<p>In <a href="https://github.com/mlpack/mlpack/pull/666#discussion_r65598729">src/mlpack/tests/binarize_test.cpp</a>:</p>
<pre style='color:#555'>> + const umat& rhsCol = answer.col(i);
> + for (size_t j = 0; j < lhsCol.n_rows; ++j)
> + {
> + if (std::abs(rhsCol(j)) < 1e-5)
> + BOOST_REQUIRE_SMALL(lhsCol(j), 1e-5);
> + else
> + BOOST_REQUIRE_CLOSE(lhsCol(j), rhsCol(j), 1e-5);
> + }
> + }
> +}
> +
> +BOOST_AUTO_TEST_CASE(BinarizeThreshold)
> +{
> + mat input(10, 10, fill::randu); // fill input with randome Number
> + mat constMat(10, 10);
> + math::RandomSeed((size_t) std::time(NULL));
</pre>
<p>We should avoid setting the random seed in the tests, this can make specific test errors really hard to reproduce. What I like to do is set the random seed like you did here and run like 1000 tests on my local machine to make sure it works, then remove the line that sets the seed.</p>
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