wip: estado de trabajo pendiente antes de la vista grid (suite 230 verde)

tests/test_config.py

@@ -0,0 +1,75 @@
+"""Tests for the YAML config loader.
+
+Focuses on the ``languages`` and ``prefer_manual`` fields, including the
+legacy/compat behaviour.  Network-free, DB-free.
+"""
+from __future__ import annotations
+
+import textwrap
+
+import pytest
+
+from yt_scraper.config import load_config, parse_languages
+
+
+def _write_config(tmp_path, body: str) -> str:
+    p = tmp_path / "config.yaml"
+    p.write_text(textwrap.dedent(body), encoding="utf-8")
+    return str(p)
+
+
+def test_load_legacy_languages_list(tmp_path) -> None:
+    p = _write_config(tmp_path, """
+        channel_url: "https://example.com/@x/videos"
+        languages: ["es", "en"]
+        prefer_manual: true
+    """)
+    cfg = load_config(p)
+    assert cfg.languages == {"es": "manual", "en": "manual"}
+
+
+def test_load_legacy_languages_list_with_prefer_manual_false(tmp_path) -> None:
+    p = _write_config(tmp_path, """
+        languages: ["es", "en"]
+        prefer_manual: false
+    """)
+    cfg = load_config(p)
+    assert cfg.languages == {"es": "auto", "en": "auto"}
+
+
+def test_load_new_dict_languages(tmp_path) -> None:
+    p = _write_config(tmp_path, """
+        languages:
+          en: manual
+          es: auto
+          pt: any
+        prefer_manual: false
+    """)
+    cfg = load_config(p)
+    assert cfg.languages == {"en": "manual", "es": "auto", "pt": "any"}
+    # prefer_manual remains accessible for fallback on `"any"` entries
+    assert cfg.prefer_manual is False
+
+
+def test_load_unknown_mode_normalises_to_any(tmp_path) -> None:
+    p = _write_config(tmp_path, """
+        languages:
+          en: garbage
+    """)
+    cfg = load_config(p)
+    assert cfg.languages == {"en": "any"}
+
+
+def test_load_missing_languages_defaults_to_any_not_manual_only(tmp_path) -> None:
+    """The default must fall back to auto captions.
+
+    A manual-only default silently produces zero transcripts on the many
+    channels that publish only auto-generated captions, and records them as
+    `no_subtitles` — a terminal status that hides a purely configural failure.
+    """
+    p = _write_config(tmp_path, """
+        channel_url: "https://example.com/@x/videos"
+    """)
+    cfg = load_config(p)
+    assert "es" in cfg.languages and "en" in cfg.languages
+    assert cfg.languages["es"] == "any"