feat(core): improve in-memory validation, FatturaPA detection coverage, and published type compatibility

test/test.format-detection.ts

@@ -78,33 +78,35 @@ tap.test('Format Detection - PEPPOL large invoice samples', async () => {
 tap.test('Format Detection - FatturaPA Italian invoice format', async () => {
   const files = await TestFileHelpers.getTestFiles(TestFileCategories.FATTURAPA, '*.xml');
   console.log(`Testing ${files.length} FatturaPA files`);
-  
+
+  if (files.length === 0) {
+    const syntheticFatturaPa = `<?xml version="1.0"?>
+<FatturaElettronica xmlns="http://ivaservizi.agenziaentrate.gov.it/docs/xsd/fatture/v1.2">
+  <FatturaElettronicaHeader />
+</FatturaElettronica>`;
+    const format = FormatDetector.detectFormat(syntheticFatturaPa);
+    expect(format).toEqual(InvoiceFormat.FATTURAPA);
+    console.log('✓ Synthetic FatturaPA XML is detected correctly');
+    return;
+  }
+
   let detectedCount = 0;
   for (const file of files) {
-    try {
-      const xmlBuffer = await TestFileHelpers.loadTestFile(file);
-      const xmlString = xmlBuffer.toString('utf-8');
-      
-      const { result: format, duration } = await PerformanceUtils.measure(
-        'fatturapa-detection',
-        async () => FormatDetector.detectFormat(xmlString)
-      );
-      
-      // FatturaPA detection might not be fully implemented yet
-      if (format === InvoiceFormat.FATTURAPA) {
-        detectedCount++;
-      }
-      
-      console.log(`${format === InvoiceFormat.FATTURAPA ? '✓' : '○'} ${path.basename(file)}: ${format} (${duration.toFixed(2)}ms)`);
-    } catch (error) {
-      console.log(`✗ ${path.basename(file)}: Error - ${error.message}`);
-    }
-  }
-  
-  // Log if FatturaPA detection needs implementation
-  if (detectedCount === 0 && files.length > 0) {
-    console.log('Note: FatturaPA format detection may need implementation');
+    const xmlBuffer = await TestFileHelpers.loadTestFile(file);
+    const xmlString = xmlBuffer.toString('utf-8');
+
+    const { result: format, duration } = await PerformanceUtils.measure(
+      'fatturapa-detection',
+      async () => FormatDetector.detectFormat(xmlString)
+    );
+
+    expect(format).toEqual(InvoiceFormat.FATTURAPA);
+    detectedCount++;
+
+    console.log(`✓ ${path.basename(file)}: ${format} (${duration.toFixed(2)}ms)`);
   }
+
+  expect(detectedCount).toEqual(files.length);
 });
 
 // Test format detection for EN16931 examples
@@ -263,4 +265,4 @@ tap.test('Format Detection - Confidence scoring', async () => {
   // expect(result.confidence).toBeGreaterThan(0.8);
 });
 
-tap.start();
+tap.start();