Testing

Software Testing

intention 1

show a program does what it is intended to do

intention 2

discover program defects before it is put into use

verification 1

are we building the product right

verification 2

the software should conform to its spec

validation 1

are we building the right product?

validation 2

the software should do what the user requires

software inspections

concerned with analysis of the static system representation to discover problems (static)

software testing

concerned with exercising and observing product behaviour (dynamic)

advantage of inspections over testing 1

in testing, some errors can mask others

advantage of inspections over testing 2

specialised test harnesses are required to test incomplete software

advantage of inspections over testing 3

testing is not suitable for determining certain quality attributes

disadvantage of inspections over testing 1

inspections are not suitable for finding errors due to unexpected interactions between parts of a system or timing issues

disadvantage of inspections over testing 2

small companies or teams may not be able to find an independent inspection team

development testing

system is tested during dev to discover bugs and defects

release testing

a separate testing team tests a complete version of the system before it is released

production testing

system is tested after deployment

functional testing

unit, component, interface, integration

non-functional testing

performance, security, usability

agile testing best practice 1

continuous testing and feedback

agile testing best practice 2

involvement of whole team

agile testing best practice 3

test-driven development