add program files

tests/test_ingest_directory.py

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+from __future__ import annotations
+
+from pathlib import Path
+
+from audiobooksorter.cli import _format_dry_run
+from audiobooksorter.ingest import load_library
+from audiobooksorter.sorter import sort_by_series
+
+
+def test_loads_directory_without_metadata_files() -> None:
+    records = load_library(Path("testdata"))
+
+    assert len(records) == 14
+    series_names = {record.series for record in records}
+    assert {"All the Skills", "Battle Mage Farmer", "The Wandering Inn"} <= series_names
+
+    battle_indexes = sorted(
+        record.series_index for record in records if record.series == "Battle Mage Farmer"
+    )
+    assert battle_indexes == [1.0, 2.0, 3.0, 4.0]
+
+
+def test_dry_run_formats_preview() -> None:
+    records = sort_by_series(load_library(Path("testdata")))
+
+    preview = _format_dry_run(records)
+
+    assert "Dry run (no files written)" in preview
+    assert "Seth Ring / Battle Mage Farmer" in preview
+    assert "Seth Ring / Battle Mage Farmer / Book 1" in preview
+    assert "PirateAba / The Wandering Inn" in preview
+    assert "PirateAba / The Wandering Inn / Book 1" in preview