batman (working version kinda)

tests/test_app.py

@@ -0,0 +1,11 @@
+import pytest
+from app.core import models
+
+# Example test
+@pytest.mark.parametrize("cidr, expected", [
+    ('192.168.1.0/24', 256),
+    ('10.0.0.0/8', 16777216),
+])
+def test_subnet_cidr_parsing(cidr, expected):
+    subnet = models.Subnet(cidr=cidr)
+    assert subnet.used_ips == expected