April 05
Prof. Ismael H. F. Santos
- ismael@tecgraf.puc-rio.br
2
When is JUnit
appropriate?
nAs the name implies…
nfor unit testing of small amounts of
code
nOn its own, it is not intended for complex
testing, system
testing, etc.
nIn the test-driven development methodology, a
JUnit test should
be written first (before any code), and executed.
nThen, implementation code should be written
that would be the
minimum code required to get the test to pass – and no extra functionality.
nOnce the code is written, re-execute the test
and it should
pass.
nEvery time new code is added, re-execute all
tests again to be
sure nothing gets broken.