Add ability to mark an Invoice as a test invoice.

library/src/main/java/org/mustangproject/Invoice.java

@@ -39,6 +39,7 @@ import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
 @JsonInclude(JsonInclude.Include.NON_EMPTY)
 public class Invoice implements IExportableTransaction {
 
+	protected boolean testIndicator;
 	protected String documentName = null, documentCode = null, number = null, ownOrganisationFullPlaintextInfo = null, referenceNumber = null, shipToOrganisationID = null, shipToOrganisationName = null, shipToStreet = null, shipToZIP = null, shipToLocation = null, shipToCountry = null, buyerOrderReferencedDocumentID = null, buyerOrderReferencedDocumentIssueDateTime = null, ownForeignOrganisationID = null, ownOrganisationName = null, currency = null, paymentTermDescription = null;
 	protected Date issueDate = null, dueDate = null, deliveryDate = null;
 	protected TradeParty sender = null, recipient = null, deliveryAddress = null, payee = null, invoicer = null, invoicee = null;
@@ -82,6 +83,16 @@ public class Invoice implements IExportableTransaction {
 		setCurrency("EUR");
 	}
 
+	@Override
+	public boolean getTestIndicator() {
+		return testIndicator;
+	}
+
+	public Invoice setTestIndicator() {
+		this.testIndicator = true;
+		return this;
+	}
+
 	@Override
 	public String getDocumentName() {
 		return documentName;

library/src/main/java/org/mustangproject/ZUGFeRD/CustomXMLProvider.java

@@ -49,12 +49,6 @@ public class CustomXMLProvider implements IXMLProvider {
 
 	}
 
-	@Override
-	public void setTest() {
-		// TODO Auto-generated method stub
-
-	}
-
 	@Override
 	public Profile getProfile() {
 		return profile;

library/src/main/java/org/mustangproject/ZUGFeRD/IExportableTransaction.java

@@ -38,7 +38,6 @@ import com.fasterxml.jackson.annotation.JsonIgnore;
 import org.mustangproject.FileAttachment;
 import org.mustangproject.IncludedNote;
 import org.mustangproject.ReferencedDocument;
-import org.mustangproject.TradeParty;
 import org.mustangproject.ZUGFeRD.model.DocumentCodeTypeConstants;
 
 /***
@@ -49,6 +48,11 @@ import org.mustangproject.ZUGFeRD.model.DocumentCodeTypeConstants;
  */
 public interface IExportableTransaction {
 
+	@JsonIgnore
+	default boolean getTestIndicator() {
+		return false;
+	}
+
 	/**
 	 * appears in /rsm:CrossIndustryDocument/rsm:HeaderExchangedDocument/ram:Name
 	 *

library/src/main/java/org/mustangproject/ZUGFeRD/IXMLProvider.java

@@ -22,13 +22,9 @@ public interface IXMLProvider {
 
 	public byte[] getXML();
 
-	public void setTest();
-
 	public void generateXML(IExportableTransaction trans);
 
 	public void setProfile(Profile p);
 
 	public Profile getProfile();
-
-
 }

library/src/main/java/org/mustangproject/ZUGFeRD/UBLDAPullProvider.java

@@ -136,11 +136,6 @@ public class UBLDAPullProvider implements IXMLProvider {
 
 	}
 
-	@Override
-	public void setTest() {
-
-	}
-
 	@Override
 	public void setProfile(Profile p) {
 		profile = p;
@@ -150,5 +145,4 @@ public class UBLDAPullProvider implements IXMLProvider {
 	public Profile getProfile() {
 		return profile;
 	}
-
 }

library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD1PullProvider.java

@@ -49,14 +49,6 @@ public class ZUGFeRD1PullProvider extends ZUGFeRD2PullProvider {
 	private String paymentTermsDescription;
 	protected Profile profile = Profiles.getByName("COMFORT", 1);
 
