1 files changed, 46 insertions, 0 deletions
diff --git a/tests/unit/test_output.py b/tests/unit/test_output.py
index c71a424..5b154d9 100644
--- a/tests/unit/test_output.py
+++ b/tests/unit/test_output.py
@@ -29,3 +29,49 @@ class TestOutput(unittest.TestCase):
         out = buf.getvalue()
         self.assertIn("Checking", out)
         self.assertIn("id", out)
+
+    def test_emit_human_drops_nested_columns(self):
+        # dict/list-valued fields would dump unreadable blobs; they must be cut.
+        buf = io.StringIO()
+        with redirect_stdout(buf):
+            emit([{"id": "1", "name": "x", "junk": {"a": 1}, "tags": [1, 2]}],
+                 human=True)
+        out = buf.getvalue()
+        self.assertIn("name", out)
+        self.assertNotIn("junk", out)
+        self.assertNotIn("tags", out)
+
+    def test_emit_human_transaction_flattens_splits(self):
+        # The useful fields live in the nested `transactions` split list, and the
+        # raw 12-decimal amount should be trimmed to 2 dp.
+        tx = {"id": "77", "transactions": [{
+            "type": "withdrawal", "date": "2026-06-28T00:00:00+02:00",
+            "amount": "7.400000000000", "currency_code": "EUR",
+            "description": "McDonald", "source_name": "BBVA",
+            "destination_name": "McDonald's", "category_name": "Food"}]}
+        buf = io.StringIO()
+        with redirect_stdout(buf):
+            emit([tx], human=True)
+        out = buf.getvalue()
+        self.assertIn("28/06/2026", out)        # Italian date, no time/zone
+        self.assertIn("7.40", out)              # amount trimmed to 2 dp
+        self.assertNotIn("7.400000", out)
+        self.assertIn("McDonald's", out)        # destination surfaced
+        self.assertIn("Food", out)
+        self.assertNotIn("import_hash", out)    # raw blob not dumped
+
+    def test_emit_color_only_on_tty(self):
+        tx = {"id": "1", "transactions": [{"type": "withdrawal",
+              "date": "2026-06-28", "amount": "1", "currency_code": "EUR",
+              "description": "x", "source_name": "a", "destination_name": "b",
+              "category_name": "c"}]}
+        plain = io.StringIO()
+        emit([tx], human=True, stream=plain)
+        self.assertNotIn("\033[", plain.getvalue())  # piped: no ANSI
+
+        class TTY(io.StringIO):
+            def isatty(self):
+                return True
+        tty = TTY()
+        emit([tx], human=True, stream=tty)
+        self.assertIn("\033[31m", tty.getvalue())    # tty: withdrawal is red