[CMake] Controlling output of ctest

[Ashok Nalkund]

Hi,
   I use cmake/ctest to build and run my tests. I'm using "ctest -T Test 
-V --output-on-failure --no-compress-output -R ...". I noticed that some 
of the tests have truncated output in the Test.xml report. Also I see 
the truncation length is different in different scenarios. From what I 
see, if the test failed, the length is 307200:
> [DEBUG3] [FeatureInstanceReader][ReadNext] IsGood 1, IsEOF 0
> [DEBUG1...
> The rest of the test output was removed since it exceeds the threshold 
> of 307200 bytes.
> </Value>

   But if the test had passed, the length is 1024:
> push: 
> /local/mnt/workspace/jenkins-slave/workspace/build/arm-android-gcc4...
> The rest of the test output was removed since it exceeds the threshold 
> of 1024 bytes.
> </Value>

   The actual binary executed in the test is a gtest binary. I'm using 
cmake/ctest 2.8.9.

   Can somebody shed light on why the threshold is different in the two 
cases? Also can I completely remove the threshold? I've read that having 
'CTEST_FULL_OUTPUT' anywhere in the output will allow me to do that but 
I'm hoping to avoid having each of my test output that.

TIA,
Ashok