Recorrection GUI step ; LaTeX issues debugging

tests/test_recorrection_file.py

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+import json
+import tempfile
+import unittest
+from pathlib import Path
+
+from copienator import read_json
+from copienator_gui.recorrection import prepare_selection_file
+
+
+class RecorrectionFileTests(unittest.TestCase):
+    def test_examples_are_inactive_and_opening_preserves_selection(self):
+        with tempfile.TemporaryDirectory() as directory:
+            root = Path(directory)
+            path = prepare_selection_file(root)
+            self.assertEqual(read_json(path), [])
+            self.assertIn('// Une copie entière', path.read_text())
+            selection = [["Copie46", ["II)9)"]]]
+            path.write_text(json.dumps(selection))
+            prepare_selection_file(root)
+            self.assertEqual(read_json(path), selection)
+            before = path.read_bytes()
+            prepare_selection_file(root)
+            self.assertEqual(path.read_bytes(), before)
+
+    def test_comments_do_not_affect_strings_or_other_json_files(self):
+        with tempfile.TemporaryDirectory() as directory:
+            root = Path(directory)
+            path = root / "refaire.json"
+            path.write_text('// Example\n[["Copie01", ["a//b"]]]\n')
+            self.assertEqual(read_json(path), [["Copie01", ["a//b"]]])
+            other = root / "correction.json"
+            other.write_text(path.read_text())
+            with self.assertRaises(json.JSONDecodeError):
+                read_json(other)