add a usnit test for https://github.com/ZUGFeRD/mustangproject/pull/292

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

@@ -44,9 +44,6 @@ public class Invoice implements IExportableTransaction {
 
 	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, invoiceReferencedDocumentID = null, buyerOrderReferencedDocumentIssueDateTime = null, ownForeignOrganisationID = null, ownOrganisationName = null, currency = null, paymentTermDescription = null;
 	protected Date issueDate = null, dueDate = null, deliveryDate = null;
-	protected BigDecimal totalPrepaidAmount = null;
-	protected BigDecimal grandTotalAmount = null;
-	protected BigDecimal duePayableAmount = null;
 	protected TradeParty sender = null, recipient = null, deliveryAddress = null;
 	@JsonDeserialize(contentAs=Item.class)
 	protected ArrayList<IZUGFeRDExportableItem> ZFItems = null;
@@ -431,34 +428,6 @@ public class Invoice implements IExportableTransaction {
 		return this;
 	}
 
-	@Override
-	public BigDecimal getTotalPrepaidAmount() {
-		return totalPrepaidAmount;
-	}
-
-	public Invoice setTotalPrepaidAmount(BigDecimal totalPrepaidAmount) {
-		this.totalPrepaidAmount = totalPrepaidAmount;
-		return this;
-	}
-
-	public BigDecimal getGrandTotalAmount() {
-		return grandTotalAmount;
-	}
-
-	public Invoice setGrandTotalAmount(BigDecimal grandTotalAmount) {
-		this.grandTotalAmount = grandTotalAmount;
-		return this;
-	}
-
-	public BigDecimal getDuePayableAmount() {
-		return duePayableAmount;
-	}
-
-	public Invoice setDuePayableAmount(BigDecimal duePayableAmount) {
-		this.duePayableAmount = duePayableAmount;
-		return this;
-	}
-
 	@Override
 	public IZUGFeRDExportableTradeParty getSender() {
 		return sender;

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

@@ -73,7 +73,7 @@ public class ZUGFeRDInvoiceImporter extends ZUGFeRDImporter {
 
 		xpr = xpath.compile("//*[local-name()=\"BuyerTradeParty\"]");
 		NodeList BuyerNodes = (NodeList) xpr.evaluate(getDocument(), XPathConstants.NODESET);
-		xpr = xpath.compile("//*[local-name()=\"ExchangedDocument\"]");
+		xpr = xpath.compile("//*[local-name()=\"ExchangedDocument\"]|//*[local-name()=\"HeaderExchangedDocument\"]");
 		NodeList ExchangedDocumentNodes = (NodeList) xpr.evaluate(getDocument(), XPathConstants.NODESET);
 
 		xpr = xpath.compile("//*[local-name()=\"GrandTotalAmount\"]");
@@ -147,7 +147,7 @@ public class ZUGFeRDInvoiceImporter extends ZUGFeRDImporter {
 			}
 		}
 
-		xpr = xpath.compile("//*[local-name()=\"ApplicableHeaderTradeSettlement\"]");
+		xpr = xpath.compile("//*[local-name()=\"ApplicableHeaderTradeSettlement\"]|//*[local-name()=\"ApplicableSupplyChainTradeSettlement\"]");
 		NodeList headerTradeSettlementNodes = (NodeList) xpr.evaluate(getDocument(), XPathConstants.NODESET);
 
 		for (int i = 0; i < headerTradeSettlementNodes.getLength(); i++) {
@@ -419,9 +419,6 @@ public class ZUGFeRDInvoiceImporter extends ZUGFeRDImporter {
 
 			TransactionCalculator tc = new TransactionCalculator(zpp);
 			String expectedStringTotalGross = tc.getGrandTotal().toPlainString();
-			zpp.setGrandTotalAmount(tc.getGrandTotal());
-			zpp.setTotalPrepaidAmount(tc.getTotalPrepaid());
-			zpp.setDuePayableAmount(tc.getGrandTotal().add(tc.getTotalPrepaid().negate()));
 			EStandard whichType;
 			try {
 				whichType = getStandard();

library/src/test/java/org/mustangproject/ZUGFeRD/ZF2ZInvoiceImporterTest.java

@@ -95,6 +95,53 @@ public class ZF2ZInvoiceImporterTest extends ResourceCase  {
 
 
 	}
+	public void testZF1Import() {
+
+		ZUGFeRDInvoiceImporter zii=new ZUGFeRDInvoiceImporter("./target/testout-MustangGnuaccountingBeispielRE-20171118_506zf1.pdf");
+
+		boolean hasExceptions=false;
+		Invoice invoice=null;
+		try {
+			invoice=zii.extractInvoice();
+		} catch (XPathExpressionException | ParseException e) {
+			hasExceptions=true;
+		}
+		assertFalse(hasExceptions);
+		// Reading ZUGFeRD
+		assertEquals("Bei Spiel GmbH", invoice.getOwnOrganisationName());
+		assertEquals(3, invoice.getZFItems().length);
+		assertEquals("400.0000", invoice.getZFItems()[1].getQuantity().toString());
+
+		assertEquals("160.0000", invoice.getZFItems()[0].getPrice().toString());
+		assertEquals("Hot air „heiße Luft“ (litres)", invoice.getZFItems()[2].getProduct().getName());
+		assertEquals("LTR", invoice.getZFItems()[2].getProduct().getUnit());
+		assertEquals("7.00", invoice.getZFItems()[0].getProduct().getVATPercent().toString());
+		assertEquals("RE-20190610/507", invoice.getNumber());
+
+		SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");
+		assertEquals("2019-06-10",sdf.format(invoice.getIssueDate()));
+		assertEquals("2019-07-01",sdf.format(invoice.getDueDate()));
+
+		assertEquals("street", invoice.getRecipient().getStreet());
+		assertEquals("zip", invoice.getRecipient().getZIP());
+		assertEquals("DE", invoice.getRecipient().getCountry());
+		assertEquals("city", invoice.getRecipient().getLocation());
+
+		assertEquals("street", invoice.getSender().getStreet());
+		assertEquals("zip", invoice.getSender().getZIP());
+		assertEquals("DE", invoice.getSender().getCountry());
+		assertEquals("city", invoice.getSender().getLocation());
+
+		TransactionCalculator tc=new TransactionCalculator(invoice);
+		assertEquals(new BigDecimal("571.04"),tc.getGrandTotal());
+
+
+		// name street location zip country, contact name phone email, total amount
+
+
+
+	}
+
 	public void testItemAllowancesChargesImport() {
 
 		ZUGFeRDInvoiceImporter zii=new ZUGFeRDInvoiceImporter("./target/testout-ZF2PushItemChargesAllowances.pdf");