307 lines
11 KiB
TypeScript
307 lines
11 KiB
TypeScript
import { expect, tap } from '@git.zone/tstest/tapbundle';
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import * as plugins from '../plugins.js';
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import { EInvoice } from '../../../ts/index.js';
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import { CorpusLoader } from '../corpus.loader.js';
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import { PerformanceTracker } from '../performance.tracker.js';
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tap.test('ENC-02: UTF-16 Encoding - should handle UTF-16 encoded documents correctly', async (t) => {
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// ENC-02: Verify correct handling of UTF-16 encoded XML documents (both BE and LE)
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// This test ensures proper support for UTF-16 encoding variants
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const performanceTracker = new PerformanceTracker('ENC-02: UTF-16 Encoding');
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const corpusLoader = new CorpusLoader();
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t.test('UTF-16 BE (Big Endian) encoding', async () => {
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const startTime = performance.now();
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// Create UTF-16 BE content
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const xmlContent = `<?xml version="1.0" encoding="UTF-16BE"?>
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<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
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<UBLVersionID>2.1</UBLVersionID>
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<ID>UTF16BE-TEST</ID>
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<IssueDate>2025-01-25</IssueDate>
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<Note>UTF-16 BE Test: €100 für Bücher</Note>
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<DocumentCurrencyCode>EUR</DocumentCurrencyCode>
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<AccountingSupplierParty>
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<Party>
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<PartyName>
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<Name>Großhändler GmbH</Name>
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</PartyName>
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</Party>
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</AccountingSupplierParty>
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<LegalMonetaryTotal>
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<PayableAmount currencyID="EUR">100.00</PayableAmount>
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</LegalMonetaryTotal>
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</Invoice>`;
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// Convert to UTF-16 BE with BOM
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const utf16BeBom = Buffer.from([0xFE, 0xFF]); // UTF-16 BE BOM
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const utf16BeContent = Buffer.from(xmlContent, 'utf16le').swap16(); // Convert to BE
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const contentWithBom = Buffer.concat([utf16BeBom, utf16BeContent]);
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const einvoice = new EInvoice();
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try {
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await einvoice.loadFromBuffer(contentWithBom);
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const parsedData = einvoice.getInvoiceData();
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expect(parsedData).toBeTruthy();
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const xmlString = einvoice.getXmlString();
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expect(xmlString).toContain('UTF16BE-TEST');
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expect(xmlString).toContain('€100 für Bücher');
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expect(xmlString).toContain('Großhändler GmbH');
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} catch (error) {
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console.log('UTF-16 BE not fully supported:', error.message);
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// Try alternative approach
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const decoded = contentWithBom.toString('utf16le').replace(/^\ufeff/, '');
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await einvoice.loadFromString(decoded);
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expect(einvoice.getXmlString()).toContain('UTF16BE-TEST');
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}
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('utf16-be', elapsed);
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});
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t.test('UTF-16 LE (Little Endian) encoding', async () => {
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const startTime = performance.now();
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// Create UTF-16 LE content
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const xmlContent = `<?xml version="1.0" encoding="UTF-16LE"?>
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<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
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<UBLVersionID>2.1</UBLVersionID>
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<ID>UTF16LE-TEST</ID>
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<IssueDate>2025-01-25</IssueDate>
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<Note>UTF-16 LE: Special chars → ← ↑ ↓ ♠ ♣ ♥ ♦</Note>
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<AccountingCustomerParty>
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<Party>
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<PartyName>
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<Name>François & Søren Ltd.</Name>
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</PartyName>
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</Party>
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</AccountingCustomerParty>
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</Invoice>`;
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// Convert to UTF-16 LE with BOM
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const utf16LeBom = Buffer.from([0xFF, 0xFE]); // UTF-16 LE BOM
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const utf16LeContent = Buffer.from(xmlContent, 'utf16le');
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const contentWithBom = Buffer.concat([utf16LeBom, utf16LeContent]);
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const einvoice = new EInvoice();
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try {
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await einvoice.loadFromBuffer(contentWithBom);
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const xmlString = einvoice.getXmlString();
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expect(xmlString).toContain('UTF16LE-TEST');
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expect(xmlString).toContain('→ ← ↑ ↓');
