diff --git a/test/integration/eis_billing/payment_status_test.rb b/test/integration/eis_billing/payment_status_test.rb
new file mode 100644
index 000000000..f9e1e1006
--- /dev/null
+++ b/test/integration/eis_billing/payment_status_test.rb
@@ -0,0 +1,31 @@
+require 'test_helper'
+
+class PaymentStatusIntegrationTest < ApplicationIntegrationTest
+  setup do
+    @invoice = invoices(:unpaid)
+    sign_in users(:api_bestnames)
+  end
+
+  def test_update_payment_status
+    payload = {
+      "order_reference" => @invoice.number,
+      "paid_at" => Time.zone.now - 2.minute,
+      "sum" => @invoice.total,
+      "payment_state" => 'settled'
+    }
+
+    p @invoice.payment_orders.count
+    p BankTransaction.count
+
+    assert_difference -> { @invoice.payment_orders.count } do
+      assert_difference -> { BankTransaction.count } do
+        put eis_billing_payment_status_path,  params: payload,
+          headers: { 'HTTP_COOKIE' => 'session=api_bestnames' }
+      end
+    end
+
+    assert_equal @invoice.account_activity.activity_type, "add_credit"
+
+    assert_response :ok
+  end
+end