public void VisitLambda_Unchanged()
{
var expression = ExpressionInstanceCreator.CreateLambdaWithArguments();
var parameter = expression.Parameters.Single();
Expect.Call(VisitorMock.Visit(expression.Body)).Return(expression.Body);
Expect.Call(VisitorMock.Visit(parameter)).Return(parameter);
var result = (LambdaExpression)InvokeAndCheckVisit("VisitLambda", expression);
Assert.That(result, Is.SameAs(expression));
}
public void VisitLambda_ChangedParameters()
{
var expression = ExpressionInstanceCreator.CreateLambdaWithArguments();
var parameter = expression.Parameters.Single();
Expression newParameter = Expression.Parameter(typeof(int), "i");
Expect.Call(VisitorMock.Visit(expression.Body)).Return(expression.Body);
Expect.Call(VisitorMock.Visit(parameter)).Return(newParameter);
var result = (LambdaExpression)InvokeAndCheckVisit("VisitLambda", expression);
Assert.That(result, Is.Not.SameAs(expression));
Assert.That(result.NodeType, Is.EqualTo(ExpressionType.Lambda));
Assert.That(result.Parameters, Is.EqualTo(new[] { newParameter }));
Assert.That(result.Body, Is.SameAs(expression.Body));
}
