diff --git a/monkey/infection_monkey/utils/test_auto_new_user_factory.py b/monkey/infection_monkey/utils/test_auto_new_user_factory.py
new file mode 100644
index 000000000..f57bea4bd
--- /dev/null
+++ b/monkey/infection_monkey/utils/test_auto_new_user_factory.py
@@ -0,0 +1,34 @@
+import pytest
+
+import infection_monkey.utils.auto_new_user_factory as new_user_factory
+
+
+class NewUserStub:
+    def __init__(self, username, password):
+        pass
+
+
+class NewWindowsUserStub(NewUserStub):
+    pass
+
+
+class NewLinuxUserStub(NewUserStub):
+    pass
+
+
+@pytest.fixture
+def patch_new_user_classes(monkeypatch):
+    monkeypatch.setattr(new_user_factory, "AutoNewWindowsUser", NewWindowsUserStub)
+    monkeypatch.setattr(new_user_factory, "AutoNewLinuxUser", NewLinuxUserStub)
+
+
+def test_create_auto_new_user_windows_user(patch_new_user_classes):
+    new_user = new_user_factory.create_auto_new_user("user", "password", True)
+
+    assert isinstance(new_user, NewWindowsUserStub)
+
+
+def test_create_auto_new_user_linux_user(patch_new_user_classes):
+    new_user = new_user_factory.create_auto_new_user("user", "password", False)
+
+    assert isinstance(new_user, NewLinuxUserStub)