Bnot : split large copies into pieces.

tests/test_gui_core.py

@@ -2338,12 +2338,28 @@ class StandardCliTests(unittest.TestCase):
             ("01", "Ex 2", image, 0, []),
             ("02", "Ex 1", image, 0, []),
         ]
-        with patch.object(module, "MAX_HEIGHT_PX", 100), self.assertRaises(
-            CliError
-        ) as raised:
-            module.split_batches(rendered)
-        self.assertIn("Copie01", str(raised.exception))
-        self.assertIn("cannot be split", str(raised.exception))
+        with patch.object(module, "MAX_HEIGHT_PX", 100):
+            batches = module.split_batches(rendered)
+        self.assertEqual(batches, [rendered[:2], rendered[2:]])
+
+    def test_grouped_oversized_answer_is_saved_as_its_own_group(self) -> None:
+        module = self.modules["annotating_by_label"]
+        rendered = [
+            ("01", "Ex 1", Image.new("RGB", (10, 40)), 0, []),
+            ("02", "Ex 1", Image.new("RGB", (10, 120)), 0, []),
+            ("03", "Ex 1", Image.new("RGB", (10, 50)), 0, []),
+        ]
+        with tempfile.TemporaryDirectory() as directory, patch.object(module, "MAX_HEIGHT_PX", 100):
+            batches = module.split_batches(rendered)
+            self.assertEqual(batches, [[rendered[0], rendered[2]], [rendered[1]]])
+            for index, batch in enumerate(batches, start=1):
+                module.save_batch(batch, "Ex 1", index, Path(directory))
+            metadata = read_json(Path(directory) / "Ex 1 G2/bnote.json")
+            self.assertEqual(metadata["height"], 120)
+            self.assertEqual([item["id"] for item in metadata["images"]], ["02"])
+            self.assertTrue((Path(directory) / "Ex 1 G2/Concat.pdf").is_file())
+            with self.assertRaises(CliError):
+                module.save_batch(rendered[:2], "Ex 1", 3, Path(directory))
 
     def test_grouped_batching_reuses_space_in_earlier_groups(self) -> None:
         module = self.modules["annotating_by_label"]