public void ResultSelectorNullNoComparer()
{
CustomerRec[] outer = new[]
{
new CustomerRec{ name = "Prakash", custID = 98022 },
new CustomerRec{ name = "Tim", custID = 99021 },
new CustomerRec{ name = "Robert", custID = 99022 }
};
AnagramRec[] inner = new[]
{
new AnagramRec{ name = "miT", orderID = 43455, total = 10 },
new AnagramRec{ name = "Prakash", orderID = 323232, total = 9 }
};
Assert.Throws<ArgumentNullException>("resultSelector", () => outer.AsQueryable().Join(inner.AsQueryable(), e => e.name, e => e.name, (Expression<Func<CustomerRec, AnagramRec, JoinRec>>)null));
}