[DUnit-interest] TestTextRunner memory leaks

[Веселин Г. <us...@ab...>]

Hi,

I am using DUnit 9.3.0 for a legacy Delphi 7 application. I use primarily TextTestRunner to run the tests. I also use FastMM4 and I noticed memory leaks. These leaks do not happen when I use GUITestRunner. 
I am not sure if this is due to a bug in DUnit or maybe it is some configuration problem.

To reproduce this behavior I created a very simple Delphi 7 project with just one unit:

program FFLeak;

{$APPTYPE CONSOLE}

uses
  FastMM4,
  TestFramework,
  TextTestRunner,
  uBasicTest in 'uBasicTest.pas';

begin
  TextTestRunner.RunTest(TBasicTest.Suite);
end.

{****}

unit uBasicTest;

interface

uses
  TestFramework;

type
  TBasicTest = class (TTestCase)
  published
    procedure BasicTestProc;
  end;

implementation

{ TBasicTest }

procedure TBasicTest.BasicTestProc;
begin
  // dummy procedure
end;

end.


When I run this program, FastMM reports the following:

This application has leaked memory. The small block leaks are (excluding expected leaks registered by pointer):

13 - 20 bytes: TStatusToResultAdapter x 1, TList x 4, TInterfaceList x 2, AnsiString x 1, Unknown x 2
21 - 36 bytes: TThreadList x 2, AnsiString x 1
37 - 52 bytes: TTextTestListener x 1
53 - 68 bytes: TTestResult x 1
85 - 100 bytes: TTestSuite x 1
101 - 116 bytes: TBasicTest x 1

What can be the reason for this? Where should  I look for a problem? Or is it a known behavior?
It doesn't seem to be a problem with how FastMM is configured, because I also ran my tests without it and I could see the test program indeed started to consume more and more memory.