split download and ffmpeg procces

N_m3u8DL_py/tests/test_api.py

@@ -1,5 +1,6 @@
 from __future__ import annotations
 
+import shutil
 from pathlib import Path
 
 import pytest
@@ -76,6 +77,30 @@ def test_api_download_url_is_one_call_convenience(tmp_path: Path) -> None:
     assert result.files[0].path.read_bytes() == b"one"
 
 
+def test_api_downloads_segments_without_merging_or_ffmpeg(tmp_path: Path) -> None:
+    (tmp_path / "one.ts").write_bytes(b"one")
+    (tmp_path / "two.ts").write_bytes(b"two")
+    manifest = tmp_path / "movie.m3u8"
+    manifest.write_text("#EXTM3U\n#EXTINF:1,\none.ts\n#EXTINF:1,\ntwo.ts\n#EXT-X-ENDLIST\n")
+
+    result = N_m3u8DL().download_segments_url(
+        manifest,
+        DownloadRequest(
+            output_dir=tmp_path / "output",
+            temporary_dir=tmp_path / "temporary",
+            file_name="movie",
+            ffmpeg_path="/not-used-by-download-segments",
+        ),
+    )
+
+    track = result.tracks[0]
+    assert [path.read_bytes() for path in track.segments] == [b"one", b"two"]
+    assert track.directory.is_dir()
+    assert not list((tmp_path / "output").glob("movie.*"))
+    shutil.rmtree(result.temporary_dir.parent)
+    assert not result.temporary_dir.exists()
+
+
 def test_api_downloads_only_explicit_track_id(tmp_path: Path) -> None:
     (tmp_path / "video.ts").write_bytes(b"video")
     (tmp_path / "audio.ts").write_bytes(b"audio")