[FIX] membership_prorate: fix for calculating quantity for prorate pr…

…oducts

Changes in test script for prorate_variable_period

membership_prorate/models/account_move_line.py

@@ -31,7 +31,7 @@ def _prepare_invoice_line_prorate_vals(self, invoice_line):
         if date_invoice > date_to:
             date_invoice = date_to
         theoretical_duration = date_to - date_from + timedelta(1)
-        real_duration = date_to - date_invoice
+        real_duration = date_to - date_invoice + timedelta(1)
         if theoretical_duration != real_duration:
             return {
                 "quantity": round(

membership_prorate_variable_period/tests/test_membership_prorate_variable_period.py

@@ -63,7 +63,7 @@ def test_create_invoice_membership_product_prorate_fixed(self):
 
     def test_create_invoice_membership_product_prorate_week(self):
         invoice = self.create_invoice("2015-01-01")  # It's thursday
-        self.assertAlmostEqual(invoice.invoice_line_ids[0].quantity, 0.43, 2)
+        self.assertAlmostEqual(invoice.invoice_line_ids[0].quantity, 0.57, 2)
         self.assertTrue(self.partner.member_lines)
         self.assertEqual(self.partner.member_lines[0].state, "waiting")
         self.assertEqual(
@@ -77,7 +77,7 @@ def test_create_invoice_membership_product_prorate_week(self):
     def test_create_invoice_membership_product_prorate_month(self):
         self.product.membership_interval_unit = "months"
         invoice = self.create_invoice("2015-04-15")
-        self.assertAlmostEqual(invoice.invoice_line_ids[0].quantity, 0.5, 2)
+        self.assertAlmostEqual(invoice.invoice_line_ids[0].quantity, 0.53, 2)
         self.assertTrue(self.partner.member_lines)
         self.assertEqual(self.partner.member_lines[0].state, "waiting")
         self.assertEqual(