style: clean up prose

tests/core/test_click_types.py

@@ -1,4 +1,4 @@
-"""Tests for SubtitleCodecChoice — notably the ``original`` keep-source sentinel that
+"""Tests for SubtitleCodecChoice, notably the ``original`` keep-source sentinel that
 services set via the ``sub_format`` override (must not be rejected as an invalid codec)."""
 
 from __future__ import annotations

tests/core/test_export.py

@@ -1,4 +1,4 @@
-"""Tests for ``dl.write_export`` — the ``--export`` JSON sidecar.
+"""Tests for ``dl.write_export``, the ``--export`` JSON sidecar.
 
 Regression: DRM-free tracks never pass through ``prepare_drm``, so ``write_export``
 must accept ``drm=None`` (and DRM systems without ``to_dict``/``content_keys`` such

tests/core/test_ism_init.py

@@ -61,7 +61,7 @@ VIDEO_HEVC_SDR_CPD = (
 )
 # Real Dolby Vision (dvhe, DoViProfile "stn") CodecPrivateData from a Smooth
 # manifest: NALs arrive SPS,PPS,VPS (VPS last) and the VUI colour triple is
-# Unspecified (2,2,2) — DV is signalled by FourCC only, never by CICP.
+# Unspecified (2,2,2): DV is signalled by FourCC only, never by CICP.
 VIDEO_HEVC_DV_CPD = (
     "00000001420101022000000300B00000030000030096A001E020021C4D9457B91CAF016E0404042800001F480002EE0401F4E1"
     "15EE7E0001312D00002FAF0C80000000014401C1ACBE0EC90000000140010C01FFFF022000000300B00000030000030096"
@@ -295,7 +295,7 @@ def test_ec3_without_dolby_guid_builds_bare_entry():
 
 
 def test_aac_codec_private_data_synthesis_matches_real_manifest():
-    # 48 kHz stereo AAC-LC must produce 0x1190 — the exact ASC real manifests carry.
+    # 48 kHz stereo AAC-LC must produce 0x1190, the exact ASC real manifests carry.
     assert synthesize_aac_codec_private_data("AACL", 48000, 2).hex() == "1190"
 
 

tests/core/test_service_dl_overrides.py

@@ -1,4 +1,4 @@
-"""Tests for ``apply_service_dl_overrides`` — precedence: CLI/env > service dl > global dl > defaults."""
+"""Tests for ``apply_service_dl_overrides``. Precedence: CLI/env > service dl > global dl > defaults."""
 
 from __future__ import annotations
 

tests/core/test_service_repo.py

@@ -246,7 +246,7 @@ def test_changed_services_up_to_date(monkeypatch):
 
 @pytest.mark.parametrize("order", [["a", "b"], ["b", "a"]])
 def test_collision_first_source_wins(tmp_path, order):
-    """Discovery dedupes by tag honoring list order — the FIRST source to define a tag wins,
+    """Discovery dedupes by tag honoring list order: the FIRST source to define a tag wins,
     whether it's a local dir or a repo clone; later duplicates are shadowed."""
     dirs = {}
     for name in ("a", "b"):