[mlpack-git] [mlpack] better Boost test output (#344)

[QiaoAn Chen]

I found something that might be useful from [Boost UTF Runtime Parameters](http://www.boost.org/doc/libs/1_57_0/libs/test/doc/html/utf/user-guide/runtime-config/reference.html#utf.user-guide.runtime-config.parameters).

After setting the parameter *log_level=test_suite*, Boost UTF print the currently running test information.

    Running 460 test cases...
    Entering test suite "MLPACKTest"
    Entering test suite "AdaBoostTest"
    Entering test case "HammingLossBoundIris"
    Leaving test case "HammingLossBoundIris"; testing time: 823709mks
    Entering test case "WeakLearnerErrorIris"
    Leaving test case "WeakLearnerErrorIris"; testing time: 840446mks

However, the Log:: objects still output to stdout, interfering UTF output. Logs objects probably should redirect their output to some places.

    Entering test case "DiscreteDistributionRandomTest" 
    [DEBUG]    1.4912e+04   3.0118e+04   4.9700e+03
    Leaving test case "DiscreteDistributionRandomTest"; testing time: 17148mks
    Entering test case "TestBooleanOption"
    [DEBUG] Compiled with debugging symbols.
    Leaving test case "TestBooleanOption"; testing time: 410mks

I want to tackle this problem, but I don't familiar with the framework of mlpack and tools it used(CMake, Boost UTF). Would you like to offer me a help?

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Reply to this email directly or view it on GitHub:
https://github.com/mlpack/mlpack/issues/344#issuecomment-74814802
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