Method test_batch_size_one

tests/extraction/test_runner.py:1088–1092

batch_size=1 gives each file its own batch.

(self)

        self.assertEqual(len(batches), 1)

    def test_batch_size_one(self):
        """batch_size=1 gives each file its own batch."""
        items = self._make_items([1, 2, 1])
        batches = group_work_items(items, batch_size=1)
        self.assertEqual(len(batches), 3)

    def test_exact_boundary(self):
        """Batch boundary falls exactly between files."""