[REF] - code refactoring + improve unit tests

contract_variable_qty_prorated/models/contract_line.py

@@ -7,39 +7,52 @@ from odoo import api, models
 class ContractLine(models.Model):
     _inherit = "contract.line"
 
+    @api.multi
+    def compute_prorated(
+        self, period_first_date, period_last_date, invoice_date
+    ):
+        self.ensure_one()
+        return self._compute_prorated(
+            period_first_date,
+            period_last_date,
+            invoice_date,
+            self.recurring_rule_type,
+            self.recurring_interval,
+            self.recurring_invoicing_type,
+        )
+
     @api.model
     def _compute_prorated(
-        self, real_next_date, real_last_date, theoretical_next_date,
+        self,
-            theoretical_last_date):
+        period_first_date,
+        period_last_date,
+        invoice_date,
+        recurring_rule_type,
+        recurring_interval,
+        recurring_invoicing_type,
+    ):
         def _invoiced_days(next_date, last_date):
             return (next_date - last_date).days + 1
 
-        return _invoiced_days(real_next_date, real_last_date) / _invoiced_days(
-            theoretical_next_date, theoretical_last_date
-        )
-
-    @api.multi
-    def compute_prorated(self, period_first_date, period_last_date,
-                         invoice_date):
-        self.ensure_one()
         relative_delta = self.get_relative_delta(
-            self.recurring_rule_type, self.recurring_interval
+            recurring_rule_type, recurring_interval
         )
         theoretical_next_date = invoice_date
-        if self.recurring_rule_type == "monthlylastday":
-            relative_delta = self.get_relative_delta("monthly",
-                                                     self.recurring_interval)
-            theoretical_next_date += self.get_relative_delta("daily", 1)
         if (
-            self.recurring_invoicing_type == "pre-paid"
+            recurring_rule_type == "monthlylastday"
-            and self.recurring_rule_type != "monthlylastday"
+            and recurring_invoicing_type == "post-paid"
         ):
+            relative_delta = self.get_relative_delta(
+                "monthly", recurring_interval
+            )
+            theoretical_next_date += self.get_relative_delta("daily", 1)
+
+        if recurring_invoicing_type == "pre-paid":
             theoretical_next_date += relative_delta
         theoretical_last_date = theoretical_next_date - relative_delta
         theoretical_next_date -= self.get_relative_delta("daily", 1)
         real_last_date = period_first_date
         real_next_date = period_last_date
-        return self._compute_prorated(
+        return _invoiced_days(real_next_date, real_last_date) / _invoiced_days(
-            real_next_date, real_last_date, theoretical_next_date,
+            theoretical_next_date, theoretical_last_date
-            theoretical_last_date
         )

contract_variable_qty_prorated/tests/test_compute_proprata.py

@@ -1,6 +1,7 @@
 # Copyright 2018 ACSONE SA/NV.
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
+
 from odoo import fields
 from odoo.tests.common import TransactionCase
 
@@ -306,7 +307,7 @@ class TestProductTemplate(TransactionCase):
                 ),
             ),
             (
-                0.032,
+                1.0,
                 (
                     "Case 18",
                     "monthly",
@@ -315,7 +316,7 @@ class TestProductTemplate(TransactionCase):
                     to_date("2017-02-15"),
                     to_date("2018-01-01"),
                     False,
-                    to_date("2018-01-30"),
+                    to_date("2017-12-31"),
                 ),
             ),
             (
@@ -331,19 +332,6 @@ class TestProductTemplate(TransactionCase):
                     to_date("2018-01-30"),
                 ),
             ),
-            (
-                1.0,
-                (
-                    "Case 18",
-                    "monthlylastday",
-                    1,
-                    "pre-paid",
-                    to_date("2017-02-15"),
-                    to_date("2018-01-31"),
-                    False,
-                    to_date("2017-12-31"),
-                ),
-            ),
             (
                 1.566,
                 (
@@ -380,6 +368,30 @@ class TestProductTemplate(TransactionCase):
                     False,
                 ),
             ),
+            (
+                1,
+                (
+                    "Case 22",
+                    "monthlylastday",
+                    1,
+                    "pre-paid",
+                    to_date("2018-03-01"),
+                    to_date("2018-03-01"),
+                    False,
+                ),
+            ),
+            (
+                0.5,
+                (
+                    "Case 23",
+                    "monthlylastday",
+                    1,
+                    "pre-paid",
+                    to_date("2018-04-16"),
+                    to_date("2018-04-16"),
+                    False,
+                ),
+            ),
         ]
         for result, combination in combinations:
             update_contract_line(*combination)