Testing is not a @#$%! Bad Word
Overview
- Types of Testing
- Whats Important?
- How do we Mature?
Fun Facts
When did Testing and QA begin?
Food Tasting
Japanese Fugu
The deadly puffer fish
Weapons & Ammo
Rear Admiral Grace HopperÂ
& The Bug
Types of Testing
(in software development)
Unit Testing
Individual software components or modules. (A Unit of code)
(More on this later!)
Integration Testing
Points of connectivity between modules, applications, systems
Functional Testing
Black-box testing focused on the requirements of the task rather than the application/system itself
Smoke Testing
Simple set of important tasks to ensure no major failures
Security Testing
Ensuring no forms of hacking, external attacks, injections,
or otherwise are possible.
Briefly: Other Types of Testing
Load Testing
Usability Testing
Performance Testing
A/B Testing
Manual Testing
.... and so many more!
How to Test Code?
Writing Bad Unit Tests
- Unit Tests do not find bugs
- Unit tests do not test integrations to other components
- If you are writing a mock...
you are probably not testing what you think you are!
The Unit Testing Chimera
Writing Good Unit Tests
"It Depends"
Situation Vs. Goals
- Easy to Write
- Readable
- Reliable
- Fast
DiggingÂ
into the Technical Details
Test Things
that you don't want to change
- Varied Results? --> Refactor Time?
- Don't Micromange your tests! --> Maintenance Burden
- Test public guarantees --> Customer Contracts
Explicit Test Names
& Expected Patterns
test_all_the_things():
test_this_thing():
test_this_thing_with_rice():
test_this_similar_thing():
test_this_similar_thing():
test_this_similar_thing_with_rice():
Copy Pasta vs DRY
Don't Repeat Yourself:
!! can be dangerous to your testing effort !!
Well... Now What?
New Feature? New Test!
Create one test at a minimum for each new feature!
New Refactor? New Test!
Break functions into sizable chunks.
Building something New?
New test!
Test Driven Development
Test Driven Development
- Set goal for outcome
- Write the test first
- Build the code to the test's outcome
In Summary...
- Good Tests save you time, Bad Tests waste it
- Start off simple
- Remember the Puffer Fish
Questions?
Lets Write Some Code!
Testing is not a bad word
By chellygel