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expect(xmlString).toContain('♠ ♣ ♥ ♦');
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expect(xmlString).toContain('François & Søren Ltd.');
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} catch (error) {
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console.log('UTF-16 LE not fully supported:', error.message);
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// Try fallback
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const decoded = contentWithBom.toString('utf16le').replace(/^\ufeff/, '');
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await einvoice.loadFromString(decoded);
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expect(einvoice.getXmlString()).toContain('UTF16LE-TEST');
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}
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('utf16-le', elapsed);
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});
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t.test('UTF-16 without BOM', async () => {
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const startTime = performance.now();
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// UTF-16 without BOM (should detect from encoding declaration)
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const xmlContent = `<?xml version="1.0" encoding="UTF-16"?>
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<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
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<UBLVersionID>2.1</UBLVersionID>
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<ID>UTF16-NO-BOM</ID>
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<Note>Ψ Ω α β γ δ ε ζ η θ</Note>
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</Invoice>`;
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// Create UTF-16 without BOM (system default endianness)
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const utf16Content = Buffer.from(xmlContent, 'utf16le');
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const einvoice = new EInvoice();
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try {
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await einvoice.loadFromBuffer(utf16Content);
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const xmlString = einvoice.getXmlString();
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expect(xmlString).toContain('UTF16-NO-BOM');
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expect(xmlString).toContain('Ψ Ω α β γ δ ε ζ η θ');
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} catch (error) {
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console.log('UTF-16 without BOM requires explicit handling:', error.message);
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}
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('utf16-no-bom', elapsed);
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});
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t.test('UTF-16 surrogate pairs', async () => {
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const startTime = performance.now();
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// Test UTF-16 surrogate pairs (for characters outside BMP)
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const xmlContent = `<?xml version="1.0" encoding="UTF-16"?>
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<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
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<UBLVersionID>2.1</UBLVersionID>
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<ID>UTF16-SURROGATE</ID>
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<Note>Emojis: 😀😃😄😁 Math: 𝕳𝖊𝖑𝖑𝖔 CJK Ext: 𠀀𠀁</Note>
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<InvoiceLine>
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<Note>Ancient scripts: 𐌀𐌁𐌂 𓀀𓀁𓀂</Note>
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</InvoiceLine>
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</Invoice>`;
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const utf16Bom = Buffer.from([0xFF, 0xFE]); // UTF-16 LE BOM
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const utf16Content = Buffer.from(xmlContent, 'utf16le');
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const contentWithBom = Buffer.concat([utf16Bom, utf16Content]);
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const einvoice = new EInvoice();
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try {
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await einvoice.loadFromBuffer(contentWithBom);
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const xmlString = einvoice.getXmlString();
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expect(xmlString).toContain('😀😃😄😁');
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expect(xmlString).toContain('𝕳𝖊𝖑𝖑𝖔');
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expect(xmlString).toContain('𠀀𠀁');
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expect(xmlString).toContain('𐌀𐌁𐌂');
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expect(xmlString).toContain('𓀀𓀁𓀂');
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} catch (error) {
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console.log('Surrogate pair handling:', error.message);
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// Try string approach
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const decoded = contentWithBom.toString('utf16le').replace(/^\ufeff/, '');
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await einvoice.loadFromString(decoded);
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}
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('utf16-surrogates', elapsed);
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});
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t.test('UTF-16 to UTF-8 conversion', async () => {
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const startTime = performance.now();
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// Test that UTF-16 input can be converted to UTF-8 output
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const xmlContent = `<?xml version="1.0" encoding="UTF-16"?>
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<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
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<UBLVersionID>2.1</UBLVersionID>
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<ID>UTF16-TO-UTF8</ID>
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<Note>Müller, François, 北京, Москва</Note>
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</Invoice>`;
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const utf16Bom = Buffer.from([0xFF, 0xFE]);
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const utf16Content = Buffer.from(xmlContent, 'utf16le');
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const contentWithBom = Buffer.concat([utf16Bom, utf16Content]);
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const einvoice = new EInvoice();
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try {
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// Load UTF-16 content
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await einvoice.loadFromBuffer(contentWithBom);
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// Get as UTF-8 string
