DUnit: How to run tests?

Question

How do i run TestCase's from the IDE?

i created a new project, with a single, simple, form:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
  private
  public
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

end.

Now i'll add a test case to check that pushing Button1 does what it should:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
     Button1: TButton;
     procedure Button1Click(Sender: TObject);
  private
  public
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

uses
    TestFramework;

type
  TForm1Tests = class(TTestCase)
  private
        f: TForm1;
  protected
     procedure SetUp; override;
     procedure TearDown; override;
  published
     procedure TestButton1Click;
  end;

procedure TForm1.Button1Click(Sender: TObject);
begin
    //todo
end;

{ TForm1Tests }

procedure TForm1Tests.SetUp;
begin
  inherited;

    f := TForm1.Create(nil);
end;

procedure TForm1Tests.TearDown;
begin
    f.Free;
  inherited;
end;

procedure TForm1Tests.TestButton1Click;
begin
    f.Button1Click(nil);
    Self.CheckEqualsString('Hello, world!', f.Caption);
end;

end.

Given what i've done (test code in the GUI project), how do i now trigger a run of the tests? If i push F9 then the form simply appears:

Ideally there would be a button, or menu option, in the IDE saying Run DUnit Tests:

Am i living in a dream-world? A fantasy land, living in a gumdrop house on lollipop lane?

As an aside, you'll find that your business logic is easier to unit test if you separate it out into classes, rather than trying to unit test your UI event handlers directly. — Incredulous Monk
@Monk: The downside of that is that i have code spread across multiple classes, or worse multiple files. — Ian Boyd

Brian Frost Brian Frost · Accepted Answer · 2010-03-22T16:22:16

I agree with Uwe Raabe, but sometimes it can be useful to have a 'hidden' link within your app to run the DUnit GUI. I use:

TGUITestRunner.runRegisteredTests;

Call this from your button at the DUnit GUI will open for you to manually run and view test output.

For example, if you hold down a special key combination when opening the software's own "Control Panel", you get some advanced entries:

enter image description here

DUnit: How to run tests?

3 Answers