public void CanGenerateExpressionWithNullSortDescription()
{
var param = Expression.Parameter(typeof(IQueryable<ClassA>), "q");
var expr = new SortVisitor<ClassA>().Visit(param, null);
Assert.AreEqual("q", expr.ToString());
}
public void CanSortBySingleAttributeDescending()
{
var sort = Helper.Sort("PropB.PropDateTimeNullable", ListSortDirection.Descending);
var param = Expression.Parameter(typeof(IQueryable<ClassA>), "q");
var expr = new SortVisitor<ClassA>().Visit(param, sort);
Assert.AreEqual("q.OrderByDescending(x => x.PropB.PropDateTimeNullable)", expr.ToString());
}
public void CanSortByThreeAttributesOneDescendingOtherAscendingLastDescending()
{
var sort = Helper.Sorts(
Helper.Sort("PropInt", ListSortDirection.Descending),
Helper.Sort("PropString", ListSortDirection.Ascending),
Helper.Sort("PropB.PropDecimalNullable", ListSortDirection.Descending)
);
var param = Expression.Parameter(typeof(IQueryable<ClassA>), "q");
var expr = new SortVisitor<ClassA>().Visit(param, sort);
Assert.AreEqual("q.OrderByDescending(x => x.PropInt).ThenBy(x => x.PropString).ThenByDescending(x => x.PropB.PropDecimalNullable)", expr.ToString());
}
public void CanSortByTwoAttributesAllDescending()
{
var sort = Helper.Sorts(
Helper.Sort("PropInt", ListSortDirection.Descending),
Helper.Sort("PropString", ListSortDirection.Descending));
var param = Expression.Parameter(typeof(IQueryable<ClassA>), "q");
var expr = new SortVisitor<ClassA>().Visit(param, sort);
Assert.AreEqual("q.OrderByDescending(x => x.PropInt).ThenByDescending(x => x.PropString)", expr.ToString());
}