QA/Testing
...said no one ever
What is Quality?
What is Quality?
- A product doesn't have any bugs?
- # open issues weighted for priority / # closed issues weighted for priority?
- Company processes/methods must meet a specific standard (ex. ISO 9000)?
- But does a piece of software have quality if a team follows a rigid set of processes, tests it thoroughly to make sure it has no bugs, but then on release nobody wants to use it, or it fails to a competitor?
Testing
- Prevent regressions
- Unit tests
- Continuous integration
- User/customer testing
- A/B tests
- Usability testing
- Find new bugs
- Functional testing
- Exploratory testing
- Black/Gray/White box testing
- Performance testing
- White hat hacking
Testing
- Prevent regressions
- Unit tests
- Continuous integration
- User/customer testing
- A/B tests
- Usability testing
- Find new bugs
- Functional testing
- Exploratory testing
- Black/Gray/White box testing
- Performance testing
- White hat hacking
Software QA Testing
Confirm that the product works as expected
Then break it
How to break software
- Permute inputs and outputs
- Orthogonal array techniques help reduce redundancy and help testers find bugs sooner
- Act in bad faith
- Don't assume users are going to do the right thing
- Hacking, malicious inputs