public bool IndexFindProp(int el, List <int> xs)
{
FSharpFunc <int, bool> predFs = (Converter <int, bool>)(e => el == e);
var funcsIdxL = new Func <int, List <int>, int>[] { Seqops.IndexOfLp,
(el1, xs1) => SequenceopsFs.findIndexSeqI(predFs, xs1) };
var funcsFndL = new Func <int, List <int>, int>[] { Seqops.FindLp };
var funcsIdxA = new Func <int, int[], int>[] { SeqopsArr.IndexOfLp };
var funcsFndA = new Func <int, int[], int>[] { SeqopsArr.FindLp };
var ansIdx = xs.IndexOf(el);
var ansFnd = xs.Find(e => el == e);
return(funcsIdxL.Aggregate(true, (acc, f) => acc &&
ansIdx == f(el, xs)) && funcsFndL.Aggregate(true, (acc, f) =>
acc && ansFnd == f(el, xs)) && funcsIdxA.Aggregate(true, (acc, f) => acc &&
ansIdx == f(el, xs.ToArray())) && funcsFndA.Aggregate(true, (acc, f) =>
acc && ansFnd == f(el, xs.ToArray())));
}
public void IndexFindTest()
{
int el = 3;
FSharpFunc <int, bool> predFs = (Converter <int, bool>)(e => el == e);
var funcsIdxL = new Func <int, List <int>, int>[] { Seqops.IndexOfLp,
(el1, xs) => SequenceopsFs.findIndexSeqI(predFs, xs) };
var funcsFndL = new Func <int, List <int>, int>[] { Seqops.FindLp };
var funcsIdxA = new Func <int, int[], int>[] { SeqopsArr.IndexOfLp };
var funcsFndA = new Func <int, int[], int>[] { SeqopsArr.FindLp };
int n = 5;
List <int>[] lsts = { Enumerable.Range(0, n).ToList(),
Enumerable.Range(0, n).Reverse().ToList() };
foreach (var lst in lsts)
{
foreach (var f in funcsIdxL)
{
Assert.AreEqual(lst.IndexOf(el), f(el, lst), "IndexOfTestL");
}
foreach (var f in funcsFndL)
{
Assert.AreEqual(lst.Find(e => el == e), f(el, lst),
"FindTestL");
}
foreach (var f in funcsIdxA)
{
Assert.AreEqual(lst.IndexOf(el), f(el, lst.ToArray()), "IndexOfTestA");
}
foreach (var f in funcsFndA)
{
Assert.AreEqual(lst.Find(e => el == e), f(el, lst.ToArray()),
"FindTestA");
}
}
}