Adjust .testing.simulated_solution() for #300

Author: khaeru

message_ix_models/model/transport/testing.py

@@ -186,8 +186,12 @@ def simulated_solution(request, context: "Context", build: bool) -> Reporter:
     from .report import callback
 
     if build:
+        # Use some default options to force built_transport → build.main() →
+        # build.get_computer() to generate config
+        options = dict(dummy_LDV=False)
+
         # Build the base model
-        scenario = built_transport(request, context, solved=False)
+        scenario = built_transport(request, context, options=options, solved=False)
 
         # Config object generated by built_transport()
         config: "Config" = context.transport