public void AggregateReverseHistory ()
{
IEnumerable<int> s = new []{1, 2, 3, 4, 5};
Assert.AreEqual (
"5,1,-2,-4,-5",
s.AggregateReverseHistory ((a,b) => a - b).Implode (","));
Assert.AreEqual (
",5,54,543,5432,54321",
s.AggregateReverseHistory (new StringBuilder (), (a,b) => a.Append (b)).Implode (","));
Assert.AreEqual ("1",
new int[]{}.AggregateReverseHistory (1, (a,b) => a+b).Implode (","));
Assert.AreEqual (
"R,R5,R54,R543,R5432,R54321",
s.AggregateReverseHistory (new StringBuilder (),
(a,b) => a.Append (b),
a => "R" + a.ToString ()).Implode (","));
Assert.AreEqual ("1",
new int[]{}.AggregateReverseHistory (1, (a,b) => a+b, x => x).Implode (","));
}
public void AggregateReverseHistory_SSFR_FuncNull ()
{
IEnumerable<int> s = new[]{1};
Func<int,int,int> f = null;
Func<int,int> r = x => x;
s.AggregateReverseHistory (0, f, r);
}
public void AggregateReverseHistory_SSFR_ResultNull ()
{
IEnumerable<int> s = new[]{1};
Func<int,int,int> f = (a,b) => a-b;
Func<int,int> r = null;
s.AggregateReverseHistory (0, f, r);
}
public void AggregateReverseHistory_SF_FuncNull ()
{
IEnumerable<int> s = new[]{1};
Func<int,int,int> f = null;
s.AggregateReverseHistory (f);
}
