Types of tests

What is the coverage of our tests?

in lines of code?

in number of test cases? 0%

For 100% test coverage, you just

need infinite resources!!!

We don't havethat!!!

do the most with

what you have

choose

Unit

Integration

Functional

Unit

Integration

Functional

Unit

Integration

Functional

Unit

Integration

Functional

Unit

Integration

Functional

imple

menta

tion co

st

fast

feedback

fragili

ty

runtim

e

precis

e feedback

robustn

ess

simplic

ity

cove

rage

Unit

Integration

Functional

● have the best cost benefit ratio● should be part of design and

development tasks● should run often● simulate interactions with other

components by the use of mocks● allow developers to simulate corner

cases

Unit

Integration

Functional

● exercise the integration between components

● can test sql queries ● take more time● first option when a dependency

can't be mocked● since dependencies have to be

provided, are expensive

Unit

Integration

Functional

● can't see the application● tests how an actor interacts with the

app○ it could be a person○ or another system

● corner cases should not be implemented at this level

● are great to show to a stakeholder

Unit

Integration

Functional

do the most with

what you have

Thank you!