Running Test Cases in Parallel

A concurrent, or multithreaded, script is one in which multiple statements can execute in parallel. Concurrency allows you to more effectively test distributed systems, by permitting multiple client applications to submit requests to a server simultaneously.

The 4Test language fully supports the development of concurrent scripts which enables a script to:

Create and coordinate multiple concurrent threads.
Protect access to variables, which are global to all threads.
Synchronize threads with semaphores.
Protect critical sections of code for atomic operations.
Recover from errors in the event of script deadlock.