-
-	/**
-	 * enables the flag to indicate a test invoice in the XML structure
-	 */
-	@Override
-	public void setTest() {
-	}
-
 	@Override
   protected String vatFormat(BigDecimal value) {
 		return XMLTools.nDigitFormat(value, 2);

library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java

@@ -35,7 +35,6 @@ import java.util.Date;
 import java.util.List;
 import java.util.Map.Entry;
 import java.util.Optional;
-import java.util.Set;
 import java.util.stream.Collectors;
 
 import org.dom4j.Document;
@@ -61,14 +60,6 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 	private String paymentTermsDescription;
 	protected Profile profile = Profiles.getByName("EN16931");
 
-
-	/**
-	 * enables the flag to indicate a test invoice in the XML structure
-	 */
-	@Override
-	public void setTest() {
-	}
-
 	protected String vatFormat(BigDecimal value) {
 		return XMLTools.nDigitFormat(value, 2);
 	}
@@ -384,9 +375,10 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 			+ " xmlns:qdt=\"urn:un:unece:uncefact:data:standard:QualifiedDataType:100\">"
 			+ "<!-- generated by: mustangproject.org v" + ZUGFeRD2PullProvider.class.getPackage().getImplementationVersion() + "-->"
 			+ "<rsm:ExchangedDocumentContext>\n";
-		// + "
+
-		// <ram:TestIndicator><udt:Indicator>"+testBooleanStr+"</udt:Indicator></ram:TestIndicator>"
+		if (trans.getTestIndicator()) {
-		//
+			xml += "<ram:TestIndicator><udt:Indicator>" + trans.getTestIndicator() + "</udt:Indicator></ram:TestIndicator>";
+		}
 
 		if (getProfile() == Profiles.getByName("XRechnung")) {
 			xml += "<ram:BusinessProcessSpecifiedDocumentContextParameter>\n"

library/src/test/java/org/mustangproject/ZUGFeRD/ZF2PushTest.java

@@ -600,7 +600,7 @@ public class ZF2PushTest extends TestCase {
 				ReferencedDocument dr1=new ReferencedDocument("90-kl-98798-C", sdf.parse("2025-10-12"));
 				ReferencedDocument dr2=new ReferencedDocument("90-kl-98798-C1", sdf.parse("2025-10-13"));
 				dr2.setReferenceTypeCode("AAG");
-				ze.setTransaction(new Invoice().setCurrency("CHF").addNote("document level 1/2").addNote("document level 2/2").setDueDate(new Date()).setIssueDate(new Date()).setDeliveryDate(new Date()).setPaymentReference("Verwendungszweck").setDocumentName("Rechnung")
+				ze.setTransaction(new Invoice().setTestIndicator().setCurrency("CHF").addNote("document level 1/2").addNote("document level 2/2").setDueDate(new Date()).setIssueDate(new Date()).setDeliveryDate(new Date()).setPaymentReference("Verwendungszweck").setDocumentName("Rechnung")
 					.setSellerOrderReferencedDocumentID("9384").setBuyerOrderReferencedDocumentID("28934")
 					.setDetailedDeliveryPeriod(new SimpleDateFormat("yyyyMMdd").parse(occurrenceFrom), new SimpleDateFormat("yyyyMMdd").parse(occurrenceTo))
 					.setSender(new TradeParty(orgname, "teststr", "55232", "teststadt", "DE").addTaxID(taxID).setEmail("sender@test.org").setID(orgID).addVATID("DE0815"))
@@ -630,6 +630,7 @@ public class ZF2PushTest extends TestCase {
 
 			String theXML = new String(ze.getProvider().getXML(), StandardCharsets.UTF_8);
 			assertTrue(theXML.contains("<rsm:CrossIndustryInvoice"));
+			assertTrue(theXML.contains("<ram:TestIndicator"));
 			ze.export(TARGET_PUSHEDGE);
 		} catch (IOException e) {
 			fail("IOException should not be raised");