The Mad Science of Testing

June 17, 2015

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The Mad Science of Testing

Talk given to PHP Berkshire in June 2015.

Stuart Herbert

June 17, 2015

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Transcript

Stuart Herbert ~ @stuherbert Founder @ganbarodigital Have Fun When Testing!
Mad Science of Testing
@stuherbert Testing Is Boring Right? Mad Science of Testing
@stuherbert Your Testing? How Does That Affect The Quality Of
Mad Science of Testing
@stuherbert Testing Is Boring Right? Mad Science of Testing
@stuherbert You Look At It That Depends On How Mad
Science of Testing
@stuherbert Testing Is Science Mad Science of Testing
@stuherbert Experiment Design • Form a hypothesis • Determine required
pre-conditions • Execute steps • Observe changes • Draw conclusions Mad Science of Testing
@stuherbert Experiment Design • Form a hypothesis • Determine required
pre-conditions • Execute steps • Observe changes • Draw conclusions Mad Science of Testing
@stuherbert Experiment Design • Form a hypothesis • Determine required
pre-conditions • Execute steps • Observe changes • Draw conclusions Mad Science of Testing
@stuherbert Experiment Design • Form a hypothesis • Determine required
pre-conditions • Execute steps • Observe changes • Draw conclusions Mad Science of Testing
@stuherbert Experiment Design • Form a hypothesis • Determine required
pre-conditions • Execute steps • Observe changes • Draw conclusions Mad Science of Testing
@stuherbert Test Design • Given a requirement to prove •
Determine test data to use, system state before test starts • Execute code • Check return values, persistent data • Test pass / fail Mad Science of Testing
@stuherbert Test Design • Given a requirement to prove •
Determine test data to use, system state before test starts • Execute code • Check return values, persistent data • Test pass / fail Mad Science of Testing
@stuherbert Test Design • Given a requirement to prove •
Determine test data to use, system state before test starts • Execute code • Check return values, persistent data • Test pass / fail Mad Science of Testing
@stuherbert Test Design • Given a requirement to prove •
Determine test data to use, system state before test starts • Execute code • Check return values, persistent data • Test pass / fail Mad Science of Testing
@stuherbert Test Design • Given a requirement to prove •
Determine test data to use, system state before test starts • Execute code • Check return values, persistent data • Test pass / fail Mad Science of Testing
@stuherbert Testing Is Science Good Tests Are Also Good Science
Mad Science of Testing
@stuherbert Mad Science So Let’s Do Mad Science of Testing
@stuherbert Mad Science? Why Do Mad Science of Testing
@stuherbert All The Fun! Mad Scientists Have Mad Science of
Testing
@stuherbert No-one Else Does They Also Do The Things Mad
Science of Testing
@stuherbert Be A Mad Scientist https://ﬂic.kr/p/9s1bQn Mad Science of Testing
@stuherbert … With A Computer! https://ﬂic.kr/p/cwK7UN Mad Science of Testing
@stuherbert Mad Scientist Need? What Does A Mad Science of
Testing
@stuherbert Mad Scientist Needs • Somewhere to do mad science
• Something to experiment on • Something crazy to attempt • A sidekick to do all the heavy lifting Mad Science of Testing
@stuherbert Mad Scientist Needs • Somewhere to do mad science
• Something to experiment on • Something crazy to attempt • A sidekick to do all the heavy lifting Mad Science of Testing
@stuherbert Mad Scientist Needs • Somewhere to do mad science
• Something to experiment on • Something crazy to attempt • A sidekick to do all the heavy lifting Mad Science of Testing
@stuherbert Mad Scientist Needs • Somewhere to do mad science
• Something to experiment on • Something crazy to attempt • A sidekick to do all the heavy lifting Mad Science of Testing
@stuherbert Software Testing That Sounds Just Like Mad Science of
Testing
@stuherbert Software Tester Needs • Somewhere to test • Something
to test • A requirement to prove • Automation tools Mad Science of Testing
@stuherbert Software Tester Needs • Somewhere to test • Something
to test • A requirement to prove • Automation tools Mad Science of Testing
@stuherbert Software Tester Needs • Somewhere to test • Something
to test • A requirement to prove • Automation tools Mad Science of Testing
@stuherbert Software Tester Needs • Somewhere to test • Something
to test • A requirement to prove • Automation tools Mad Science of Testing
@stuherbert In Detail Let’s Break That Down Mad Science of
Testing
@stuherbert Laboratory Every Mad Scientist Has Their Own Mad Science
of Testing
@stuherbert The Laboratory https://ﬂic.kr/p/ee83br Mad Science of Testing
@stuherbert The Laboratory • Built for mad science only •
Full of crazy stuff • Built out of recycled junk • Often deadly to innocent trespassers! Mad Science of Testing
@stuherbert The Laboratory • Built for mad science only •
Full of crazy stuff • Built out of recycled junk • Often deadly to innocent trespassers! Mad Science of Testing
@stuherbert The Laboratory • Built for mad science only •
Full of crazy stuff • Built out of recycled junk • Often deadly to innocent trespassers! Mad Science of Testing
@stuherbert The Laboratory • Built for mad science only •
Full of crazy stuff • Built out of recycled junk • Often deadly to innocent trespassers! Mad Science of Testing
@stuherbert Test Environment Every Tester Needs A Mad Science of
