test: castle mesh CLI (status/nodes/config, unreachable path)

cli/tests/test_mesh.py

@@ -0,0 +1,67 @@
+"""Tests for the castle mesh command (API calls mocked)."""
+
+from __future__ import annotations
+
+import urllib.error
+from argparse import Namespace
+from unittest.mock import patch
+
+from castle_cli.commands.mesh import run_mesh
+
+
+class TestMeshCommand:
+    def test_status(self, capsys: object) -> None:
+        data = {
+            "enabled": True, "connected": True, "nats_url": "tls://x:4222",
+            "peer_count": 1, "peers": ["primer"],
+        }
+        with patch("castle_cli.commands.mesh._get", return_value=data):
+            rc = run_mesh(Namespace(mesh_command="status"))
+        assert rc == 0
+        out = capsys.readouterr().out  # type: ignore[attr-defined]
+        assert "connected" in out and "primer" in out
+
+    def test_nodes(self, capsys: object) -> None:
+        data = [
+            {"hostname": "civil", "online": True, "is_stale": False,
+             "deployed_count": 5, "is_local": True},
+            {"hostname": "primer", "online": True, "is_stale": False,
+             "deployed_count": 3, "is_local": False},
+        ]
+        with patch("castle_cli.commands.mesh._get", return_value=data):
+            rc = run_mesh(Namespace(mesh_command="nodes"))
+        assert rc == 0
+        out = capsys.readouterr().out  # type: ignore[attr-defined]
+        assert "civil" in out and "primer" in out
+
+    def test_config_list(self, capsys: object) -> None:
+        data = {"role": "authority", "keys": ["fleet/motd"]}
+        with patch("castle_cli.commands.mesh._get", return_value=data):
+            rc = run_mesh(
+                Namespace(mesh_command="config", mesh_config_command="list")
+            )
+        assert rc == 0
+        assert "fleet/motd" in capsys.readouterr().out  # type: ignore[attr-defined]
+
+    def test_config_set_calls_put(self) -> None:
+        with patch(
+            "castle_cli.commands.mesh._put", return_value={"ok": True}
+        ) as put:
+            rc = run_mesh(
+                Namespace(
+                    mesh_command="config",
+                    mesh_config_command="set",
+                    key="fleet/x",
+                    value="v",
+                )
+            )
+        assert rc == 0
+        put.assert_called_once()
+
+    def test_api_unreachable_returns_1(self, capsys: object) -> None:
+        with patch(
+            "castle_cli.commands.mesh._get",
+            side_effect=urllib.error.URLError("refused"),
+        ):
+            rc = run_mesh(Namespace(mesh_command="status"))
+        assert rc == 1