PHP TDD

We can use SimpleTest to write program  in TDD style.
0. Download SimpleTest.
1. Add the unit testing and report file.
2. Subclass the UnitTestCase
3. Write the function to do the unit testing.
4. Run the test.


Example:
<?php
require_once('simpletest/unit_tester.php');
require_once('simpletest/reporter.php');

require_once "Location.php"; // class to test

class MyTestingClass extends UnitTestCase
{
    /*
     * Test distance calculation function in Location class.
     */
    function TestCalculateDistance()
    {
      $point1 = array('x'=>0, 'y'=>0);
      $point2 = array('x'=>10, 'y'=>10);
   
      $distance = number_format(14.142135623731, 2, '.', '');
      $location = new Location();
      $retDistance = $location->calculateDistance($point1, $point2); // Function in Location class
      $retDistance = number_format($retDistance, 2, '.', '');
      $this->assertEqual($distance, $retDistance); // return true if distance is calculated correctly
    }
}
$test = new TestLocation();
$test->run(new HtmlReporter()); // run the test
?>

Python TDD tool and tutorial

This site has video tutorial on how to start Test Driven Development (TDD) using python and PYTDDMON. It's a good tutorial to start TDD.