How to use

generateInvoice

method

in

com.ning.billing.invoice.template.HtmlInvoiceGenerator

@Test(groups = "fast")
public void testGenerateEmptyInvoice() throws Exception {
  final Invoice invoice = Mockito.mock(Invoice.class);
  final String output = g.generateInvoice(createAccount(), invoice, false);
  Assert.assertNotNull(output);
}

@Test(groups = "fast")
public void testGenerateNullInvoice() throws Exception {
  final String output = g.generateInvoice(createAccount(), null, false);
  Assert.assertNull(output);
}

@Test(groups = "fast")
public void testGenerateInvoice() throws Exception {
  final String output = g.generateInvoice(createAccount(), createInvoice(), false);
  Assert.assertNotNull(output);
}

@Override
public String getInvoiceAsHTML(final UUID invoiceId, final TenantContext context) throws AccountApiException, IOException, InvoiceApiException {
  final Invoice invoice = getInvoice(invoiceId, context);
  if (invoice == null) {
    throw new InvoiceApiException(ErrorCode.INVOICE_NOT_FOUND, invoiceId);
  }
  final InternalTenantContext internalContext = internalCallContextFactory.createInternalTenantContext(invoiceId, ObjectType.INVOICE, context);
  final Account account = accountUserApi.getAccountById(invoice.getAccountId(), internalContext);
  // Check if this account has the MANUAL_PAY system tag
  boolean manualPay = false;
  final List<Tag> accountTags = tagApi.getTags(account.getId(), ObjectType.ACCOUNT, internalContext);
  for (final Tag tag : accountTags) {
    if (ControlTagType.MANUAL_PAY.getId().equals(tag.getTagDefinitionId())) {
      manualPay = true;
      break;
    }
  }
  return generator.generateInvoice(account, invoice, manualPay);
}

  htmlBody = generator.generateInvoice(account, invoice, manualPay);
} catch (IOException e) {
  throw new InvoiceApiException(e, ErrorCode.EMAIL_SENDING_FAILED);