public void Parse_WithSubQuery_UsesNodeTypeRegistry()
{
var emptyNodeTypeRegistry = new MethodInfoBasedNodeTypeRegistry();
emptyNodeTypeRegistry.Register(SelectExpressionNode.GetSupportedMethods(), typeof(SelectExpressionNode));
var parser = new MethodCallExpressionParser(emptyNodeTypeRegistry);
var expression = (MethodCallExpression)ExpressionHelper.MakeExpression <IQueryable <Cook>, IQueryable <int> > (
q => q.Select(s => s.Assistants.Count()));
var result = parser.Parse("t", _source, expression.Arguments.Skip(1), expression);
Assert.That(result, Is.InstanceOf(typeof(SelectExpressionNode)));
Assert.That(((SelectExpressionNode)result).Selector, Is.Not.TypeOf(typeof(SubQueryExpression)),
"The given nodeTypeRegistry does not know any query methods, so no SubQueryExpression is generated.");
}
private IExpressionNode ParseMethodCallExpression(MethodCallExpression methodCallExpression)
{
return(_parser.Parse("x", _source, methodCallExpression.Arguments.Skip(1), methodCallExpression));
}