84 lines
2.2 KiB
TypeScript
84 lines
2.2 KiB
TypeScript
import assert from "node:assert/strict";
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import { describe, it } from "node:test";
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import {
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extractUnitCount,
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parseMoney,
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parseRating,
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parseReviewCount,
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parseStarBreakdown,
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parseUnitPrice
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} from "../src/parsers.js";
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describe("parsers", () => {
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it("parses USD money", () => {
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assert.deepEqual(parseMoney("$19.99"), { amount: 19.99, currency: "USD", display: "$19.99" });
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});
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it("parses rating text", () => {
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assert.equal(parseRating("4.6 out of 5 stars"), 4.6);
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});
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it("parses review count text", () => {
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assert.equal(parseReviewCount("1,234 ratings"), 1234);
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});
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it("parses visible star histogram percentages", () => {
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assert.deepEqual(parseStarBreakdown("5 star 72% 4 star 15% 3 star 7% 2 star 3% 1 star 3%"), {
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five: 72,
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four: 15,
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three: 7,
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two: 3,
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one: 3,
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basis: "percent"
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});
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});
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it("extracts high-confidence unit counts", () => {
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assert.deepEqual(extractUnitCount("LED bulbs, 100 Count, daylight"), {
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count: 100,
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confidence: "high",
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source: "100 Count"
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});
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assert.deepEqual(extractUnitCount("Pack of 6 USB-C cables"), {
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count: 6,
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confidence: "high",
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source: "Pack of 6"
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});
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});
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it("distinguishes lower-confidence unit count phrases", () => {
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assert.deepEqual(extractUnitCount("Set of 8 replacement filters"), {
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count: 8,
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confidence: "medium",
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source: "Set of 8"
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});
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assert.deepEqual(extractUnitCount("6 bulbs soft white"), {
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count: 6,
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confidence: "low",
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source: "6 bulbs"
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});
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});
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it("parses visible unit prices", () => {
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assert.deepEqual(parseUnitPrice("$0.33/Count"), {
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amount: 0.33,
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currency: "USD",
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display: "$0.33/Count"
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});
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});
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it("prefers the unit price when product price appears first", () => {
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assert.deepEqual(parseUnitPrice("$9.99 ($5.00$5.00/count)"), {
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amount: 5,
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currency: "USD",
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display: "$5.00/count"
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});
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});
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it("parses whole-dollar and one-decimal prices", () => {
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assert.deepEqual(parseMoney("$20"), { amount: 20, currency: "USD", display: "$20" });
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assert.deepEqual(parseMoney("$19.9"), { amount: 19.9, currency: "USD", display: "$19.9" });
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});
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});
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