diff --git a/tienda_ilusion/don_confiao/tests/test_jar_reconciliation.py b/tienda_ilusion/don_confiao/tests/test_jar_reconciliation.py
index 8397cbc..72899a3 100644
--- a/tienda_ilusion/don_confiao/tests/test_jar_reconciliation.py
+++ b/tienda_ilusion/don_confiao/tests/test_jar_reconciliation.py
@@ -113,6 +113,30 @@ class TestJarReconcliation(TestCase):
             reconciliation.clean()
             reconciliation.save()
 
+    def test_fail_create_reconciliation_with_wrong_total_purchases_purchases(self):
+        url = '/don_confiao/reconciliation_jar/create'
+        total_purchases = (11 * 72500) + (27 * 72500)
+        bad_total_purchases = total_purchases + 2
+        data = {
+            'date_time': '2024-12-02T21:07',
+            'cashman': 'carlos',
+            'total_cash_purchases': bad_total_purchases,
+            'cash_taken': total_purchases,
+            'cash_discrepancy': 0,
+            'purchases': json.dumps([#machete por error al codificar el json en el request
+                self.purchase.id,
+                self.purchase2.id,
+                self.purchase.id,
+            ]),
+        }
+        response = self.client.post(url, data, format='json')
+        rawContent = response.content.decode('utf-8')
+        content = json.loads(rawContent)
+
+        self.assertEqual(response.status_code, 400)
+        self.assertIn('error', content)
+        self.assertIn('total_cash_purchases', content['error'])
+
     def test_create_reconciliation_with_purchases(self):
         url = '/don_confiao/reconciliation_jar/create'
         total_purchases = (11 * 72500) + (27 * 72500)