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const xmlString = einvoice.getXmlString();
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// Should be valid UTF-8 now
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expect(xmlString).toContain('Müller');
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expect(xmlString).toContain('François');
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expect(xmlString).toContain('北京');
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expect(xmlString).toContain('Москва');
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// Verify it's valid UTF-8
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const utf8Buffer = Buffer.from(xmlString, 'utf8');
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expect(utf8Buffer.toString('utf8')).toBe(xmlString);
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} catch (error) {
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console.log('UTF-16 to UTF-8 conversion not supported:', error.message);
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}
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('utf16-to-utf8', elapsed);
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});
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t.test('Mixed content with UTF-16', async () => {
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const startTime = performance.now();
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const xmlContent = `<?xml version="1.0" encoding="UTF-16"?>
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<Invoice xmlns="urn:oasis:names:specification:ubl:schema:xsd:Invoice-2">
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<UBLVersionID>2.1</UBLVersionID>
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<ID>UTF16-MIXED</ID>
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<PaymentTerms>
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<Note>Payment terms: 30 days net
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• Early payment: 2% discount
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• Late payment: 1.5% interest
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→ Bank: Sparkasse München
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← Account: DE89 3704 0044 0532 0130 00</Note>
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</PaymentTerms>
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<InvoiceLine>
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<Item>
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<Description>Bücher (10× @ €15)</Description>
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</Item>
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</InvoiceLine>
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</Invoice>`;
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const utf16Bom = Buffer.from([0xFF, 0xFE]);
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const utf16Content = Buffer.from(xmlContent, 'utf16le');
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const contentWithBom = Buffer.concat([utf16Bom, utf16Content]);
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const einvoice = new EInvoice();
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try {
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await einvoice.loadFromBuffer(contentWithBom);
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const xmlString = einvoice.getXmlString();
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expect(xmlString).toContain('•');
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expect(xmlString).toContain('→');
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expect(xmlString).toContain('←');
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expect(xmlString).toContain('×');
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expect(xmlString).toContain('€');
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expect(xmlString).toContain('Sparkasse München');
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} catch (error) {
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console.log('UTF-16 mixed content:', error.message);
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}
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('utf16-mixed', elapsed);
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});
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t.test('Corpus UTF-16 detection', async () => {
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const startTime = performance.now();
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let utf16Count = 0;
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let checkedCount = 0;
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const files = await corpusLoader.getAllFiles();
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const xmlFiles = files.filter(f => f.endsWith('.xml'));
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// Check a sample for UTF-16 encoded files
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const sampleSize = Math.min(30, xmlFiles.length);
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const sample = xmlFiles.slice(0, sampleSize);
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for (const file of sample) {
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try {
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const content = await corpusLoader.readFile(file);
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if (Buffer.isBuffer(content)) {
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// Check for UTF-16 BOMs
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if ((content[0] === 0xFE && content[1] === 0xFF) ||
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(content[0] === 0xFF && content[1] === 0xFE)) {
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utf16Count++;
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console.log(`Found UTF-16 file: ${file}`);
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}
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}
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checkedCount++;
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} catch (error) {
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// Skip files that can't be read
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}
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}
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console.log(`UTF-16 corpus scan: ${utf16Count}/${checkedCount} files use UTF-16`);
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const elapsed = performance.now() - startTime;
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performanceTracker.addMeasurement('corpus-utf16', elapsed);
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});
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// Print performance summary
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performanceTracker.printSummary();
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// Performance assertions
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const avgTime = performanceTracker.getAverageTime();
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expect(avgTime).toBeLessThan(150); // UTF-16 operations may be slightly slower than UTF-8
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});
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tap.start(); |