| 1 | """回归测试：视频与实况图的最高清源选择逻辑。""" |
| 2 | |
| 3 | from core.downloader_base import BaseDownloader |
| 4 | |
| 5 | |
| 6 | def _build_video_downloader(tmp_path): |
| 7 | from auth import CookieManager |
| 8 | from config import ConfigLoader |
| 9 | from control import QueueManager, RateLimiter, RetryHandler |
| 10 | from core.api_client import DouyinAPIClient |
| 11 | from core.video_downloader import VideoDownloader |
| 12 | from storage import FileManager |
| 13 | |
| 14 | config = ConfigLoader() |
| 15 | config.update(path=str(tmp_path)) |
| 16 | return VideoDownloader( |
| 17 | config, |
| 18 | DouyinAPIClient({}), |
| 19 | FileManager(str(tmp_path)), |
| 20 | CookieManager(str(tmp_path / ".cookies.json")), |
| 21 | database=None, |
| 22 | rate_limiter=RateLimiter(max_per_second=5), |
| 23 | retry_handler=RetryHandler(max_retries=1), |
| 24 | queue_manager=QueueManager(max_workers=1), |
| 25 | ) |
| 26 | |
| 27 | |
| 28 | class TestPickHighestQualityPlayAddr: |
| 29 | def test_empty_input_returns_none(self): |
| 30 | assert BaseDownloader._pick_highest_quality_play_addr({}) is None |
| 31 | assert BaseDownloader._pick_highest_quality_play_addr({"bit_rate": []}) is None |
| 32 | assert BaseDownloader._pick_highest_quality_play_addr({"bit_rate": None}) is None |
| 33 | |
| 34 | def test_selects_highest_bit_rate(self): |
| 35 | video = { |
| 36 | "bit_rate": [ |
| 37 | { |
| 38 | "bit_rate": 500000, |
| 39 | "play_addr": {"url_list": ["https://low.example/video"]}, |
| 40 | }, |
| 41 | { |
| 42 | "bit_rate": 1500000, |
| 43 | "play_addr": {"url_list": ["https://high.example/video"]}, |
| 44 | }, |
| 45 | { |
| 46 | "bit_rate": 900000, |
| 47 | "play_addr": {"url_list": ["https://mid.example/video"]}, |
| 48 | }, |
| 49 | ] |
| 50 | } |
| 51 | best = BaseDownloader._pick_highest_quality_play_addr(video) |
| 52 | assert best is not None |
| 53 | assert best["url_list"] == ["https://high.example/video"] |
| 54 | |
| 55 | def test_tie_breaks_by_width(self): |
| 56 | video = { |
| 57 | "bit_rate": [ |
| 58 | { |
| 59 | "bit_rate": 1000000, |
| 60 | "play_addr": { |
| 61 | "url_list": ["https://narrow.example/video"], |
| 62 | "width": 1080, |
| 63 | }, |
| 64 | }, |
| 65 | { |
| 66 | "bit_rate": 1000000, |
| 67 | "play_addr": { |
| 68 | "url_list": ["https://wider.example/video"], |
| 69 | "width": 1440, |
| 70 | }, |
| 71 | }, |
| 72 | ] |
| 73 | } |
| 74 | best = BaseDownloader._pick_highest_quality_play_addr(video) |
| 75 | assert best is not None |
| 76 | assert best["url_list"] == ["https://wider.example/video"] |
| 77 | |
| 78 | def test_ignores_malformed_entries(self): |
| 79 | video = { |
| 80 | "bit_rate": [ |
| 81 | "not a dict", |
| 82 | {"bit_rate": "invalid"}, |
| 83 | {"bit_rate": 800000}, # no play_addr |
| 84 | { |
| 85 | "bit_rate": 600000, |
| 86 | "play_addr": {"url_list": ["https://valid.example/v"]}, |
| 87 | }, |
| 88 | ] |
| 89 | } |
| 90 | best = BaseDownloader._pick_highest_quality_play_addr(video) |
| 91 | assert best is not None |
| 92 | assert best["url_list"] == ["https://valid.example/v"] |
| 93 | |
| 94 | |
| 95 | def test_collect_image_live_urls_prefers_high_bitrate(tmp_path): |
