* Test for slice

tests/webtbf/tw41068.pp

@@ -0,0 +1,41 @@
+program sl;
+{$mode objfpc}
+{$assertions on}
+{$WARN 5024 off : Parameter "$1" not used}
+uses
+  SysUtils, Classes;
+
+var
+  Source, DestP, DestF: TStringList;
+  i, StartIdx, EndIdx: Integer;
+
+
+begin
+  {$if declared(TMyStringsHelper)}
+  writeln('Using TMyStringsHelper class');
+  {$endif}
+  Source := TStringList.Create;
+  DestP := TStringList.Create;
+  try
+    for i := 0 to 19 do Source.Add(i.ToString);
+    StartIDx := 7;
+    EndIdx := 16;
+    Source.Slice(StartIdx, EndIdx, DestP);
+    TStrings(DestF) := Source.Slice(StartIdx, EndIdx);
+    Assert(DestP.Count = DestF.Count,Format('DestP.Count (%d) <> DestF.Count (%d)',[DestP.Count, DestF.Count]));
+    Assert(DestP.Count = EndIdx-StartIdx+1, Format('Dest.Count=%d, Expected: %d (%d-%d+1)',[DestP.Count,StartIdx-EndIdx+1,StartIdx,EndIdx]));
+    writeln('Dest.Count=',DestP.Count, ' [Ok]');
+    for i := 0 to DestP.Count-1 do
+    begin
+      Assert(DestP[i]=DestF[i],Format('Dest[%d] (%s) <> DestF[%d] (%s)',[i,DestP[i],i,DestF[i]]));
+      Assert((DestP[i] = (i + StartIdx).ToString),Format('Dest[%d]: Found %s, Expected: %s',[i,DestP[i],(i + StartIdx).ToString]));
+      writeln(i:2,': ',DestP[i]);
+    end;
+  finally
+    Source.Free;
+    DestP.Free;
+    DestF.Free;
+  end;
+  writeln('TStrings.Slice test: Ok');
+end.
+