public async Task ChangeLldbEvalFlagInRuntimeAsync()
{
_optionPageGrid.ExpressionEvaluationEngine = ExpressionEvaluationEngineFlag.LLDB;
RemoteValue mockVariable = CreateMockVariable();
var natvisScope = new NatvisScope();
await _evaluator.EvaluateExpressionAsync("2 + 2", _varInfoFactory.Create(mockVariable),
natvisScope, "result");
await mockVariable.DidNotReceiveWithAnyArgs().EvaluateExpressionLldbEvalAsync(
Arg.Any <string>());
await mockVariable.Received(1).EvaluateExpressionAsync(Arg.Is("2 + 2"));
mockVariable.ClearReceivedCalls();
// Change the configuration flag
_optionPageGrid.ExpressionEvaluationEngine = ExpressionEvaluationEngineFlag.LLDB_EVAL;
await _evaluator.EvaluateExpressionAsync("3 + 3", _varInfoFactory.Create(mockVariable),
natvisScope, "result");
await mockVariable.Received(1).EvaluateExpressionLldbEvalAsync(
Arg.Is("3 + 3"), Arg.Is(natvisScope.ContextVariables));
mockVariable.ClearReceivedCalls();
// Change the configuration flag back to LLDB
_optionPageGrid.ExpressionEvaluationEngine = ExpressionEvaluationEngineFlag.LLDB;
await _evaluator.EvaluateExpressionAsync("4 + 4", _varInfoFactory.Create(mockVariable),
natvisScope, "result");
await mockVariable.DidNotReceiveWithAnyArgs().EvaluateExpressionLldbEvalAsync(
Arg.Any <string>());
await mockVariable.Received(1).EvaluateExpressionAsync(Arg.Is("4 + 4"));
}