From f32ee6d0ec31580cd1ab55e64ff4fb2122aba420 Mon Sep 17 00:00:00 2001
From: Mariusz Felisiak <felisiak.mariusz@gmail.com>
Date: Fri, 28 Apr 2017 06:07:28 +0200
Subject: [PATCH] Refs #6767 -- Added test for fetching decimal values without
 rounding error on Oracle.

---
 tests/model_fields/test_decimalfield.py | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/tests/model_fields/test_decimalfield.py b/tests/model_fields/test_decimalfield.py
index 8ba7562618..944ce5620d 100644
--- a/tests/model_fields/test_decimalfield.py
+++ b/tests/model_fields/test_decimalfield.py
@@ -1,8 +1,10 @@
+import unittest
+
 from decimal import Decimal
 
 from django.core import validators
 from django.core.exceptions import ValidationError
-from django.db import models
+from django.db import connection, models
 from django.test import TestCase
 
 from .models import BigD, Foo
@@ -49,6 +51,12 @@ class DecimalFieldTests(TestCase):
         bd = BigD.objects.get(pk=bd.pk)
         self.assertEqual(bd.d, Decimal('12.9'))
 
+    @unittest.skipIf(connection.vendor == 'sqlite', 'SQLite stores values rounded to 15 significant digits.')
+    def test_fetch_from_db_without_float_rounding(self):
+        big_decimal = BigD.objects.create(d=Decimal('.100000000000000000000000000005'))
+        big_decimal.refresh_from_db()
+        self.assertEqual(big_decimal.d, Decimal('.100000000000000000000000000005'))
+
     def test_lookup_really_big_value(self):
         """
         Really big values can be used in a filter statement.