Testing
@stuherbert Test Environments • Purpose built • Full of things
unique for testing • Running on hand-me-down kit :( • Should be deadly to bad code Mad Science of Testing
@stuherbert Test Environments • Purpose built • Full of things
unique for testing • Running on hand-me-down kit :( • Should be deadly to bad code Mad Science of Testing
@stuherbert Test Environments • Purpose built • Full of things
unique for testing • Running on hand-me-down kit :( • Should be deadly to bad code Mad Science of Testing
@stuherbert Test Environments • Purpose built • Full of things
unique for testing • Running on hand-me-down kit :( • Should be deadly to bad code Mad Science of Testing
@stuherbert Your Laboratory Make Your Test Environment Mad Science of
Testing
@stuherbert A Test Subject Mad Scientists Always Need Mad Science
of Testing
@stuherbert Everything Is A Potential Test Subject Mad Science of
Testing
@stuherbert Everything Is Something For You To Test Mad Science
of Testing
@stuherbert Nothing Should Be Off-Limits Mad Science of Testing
@stuherbert Crazy Stuff Mad Scientists Only Do Mad Science of
Testing
@stuherbert Crazy Stuff • Reanimation • Death rays • Time
travel • Crazy hybrids Mad Science of Testing
@stuherbert Suspended Animation https://ﬂic.kr/p/tW5MQu Mad Science of Testing
@stuherbert Crazy Stuff • Reanimation • Death rays • Time
travel • Crazy hybrids Mad Science of Testing
@stuherbert Destroy All The Things! https://ﬂic.kr/p/eeZcZ6 Mad Science of Testing
@stuherbert Crazy Stuff • Reanimation • Death rays • Time
travel • Crazy hybrids Mad Science of Testing
@stuherbert Crazy Stuff • Reanimation • Death rays • Time
travel • Crazy hybrids Mad Science of Testing
@stuherbert Crazy Hybrids https://ﬂic.kr/p/8sG3Lo Mad Science of Testing
@stuherbert Test Activities Aren’t So Far Removed Mad Science of
Testing
@stuherbert Test Activities • Repeatable testing • Robustness tests •
Reproduce reported faults • Test things together Mad Science of Testing
@stuherbert Test Activities • Repeatable testing • Robustness tests •
Reproduce reported faults • Test things together Mad Science of Testing
@stuherbert Test Activities • Repeatable testing • Robustness tests •
Reproduce reported faults • Test things together Mad Science of Testing
@stuherbert Test Activities • Repeatable testing • Robustness tests •
Reproduce reported faults • Test things together Mad Science of Testing
@stuherbert Have Not Done Do The Tests That Others Mad
Science of Testing
@stuherbert Differently See The World Mad Science of Testing
@stuherbert Go Places No-one Else Has Gone Before Mad Science
of Testing
@stuherbert Strange New World https://ﬂic.kr/p/hk7FS Mad Science of Testing
@stuherbert Already Been Don’t Go Where Everyone Else Has Mad
Science of Testing
@stuherbert New Frontier Find A Mad Science of Testing
@stuherbert Head Into Space https://ﬂic.kr/p/6qrkpx Mad Science of Testing
@stuherbert Sidekick Every Mad Scientist Has A Mad Science of
Testing
@stuherbert Robot Companions Are All The Rage :) Mad Science
of Testing
@stuherbert Robot Companion? Do You Have A Mad Science of
Testing
@stuherbert What We Want https://ﬂic.kr/p/7mhEH2 Mad Science of Testing
@stuherbert These Will Do https://ﬂic.kr/p/8RT4F4 Mad Science of Testing
@stuherbert What We Have https://ﬂic.kr/p/4ivYkw Mad Science of Testing
@stuherbert Automation Tools Our Sidekicks Are Our Mad Science
@stuherbert Automation! • Repeatable heavy lifting • Upfront effort required
• Build your own • Make it run your laboratory Mad Science of Testing
@stuherbert Automation! • Repeatable heavy lifting • Upfront effort required
• Build your own • Make it run your laboratory Mad Science of Testing
@stuherbert Automation! • Repeatable heavy lifting • Upfront effort required
• Build your own • Make it run your laboratory Mad Science of Testing
@stuherbert Automation! • Repeatable heavy lifting • Upfront effort required
• Build your own • Make it run your laboratory Mad Science of Testing
@stuherbert Scale Your Testing Use Automation To Mad Science of
Testing
@stuherbert Mad Science That’s A Brief Insight Into Mad Science
of Testing
@stuherbert Why? Mad Science of Testing
@stuherbert Serious Point There Is A Mad Science of Testing
@stuherbert Same Results Same Approach To Testing? Mad Science of
Testing
@stuherbert New Results Different Approach To Testing? Mad Science of
Testing
@stuherbert Beginner’s Mind Bring Your Mad Science of Testing
@stuherbert Expert’s Mind Avoid Falling Into Mad Science of Testing
@stuherbert Stay Curious View The World With A Child’s Eyes
Mad Science of Testing
@stuherbert Play https://ﬂic.kr/p/9C3sma Mad Science of Testing
@stuherbert Look https://ﬂic.kr/p/65dAGD Mad Science of Testing
@stuherbert Explore https://ﬂic.kr/p/7h3nR1 Mad Science of Testing
@stuherbert Experiment https://ﬂic.kr/p/iExLiE Mad Science of Testing
@stuherbert Be Brave https://ﬂic.kr/p/6Lfdtc Mad Science of Testing
@stuherbert Matters Because Software Testing Mad Science of Testing
@stuherbert Major Science https://ﬂic.kr/p/9S51Jx Mad Science of Testing
@stuherbert Win Contracts https://ﬂic.kr/p/7rzVde Mad Science of Testing
@stuherbert Reputation Mad Science of Testing
@stuherbert How You Feel About Testing Affects The Testing That
You Do Mad Science of Testing
@stuherbert Can Change The World The Testing That You Do
Mad Science of Testing
Stuart Herbert ~ @stuherbert Founder @ganbarodigital