/** * Feed-resolution extraction tests. * * The iTunes Search API returns feedUrl null for shows delisted from Apple * Podcasts. Their public Apple page still embeds the real feed URL in JSON * state — alongside feedUrls of RELATED shows — so extraction must anchor on * the show's adamId rather than grabbing the first feedUrl in the document. */ import { test, expect } from "bun:test"; import { extractFeedUrlFromPage } from "../src/utils/itunes-feed-resolver"; const MAIN_FEED = "https://rss.pdrl.fm/b32227/feeds.megaphone.fm/BVDWV5370667266"; const OTHER_FEED = "https://feeds.megaphone.fm/BVDWV7762869899"; /** Synthetic Apple page: related shows first, main showOffer after. */ const pageWithNoise = `{ "shows":[{"showOffer":{"title":"The Matt Walsh Show","adamId":"2950206264","feedUrl":"${OTHER_FEED}","showType":"episodic"}}], "pageData":{"showOffer":{"title":"The Ben Shapiro Show","adamId":"1047335260","feedUrl":"${MAIN_FEED}","showType":"episodic"}} }`; test("extracts the show's feed anchored on its adamId, ignoring related shows", () => { const feed = extractFeedUrlFromPage( pageWithNoise, "https://podcasts.apple.com/us/podcast/the-ben-shapiro-show/id1047335260", ); expect(feed).toBe(MAIN_FEED); }); test("handles the ?uo=4 suffix Apple appends to directory URLs", () => { const feed = extractFeedUrlFromPage( pageWithNoise, "https://podcasts.apple.com/us/podcast/the-ben-shapiro-show/id1047335260?uo=4", ); expect(feed).toBe(MAIN_FEED); }); test("returns null when the page has no feedUrl for the requested id", () => { const feed = extractFeedUrlFromPage( pageWithNoise, "https://podcasts.apple.com/us/podcast/some-other-show/id9999999999", ); expect(feed).toBeNull(); }); test("finds the feed when the showOffer sits far after the adamId reference", () => { // Apple serves page variants where thousands of chars separate the first // adamId reference from the showOffer block carrying the feedUrl. const variant = `{"adamId":"1047335260","$kind":"ShowPageIntent"}${"x".repeat(6000)}{"showOffer":{"title":"The Ben Shapiro Show","adamId":"1047335260","feedUrl":"${MAIN_FEED}"}}`; const feed = extractFeedUrlFromPage( variant, "https://podcasts.apple.com/us/podcast/the-ben-shapiro-show/id1047335260", ); expect(feed).toBe(MAIN_FEED); }); test("falls back to the first feedUrl when the URL carries no id", () => { const feed = extractFeedUrlFromPage( pageWithNoise, "https://podcasts.apple.com/us/podcast/the-ben-shapiro-show", ); expect(feed).toBe(OTHER_FEED); }); test("returns null when the page contains no feedUrl at all", () => { const feed = extractFeedUrlFromPage( "not found", "https://podcasts.apple.com/us/podcast/the-ben-shapiro-show/id1047335260", ); expect(feed).toBeNull(); });