diff --git a/addons/snailmail_account/__init__.py b/addons/snailmail_account/__init__.py
index 35e7c9600c5..d22fb1f7f36 100644
--- a/addons/snailmail_account/__init__.py
+++ b/addons/snailmail_account/__init__.py
@@ -2,3 +2,4 @@
 
 from . import models
 from . import wizard
+from . import tests
diff --git a/addons/snailmail_account/tests/__init__.py b/addons/snailmail_account/tests/__init__.py
new file mode 100644
index 00000000000..b81c3a2d614
--- /dev/null
+++ b/addons/snailmail_account/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_pingen_send
diff --git a/addons/snailmail_account/tests/test_pingen_send.py b/addons/snailmail_account/tests/test_pingen_send.py
new file mode 100644
index 00000000000..ce73f388274
--- /dev/null
+++ b/addons/snailmail_account/tests/test_pingen_send.py
@@ -0,0 +1,96 @@
+
+import requests
+import json
+import base64
+
+from odoo.addons.account.tests.account_test_classes import AccountingTestCase
+from odoo.tests import tagged
+
+@tagged('post_install', '-at_install', '-standard', 'external')
+class TestPingenSend(AccountingTestCase):
+
+    def setUp(self):
+        super(TestPingenSend, self).setUp()
+        self.pingen_url = "https://stage-api.pingen.com/document/upload/token/30fc3947dbea4792eb12548b41ec8117/"
+        self.sample_invoice = self.create_invoice()
+        self.sample_invoice.partner_id.vat = "BE000000000"
+        self.letter = self.env['snailmail.letter'].create({
+            'partner_id': self.sample_invoice.partner_id.id,
+            'model': 'account.invoice',
+            'res_id': self.sample_invoice.id,
+            'user_id': self.env.user.id,
+            'company_id': self.sample_invoice.company_id.id,
+            'report_template': self.env.ref('account.account_invoices').id
+        })
+        self.data = {
+            'data': json.dumps({
+                'speed': 1,
+                'color': 2,
+                'duplex': 0,
+                'send': True,
+            })
+        }
+
+    def create_invoice(self):
+        """ Create a sample invoice """
+        currency = self.env.ref('base.EUR')
+        partner_agrolait = self.env.ref("base.res_partner_2")
+        product = self.env.ref("product.product_product_4")
+
+        account_receivable = self.env['account.account'].create({
+            'code': 'TESTPINGEN1',
+            'name': 'Test Receivable Account',
+            'user_type_id': self.env.ref('account.data_account_type_receivable').id,
+            'reconcile': True
+        })
+        account_income = self.env['account.account'].create({
+            'code': 'TESTPINGEN2',
+            'name': 'Test Account',
+            'user_type_id': self.env.ref('account.data_account_type_direct_costs').id
+        })
+
+        invoice = self.env['account.invoice'].create({
+            'partner_id': partner_agrolait.id,
+            'currency_id': currency.id,
+            'name': 'invoice to client',
+            'account_id': account_receivable.id,
+            'type': 'out_invoice',
+            'date_invoice': '2018-12-11',
+        })
+
+        self.env['account.invoice.line'].create({
+            'product_id': product.id,
+            'quantity': 1,
+            'price_unit': 42,
+            'invoice_id': invoice.id,
+            'name': 'something',
+            'account_id': account_income.id,
+        })
+
+        invoice.action_invoice_open()
+
+        return invoice
+
+    def render_and_send(self, report_name):
+        self.sample_invoice.company_id.external_report_layout_id = self.env.ref('web.' + report_name)
+        self.letter.attachment_id = False
+        attachment_id = self.letter.with_context(force_report_rendering=True)._fetch_attachment()
+
+        files = {
+            'file': ('pingen_test_%s.pdf' % report_name, base64.b64decode(attachment_id.datas), 'application/pdf'),
+        }
+
+        response = requests.post(self.pingen_url, data=self.data, files=files)
+
+        try:
+            response.raise_for_status()
+        except:
+            return False
+
+        return True
+
+    def test_pingen_send_invoice(self):
+        self.assertTrue(self.render_and_send('external_layout_standard'))
+        self.assertTrue(self.render_and_send('external_layout_background'))
+        self.assertTrue(self.render_and_send('external_layout_boxed'))
+        self.assertTrue(self.render_and_send('external_layout_clean'))