Allow Gemini to report insufficient crop, and deal with it

tests/test_label_copy_flags.py

@@ -1,6 +1,4 @@
-import os
 import tempfile
-import tkinter as tk
 import unittest
 from pathlib import Path
 from queue import Queue
@@ -159,29 +157,6 @@ class LabelCopyFlagTests(unittest.TestCase):
         self.assertEqual(copy_errors(self.workspace), {self.pdf.name: 'plotting'})
         self.assertFalse(self.pdf.with_suffix('.json').exists())
 
-    @unittest.skipUnless(os.environ.get('DISPLAY'), 'Tk requires a display')
-    def test_exclamation_key_flags_current_copy_in_real_viewer(self):
-        root = tk.Tk()
-        try:
-            image_queue = Queue()
-            image_queue.put((Image.new('RGB', (100, 100), 'white'),
-                             self.pdf.with_name('Copie01_01.json'),
-                             {'copie': 'Copie01', 'part': 1, 'name': 'Student',
-                              'schema': {'columns_per_file': [1, 1]}}))
-            viewer = plotting.ImageViewer(root, self.workspace, set(), image_queue)
-            root.update()
-            root.focus_force()
-            root.update()
-            root.event_generate('<KeyPress>', keysym='exclam')
-            root.update()
-            self.assertEqual(viewer.skipped_copies, {'Copie01'})
-            self.assertFalse(viewer.is_viewing)
-            self.assertIn(self.pdf.name, copy_errors(self.workspace))
-        finally:
-            for callback in root.tk.splitlist(root.tk.call('after', 'info')):
-                root.after_cancel(callback)
-            root.destroy()
-
     def test_empty_marked_selection_does_not_process_whole_evaluation(self):
         with patch.object(self.workspace.__class__, 'require_files'), \
                 patch.object(gemini_for_labels, 'selected_images') as select: