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phpunit - main program example
Testing your PHP example from a Well House Consultants training course
More on Testing your PHP [link]

This example is described in the following article(s):
   • Testing classes for your PHP website with PHPUnit - [link]

Source code: five.php Module: H311
<?php

include("oo3.php");

/* This is a test harness to exercise the oo3.php file / module which
includes the definition of a person object, and a runner object which
interits from it */


class MyTest extends PHPUnit_Framework_TestCase

{

# The setUp function is run before each test to produce data that's going
# to be used across the tests - in some ways like a constructor. You can
# also write a tearDown which is the equivalent of a destructor.

public function setUp() {
        global $john;
        $john = person::factory("23,1.76,76,John Smith");
        }

# All functions called test{SOMETHING} are run, and in each you'll
# make assertions of the results that are expected

public function testAgain(){
    global $john;
    $bmi = $john->getbmi();
    $this->assertEquals($bmi,24.54);
}

/* Sometimes, you won't be able to run consistent testing - if (for
example) your code calls up a web service which produces variable
results, or you want to test the failure of a backend. There are also
times that you want to work out / exercise tests before the whole class
you're testing is completed. These are examples of where you might use
mock objects. */


# Mock object - mimics behaviour of real object
# Use these if no network available / resource always changes

public function testSomething(){

         $mime = $this->getMock('person',
                        array('getbmi'),
                        array("Bob",44,1.76,88));

         $mime->expects($this->any())
                ->method('getbmi')
                ->will($this->returnValue(23.55));

# Perhaps pass mock object into another object to be tested?
# Try address / postcode example for next time?

         $this->assertEquals(23.55,$mime->getbmi());
         $this->assertEquals('Bobby',$mime->getname());

        }

public function testLonger() {

        $john = person::factory("23,1.76,76,John Smith");
        $sylvia = person::factory("24,1.72,59,Sylvia Brown,100,12.5");

        $team = array($john, $sylvia);

        foreach ($team as $member) {
                $bmi = $member->getbmi();
                $name = $member->getname();
                $speed = $member->getspeed();
                $high = $member->getheight();

        # Asserts here
        # Note - code coverage checks that it's RUN and not that it's WORKED RIGHT

        }

        }

}

?>
Learn about this subject
This module and example are covered on the following public courses:
 * PHP Programming
 * Learning to program in PHP
Also available on on site courses for larger groups

Books covering this topic
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Other Examples
This example comes from our "Testing your PHP" training module. You'll find a description of the topic and some other closely related examples on the "Testing your PHP" module index page.

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