Tidy accommodation validation

validate_yaml.py

@@ -57,31 +57,25 @@ def check_events() -> None:
     print(len(events), "events")
 
 
+def check_coordinates(item: agenda.types.StrDict) -> None:
+    """Check coordinate are valid."""
+    if "latitude" not in item and "longitude" not in item:
+        return
+    assert "latitude" in item and "longitude" in item
+    assert all(isinstance(item[key], (int, float)) for key in ("latitude", "longitude"))
+
+
 def check_accommodation() -> None:
     """Check accommodation."""
     filepath = os.path.join(data_dir, "accommodation.yaml")
     accommodation_list = yaml.safe_load(open(filepath))
 
+    required_fields = ["type", "name", "country", "location", "trip", "from", "to"]
+
     for stay in accommodation_list:
         try:
-            assert all(
-                field in stay
-                for field in (
-                    "type",
-                    "name",
-                    "country",
-                    "location",
-                    "trip",
-                    "from",
-                    "to",
-                )
-            )
-            if "latitude" in stay or "longitude" in stay:
-                assert "latitude" in stay and "longitude" in stay
-                assert all(
-                    isinstance(stay[key], (int, float))
-                    for key in ("latitude", "longitude")
-                )
+            assert all(field in stay for field in required_fields)
+            check_coordinates(stay)
         except AssertionError:
             pprint(stay)
             raise