make test run faster

20378b08 · Davis King · 0fede57e · 20378b08
Commit 20378b08 authored Dec 18, 2020 by Davis King
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Showing with 11 additions and 14 deletions

dlib/test/rand.cpp dlib/test/rand.cpp +11 -14

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--- a/dlib/test/rand.cpp
+++ b/dlib/test/rand.cpp
@@ -432,22 +432,19 @@ namespace
        print_spinner();
        dlib::rand rnd(0);
-        const size_t N = 1024*1024*128;
+        const size_t N = 1024*1024*5;
-        const double tol = 0.01;
-        for (double lambda = 6 ; lambda < 20 ; lambda += 0.1)
+        const double lambda = 1.5;
-        {
        print_spinner();
        dlib::running_stats<double> stats;
        for (size_t i = 0; i < N; i++) 
            stats.add(rnd.get_random_exponential(lambda));
-            DLIB_TEST(std::abs(stats.mean() - 1.0 / lambda) < tol);
+        DLIB_TEST(std::abs(stats.mean() - 1.0 / lambda) < 0.001);
-            DLIB_TEST(std::abs(stats.variance() - 1.0 / (lambda*lambda)) < tol);
+        DLIB_TEST(std::abs(stats.variance() - 1.0 / (lambda*lambda)) < 0.001);
-            DLIB_TEST(std::abs(stats.skewness() - 2.0) < tol);
+        DLIB_TEST(std::abs(stats.skewness() - 2.0) < 0.01);
        DLIB_TEST(std::abs(stats.ex_kurtosis() - 6.0) < 0.1);
    }
-    }
    class rand_tester : public tester
    {