package latest
import "testing"
// Trimmed from https://asurascans.com/comics/chronicles-of-the-demon-faction-f886a8af
// fetched 2026-07-26. The first anchor is the "First Chapter" shortcut: it is a
// real chapter link with no "Chapter N" text, and it must not be mistaken for
// the latest just because it parses.
const asuraSeriesFixture = `
Chapter 179 Chapter 181 Chapter 180 Chapter 999 Chapter 0.5
Chapter 294
Chapter 296
Chapter 295
`
// What Cloudflare serves instead of the page when an IP's bot score flips.
const challengeFixture = `Just a moment...
Checking your browser
`
// Trimmed from the server-rendered HTML of
// https://comix.to/title/n8we-dungeons-and-crayons fetched 2026-08-03. comix is
// an SPA: the page ships a JSON state blob rather than a list of chapter
// anchors, and latestChapterUrl is where the newest chapter actually lives.
const comixSeriesFixture = `
{"firstChapterUrl":"/title/n8we-dungeons-and-crayons/5038739-chapter-1","latestChapterUrl":"/title/n8we-dungeons-and-crayons/11139891-chapter-80"},
{""manga","recommended","n8we",1]":{"items":[{"latestChapterUrl":"/title/qqwrm-full-time-awakening/99999999-chapter-999"}]}
`
// The kagane branch is fed by the browser fetcher, so the body is API JSON, not
// HTML. Trimmed from GET /api/v2/series/ on 2026-08-03.
const kaganeAPIFixture = `
{"series_id":"019f84bc-9ba0-7ed9-86f5-8b905ec7c28b","title":"Infinite Decryption",
"series_books":[{"book_id":"a","title":"Episode 1","chapter_no":"1","sort_no":1},
{"book_id":"b","title":"Episode 41","chapter_no":"41","sort_no":41},
{"book_id":"c","title":"Episode 40.5","chapter_no":"40.5","sort_no":40}]}
`
// Trimmed from https://novelfull.com/reverend-insanity.html fetched 2026-08-05.
// The page carries a newest-first "latest chapters" widget above an
// oldest-first paginated list, so the newest anchor is deliberately NOT last —
// only a maximum finds it. The final anchor belongs to another series and must
// be excluded by slug scoping.
const novelfullSeriesFixture = `
Chapter 9999
`
// Trimmed from https://lightnovelworld.net/novel/a-will-eternal/ fetched
// 2026-08-05. Its chapter anchors are absolute and flat — /-chapter-/
// at the site root, not under /novel/. The last anchor is another series'.
const lnwSeriesFixture = `
Chapter 1
Chapter 1317
Chapter 1298
Chapter 9999
`
// Trimmed from https://asurascans.com/comics/chronicles-of-the-demon-faction-00dcbf97 on 2026-08-10.
const asuraCoverFixture = `Chapter 0.5 `,
wantOK: true, wantNum: 0.5, wantLabel: "Chapter 0.5",
},
{
name: "empty body",
site: "asura", seriesURL: asuraURL, body: "",
wantOK: false,
},
{
name: "cloudflare challenge page",
site: "asura", seriesURL: asuraURL, body: challengeFixture,
wantOK: false,
},
{
name: "demonic markup handed to the asura rule",
site: "asura", seriesURL: asuraURL, body: demonicSeriesFixture,
wantOK: false,
},
{
name: "unknown site",
site: "mangadex", seriesURL: "https://example.com/x", body: asuraSeriesFixture,
wantOK: false,
},
{
name: "comix reads latestChapterUrl, scoped to this series",
site: "comix",
seriesURL: "https://comix.to/title/n8we-dungeons-and-crayons",
body: comixSeriesFixture,
wantOK: true, wantNum: 80, wantLabel: "Chapter 80",
},
{
name: "comix yields nothing on a challenge page",
site: "comix",
seriesURL: "https://comix.to/title/n8we-dungeons-and-crayons",
body: challengeFixture,
wantOK: false,
},
{
name: "kagane takes the max chapter_no from API json",
site: "kagane",
seriesURL: "https://kagane.to/series/019f84bc-9ba0-7ed9-86f5-8b905ec7c28b",
body: kaganeAPIFixture,
wantOK: true, wantNum: 41, wantLabel: "Chapter 41",
},
{
name: "kagane yields nothing on a challenge page",
site: "kagane",
seriesURL: "https://kagane.to/series/019f84bc-9ba0-7ed9-86f5-8b905ec7c28b",
body: challengeFixture,
wantOK: false,
},
{
name: "novelfull takes the max and ignores another series",
site: "novelfull",
seriesURL: "https://novelfull.com/reverend-insanity.html",
body: novelfullSeriesFixture,
wantOK: true, wantNum: 2334, wantLabel: "Chapter 2334",
},
{
name: "novelfull yields nothing on a challenge page",
site: "novelfull",
seriesURL: "https://novelfull.com/reverend-insanity.html",
body: challengeFixture,
wantOK: false,
},
{
name: "novelfull with an unparseable series url",
site: "novelfull",
seriesURL: "https://novelfull.com/genre/Fantasy",
body: novelfullSeriesFixture,
wantOK: false,
},
{
name: "lightnovelworld takes the max and ignores another series",
site: "lightnovelworld",
seriesURL: "https://lightnovelworld.net/novel/a-will-eternal/",
body: lnwSeriesFixture,
wantOK: true, wantNum: 1317, wantLabel: "Chapter 1317",
},
{
name: "lightnovelworld tolerates a series url with no trailing slash",
site: "lightnovelworld",
seriesURL: "https://lightnovelworld.net/novel/a-will-eternal",
body: lnwSeriesFixture,
wantOK: true, wantNum: 1317, wantLabel: "Chapter 1317",
},
{
name: "lightnovelworld yields nothing on a challenge page",
site: "lightnovelworld",
seriesURL: "https://lightnovelworld.net/novel/a-will-eternal/",
body: challengeFixture,
wantOK: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, ok := latestChapterFrom(tt.site, tt.seriesURL, tt.body)
if ok != tt.wantOK {
t.Fatalf("ok = %v, want %v (got %+v)", ok, tt.wantOK, got)
}
if !tt.wantOK {
return
}
if got.Num != tt.wantNum {
t.Errorf("Num = %v, want %v", got.Num, tt.wantNum)
}
if got.Label != tt.wantLabel {
t.Errorf("Label = %q, want %q", got.Label, tt.wantLabel)
}
})
}
}