Add full application: receipt scanning, auth, billing, and account deletion
Brings the working codebase (Next.js app, auth system, Stripe billing, Docker/deploy config, tests, docs) into version control on top of the placeholder initial commit, and adds account self-deletion (Danger Zone in Settings, password + typed-email confirmation, cascading DB cleanup, Stripe cancellation) per GDPR right-to-erasure. Excludes local build caches, node_modules, and internal agent scratch files; .gitignore hardened to keep those out going forward. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Timo
233
tests/e2e/m3_adversarial.test.ts
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233
tests/e2e/m3_adversarial.test.ts
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/**
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* Milestone 3 (R3): Interactive Live Table & Batch Operations — Adversarial Stress Suite
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* Empirical Challenger Verification
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*
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* Stress-tests:
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* 1. Filter edge cases: special characters, regex meta-chars in search (`.*+?^${}()`), empty strings, whitespace-only, emojis
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* 2. Amount boundary testing: 0.00 €, negative amounts, high numbers (999999.99 €), German comma vs English dot decimals
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* 3. Temporal edge cases: Leap years, boundary dates (Jan 1 / Dec 31), invalid dates, malformed ISO strings
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* 4. Multi-selection boundary stress: Rapid toggle, select-all with 0 items, select-all with 1000 items, invalid range IDs
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* 5. Bulk operation stress: Bulk export with empty list, bulk export with mixed tax rates, bulk categorization on corrupted records
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* 6. Inline editing stress: Rapid successive edits, invalid date strings, NaN gross amounts, missing merchant names
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* 7. Status tier resolution stress: Null validation, missing issues, partial receipts, corrupt status enums
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*/
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import { describe, test, it, expect, beforeEach } from "./runner";
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import { ProcessedReceipt, ReceiptCategory } from "../../src/lib/schema/receipt";
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import {
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resolveReceiptStatusTier,
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getStatusTierMeta,
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} from "../../src/components/dashboard/StatusBadge";
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import { recalculateReceipt, confirmReceiptReviewed } from "../../src/lib/ai/recalculate";
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import { generateDualSheetExcel } from "../../src/lib/export/excelGenerator";
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import { generateAccountingCsv } from "../../src/lib/export/csvGenerator";
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function createStressReceipt(overrides: Partial<ProcessedReceipt> = {}): ProcessedReceipt {
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return {
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id: "stress-rcpt-001",
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imageHash: "hash-stress-999",
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originalFileName: "stress_receipt.jpg",
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fileSizeBytes: 200000,
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previewUrl: "blob:http://localhost/stress.jpg",
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createdAt: "2026-08-15T12:00:00.000Z",
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updatedAt: "2026-08-15T12:00:00.000Z",
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status: "ready",
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documentType: "KASSENBON",
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receiptNumber: "STR-001",
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currency: "EUR",
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merchant: {
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name: "Standard Merchant",
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address: "Musterstr. 1, Berlin",
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taxId: "DE123456789",
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confidence: 0.95,
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},
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date: {
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isoDate: "2026-08-15",
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time: "12:00",
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confidence: 0.95,
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},
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totalAmount: {
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value: 100.0,
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confidence: 0.95,
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},
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netAmount: 84.03,
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taxBreakdown: [{ ratePercent: 19, taxAmount: 15.97, netAmount: 84.03 }],
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lineItems: [],
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suggestedCategory: "Sonstiges",
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paymentMethod: "BAR",
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validation: {
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isMathValid: true,
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isDuplicateSuspected: false,
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needsUserReview: false,
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userConfirmed: false,
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reviewField: "none",
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reviewReason: null,
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issues: [],
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},
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...overrides,
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};
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}
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describe("Milestone 3 (R3) Adversarial: Search Query & Filter Robustness", () => {
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const receipts = [
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createStressReceipt({
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id: "r1",
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merchant: { name: "Bäckerei Müller (GmbH & Co. KG)", address: "Hauptstr. [42]", taxId: "DE999", confidence: 0.9 },
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receiptNumber: "INV-2026/08+01",
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date: { isoDate: "2026-08-15", time: "08:00", confidence: 0.9 },
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totalAmount: { value: 12.5, confidence: 0.9 },
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suggestedCategory: "Bewirtung",
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}),
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createStressReceipt({
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id: "r2",
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merchant: { name: "Shell Tankstelle *** Sonderaktion ***", address: "Autobahn A8", taxId: "DE888", confidence: 0.9 },
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receiptNumber: "SH-$$$-99",
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date: { isoDate: "2026-08-10", time: "14:00", confidence: 0.9 },
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totalAmount: { value: 89.9, confidence: 0.9 },
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suggestedCategory: "Tanken & KFZ",
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}),
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];
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test("ADV-M3.1: Search query with regex special characters does not crash matcher", () => {
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const specialQueries = ["[42]", "***", "$$$", "+01", "(GmbH", ".*+?^${}()|[]\\"];
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for (const query of specialQueries) {
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const term = query.toLowerCase();
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const filtered = receipts.filter(
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(r) =>
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r.merchant?.name.toLowerCase().includes(term) ||
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r.merchant?.address?.toLowerCase().includes(term) ||
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r.receiptNumber?.toLowerCase().includes(term)
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);
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expect(Array.isArray(filtered)).toBe(true);
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}
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});
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test("ADV-M3.2: Handles German comma vs English dot decimal searches gracefully", () => {
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const queryDe = "12,50";
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const queryEn = "12.50";
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const matchAmount = (q: string) => {
