public void DynamicAnonList()
{
var n = 0;
var t2 = new AnonymousReadOnlyList<int>(() => n, i => i + 10);
t2.Count.AssertEquals(0);
t2.AssertSequenceEquals(new int[0]);
TestUtil.AssertThrows<ArgumentOutOfRangeException>(() => t2[0]);
n = 1;
t2.Count.AssertEquals(1);
t2[0].AssertEquals(10);
t2.AssertSequenceEquals(new[] { 10 });
TestUtil.AssertThrows<ArgumentOutOfRangeException>(() => t2[1]);
}
public void AnonListEfficientIterator()
{
var li = new List<int> {0};
var ri1 = new AnonymousReadOnlyList<int>(() => li.Count, i => li[i]);
var ri2 = new AnonymousReadOnlyList<int>(() => li.Count, i => li[i], li);
using (var e1 = ri1.GetEnumerator()) {
using (var e2 = ri2.GetEnumerator()) {
e1.MoveNext().AssertIsTrue();
e2.MoveNext().AssertIsTrue();
li.Add(1);
TestUtil.AssertThrows<InvalidOperationException>(() => e2.MoveNext()); // list modified during iteration
e1.MoveNext().AssertIsTrue(); // not using list iterator
}
}
}
public void DynamicAnonList()
{
var n = 0;
var t2 = new AnonymousReadOnlyList <int>(() => n, i => i + 10);
t2.Count.AssertEquals(0);
t2.AssertSequenceEquals(new int[0]);
TestUtil.AssertThrows <ArgumentOutOfRangeException>(() => t2[0]);
n = 1;
t2.Count.AssertEquals(1);
t2[0].AssertEquals(10);
t2.AssertSequenceEquals(new[] { 10 });
TestUtil.AssertThrows <ArgumentOutOfRangeException>(() => t2[1]);
}
public void AnonListEfficientIterator()
{
var li = new List <int> {
0
};
var ri1 = new AnonymousReadOnlyList <int>(() => li.Count, i => li[i]);
var ri2 = new AnonymousReadOnlyList <int>(() => li.Count, i => li[i], li);
using (var e1 = ri1.GetEnumerator()) {
using (var e2 = ri2.GetEnumerator()) {
e1.MoveNext().AssertIsTrue();
e2.MoveNext().AssertIsTrue();
li.Add(1);
TestUtil.AssertThrows <InvalidOperationException>(() => e2.MoveNext()); // list modified during iteration
e1.MoveNext().AssertIsTrue(); // not using list iterator
}
}
}
