public void Union()
{
var expression = new RootQuery()
.Union
.Select(x => x.Simple)
.Select(x => new
{
x.Name,
x.Description,
});
Expression <Func <JObject, object> > expected = data =>
ExpressionMethods.Select(
((Func <JToken, IQueryable <JToken> >)(x => ExpressionMethods.ChildrenOfType(x, "Simple")))((data["data"]["union"])),
x => new
{
Name = x["name"].ToObject <string>(),
Description = x["description"].ToObject <string>(),
});
// We need to remove the (Func<JToken, IQueryable<JToken>>) cast that is needed by
// C# but not by expression trees.
expected = (Expression <Func <JObject, object> >)RemoveConvert.Default.Visit(expected);
var query = new QueryBuilder().Build(expression);
Assert.Equal(expected.ToString(), query.Expression.ToString());
}
public void Search_User_Name_Via_Edges()
{
var expression = new Query()
.Search("foo", SearchType.User, 30)
.Edges.Select(x => x.Node)
.Select(x => x.User.Name);
Expression <Func <JObject, IEnumerable <object> > > expected = data =>
ExpressionMethods.Select(
ExpressionMethods.ChildrenOfType(data["data"]["search"]["edges"], "User"),
x => x["name"].ToObject <string>());
var query = new QueryBuilder().Build(expression);
Assert.Equal(expected.ToString(), query.Expression.ToString());
}
public void Inline_Fragment()
{
var expression = new RootQuery()
.Data
.OfType <NestedData>()
.Select(x => new
{
x.Id,
Items = x.Items.Select(i => i.Name),
});
Expression <Func <JObject, object> > expected = data =>
ExpressionMethods.Select(
ExpressionMethods.ChildrenOfType(data["data"]["data"], "NestedData"),
x => new
{
Id = x["id"].ToObject <string>(),
Items = ExpressionMethods.SelectEntity(x["items"], i => i["name"].ToObject <string>())
});
var query = new QueryBuilder().Build(expression);
Assert.Equal(expected.ToString(), query.Expression.ToString());
}