little update

tests/test_vpc_network_manager.py

@@ -0,0 +1,49 @@
+import json
+from unittest.mock import patch
+
+import pytest
+
+from cloud import CreateVPCRequest, VPCAPIError, VPCNetworkManager
+
+
+class Response:
+    def __init__(self, payload: dict) -> None:
+        self.payload = payload
+
+    def read(self) -> bytes:
+        return json.dumps(self.payload).encode()
+
+    def __enter__(self) -> "Response":
+        return self
+
+    def __exit__(self, *args: object) -> None:
+        return None
+
+
+@patch("cloud.vpc_network_manager.urlopen")
+def test_create_vpc_sends_bearer_request(urlopen) -> None:
+    urlopen.return_value = Response({"id": "operation-id"})
+    manager = VPCNetworkManager("token", base_url="https://api.example")
+
+    operation = manager.create_vpc(
+        CreateVPCRequest(projectId="project-id", name="game-vpc")
+    )
+    assert operation.id == "operation-id"
+
+    request = urlopen.call_args.args[0]
+    assert request.full_url == "https://api.example/v1/vpcs"
+    assert request.method == "POST"
+    assert request.get_header("Authorization") == "Bearer token"
+    assert json.loads(request.data) == {"projectId": "project-id", "name": "game-vpc"}
+
+
+def test_manager_rejects_empty_token() -> None:
+    with pytest.raises(ValueError, match="token must not be empty"):
+        VPCNetworkManager("")
+
+
+def test_api_error_keeps_status_and_details() -> None:
+    error = VPCAPIError(403, "forbidden", [{"reason": "denied"}])
+
+    assert error.status == 403
+    assert error.details == [{"reason": "denied"}]