import { describe, expect, it } from 'vitest' import { renderStatementPdf } from '../src/lib/statement-pdf' import type { CustomerStatement } from '@zync/types' const statement: CustomerStatement = { customerId: 'customer-1', customerName: 'אקמה בע״מ', from: '2026-01-01', to: '2026-01-31', groups: [{ currency: 'USD', openingBalance: 10, closingBalance: 25, rows: [{ date: '2026-01-15', kind: 'invoice', documentType: 'Invoice', documentNumber: 'INV-1', reference: null, sourceId: 'invoice-1', debit: 15, credit: 0, runningBalance: 25, }], }], aging: { d0_30: 25, d31_60: 0, d61_90: 0, d90plus: 0 }, } describe('renderStatementPdf', () => { const validPdf = new TextEncoder().encode( '%PDF-1.7\n1 0 obj\n<< /Type /Catalog >>\nendobj\nxref\n0 2\n0000000000 65535 f \n0000000009 00000 n \ntrailer\n<< /Root 1 0 R /Size 2 >>\nstartxref\n42\n%%EOF\n', ) it('preserves the Hebrew RTL statement when converting it to PDF', async () => { let request: RequestInit | undefined const pdfFetch = async (_input: RequestInfo | URL, init?: RequestInit) => { request = init return new Response(validPdf, { headers: { 'Content-Type': 'application/pdf' }, }) } const bytes = await renderStatementPdf(statement, pdfFetch) const html = String(request?.body ?? '') expect(bytes).toEqual(validPdf) expect(html).toContain('') expect(html).toContain('אקמה בע״מ') }) it('rejects provider non-2xx responses without exposing the provider body', async () => { const pdfFetch = async () => new Response('provider secret', { status: 503 }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_UPSTREAM_ERROR', upstreamStatus: 503, }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.not.toThrow('provider secret') }) it('rejects a non-PDF content type', async () => { const pdfFetch = async () => new Response(validPdf, { headers: { 'Content-Type': 'text/html; charset=utf-8' }, }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_INVALID_CONTENT_TYPE', }) }) it('rejects HTML that masquerades as a PDF', async () => { const pdfFetch = async () => new Response('provider error', { headers: { 'Content-Type': 'application/pdf' }, }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_INVALID_BYTES', }) }) it('rejects JSON that masquerades as a PDF', async () => { const pdfFetch = async () => new Response('{"error":"provider failure"}', { headers: { 'Content-Type': 'application/pdf' }, }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_INVALID_BYTES', }) }) it('rejects bytes without a PDF header', async () => { const pdfFetch = async () => new Response( new TextEncoder().encode('not-a-pdf\nstartxref\n42\n%%EOF\n'), { headers: { 'Content-Type': 'application/pdf' } }, ) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_INVALID_BYTES', }) }) it('rejects empty provider output', async () => { const pdfFetch = async () => new Response(new Uint8Array(), { headers: { 'Content-Type': 'application/pdf' }, }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_INVALID_BYTES', }) }) it('rejects a truncated PDF without a terminal EOF marker', async () => { const pdfFetch = async () => new Response(validPdf.slice(0, -7), { headers: { 'Content-Type': 'application/pdf' }, }) await expect(renderStatementPdf(statement, pdfFetch)).rejects.toMatchObject({ code: 'STATEMENT_PDF_INVALID_BYTES', }) }) })