feat(tests): add comprehensive tests for blackhole integration, RNPath management, and RNStatus handling

tests/backend/test_rnstatus_blackhole.py

@@ -0,0 +1,62 @@
+import pytest
+from unittest.mock import MagicMock, patch
+from meshchatx.src.backend.rnstatus_handler import RNStatusHandler
+import RNS
+
+
+@pytest.fixture
+def mock_reticulum_instance():
+    mock = MagicMock()
+    mock.get_interface_stats.return_value = {"interfaces": []}
+    mock.get_link_count.return_value = 0
+    return mock
+
+
+def test_blackhole_status_enabled(mock_reticulum_instance):
+    with (
+        patch.object(RNS.Reticulum, "publish_blackhole_enabled", return_value=True),
+        patch.object(
+            RNS.Reticulum,
+            "blackhole_sources",
+            return_value=[b"\x01" * 16, b"\x02" * 16],
+        ),
+    ):
+        handler = RNStatusHandler(mock_reticulum_instance)
+        status = handler.get_status()
+
+        assert status["blackhole_enabled"] is True
+        assert len(status["blackhole_sources"]) == 2
+        assert status["blackhole_sources"][0] == (b"\x01" * 16).hex()
+
+
+def test_blackhole_status_disabled(mock_reticulum_instance):
+    with (
+        patch.object(RNS.Reticulum, "publish_blackhole_enabled", return_value=False),
+        patch.object(RNS.Reticulum, "blackhole_sources", return_value=[]),
+    ):
+        handler = RNStatusHandler(mock_reticulum_instance)
+        status = handler.get_status()
+
+        assert status["blackhole_enabled"] is False
+        assert status["blackhole_sources"] == []
+
+
+def test_blackhole_status_missing_api(mock_reticulum_instance):
+    # Test backward compatibility or when API is missing (e.g. older RNS version simulation)
+    # We simulate this by making the attribute access raise AttributeError
+    # However, since we import RNS in the module, we need to ensure the mock raises AttributeError
+
+    # We can't easily remove attributes from the real RNS module if it's already imported.
+    # But we can patch the RNS object inside rnstatus_handler module.
+
+    with patch(
+        "meshchatx.src.backend.rnstatus_handler.RNS.Reticulum"
+    ) as mock_rns_class:
+        del mock_rns_class.publish_blackhole_enabled
+
+        handler = RNStatusHandler(mock_reticulum_instance)
+        status = handler.get_status()
+
+        # Should default to False/Empty on exception
+        assert status["blackhole_enabled"] is False
+        assert status["blackhole_sources"] == []