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Original Message
From: Active_TTCN3 : MTS STF133 TTCN Version 3 - Active Members Only
[
This email address is being protected from spambots. You need JavaScript enabled to view it.]On Behalf Of Mariusz Kupiec
Sent: Thursday, December 19, 2002 12:40 PM
To:
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Subject: Error verdict in 'execute' operation due to timeout
Hi,
Expiration of timer guarding 'execute' operation causes test case verdict
to be set to value 'error'. Usually 'error' value of test case verdict is
reserved for runtime errors in a test system due to execution of a test
suite /overflow, unassigned memory, system limitation, etc./, which causes
impossible to perform test scenario correctly.
I am a little bit convinced that expiration of timer guarding 'execute'
operation should produce verdict "fail" cause of:
- no test system error happens while test case execution,
- 'execute' timer is yet another guard /supporting timers usually used
inside testcase to guard testcase execution in a finite time/,
Receiving a verdict issued due to timeout usually:
- does not lead to asumption that test system have errors,
- requires verification af all guarding times inside test suite according
proper IUT behaviour to diagnose if a testcase or an IUT is a reason of
failure.
I do not expect more reasons for 'execute' timeout occurence like:
- implementation is correct, test case was not carefully protected inside
by timers and system timer value is too short,
- implementation is incorrect, test case was not carefully protected
inside by timers and system timer value is correct.
The second is an obvious reason for fail verdict, the first is an error in
code design, but possibility of correct testcase execution was fulfilled in
both cases.
BR,
Mariusz Kupiec
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