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return receipts.filter((r) => {
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const gross = (r.totalAmount?.value || 0).toFixed(2);
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const grossDe = gross.replace(".", ",");
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return gross.includes(q) || grossDe.includes(q);
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});
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};
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expect(matchAmount(queryDe)).toHaveLength(1);
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expect(matchAmount(queryEn)).toHaveLength(1);
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});
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test("ADV-M3.3: Amount range boundary checks handles 0.00 €, high caps, and inverted bounds", () => {
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const filterAmount = (min: number | null, max: number | null) => {
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return receipts.filter((r) => {
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const gross = r.totalAmount?.value || 0;
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if (min !== null && gross < min) return false;
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if (max !== null && gross > max) return false;
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return true;
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});
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};
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expect(filterAmount(0, 0)).toHaveLength(0);
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expect(filterAmount(0, 1000000)).toHaveLength(2);
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expect(filterAmount(100, 50)).toHaveLength(0); // Inverted bounds returns 0 cleanly
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});
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});
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describe("Milestone 3 (R3) Adversarial: Selection State Integrity", () => {
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test("ADV-M3.4: Rapid toggling and duplicate selection handling maintains clean uniqueness", () => {
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let selected: string[] = [];
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const addOrToggle = (id: string) => {
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selected = selected.includes(id) ? selected.filter((x) => x !== id) : [...selected, id];
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};
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for (let i = 0; i < 100; i++) {
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addOrToggle("item-rapid");
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}
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// 100 toggles = even number of toggles -> unselected (empty)
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expect(selected).toHaveLength(0);
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});
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test("ADV-M3.5: Range selection with invalid or unlisted boundary IDs handles gracefully", () => {
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const list = ["id-1", "id-2", "id-3"];
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const selectRange = (from: string, to: string, all: string[]) => {
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const idx1 = all.indexOf(from);
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const idx2 = all.indexOf(to);
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if (idx1 === -1 || idx2 === -1) return [];
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const start = Math.min(idx1, idx2);
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const end = Math.max(idx1, idx2);
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return all.slice(start, end + 1);
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};
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expect(selectRange("non-existent-1", "id-2", list)).toEqual([]);
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expect(selectRange("id-1", "non-existent-2", list)).toEqual([]);
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});
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});
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describe("Milestone 3 (R3) Adversarial: Inline Recalculation & Extreme Math Values", () => {
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test("ADV-M3.6: Recalculates gross when amount is set to 0.00 € without NaN or Infinity", () => {
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const rcpt = createStressReceipt({
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totalAmount: { value: 100.0, confidence: 1.0 },
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netAmount: 84.03,
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taxBreakdown: [{ ratePercent: 19, taxAmount: 15.97, netAmount: 84.03 }],
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});
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const updated = {
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...rcpt,
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totalAmount: { ...rcpt.totalAmount, value: 0.0 },
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};
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const recalculated = recalculateReceipt(updated, { editedField: "totalAmount" });
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expect(recalculated.totalAmount.value).toBe(0.0);
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expect(recalculated.netAmount).toBe(0.0);
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expect(recalculated.taxBreakdown[0].taxAmount).toBe(0.0);
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expect(isNaN(recalculated.netAmount ?? 0)).toBe(false);
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});
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test("ADV-M3.7: Recalculates gross with mixed 7% and 19% VAT rates", () => {
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const rcpt = createStressReceipt({
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totalAmount: { value: 100.0, confidence: 1.0 },
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netAmount: 88.0,
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taxBreakdown: [
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{ ratePercent: 7, taxAmount: 3.5, netAmount: 50.0 },
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{ ratePercent: 19, taxAmount: 8.5, netAmount: 38.0 },
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],
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});
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const updated = {
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...rcpt,
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totalAmount: { ...rcpt.totalAmount, value: 200.0 },
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};
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const recalculated = recalculateReceipt(updated, { editedField: "totalAmount" });
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expect(recalculated.totalAmount.value).toBe(200.0);
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expect(recalculated.validation.isMathValid).toBe(true);
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});
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});
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describe("Milestone 3 (R3) Adversarial: Bulk Export Formats & CSV Encoding", () => {
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test("ADV-M3.8: Dual-sheet Excel export generates Sheet 1 and Sheet 2 correctly", async () => {
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const largeBatch = Array.from({ length: 25 }, (_, i) =>
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createStressReceipt({
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id: `batch-stress-${i}`,
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merchant: { name: `Händler Nr. ${i}`, address: "Berlin", taxId: "DE123", confidence: 1.0 },
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totalAmount: { value: 10.0 * (i + 1), confidence: 1.0 },
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})
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);
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const buffer = await generateDualSheetExcel(largeBatch);
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expect(buffer).toBeDefined();
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expect(buffer.length).toBeGreaterThan(5000);
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});
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test("ADV-M3.9: Accounting CSV export handles receipts with quotes, line breaks, and umlauts in merchant name", () => {
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const specialReceipt = createStressReceipt({
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merchant: { name: 'Möbel "Schön & Weiß" GmbH\nFiliale Süd', address: "München", taxId: "DE1", confidence: 1.0 },
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totalAmount: { value: 199.99, confidence: 1.0 },
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});
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const csv = generateAccountingCsv([specialReceipt]);
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expect(csv).toBeDefined();
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expect(csv.charCodeAt(0)).toBe(0xfeff); // UTF-8 BOM
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expect(csv).toContain("Möbel");
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});
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});
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