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google-labs-jules[bot]andPR0M3TH3AN
65c26b8c1e
Restores globalThis.fetch after each test in LinkPreviewService test suite to prevent pollution of other tests with mocked implementations. Co-authored-by: PR0M3TH3AN <[email protected]>
95 lines
2.9 KiB
JavaScript
95 lines
2.9 KiB
JavaScript
import { test } from "node:test";
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import assert from "node:assert/strict";
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import { LinkPreviewService } from "../../js/services/linkPreviewService.js";
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import { indexedDB, IDBKeyRange } from "fake-indexeddb";
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import { JSDOM } from "jsdom";
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// Polyfill IndexedDB
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globalThis.indexedDB = indexedDB;
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globalThis.IDBKeyRange = IDBKeyRange;
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// Polyfill DOMParser
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const dom = new JSDOM();
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globalThis.DOMParser = dom.window.DOMParser;
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globalThis.URL = URL;
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test("LinkPreviewService", async (t) => {
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const originalFetch = globalThis.fetch;
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t.afterEach(() => {
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globalThis.fetch = originalFetch;
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});
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const service = new LinkPreviewService({ ttlMs: 1000 });
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await t.test("initializes IndexedDB", async () => {
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const db = await service.init();
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assert.ok(db);
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assert.equal(db.objectStoreNames.contains("previews"), true);
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});
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await t.test("fetches and caches preview", async () => {
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// Mock fetch
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const htmlContent = `
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<html>
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<head>
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<meta property="og:title" content="Test Title" />
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<meta property="og:description" content="Test Description" />
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<meta property="og:image" content="https://example.com/image.png" />
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<meta property="og:site_name" content="Test Site" />
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</head>
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</html>
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`;
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globalThis.fetch = async (url) => {
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if (url === "https://example.com") {
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return {
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ok: true,
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text: async () => htmlContent,
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};
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}
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throw new Error("Network error");
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};
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const preview = await service.getPreview("https://example.com");
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assert.ok(preview);
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assert.equal(preview.title, "Test Title");
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assert.equal(preview.description, "Test Description");
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assert.equal(preview.image, "https://example.com/image.png");
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assert.equal(preview.siteName, "Test Site");
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// Verify cache
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const cached = await service.getCachedPreview("https://example.com");
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assert.deepEqual(cached, preview);
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});
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await t.test("returns null on fetch failure", async () => {
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globalThis.fetch = async () => {
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throw new Error("Network failure");
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};
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const preview = await service.getPreview("https://fail.com");
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assert.equal(preview, null);
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});
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await t.test("respects TTL", async () => {
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// Set a preview that is expired
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const expiredService = new LinkPreviewService({ ttlMs: -1000 });
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// Initialize DB first to ensure we write to the same place
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await expiredService.init();
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await expiredService.setCachedPreview("https://expired.com", { title: "Expired" });
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const cached = await expiredService.getCachedPreview("https://expired.com");
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assert.equal(cached, null);
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});
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await t.test("deletePreview removes from cache", async () => {
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await service.setCachedPreview("https://delete.com", { title: "Delete Me" });
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await service.deletePreview("https://delete.com");
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const cached = await service.getCachedPreview("https://delete.com");
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assert.equal(cached, null);
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});
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});
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