[FIX] account_budget: in test, use `float_compare` to compare amounts

addons/account_budget/tests/test_theoreticalamount.py

@@ -3,7 +3,7 @@ from datetime import datetime
 from mock import patch
 
 from openerp.tests.common import TransactionCase
-from openerp.tools import DEFAULT_SERVER_DATETIME_FORMAT
+from openerp.tools import DEFAULT_SERVER_DATETIME_FORMAT, float_compare
 
 
 # ---------------------------------------------------------
@@ -32,65 +32,71 @@ class TestTheoreticalAmount(TransactionCase):
         self.patcher = patch('openerp.addons.account_budget.account_budget.datetime', wraps=datetime)
         self.mock_datetime = self.patcher.start()
 
+    def assertFloatEqual(self, value1, value2, *args, **kwargs):
+        """ Compare two values of the field theoritical_amount """
+        digits = type(self.line).theoritical_amount.digits
+        result = float_compare(value1, value2, precision_digits=digits[1])
+        return self.assertFalse(result, *args, **kwargs)
+
     def test_01(self):
         """Start"""
         date = datetime.strptime('2014-01-01 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, 0)
+        self.assertFloatEqual(self.line.theoritical_amount, 0)
 
     def test_02(self):
         """After 24 hours"""
         date = datetime.strptime('2014-01-02 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -1)
+        self.assertFloatEqual(self.line.theoritical_amount, -1)
 
     def test_03(self):
         """After 36 hours"""
         date = datetime.strptime('2014-01-02 12:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -1.5)
+        self.assertFloatEqual(self.line.theoritical_amount, -1.5)
 
     def test_04(self):
         """After 48 hours"""
         date = datetime.strptime('2014-01-03 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -2)
+        self.assertFloatEqual(self.line.theoritical_amount, -2)
 
     def test_05(self):
         """After 10 days"""
         date = datetime.strptime('2014-01-11 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -10)
+        self.assertFloatEqual(self.line.theoritical_amount, -10)
 
     def test_06(self):
         """After 50 days"""
         date = datetime.strptime('2014-02-20 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -50)
+        self.assertFloatEqual(self.line.theoritical_amount, -50)
 
     def test_07(self):
         """After 182 days, exactly half of the budget line"""
         date = datetime.strptime('2014-07-02 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -182)
+        self.assertFloatEqual(self.line.theoritical_amount, -182)
 
     def test_08(self):
         """After 308 days at noon"""
         date = datetime.strptime('2014-11-05 12:00:00', DEFAULT_SERVER_DATETIME_FORMAT)  # remember, remember
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -308.5)
+        self.assertFloatEqual(self.line.theoritical_amount, -308.5)
 
     def test_09(self):
         """One day before"""
         date = datetime.strptime('2014-12-30 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -363)
+        self.assertFloatEqual(self.line.theoritical_amount, -363)
 
     def test_10(self):
         """At last"""
         date = datetime.strptime('2014-12-31 00:00:00', DEFAULT_SERVER_DATETIME_FORMAT)
         self.mock_datetime.now.return_value = date
-        self.assertEqual(self.line.theoritical_amount, -364)
+        self.assertFloatEqual(self.line.theoritical_amount, -364)
 
     def tearDown(self):
         self.patcher.stop()