Automated testing in Drupal

AUTOMATED TESTING IN DRUPAL

Artem Berdishev

What is SimpleTest?

• PHP Test Framework

• A way to create and run automated regression tests

• A functional testing environment: A pseudo-user

navigates in a pseudo-browser and checks the results.

• Manipulation (create user, drupalGet(), drupalPost())

• Assertions (assertText(), assertPattern(), etc.)

• A unit test class is also available, but the general

emphasis is on functional testing.

Why Automated Testing?

• Define exactly what the code should do

• Easy development

• Easy to refactor code

• Less debugging

• Less mistakes

• Document Bugs

• Prevent regressions

• Quality Assurance

• Better Software

Why Automated Testing?

• Once a test is written, it will likely be run many

many times

• Every time it is run, it verifies that the code is

still working

• If it catches even one bug, it has “paid for itself”

– high value

• Can be used to help reproduce problems

How To Install? • In Drupal 7, Simpletest is preinstalled.

• In Drupal 6, it must be installed as a contrib module and a patch must be applied to core - see the INSTALL.txt.

• Enable simpletest module on the modules page (or "drush en simpletest")

• Configure "verbose" mode at admin/build/testing/settings (on by default in D7)

• Check the status page for problems (admin/reports/status)

so… how does it works?

• .test files

• Contain test classes

• Test classes extend the SimpleTest class

• DrupalUnitTestCase

• DrupalWebTestCase

• Use Helper methods to:

• Simulate user actions

• Check behavior

Create the class and getInfo()

Create a setUp() for the test class

Create Test Methods

Test Results

API functions

• drupalGet($path, $options = array())

• drupalPost($path, $edit, $submit, array

$options = array(), array $headers = array())

• drupalCreateUser($permissions = NULL)

• drupalLogin($user = NULL)

• drupalLogout()

• randomString($number = 8)

• randomName($number = 8)

Assertions • assertTrue($result, $message = '', $group = 'Other')

• assertNull($value, $message = '', $group = 'Other')

• assertEqual($first, $second, $message = '', $group = 'Other')

• assertIdentical($first, $second, $message = '', $group= 'Other')

• assertPattern($pattern, $message = '', $group = 'Other')

• assertText($text, $message = '', $group = 'Other')

• assertTitle($title, $message = '', $group= 'Other')

• assertLink($label, $index = 0, $message = '', $group = 'Other')

• assertResponse($code, $message = '')

• pass($message = NULL, $group = 'Other')

• fail($message = NULL, $group = 'Other')

• verbose($message)

Resources

• http://drupal.org/simpletest

• http://groups.drupal.org/unit-testing

• The SimpleTest tutorial: drupal.org/simpletest-

tutorial-drupal7 (D7) or drupal.org/simpletest-

tutorial (D6)

• http://drupal.org/project/examples

AUTOMATED TESTING IN DRUPAL

Artem Berdishev email: [email protected]

skype: berdishev