feat: added delete api

src/nethsec/mwan/__init__.py

@@ -292,3 +292,11 @@ def index_policies(e_uci: EUci) -> list[dict]:
         # append policy to data
         data.append(policy_data)
     return data
+
+
+def delete_policy(e_uci: EUci, name: str) -> list[str]:
+    if name not in utils.get_all_by_type(e_uci, 'mwan3', 'policy').keys():
+        raise ValidationError('name', 'invalid', name)
+    e_uci.delete('mwan3', name)
+    e_uci.save('mwan3')
+    return [f'mwan3.{name}']

tests/test_mwan.py

@@ -4,6 +4,7 @@
 from euci import EUci
 
 from nethsec import mwan
+from nethsec.utils import ValidationError
 
 network_db = """
 config interface 'loopback'
@@ -287,3 +288,23 @@ def test_unique_rule(e_uci):
         mwan.store_rule(e_uci, 'additional rule', 'ns_default')
         assert e.value.args[0] == 'name'
         assert e.value.args[1] == 'invalid'
+
+
+def test_delete_non_existent_policy(e_uci):
+    with pytest.raises(ValidationError) as e:
+        mwan.delete_policy(e_uci, 'ns_default')
+        assert e.value.args[0] == 'name'
+        assert e.value.args[1] == 'invalid'
+        assert e.value.args[2] == 'ns_default'
+
+
+def test_delete_policy(e_uci):
+    mwan.store_policy(e_uci, 'default', [
+        {
+            'name': 'RED_1',
+            'metric': '20',
+            'weight': '100',
+        }
+    ])
+    assert mwan.delete_policy(e_uci, 'ns_default') == ['mwan3.ns_default']
+    assert e_uci.get('mwan3', 'ns_default', default=None) is None