][:7])
+
+    def test_list_explicit_range(self):
+        client = MagicMock()
+        client.request.return_value = {"data": []}
+        args = SimpleNamespace(start="2026-01-01", end="2026-01-31")
+        budget.cmd_list(args, _ctx(client=client))
+        _, kwargs = client.request.call_args
+        self.assertEqual(kwargs["params"],
+                         {"start": "2026-01-01", "end": "2026-01-31"})
+
+
+if __name__ == "__main__":
+    unittest.main()