fix: smart chunking, extraction, and process-safety issuesHEADmain

1 files changed, 19 insertions, 0 deletions

diff --git a/app/tests/test_converter.py b/app/tests/test_converter.py
index 9084898..3795fbc 100644
--- a/app/tests/test_converter.py
+++ b/app/tests/test_converter.py
@@ -709,6 +709,25 @@ class PreflightOverwritesTests(unittest.TestCase):
         names = {name for _book, name in planned}
         self.assertEqual(names, {"book_txt_m1_Vivian", "book_epub_m1_Vivian"})
 
+    def test_planned_names_are_unique_across_the_batch(self):
+        # "book.txt" and "book_txt.txt" both resolve to the stem
+        # "book_txt" (the suffix disambiguation's target), which without
+        # a uniqueness pass would make the later book silently overwrite
+        # the earlier one's audiobook.
+        (converter_mod.BOOKS_FOLDER / "book.epub").write_text("x",
+                                                              encoding="utf-8")
+        (converter_mod.BOOKS_FOLDER / "book.txt").write_text("x",
+                                                             encoding="utf-8")
+        (converter_mod.BOOKS_FOLDER / "book_txt.txt").write_text(
+            "x", encoding="utf-8")
+        with patch("builtins.input", side_effect=AssertionError("should not prompt")):
+            _book_files, planned = AudiobookConverter.preflight_overwrites(
+                BACKEND_QWEN, "Vivian", VOICE_MODE_CUSTOM, None, "mp3")
+        names = [name for _book, name in planned]
+        self.assertEqual(len(names), len(set(names)))
+        self.assertEqual(names, ["book_epub_Vivian", "book_txt_Vivian",
+                                 "book_txt_Vivian_2"])
+
 
 class ComputeModelTagTests(unittest.TestCase):
     """compute_model_tag: the sanitized model id used in output names."""