how server environment affect testing code example

Example: how server environment affect testing

Client/server applications can be quite complex
due to the multiple dependencies among clients,
data communications, hardware, and servers. 
Thus testing requirements can be extensive.
When time is limited (as it usually is)
the focus should be on integration and
system testing. Additionally,
load/stress/performance testing may be
useful in determining client/server application
limitations and capabilities.
There are commercial tools to assist with such testing