corrections to intra community supply, the possibility to set it manually via exemptionreasoncode and another test

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

@@ -212,6 +212,8 @@ public class Product implements IZUGFeRDExportableProduct {
 	public Product setIntraCommunitySupply() {
 		isIntraCommunitySupply = true;
 		setVATPercent(BigDecimal.ZERO);
+		setTaxExemptionReason("Intra-community supply");
+		setTaxCategoryCode("K");
 		return this;
 	}
 

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

@@ -134,11 +134,11 @@ public class VATAmount {
 	}
 
 	public VATAmount add(VATAmount v) {
-		return new VATAmount(basis.add(v.getBasis()), calculated.add(v.getCalculated()), this.categoryCode, this.dueDateTypeCode);
+		return new VATAmount(basis.add(v.getBasis()), calculated.add(v.getCalculated()), this.categoryCode, this.dueDateTypeCode).setVatExemptionReasonText(v.getVatExemptionReasonText());
 	}
 
 	public VATAmount subtract(VATAmount v) {
-		return new VATAmount(basis.subtract(v.getBasis()), calculated.subtract(v.getCalculated()), this.categoryCode, this.dueDateTypeCode);
+		return new VATAmount(basis.subtract(v.getBasis()), calculated.subtract(v.getCalculated()), this.categoryCode, this.dueDateTypeCode).setVatExemptionReasonText(v.getVatExemptionReasonText());
 	}
 
 }

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

@@ -56,6 +56,7 @@ public class ZF2PushTest extends TestCase {
 	final String TARGET_ATTACHMENTSPDF = "./target/testout-ZF2PushAttachments.pdf";
 	final String TARGET_BANKPDF = "./target/testout-ZF2PushBank.pdf";
 	final String TARGET_PUSHEDGE = "./target/testout-ZF2PushEdge.pdf";
+	final String TARGET_INTRACOMMUNITYSUPPLYMANUALPDF = "./target/testout-ZF2PushIntraCommunitySupplyManual.pdf";
 	final String TARGET_INTRACOMMUNITYSUPPLYPDF = "./target/testout-ZF2PushIntraCommunitySupply.pdf";
 	final String TARGET_REVERSECHARGEPDF = "./target/testout-ZF2PushReverseCharge.pdf";
 
@@ -272,7 +273,10 @@ public class ZF2PushTest extends TestCase {
 	}
 
 
-	public void testIntraCommunitySupplyExport() {
+	/***
+	 * you can activate intra community suppliy on item level
+	 */
+	public void testIntraCommunitySupplyItemExport() {
 
 		String orgname = "Test company";
 		String number = "123";
@@ -323,6 +327,68 @@ public class ZF2PushTest extends TestCase {
 		}
 	}
 
+	/**
+	 * or manually, in which case the transaction needs a delivery address outside DE, and the items a 0 tax with reason K and reason code
+	 */
+
+	public void testIntraCommunitySupplyManualExport() {
+
+		String orgname = "Test company";
+		String number = "123";
+		String priceStr = "1.00";
+
+		String taxID = "9990815";
+		BigDecimal price = new BigDecimal(priceStr);
+		try {
+			InputStream SOURCE_PDF = this.getClass().getResourceAsStream("/MustangGnuaccountingBeispielRE-20170509_505blanko.pdf");
+
+			ZUGFeRDExporterFromA1 ze = new ZUGFeRDExporterFromA1();
+			ze.ignorePDFAErrors();
+			ze.load(SOURCE_PDF);
+			ze.setProducer("My Application").setCreator(System.getProperty("user.name")).setZUGFeRDVersion(2);
+
+			ze.setTransaction(new Invoice().setDeliveryAddress(new TradeParty("Franz Müller", "teststr.12", "55232", "Entenhausen", "FR")).setDueDate(new Date()).setIssueDate(new Date()).setDeliveryDate(new Date())
+				.setSender(new TradeParty(orgname, "teststr", "55232", "teststadt", "DE").addTaxID(taxID).addVATID("DE0815"))
+				.setRecipient(new TradeParty("Franz Müller", "teststr.12", "55232", "Entenhausen", "FR").addVATID("DE4711")
+
+					.setContact(new Contact("Franz Müller", "01779999999", "franz@mueller.de", "teststr. 12", "55232", "Entenhausen", "DE")))
+				.setNumber(number)
+				.addItem(new Item(new Product("Testprodukt", "", "C62", new BigDecimal(0)).setTaxExemptionReason("Kein Ausweis der Umsatzsteuer bei innergemeinschaftlichen Lieferungen").setTaxCategoryCode("K"), price, new BigDecimal(1.0)))
+			);
+			String theXML = new String(ze.getProvider().getXML());
+			assertTrue(theXML.contains("<rsm:CrossIndustryInvoice"));
+			ze.export(TARGET_INTRACOMMUNITYSUPPLYMANUALPDF);
+		} catch (IOException e) {
+			fail("IOException should not be raised");
+		}
+		ZUGFeRDInvoiceImporter zii = new ZUGFeRDInvoiceImporter(TARGET_INTRACOMMUNITYSUPPLYMANUALPDF);
+		Invoice i= null;
+		try {
+			i = zii.extractInvoice();
+		} catch (XPathExpressionException e) {
+			throw new RuntimeException(e);
+		} catch (ParseException e) {
+			throw new RuntimeException(e);
+		}
+
+		// now check the contents (like MustangReaderTest)
+		ZUGFeRDImporter zi = new ZUGFeRDImporter(TARGET_INTRACOMMUNITYSUPPLYMANUALPDF);
+
+		assertEquals("EUR", zi.getInvoiceCurrencyCode());
+		assertTrue(zi.getUTF8().contains(taxID));
+
+		// Reading ZUGFeRD
+		assertEquals("1.00", zi.getAmount());
+		assertEquals(orgname, zi.getHolder());
+		assertEquals(number, zi.getForeignReference());
+		try {
+			assertEquals(zi.getVersion(), 2);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+
 	public void testReverseChargeExport() {
 
 		String orgname = "Test company";