test: lock Core stream metadata presentation

Author: niakw

engine_v2/tests/stream-presentation.test.mjs

@@ -0,0 +1,76 @@
+import assert from "node:assert/strict";
+import { normalizeStreamCandidate } from "../src/contracts.mjs";
+import {
+  buildBadges,
+  presentStreamCandidate,
+  normalizeSourceType,
+} from "../src/stream-presentation.mjs";
+
+const facts = normalizeStreamCandidate({
+  name: "Purstream",
+  url: "https://media.example/master.m3u8",
+  quality: "4K",
+  language: "VFF",
+  codec: "x265",
+  audio: "DDP 5.1",
+  duration: 169,
+  sourceType: "BluRay",
+  ageRating: "-12",
+}, { providerId: "purstream" });
+
+assert.equal(facts.quality, "2160p");
+assert.equal(facts.language, "VFF");
+assert.equal(facts.codec, "x265");
+assert.equal(facts.audio, "DDP 5.1");
+assert.equal(facts.duration, 169);
+assert.equal(facts.sourceType, "BluRay");
+assert.equal(facts.ageRating, "-12");
+
+const presented = presentStreamCandidate(facts, {
+  title: "Interstellar",
+  year: 2014,
+  runtime: 169,
+  certification: "-12",
+}, { id: "purstream", name: "Purstream" });
+
+assert.equal(presented.title, "Purstream");
+assert.equal(presented.quality, "2160p");
+assert.equal(presented.codec, "HEVC");
+assert.equal(presented.audio, "E-AC3 5.1");
+assert.equal(presented.duration, 169);
+assert.equal(presented.sourceType, "BLU-RAY");
+assert.match(presented.description, /【4K】/);
+assert.match(presented.description, /【BLU-RAY】/);
+assert.match(presented.description, /🌐 VFF/);
+assert.match(presented.description, /🎞 HEVC/);
+assert.match(presented.description, /🔊 E-AC3 5\.1/);
+assert.match(presented.description, /⏱ 2h49/);
+assert.match(presented.description, /🔞 -12/);
+
+const tmdbFallback = presentStreamCandidate({
+  name: "Cineby",
+  url: "https://media.example/unknown.mp4",
+  description: "Unknown",
+}, {
+  title: "Sinners",
+  year: 2025,
+  runtime: 137,
+  certification: "16+",
+}, { name: "Cineby" });
+assert.doesNotMatch(tmdbFallback.description ?? "", /Unknown/i);
+assert.match(tmdbFallback.description, /⏱ 2h17/);
+assert.match(tmdbFallback.description, /🔞 16\+/);
+
+const noInventedBluray = presentStreamCandidate({
+  name: "FrenchStream",
+  url: "https://media.example/1080.mp4",
+  quality: "1080p",
+}, {}, { name: "FrenchStream" });
+assert.match(noInventedBluray.description, /【1080P】/);
+assert.doesNotMatch(noInventedBluray.description, /BLU-RAY/i);
+assert.equal(normalizeSourceType("1080p"), "1080P");
+
+const badges = buildBadges({ quality: "4K", language: "VFQ", codec: "H.264" });
+assert.deepEqual(badges, ["【4K】", "🌐 VFQ", "🎞 H.264"]);
+
+console.log("engine v2 stream presentation tests passed");