diff --git a/accounting/tests.py b/accounting/tests.py
index 3c76c66a..4d937ac9 100644
--- a/accounting/tests.py
+++ b/accounting/tests.py
@@ -6,7 +6,7 @@ from django.conf import settings
 
 from core.models import User
 from counter.models import Counter
-from accounting.models import GeneralJournal, Operation, AccountingType
+from accounting.models import GeneralJournal, Operation, AccountingType, SimplifiedAccountingType
 
 
 class RefoundAccountTest(TestCase):
@@ -75,7 +75,6 @@ class OperationTest(TestCase):
     def test_new_operation(self):
         self.client.login(username='comptable', password='plop')  
         at = AccountingType.objects.filter(code = '604').first()
-        at.save()
         response = self.client.post(reverse('accounting:op_new', 
                                                         args=[self.journal.id]),
                                                         {'amount': 30,
@@ -95,11 +94,12 @@ class OperationTest(TestCase):
                                                         })
         self.assertFalse(response.status_code == 403)
         self.assertTrue(self.journal.operations.filter(target_label = "Le fantome de la nuit").exists())
+        response_get = self.client.get(reverse("accounting:journal_details", args=[self.journal.id]))
+        self.assertTrue('<td>Le fantome de la nuit</td>' in str(response_get.content))
 
-    def test_new_operation_not_authorized(self):
-        self.client.login(username='skia', password='plop')
+    def test_bad_new_operation(self):
+        self.client.login(username='comptable', password='plop')
         at = AccountingType.objects.filter(code = '604').first()
-        at.save()
         response = self.client.post(reverse('accounting:op_new', 
                                                         args=[self.journal.id]),
                                                         {'amount': 30,
@@ -113,8 +113,57 @@ class OperationTest(TestCase):
                                                         'cheque_number' : '', 
                                                         'invoice' : '', 
                                                         'simpleaccounting_type' : '',
+                                                        'accounting_type': '',
+                                                        'label' : '',
+                                                        'done' : False,
+                                                        })
+        self.assertTrue('Vous devez fournir soit un type comptable simplifi\\xc3\\xa9 ou un type comptable standard' in str(response.content))
+
+    def test_new_operation_not_authorized(self):
+        self.client.login(username='skia', password='plop')
+        at = AccountingType.objects.filter(code = '604').first()
+        response = self.client.post(reverse('accounting:op_new', 
+                                                        args=[self.journal.id]),
+                                                        {'amount': 30,
+                                                        'remark' : "Un gros test",
+                                                        'journal' : self.journal.id,
+                                                        'target_type' : 'OTHER',
+                                                        'target_id' : '',
+                                                        'target_label' : "Le fantome du jour",
+                                                        'date' : '04/12/2020',
+                                                        'mode' : 'CASH',
+                                                        'cheque_number' : '', 
+                                                        'invoice' : '', 
+                                                        'simpleaccounting_type' : '',
                                                         'accounting_type': at.id,
                                                         'label' : '',
                                                         'done' : False,
                                                         })
-        self.assertTrue(response.status_code == 403)
\ No newline at end of file
+        self.assertTrue(response.status_code == 403)
+        self.assertFalse(self.journal.operations.filter(target_label = "Le fantome du jour").exists())
+
+    def test__operation_simple_accounting(self):
+        self.client.login(username='comptable', password='plop')
+        sat = SimplifiedAccountingType.objects.all().first()
+        response = self.client.post(reverse('accounting:op_new', 
+                                                        args=[self.journal.id]),
+                                                        {'amount': 23,
+                                                        'remark' : "Un gros test",
+                                                        'journal' : self.journal.id,
+                                                        'target_type' : 'OTHER',
+                                                        'target_id' : '',
+                                                        'target_label' : "Le fantome de l'aurore",
+                                                        'date' : '04/12/2020',
+                                                        'mode' : 'CASH',
+                                                        'cheque_number' : '', 
+                                                        'invoice' : '', 
+                                                        'simpleaccounting_type' : sat.id,
+                                                        'accounting_type': '',
+                                                        'label' : '',
+                                                        'done' : False,
+                                                        })
+        self.assertFalse(response.status_code == 403)
+        self.assertTrue(self.journal.operations.filter(amount=23).exists())
+        response_get = self.client.get(reverse("accounting:journal_details", args=[self.journal.id]))
+        self.assertTrue("<td>Le fantome de l&#39;aurore</td>" in str(response_get.content))
+        self.assertTrue(self.journal.operations.filter(amount=23).values('accounting_type').first()['accounting_type'] == AccountingType.objects.filter(code=6).values('id').first()['id'])
\ No newline at end of file