adds web_server tests

tests/server/web_server/test_web_server.py

@@ -0,0 +1,47 @@
+import json
+import logging
+import tempfile
+from pathlib import Path
+
+import pydase
+from pydase.data_service.data_service_observer import DataServiceObserver
+from pydase.data_service.state_manager import StateManager
+from pydase.server.web_server.web_server import WebServer
+
+logger = logging.getLogger(__name__)
+
+
+def test_web_settings() -> None:
+    class SubClass(pydase.DataService):
+        name = "Hello"
+
+    class ServiceClass(pydase.DataService):
+        def __init__(self) -> None:
+            super().__init__()
+            self.attr_1 = SubClass()
+            self.added = "added"
+
+    service_instance = ServiceClass()
+    state_manager = StateManager(service_instance)
+    observer = DataServiceObserver(state_manager)
+    with tempfile.TemporaryDirectory() as tmp:
+        web_settings = {
+            "attr_1": {"displayName": "Attribute"},
+            "attr_1.name": {"displayName": "Attribute name"},
+        }
+        web_settings_file = Path(tmp) / "web_settings.json"
+
+        with web_settings_file.open("w") as file:
+            file.write(json.dumps(web_settings))
+
+        server = WebServer(
+            observer,
+            host="0.0.0.0",
+            port=8001,
+            generate_new_web_settings=True,
+            config_dir=Path(tmp),
+        )
+        new_web_settings = server.web_settings
+
+        # existing entries are not overwritten, new entries are appended
+        assert new_web_settings == {**web_settings, "added": {"displayName": "added"}}