Import IncludedNotes on invoice extraction

library/src/test/java/org/mustangproject/ZUGFeRD/ZUGFeRDInvoiceImporterTest.java

@@ -0,0 +1,36 @@
+package org.mustangproject.ZUGFeRD;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.InputStream;
+import java.text.ParseException;
+import java.util.List;
+import javax.xml.xpath.XPathExpressionException;
+import org.junit.jupiter.api.Test;
+import org.mustangproject.IncludedNote;
+import org.mustangproject.Invoice;
+import org.mustangproject.SubjectCode;
+
+class ZUGFeRDInvoiceImporterTest {
+
+  @Test
+  void testImportIncludedNotes() throws XPathExpressionException, ParseException {
+    InputStream inputStream = this.getClass()
+        .getResourceAsStream("/EN16931_Einfach.pdf");
+    ZUGFeRDInvoiceImporter importer = new ZUGFeRDInvoiceImporter(inputStream);
+    Invoice invoice = importer.extractInvoice();
+    List<IncludedNote> notesWithSubjectCode = invoice.getNotesWithSubjectCode();
+    assertThat(notesWithSubjectCode).hasSize(2);
+    assertThat(notesWithSubjectCode.get(0).getSubjectCode()).isNull();
+    assertThat(notesWithSubjectCode.get(0).getContent()).isEqualTo("Rechnung gemäß Bestellung vom 01.11.2024.");
+    assertThat(notesWithSubjectCode.get(1).getSubjectCode()).isEqualTo(SubjectCode.REG);
+    assertThat(notesWithSubjectCode.get(1).getContent()).isEqualTo("Lieferant GmbH\t\t\t\t\n"
+        + "Lieferantenstraße 20\t\t\t\t\n"
+        + "80333 München\t\t\t\t\n"
+        + "Deutschland\t\t\t\t\n"
+        + "Geschäftsführer: Hans Muster\n"
+        + "Handelsregisternummer: H A 123");
+
+  }
+
+}