misc: add User.set_random_password() (#47943)

src/authentic2/custom_user/models.py

@@ -17,7 +17,9 @@
 
 from __future__ import unicode_literals
 
+import base64
 import datetime
+import os
 import random
 
 from django.db import models, transaction
@@ -368,6 +370,9 @@ class User(AbstractBaseUser, PermissionMixin):
         if save:
             self.save(update_fields=['is_active', 'deleted'])
 
+    def set_random_password(self):
+        self.set_password(base64.b64encode(os.urandom(32)))
+
 
 class DeletedUser(models.Model):
     deleted = models.DateTimeField(

tests/test_user_model.py

@@ -258,3 +258,11 @@ def test_save_userexternalid_on_delete_user(db):
             'external_id': '4567',
         }
     ]
+
+
+def test_set_random_password():
+    user = User()
+    user.set_unusable_password()
+    assert not user.has_usable_password()
+    user.set_random_password()
+    assert user.has_usable_password()