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unit tcbucketlist;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, fpcunit, testutils, testregistry,
BucketList;
type
TMyBucketList = Class(TBucketList)
public
property BucketCount;
end;
PPtrInt= ^PtrInt;
{ TTestBucketList }
TTestBucketList= class(TTestCase)
Private
FList : TMyBucketList;
FData : Array[1..10] of PtrInt;
FPointers : Array[1..10] of PPtrInt;
procedure DoDuplicate;
Procedure AddPointers(ACount : Integer);
function GetCount: Integer;
protected
procedure SetUp; override;
procedure TearDown; override;
published
procedure TestCreate;
procedure TestAdd;
procedure TestAdd2;
procedure TestAddDuplicate;
procedure TestDelete;
procedure TestDelete2;
procedure TestClear;
end;
implementation
Type
{ TCounter }
TCounter = Class(TObject)
private
FCount: Integer;
Public
procedure CountItems(AItem, AData: Pointer; out AContinue: Boolean);
Property Count : Integer Read FCount;
end;
procedure TCounter.CountItems(AItem, AData: Pointer; out AContinue: Boolean);
begin
Inc(FCount);
end;
procedure TTestBucketList.TestAdd;
Var
P : POinter;
begin
P:=FList.add(FPointers[1],Pointer(FData[1]));
AssertSame('Add returns data pointer',P,Pointer(FData[1]));
AssertEquals('Item count is 1',1,GetCount);
end;
procedure TTestBucketList.TestAdd2;
begin
AddPointers(2);
With TCounter.Create do
try
FList.ForEach(@CountItems);
AssertEquals('Item count is 1',2,Count);
Finally
Free;
end;
end;
procedure TTestBucketList.DoDuplicate;
begin
AddPointers(1);
end;
Function TTestBucketList.GetCount : Integer;
begin
With TCounter.Create do
try
FList.ForEach(@CountItems);
Result:=Count;
Finally
Free;
end;
end;
procedure TTestBucketList.AddPointers(ACount: Integer);
Var
I : Integer;
begin
For I:=1 to ACount do
FList.Add(FPointers[I],Pointer(FData[i]));
end;
procedure TTestBucketList.TestAddDuplicate;
begin
AddPointers(1);
self.AssertException('Adding duplicate raises exception',EListError,@DoDuplicate);
end;
procedure TTestBucketList.TestDelete;
begin
AddPointers(3);
FList.Remove(FPointers[3]);
AssertEquals('Deleted no longer exists',False,Flist.Exists(FPointers[3]));
AssertEquals('Remaining 2 exists',True,Flist.Exists(FPointers[2]));
AssertEquals('Remaining 1 exists',True,Flist.Exists(FPointers[1]));
end;
procedure TTestBucketList.TestDelete2;
begin
AddPointers(3);
FList.Remove(FPointers[3]);
AssertEquals('Count after delete is 2',2,GetCount);
FList.Remove(FPointers[2]);
AssertEquals('Count after delete is 2',1,GetCount);
FList.Remove(FPointers[1]);
AssertEquals('Count after delete is 2',0,GetCount);
end;
procedure TTestBucketList.TestClear;
begin
AddPointers(10);
FList.Clear;
AssertEquals('Count after Clear is 0',0,GetCount);
end;
procedure TTestBucketList.TestCreate;
begin
AssertEquals('Count should be 64',64,Flist.BucketCount);
AssertEquals('Item count is 0',0,GetCount);
end;
procedure TTestBucketList.SetUp;
Var
I : integer;
begin
FList:=TMyBucketList.create(bl64);
For I:=1 to 10 do
begin
FData[i]:=I;
FPointers[i]:=@FData[i];
end;
end;
procedure TTestBucketList.TearDown;
begin
FreeAndNil(FList);
end;
initialization
RegisterTest(TTestBucketList);
end.
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