RE: CppUnit and multi-threading

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Hi Baptiste,
Thank you for the prompt response.
I was trying to do (2) - a test suite with two threads. I'm work on a
socket application which acts both as a server and as a client. For this
purpose the test harness has to have a primary thread (from which the
client calls, like connect, send, recv and disconnect are made) and a
secondary thread for the listener (for calls like bind, listen, accept,
send and recv). I was hoping that I should be able to have only one
TestRunner and that CppUnit would handle under the hood the exceptions
that were thrown (via CPPUNIT_ASSERT and the like) from the secondary
thread. As this is not the case and because I am lazy enough not to rush
into creating a special mechanism for exception propagation between the
threads I used the following workaround:
I use named registries and a separate TestRunner for each thread. It
works fine. The only disadvantage is that two sets of results are
reported. But that's not a big deal.
Thanks again.
Regards,
Stefan
=20
-----Original Message-----
From: Baptiste Lepilleur [mailto:[email protected]]=20
Sent: Thursday, July 17, 2003 4:53 PM
To: Tzanev, Stefan; [email protected]
Subject: Re: [Cppunit-devel] CppUnit and multi-threading


TestFactoryRegistry is not thread-safe, but you can easily wrap it to
make it so.
=20
CppUnit is thread-safe, which the exception of the TypeInfoHelper which
use a static variable (but it should be initialized at when registering
the test factory, so it is probably ok).
=20
What exactly are you trying to multithread ?=20
1) running multiple test case at the same time, using multiple test
result ?
2) a test case which multiple thread ?
3) ???
=20
Baptiste.

----- Original Message -----=20
From: Tzanev, Stefan <mailto:[email protected]>=20=20
To: [email protected]=20
Sent: Tuesday, July 15, 2003 9:31 PM
Subject: [Cppunit-devel] CppUnit and multi-threading

Dear Sirs,
I'm using CppUnit for a first time and I have problems testing a
multithreaded system.
Should I create a separate TestFixture (suite) for each thread or is
there a=20
different approach? That is, does CppUnit support multi-threading?
Is it possible to use TestFactoryRegistry in a multi-threaded
environment?
Thank you.
Sincerely,
=20

