+ SECTION("Using XBT_RNG_xbt")
+ {
+ simgrid::xbt::random::set_implem_xbt();
+ simgrid::xbt::random::set_mersenne_seed(12345);
+ REQUIRE_THAT(simgrid::xbt::random::exponential(25), EpsilonApprox(0.00291934351538427348));
+ REQUIRE(simgrid::xbt::random::uniform_int(1, 6) == 4);
+ REQUIRE_THAT(simgrid::xbt::random::uniform_real(0, 1), EpsilonApprox(0.31637556043369124970));
+ REQUIRE_THAT(simgrid::xbt::random::normal(0, 2), EpsilonApprox(1.62746784745133976635));
+
+ constexpr int imin = std::numeric_limits<int>::min();
+ constexpr int imax = std::numeric_limits<int>::max();
+ REQUIRE(simgrid::xbt::random::uniform_int(0, 0) == 0);
+ REQUIRE(simgrid::xbt::random::uniform_int(imin, imin) == imin);
+ REQUIRE(simgrid::xbt::random::uniform_int(imax, imax) == imax);
+
+ REQUIRE(simgrid::xbt::random::uniform_int(-6, -1) == -3);
+ REQUIRE(simgrid::xbt::random::uniform_int(-10, 10) == 7);
+ REQUIRE(simgrid::xbt::random::uniform_int(imin, 2) == -163525263);
+ REQUIRE(simgrid::xbt::random::uniform_int(-2, imax) == 1605979225);
+ REQUIRE(simgrid::xbt::random::uniform_int(imin, imax) == 659577591);
+ }
+
+ SECTION("Using XBT_RNG_std")
+ {
+ std::mt19937 gen;
+ gen.seed(12345);
+
+ simgrid::xbt::random::set_implem_std();
+ simgrid::xbt::random::set_mersenne_seed(12345);
+
+ std::exponential_distribution distA(25.0);
+ std::uniform_int_distribution distB(1, 6);
+ std::uniform_real_distribution distC(0.0, 1.0);
+ std::normal_distribution distD(0.0, 2.0);
+
+ REQUIRE_THAT(simgrid::xbt::random::exponential(25), EpsilonApprox(distA(gen)));
+ REQUIRE(simgrid::xbt::random::uniform_int(1, 6) == distB(gen));
+ REQUIRE_THAT(simgrid::xbt::random::uniform_real(0, 1), EpsilonApprox(distC(gen)));
+ REQUIRE_THAT(simgrid::xbt::random::normal(0, 2), EpsilonApprox(distD(gen)));
+ }
+
+ SECTION("XBT_RNG_std write to a file")