import assert from "node:assert/strict";
import { readFile } from "node:fs/promises";
import { join } from "node:path";
import { describe, it } from "node:test";
import { extractDetailPage } from "../src/detail-page.js";
const fixturePath = join(import.meta.dirname, "fixtures", "product-detail.html");
describe("extractDetailPage", () => {
it("extracts visible product detail fields from sanitized HTML", async () => {
const html = await readFile(fixturePath, "utf8");
const details = extractDetailPage(html, {
asin: "B0TESTLED1",
title: "Search title",
url: "https://www.amazon.com/dp/B0TESTLED1",
specs: [],
bullets: [],
matchedFilters: [],
missingFields: [],
extractionNotes: []
});
assert.equal(details.title, "Bright Daylight LED Bulbs 100W Equivalent, 50 Count");
assert.equal(details.price?.amount, 18.99);
assert.equal(details.delivery?.free, true);
assert.equal(details.availability, "In Stock");
assert.equal(details.seller, "Ships from Amazon.com");
assert.equal(details.bullets.length, 2);
assert.deepEqual(details.specs[0], { name: "Brand", value: "BrightCo" });
assert.equal(details.rating, 4.6);
assert.equal(details.reviewCount, 1234);
assert.equal(details.starBreakdown?.five, 72);
});
it("records missing detail-only fields", () => {
const details = extractDetailPage("Sparse Product
", {
asin: "B0SPARSE01",
title: "Sparse",
url: "https://www.amazon.com/dp/B0SPARSE01",
specs: [],
bullets: [],
matchedFilters: [],
missingFields: [],
extractionNotes: []
});
assert.equal(details.price, undefined);
assert.ok(details.missingFields.includes("price"));
assert.ok(details.missingFields.includes("starBreakdown"));
});
it("drops script-like spec rows and trims availability metadata", () => {
const details = extractDetailPage(`
Messy Product
In Stock {"merchantId":"secretish"}
| Special Feature | (function(P) { tracking(); }) Real feature text |
| A19 Add to Cart logShoppableMetrics("x", true) | Buying Options |
| Wattage | 15 watts |
| Customer Reviews | 4.7 out of 5 stars tracking payload |
`, {
asin: "B0MESSY001",
title: "Messy",
url: "https://www.amazon.com/dp/B0MESSY001",
specs: [],
bullets: [],
matchedFilters: [],
missingFields: [],
extractionNotes: []
});
assert.equal(details.availability, "In Stock");
assert.deepEqual(details.specs, [{ name: "Wattage", value: "15 watts" }]);
});
it("preserves a search-card Prime signal when detail delivery text omits Prime", () => {
const details = extractDetailPage(`
Prime Sofa Bed
FREE delivery Tomorrow. Details
| Product Dimensions | 35"D x 83"W x 31"H |
`, {
asin: "B0PRIME123",
title: "Prime Sofa Bed",
url: "https://www.amazon.com/dp/B0PRIME123",
delivery: { display: "FREE delivery Tomorrow", free: true, prime: true },
specs: [],
bullets: [],
matchedFilters: [],
missingFields: [],
extractionNotes: []
});
assert.equal(details.delivery?.prime, true);
assert.equal(details.delivery?.free, true);
});
it("does not treat Prime in a detail title as Prime delivery", () => {
const details = extractDetailPage(`
Prime Sofa Bed
FREE delivery Tomorrow. Details
`, {
asin: "B0TITLE123",
title: "Prime Sofa Bed",
url: "https://www.amazon.com/dp/B0TITLE123",
specs: [],
bullets: [],
matchedFilters: [],
missingFields: [],
extractionNotes: []
});
assert.equal(details.delivery?.prime, false);
});
});