Stefan Tzanev

Software Engineer

Software Applications Group

Respironics, Inc.
Phone: 724-387-4860
=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>Hi Baptiste,</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>Thank you for the prompt response.</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>I was trying to&nbsp;do (2) - a test suite with two threads. I'm w=
ork on=20
a socket application which acts both as a server and as a client. For this=
=20
purpose the test harness has to have a primary thread (from which the clien=
t=20
calls, like connect, send, recv and disconnect are made) and a secondary th=
read=20
for the listener (for calls like bind, listen, accept, send and recv). I wa=
s=20
hoping that I should be able to have only one TestRunner and that CppUnit w=
ould=20
handle under the hood the exceptions that were thrown (via CPPUNIT_ASSERT a=
nd=20
the like) from the secondary thread. As this is not the case and because I =
am=20
lazy enough not to rush into creating a special mechanism for exception=20
propagation between the threads I used the following=20
workaround:</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>I use named registries and a separate TestRunner for each thread. =
It=20
works fine. The only disadvantage is that two sets of results are reported.=
 But=20
that's not a big deal.</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>Thanks again.</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2>Stefan</FONT></SPAN></DIV>
<DIV><SPAN class=3D500165220-17072003><FONT face=3D"Courier New" color=3D#0=
000ff=20
size=3D2></FONT></SPAN>&nbsp;</DIV>
<DIV></DIV>
<DIV class=3DOutlookMessageHeader lang=3Den-us dir=3Dltr align=3Dleft><FONT=
 face=3DTahoma=20
size=3D2>-----Original Message-----<BR><B>From:</B> Baptiste Lepilleur=20
[mailto:[email protected]] <BR><B>Sent:</B> Thursday, July 17, 2003 4:53=20
PM<BR><B>To:</B> Tzanev, Stefan;=20
[email protected]<BR><B>Subject:</B> Re: [Cppunit-devel]=
=20
CppUnit and multi-threading<BR><BR></FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2>TestFactoryRegistry is not thread-=
safe, but=20
you can easily wrap it to make it so.</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>CppUnit is thread-safe, which the =
exception=20
of the TypeInfoHelper which use a static variable (but it should be initial=
ized=20
at when&nbsp;registering the test factory, so it is probably ok).</FONT></D=
IV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>What exactly are you trying to mul=
tithread=20
? </FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2>1) running multiple test case at t=
he same=20
time, using multiple test result ?</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2>2) a test case which multiple thre=
ad=20
?</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2>3) ???</FONT></DIV>
<DIV><FONT face=3D"Courier New" size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3D"Courier New" size=3D2>Baptiste.</FONT></DIV>
<BLOCKQUOTE=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LE=
FT: #000000 2px solid; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV=20
  style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>Fro=
m:</B>=20
  <A [email protected]=20
  href=3D"mailto:[email protected]">Tzanev, Stefan</A> </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A=20
  title=3Dcppunit-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org=20
  href=3D"mailto:[email protected]">[email protected]=
ourceforge.net</A>=20
  </DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, July 15, 2003 9:31=
=20
PM</DIV>
  <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [Cppunit-devel] CppUnit a=
nd=20
  multi-threading</DIV>
  <DIV><BR></DIV>
  <DIV><FONT face=3D"Courier New" size=3D2><SPAN class=3D571352116-15072003=
>Dear=20
  Sirs,</SPAN></FONT></DIV>
  <DIV><FONT face=3D"Courier New" size=3D2><SPAN class=3D571352116-15072003=
>I'm using=20
  CppUnit for a first time and I have problems testing a multithreaded=20
  system.</SPAN></FONT></DIV>
  <DIV><FONT face=3D"Courier New" size=3D2><SPAN class=3D571352116-15072003=
>Should I=20
  create a separate TestFixture (suite) for each thread or is there a=20
  </SPAN></FONT></DIV>
  <DIV><FONT face=3D"Courier New" size=3D2><SPAN class=3D571352116-15072003=
>different=20
  approach? That is, does CppUnit support multi-threading?</SPAN></FONT></D=
IV>
  <DIV><FONT face=3D"Courier New" size=3D2><SPAN class=3D571352116-15072003=
>Is it=20
  possible to use TestFactoryRegistry in a multi-threaded=20
  environment?</SPAN></FONT></DIV>
  <DIV><FONT face=3D"Courier New" size=3D2><SPAN class=3D571352116-15072003=
>Thank=20
  you.</SPAN></FONT></DIV>
  <DIV><SPAN class=3D571352116-15072003><FONT face=3D"Courier New"=20
  size=3D2>Sincerely,</FONT></SPAN></DIV>
  <DIV><SPAN class=3D571352116-15072003><FONT face=3D"Courier New"=20
  size=3D2></FONT></SPAN>&nbsp;</DIV>
  <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt" align=3Dleft><B=20
  style=3D"mso-bidi-font-weight: normal"><I=20
  style=3D"mso-bidi-font-style: normal"><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'; mso-no=
-proof: yes">Stefan=20
  Tzanev<o:p></o:p></SPAN></I></B></P>
  <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt" align=3Dleft><I=20
  style=3D"mso-bidi-font-style: normal"><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'; mso-no=
-proof: yes">Software=20
  Engineer<o:p></o:p></SPAN></I></P>
  <P class=3DMsoNormal style=3D"MARGIN: 0in 0in 0pt" align=3Dleft><I=20
  style=3D"mso-bidi-font-style: normal"><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'; mso-no=
-proof: yes">Software=20
  Applications Group<o:p></o:p></SPAN></I></P>
  <DIV align=3Dleft><I style=3D"mso-bidi-font-style: normal"><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'; mso-no=
-proof: yes; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language:=
 EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Respironics,=
=20
  Inc.</SPAN></I></DIV>
  <DIV align=3Dleft><I style=3D"mso-bidi-font-style: normal"><SPAN=20
  style=3D"FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Courier New'; mso-no=
-proof: yes; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language:=
 EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA">Phone:=20
  724-387-4860</SPAN></I></DIV>
  <DIV>&nbsp;</DIV>=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D=20
  CONFIDENTIALITY NOTICE ---------------------- This message, together with=
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  attachments, may be legally privileged and is confidential information=20
  intended only for the use of the individual or entity to which it is=20
  addressed. It is exempt from disclosure under applicable law including co=
urt=20
  orders. If you are not the intended recipient, you are hereby notified th=
at=20
  any use, dissemination, distribution or copy of this message, or any=20
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  error, please notify the original sender and delete this message, along w=
ith=20
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