Unit testing like a pirate #wceu 2013

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UNIT TESTING
likea
cPirate
WordCamp Europe 2013
with
pirate dunbar
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
YES,
I am a Pirate.
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
nAPP Platform
WordPress as a
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
nAPP Platform
WordPress as a
Video chat marketplace
for experts to monetize...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
nAPP Platform
WordPress as a
“I think WordPress is going in a
direction tha...

“Plugins represent the
heartbeat of
WordPress.”
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Saturday, October 5, 13

• sdsdsd
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
“The result is that a lot of the
plugins are written in poor code
...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Manual Testing
Saturday, October 5, 13

• sdsdsd
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Problems of manual testing
1. Ad-hoc ☹
Saturday, October 5, 13

• sdsdsd
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Problems of manual testing
1. Ad-hoc ☹
2. Slow & Error Prone ☹
Sat...

• sdsdsd
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Problems of manual testing
1. Ad-hoc ☹
2. Slow & Error Prone ☹
3. ...

• sdsdsd
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what we need
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what we need
• Fast & Instant feedback
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what we need
• Fast & Instant feedback
• Reusable and organized
Saturday, O...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what we need
• Fast & Instant feedback
• Reusable and organized
• Verify th...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Saturday, October 5, 13

Unit Testing Series
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Saturday, October 5, 13

Unit Testing Series
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
1. Unit Testing like a Pirate
2. Buccaneering the high ...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is unit testing
“An automated piece of code that
invokes your applicat...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is unit testing
“Separating
the application
design &
implementation
pr...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is PHPUNIT
“A command line
tool that runs
unit tests &
reports their
r...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is PHPUNIT
$>phpunit
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is PHPUNIT
Time: 1 sec, Memory: 8.75Mb
OK (200 tests, 355 assertions)
...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is PHPUNIT
There was 1 failure:
1) WPSkeletonPluginTestAutoloadTest::t...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is PHPUNIT
Test Case
a set of conditions or
variables that you set
up ...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
what is PHPUNIT
Test SUITE
A collection of test cases.
Saturday, October 5,...

$<?php class SubscriptionTest extends PHPUnit_Framework_TestCase { // test cases ... public function testHasAccessWithPassD...$

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Assertions
“a way of explicitly checking the
assumptions that your code
mak...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
n• $this->assertTrue();
• $this->assertEquals();
• $this->assertContains();...

“How do I actually write
out the test cases?”
UNIT TESTING like A PIRATE — @ptahdunbar #wceu
http://www.ﬂickr.com/photos/m...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Anatomy of a test case
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Anatomy of a test case
1. a
2. A
3. A
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Anatomy of a test case
1. A
2. A
3. Assert(check for the expected value)
Sa...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Anatomy of a test case
1. A
2. Act(call the method/trigger the action)
3. A...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Anatomy of a test case
1. arrange (the context)
2. Act(call the method/trig...

$<?php class CalculatorTest extends PHPUnit_Framework_TestCase { // test cases ... public function testAddReturnsSumOfTwoPo...$

$<?php class CalculatorTest extends PHPUnit_Framework_TestCase { // test cases ... public function testAddReturnsSumOfTwoPo...$

$<?php class CalculatorTest extends PHPUnit_Framework_TestCase { // test cases ... public function testAddReturnsSumOfTwoPo...$

$<?php class CalculatorTest extends PHPUnit_Framework_TestCase { // test cases ... public function testAddReturnsSumOfTwoPo...$

$<?php class CalculatorTest extends PHPUnit_Framework_TestCase { // test cases ... public function testAddReturnsSumOfTwoPo...$

$<?php class CalculatorTest extends PHPUnit_Framework_TestCase { // test cases ... public function testAddReturnsSumOfTwoPo...$

$<?php class LiveNinjaCacheTest extends PHPUnit_Framework_TestCase { // test cases ... public function testSetWithNewDataPe...$

$<?php class LiveNinjaCacheTest extends PHPUnit_Framework_TestCase { // test cases ... public function testSetWithNewDataPe...$

$<?php class LiveNinjaCacheTest extends PHPUnit_Framework_TestCase { // test cases ... public function testSetWithNewDataPe...$

$<?php class LiveNinjaCacheTest extends PHPUnit_Framework_TestCase { // test cases ... public function testSetWithNewDataPe...$

$<?php class LiveNinjaCacheTest extends PHPUnit_Framework_TestCase { // test cases ... public function testSetWithNewDataPe...$

$<?php class LiveNinjaCacheTest extends PHPUnit_Framework_TestCase { // test cases ... public function testSetWithNewDataPe...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testPersistReturnsWPErr...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testPersistReturnsWPErr...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testPersistReturnsWPErr...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testPersistReturnsWPErr...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testPersistReturnsWPErr...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testPersistReturnsWPErr...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testGetNinjasWithBlackB...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testGetNinjasWithBlackB...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testGetNinjasWithBlackB...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testGetNinjasWithBlackB...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testGetNinjasWithBlackB...$

$<?php class UserServiceTest extends PHPUnit_Framework_TestCase { // test cases ... public function testGetNinjasWithBlackB...$

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
nWAYS TO TEST CODE
• test if/else conditionals
• test all cases in switch
•...

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
nWAYS TO kickstart your brain
• write out list of requirements for
each fea...

cwp skeleton plugin
https://github.com/ptahdunbar/wp-skeleton-plugin/
Saturday, October 5, 13

UNIT TESTING like A PIRATE — @ptahdunbar #wceu
Thank you!
Slides - http://ptahdunbar.com/
cPirate Dunbar
Saturday, October...