| 1 | import assert from 'node:assert/strict'; |
| 2 | import test from 'node:test'; |
| 3 | |
| 4 | import { |
| 5 | buildDailySeries, |
| 6 | fetchAllStargazers, |
| 7 | parseLinkHeader, |
| 8 | renderStarHistorySvg, |
| 9 | } from './update-star-history.mjs'; |
| 10 | |
| 11 | test('parseLinkHeader extracts pagination relationships', () => { |
| 12 | assert.deepEqual( |
| 13 | parseLinkHeader( |
| 14 | '<https://api.github.com/example?page=2>; rel="next", <https://api.github.com/example?page=4>; rel="last"', |
| 15 | ), |
| 16 | { |
| 17 | next: 'https://api.github.com/example?page=2', |
| 18 | last: 'https://api.github.com/example?page=4', |
| 19 | }, |
| 20 | ); |
| 21 | }); |
| 22 | |
| 23 | test('fetchAllStargazers follows every page and requests starred_at timestamps', async () => { |
| 24 | const requests = []; |
| 25 | const fakeFetch = async (url, options) => { |
| 26 | requests.push({ url: String(url), headers: options.headers }); |
| 27 | const page = new URL(url).searchParams.get('page'); |
| 28 | const body = |
| 29 | page === '1' |
| 30 | ? [{ starred_at: '2026-07-19T01:00:00Z' }] |
| 31 | : [{ starred_at: '2026-07-20T01:00:00Z' }]; |
| 32 | return new Response(JSON.stringify(body), { |
| 33 | headers: |
| 34 | page === '1' |
| 35 | ? { |
| 36 | link: '<https://api.github.com/repos/example/repo/stargazers?per_page=100&page=2>; rel="next", <https://api.github.com/repos/example/repo/stargazers?per_page=100&page=2>; rel="last"', |
| 37 | } |
| 38 | : {}, |
| 39 | status: 200, |
| 40 | }); |
| 41 | }; |
| 42 | |
| 43 | assert.deepEqual( |
| 44 | await fetchAllStargazers({ |
| 45 | repository: 'example/repo', |
| 46 | token: 'fake-token', |
| 47 | fetchImpl: fakeFetch, |
| 48 | }), |
| 49 | ['2026-07-19T01:00:00Z', '2026-07-20T01:00:00Z'], |
| 50 | ); |
| 51 | assert.equal(requests.length, 2); |
| 52 | assert.equal(requests[0].headers.Accept, 'application/vnd.github.star+json'); |
| 53 | assert.equal(requests[0].headers.Authorization, 'Bearer fake-token'); |
| 54 | }); |
| 55 | |
| 56 | test('fetchAllStargazers does not retry permission failures', async () => { |
| 57 | let requests = 0; |
| 58 | const fakeFetch = async () => { |
| 59 | requests += 1; |
| 60 | return new Response('{"message":"Forbidden"}', { status: 403 }); |
| 61 | }; |
| 62 | |
| 63 | await assert.rejects( |
| 64 | fetchAllStargazers({ |
| 65 | repository: 'example/repo', |
| 66 | token: 'fake-token', |
| 67 | fetchImpl: fakeFetch, |
| 68 | }), |
| 69 | /GitHub API returned 403/, |
| 70 | ); |
| 71 | assert.equal(requests, 1); |
| 72 | }); |
| 73 | |
| 74 | test('buildDailySeries aggregates days and extends the line to the current date', () => { |
| 75 | assert.deepEqual( |
| 76 | buildDailySeries( |
| 77 | [ |
| 78 | '2026-07-19T01:00:00Z', |
| 79 | '2026-07-19T18:00:00Z', |
| 80 | '2026-07-20T01:00:00Z', |
| 81 | ], |
| 82 | new Date('2026-07-21T12:00:00Z'), |
| 83 | ), |
| 84 | [ |
| 85 | { date: '2026-07-19', count: 2 }, |
| 86 | { date: '2026-07-20', count: 3 }, |
| 87 | { date: '2026-07-21', count: 3 }, |
| 88 | ], |
| 89 | ); |
| 90 | }); |
| 91 | |
| 92 | test('renderStarHistorySvg produces stable accessible light and dark charts', () => { |
| 93 | const series = [ |
| 94 | { date: '2026-07-19', count: 1 }, |
| 95 | { date: '2026-07-21', count: 3 }, |
| 96 | ]; |
| 97 | const light = renderStarHistorySvg(series, { repository: 'example/repo', theme: 'light' }); |
| 98 | const dark = renderStarHistorySvg(series, { repository: 'example/repo', theme: 'dark' }); |
| 99 | |
| 100 | assert.match(light, /<title id="title">example\/repo Star History<\/title>/); |
| 101 | assert.match(light, /3 stars/); |
| 102 | assert.match(light, /#ffffff/); |
| 103 | assert.match(dark, /#0d1117/); |
| 104 | assert.doesNotMatch(light, /NaN|undefined/); |
| 105 | }); |
| 106 |