Testing javascript-fronttrends-2010

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Morgan Roderick

Technology Business

whoami
• Morgan Roderick, @mrgnrdrck
• Web developer
• First web page in 94, have used <blink>,
<marquee>, <font> ...
• Mostly freelancing since 2001
• Currently on contract with Nokia Gate5

• Why do we write code?
• Why should we write tests?
• Getting started with Unit Tests
Todays talk

Famous fails!
• 1985-1987 Therac 25 Medical accelerator, 5
patients dead, several injured
• 1994 Intel Pentium ﬂoating point division
bug (FDIV). $475M
• 1998 NASA space probe Mars Climate
Orbiter burns up in atmosphere. $327.6M.

Moar famous fails
• 2000 National Cancer Institute, Panama
City, radiation therapy planning software, 8
patients die, 20 severely injured
• ...
• 2010 Toyota recalls cars, est. $2B
• 2010 Twitter suffers XSS attack

Pick a test framework
DOH
JsUnit
QUnit
Crosscheck
J3Unit
JSNUnit
YUI Test
UnitTesting
Jasmine
screw-unit
Test.Simple
TestCase
JSTest
jsUnity
RhinoUnit
JasUnit
FireUnit
JsTestDriver
SinonJS

Testing PubSubJS
http://github.com/mroderick/PubSubJS

PubSubJS Requirements
• Subscribe to messages
• Publish messages
• Unsubscribe from messages

• http://github.com/mroderick/PubSubJS
• http://code.google.com/p/js-test-driver/
• http://cjohansen.no/sinon/

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Testing javascript-fronttrends-2010

1. Testing JavaScript Front Trends 2010

2. whoami • Morgan Roderick, @mrgnrdrck • Web developer • First web page in 94, have used <blink>, <marquee>, <font> ... • Mostly freelancing since 2001 • Currently on contract with Nokia Gate5

3. • Why do we write code? • Why should we write tests? • Getting started with Unit Tests Todays talk

4. Why do we write code?

5. Famous fails! • 1985-1987 Therac 25 Medical accelerator, 5 patients dead, several injured • 1994 Intel Pentium ﬂoating point division bug (FDIV). $475M • 1998 NASA space probe Mars Climate Orbiter burns up in atmosphere. $327.6M.

6. Moar famous fails • 2000 National Cancer Institute, Panama City, radiation therapy planning software, 8 patients die, 20 severely injured • ... • 2010 Toyota recalls cars, est. $2B • 2010 Twitter suffers XSS attack

7. Why should we test?

8. Pick a test framework DOH JsUnit QUnit Crosscheck J3Unit JSNUnit YUI Test UnitTesting Jasmine screw-unit Test.Simple TestCase JSTest jsUnity RhinoUnit JasUnit FireUnit JsTestDriver SinonJS

9. Pick a test framework DOH JsUnit QUnit Crosscheck J3Unit JSNUnit YUI Test UnitTesting Jasmine screw-unit Test.Simple TestCase JSTest jsUnity RhinoUnit JasUnit FireUnit JsTestDriver SinonJS

10. JsTestDriver TestCase

11. Testing PubSubJS http://github.com/mroderick/PubSubJS

12. PubSubJS Requirements • Subscribe to messages • Publish messages • Unsubscribe from messages

13. PubSubJS Overview

14. subscribe

16. unsubscribe

19. publish

21. test publish