modest improvement to cropping (safer)

tests/test_splitting_geometry.py

@@ -8,7 +8,10 @@ import numpy as np
 import pymupdf
 from pdf2image import convert_from_path
 
-from copienator.commands.splitting_int import _render_split_outputs
+from copienator.commands.splitting_int import (
+    ANSWER_TOP_PADDING_POINTS,
+    _render_split_outputs,
+)
 
 
 class SplittingGeometryTests(unittest.TestCase):
@@ -60,7 +63,8 @@ class SplittingGeometryTests(unittest.TestCase):
                             else:
                                 coordinates = [("A", 0, 250, 260, 0, 100),
                                                ("_", 0, 711, 721, 0, 100)]
-                                bounds = (bounds[0], max(bounds[1], height // 4),
+                                answer_top = int(height // 4 - ANSWER_TOP_PADDING_POINTS)
+                                bounds = (bounds[0], max(bounds[1], answer_top),
                                           bounds[2], min(bounds[3], height * 3 // 4))
                             _render_split_outputs(source, coordinates, root)
                             self.assert_matches_preview(root / "A.pdf", preview, bounds)
@@ -85,7 +89,7 @@ class SplittingGeometryTests(unittest.TestCase):
             rendered = convert_from_path(root / "A.pdf", dpi=72)
             self.assertEqual(len(rendered), 2)
             for actual, preview, bounds in zip(rendered, previews,
-                                               [(40, 700, 780, 920), (20, 80, 760, 250)]):
+                                               [(40, 688, 780, 920), (20, 80, 760, 250)]):
                 expected = np.asarray(preview.crop(bounds)).astype(float)
                 actual = np.asarray(actual).astype(float)
                 self.assertEqual(actual.shape, expected.shape)