test: cover hiding the visualizer when visualizer@v1 is inactive

Author: maximmaxim345

tests/tui/test_role_negotiation.py

@@ -0,0 +1,69 @@
+from __future__ import annotations
+
+from pathlib import Path
+from types import SimpleNamespace
+
+from aiosendspin.models.core import ServerHelloPayload
+from aiosendspin.models.types import ConnectionReason, Roles
+
+from sendspin.settings import ClientSettings
+from sendspin.tui.app import AppArgs, SendspinApp
+
+
+class _FakeUI:
+    def __init__(self) -> None:
+        self.visualizer_enabled_calls: list[bool] = []
+
+    def set_visualizer_enabled(self, enabled: bool) -> None:
+        self.visualizer_enabled_calls.append(enabled)
+
+
+def _make_app(tmp_path: Path) -> SendspinApp:
+    args = AppArgs(
+        audio_device=SimpleNamespace(index=0, name="Fake Device"),
+        client_id="test-client",
+        client_name="Test Client",
+        settings=ClientSettings(_settings_file=tmp_path / "settings.json"),
+        use_mpris=False,
+    )
+    return SendspinApp(args)
+
+
+def _payload(active_roles: list[str]) -> ServerHelloPayload:
+    return ServerHelloPayload(
+        server_id="srv",
+        name="srv",
+        version=1,
+        active_roles=active_roles,
+        connection_reason=ConnectionReason.DISCOVERY,
+    )
+
+
+def test_server_hello_without_visualizer_role_hides_panel(tmp_path: Path) -> None:
+    app = _make_app(tmp_path)
+    app._visualizer_enabled = True
+    app._ui = _FakeUI()
+
+    app._handle_server_hello(_payload(active_roles=["player@v1", "controller@v1"]))
+
+    assert app._ui.visualizer_enabled_calls == [False]
+
+
+def test_server_hello_with_visualizer_role_leaves_panel(tmp_path: Path) -> None:
+    app = _make_app(tmp_path)
+    app._visualizer_enabled = True
+    app._ui = _FakeUI()
+
+    app._handle_server_hello(_payload(active_roles=[Roles.VISUALIZER.value, "player@v1"]))
+
+    assert app._ui.visualizer_enabled_calls == []
+
+
+def test_server_hello_ignored_when_visualizer_disabled(tmp_path: Path) -> None:
+    app = _make_app(tmp_path)
+    app._visualizer_enabled = False
+    app._ui = _FakeUI()
+
+    app._handle_server_hello(_payload(active_roles=["player@v1"]))
+
+    assert app._ui.visualizer_enabled_calls == []