Re: How to test a method which has void return type and no argument?

From:

mohit.khatri28@gmail.com

Newsgroups:

comp.lang.java.programmer

Date:

19 Apr 2007 03:39:09 -0700

Message-ID:

<1176979149.356826.255490@n76g2000hsh.googlegroups.com>

On Apr 18, 4:02 pm, "Ingo R. Homann" <ihomann_s...@web.de> wrote:

Hi,

mohit.khatr...@gmail.com wrote:

Hi All,

   I am using JUnit for testing java application under Eclipse IDE. I
have a method which has void return type and no arguments i.e.

void xyz()
{
     ..............

}

   Could anybody suggest me how do i test this type of method using
JUnit.

well, of course you can only test this kind of method, if it does
something that can be "seen" by the Program. e.g.:

void test() {
   MyObject o=new MyObject();
   assertEquals(o.getFoo(),"foo");
   o.setFooToBar();
   assertEquals(o.getFoo(),"bar");

}

If the method does *nothing* at all, it cannot be tested.

Of course, it may be possible that it is a bit more difficult than shown
above, to "read" the result. But that depends on your use-case.

Ciao,
Ingo

Hi,

   Thanks for your reply. I am facing still a problem. Suppose if i
have a method i.e.

class Menu_Bar
{

JMenuBar menubar = new JMenuBar();
JMenuItem File;
JFrame frame = new JFrame();

public Menu_Bar()
{
    this.CreateMenu();
    ...
    frame.setJMenuBar(menubar);
}

void CreateMenu()
{
     JMenu menuFile = new JMenu("File");
     ......

}
}

Now could you suggest me how do i test this method i.e. CreateMenu()
which has some local components.

Thanks & Regards
Mohit