| 96 | """实况图解析应优先采用 bit_rate 最高的 play_addr。""" |
| 97 | # 用真实的 VideoDownloader 实例化来验证（_collect_image_live_urls 是实例方法）。 |
| 98 | downloader = _build_video_downloader(tmp_path) |
| 99 | |
| 100 | aweme_data = { |
| 101 | "image_post_info": { |
| 102 | "images": [ |
| 103 | { |
| 104 | "video": { |
| 105 | "bit_rate": [ |
| 106 | { |
| 107 | "bit_rate": 500000, |
| 108 | "play_addr": {"url_list": ["https://low.example/live"]}, |
| 109 | }, |
| 110 | { |
| 111 | "bit_rate": 2_000_000, |
| 112 | "play_addr": {"url_list": ["https://high.example/live"]}, |
| 113 | }, |
| 114 | ], |
| 115 | "play_addr": {"url_list": ["https://fallback.example/live"]}, |
| 116 | } |
| 117 | } |
| 118 | ] |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | urls = downloader._collect_image_live_urls(aweme_data) |
| 123 | assert urls == ["https://high.example/live"] |
| 124 | |
| 125 | |
| 126 | def test_note_aweme_without_gallery_assets_falls_back_to_video(tmp_path): |
| 127 | """部分 /note/ 作品返回 aweme_type=68 但媒体落在 video 字段。""" |
| 128 | downloader = _build_video_downloader(tmp_path) |
| 129 | |
| 130 | aweme_data = { |
| 131 | "aweme_id": "7646971177114611826", |
| 132 | "aweme_type": 68, |
| 133 | "video": {"play_addr": {"url_list": ["https://example.com/note-video.mp4"]}}, |
| 134 | } |
| 135 | |
| 136 | assert downloader._detect_media_type(aweme_data) == "video" |
| 137 | |
| 138 | |
| 139 | def test_note_aweme_with_gallery_assets_stays_gallery(tmp_path): |
| 140 | downloader = _build_video_downloader(tmp_path) |
| 141 | |
| 142 | aweme_data = { |
| 143 | "aweme_id": "7646971177114611826", |
| 144 | "aweme_type": 68, |
| 145 | "images": [{"url_list": ["https://example.com/1.jpg"]}], |
| 146 | "video": {"play_addr": {"url_list": ["https://example.com/audio-ish.mp4"]}}, |
| 147 | } |
| 148 | |
| 149 | assert downloader._detect_media_type(aweme_data) == "gallery" |
| 150 | |
| 151 | |
| 152 | def test_build_no_watermark_url_uses_h264_play_addr_variant(tmp_path): |
| 153 | downloader = _build_video_downloader(tmp_path) |
| 154 | |
| 155 | aweme_data = { |
| 156 | "aweme_id": "7646971177114611826", |
| 157 | "video": { |
| 158 | "play_addr_h264": { |
| 159 | "url_list": ["https://v3-web.douyinvod.com/note-h264.mp4"] |
| 160 | } |
| 161 | }, |
| 162 | } |
| 163 | |
| 164 | video_info = downloader._build_no_watermark_url(aweme_data) |
| 165 | assert video_info is not None |
| 166 | assert video_info[0] == "https://v3-web.douyinvod.com/note-h264.mp4" |
| 167 | |
| 168 | |
| 169 | def test_collect_image_live_urls_uses_h264_variant_when_play_addr_missing(tmp_path): |
| 170 | downloader = _build_video_downloader(tmp_path) |
| 171 | |
| 172 | aweme_data = { |
| 173 | "image_post_info": { |
| 174 | "images": [ |
| 175 | { |
| 176 | "video": { |
| 177 | "play_addr_h264": { |
| 178 | "url_list": ["https://v3-web.douyinvod.com/live-h264.mp4"] |
| 179 | } |
| 180 | } |
| 181 | } |
| 182 | ] |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | urls = downloader._collect_image_live_urls(aweme_data) |
| 187 | assert urls == ["https://v3-web.douyinvod.com/live-h264.mp4"] |
| 188 |