How to test Procedural code using "PHPUnit" Framework?

[dhillarun]

Hi All,

I have written some PHPUnit test code by using classes.
test.php

 
<?php
require_once('PHPUnit/Framework.php');
include("hello.php");
 class Test1 extends  PHPUnit_Framework_TestCase
 {
				
		function testAdd() {
			$a=3;
			$b=6;
			 $r=add($a,$b);
			$this->assertNotNull($r);
			$this->assertEquals($r,9);
			$this->assertTrue($r>0);
		}
}
?>

hello.php

 
<?php
  function add($a,$b)
 {
	  return ($a+$b);
}
?>

Here I am able to test whether the function is returning the expected value for the given input paramaters or not.

But, How to test the code inside the function "add()".

I mean, the testing should be done to the php code (for example:- for loops, if conditions etc.) present inside the "add()" function body.

Pl. do reply me.