llrandom_tut.cpp

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#include <tut/tut.h>

#include "linden_common.h"
#include "llrand.h"
#include "lltut.h"


namespace tut
{
        struct random
        {
        };

        typedef test_group<random> random_t;
        typedef random_t::object random_object_t;
        tut::random_t tut_random("random");

        template<> template<>
        void random_object_t::test<1>()
        {
                F32 number = 0.0f;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_frand();
                        ensure("frand >= 0", (number >= 0.0f));
                        ensure("frand < 1", (number < 1.0f));
                }
        }

        template<> template<>
        void random_object_t::test<2>()
        {
                F64 number = 0.0f;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_drand();
                        ensure("drand >= 0", (number >= 0.0));
                        ensure("drand < 1", (number < 1.0));
                }
        }

        template<> template<>
        void random_object_t::test<3>()
        {
                F32 number = 0.0f;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_frand(2.0f) - 1.0f;
                        ensure("frand >= 0", (number >= -1.0f));
                        ensure("frand < 1", (number <= 1.0f));
                }
        }

        template<> template<>
        void random_object_t::test<4>()
        {
                F32 number = 0.0f;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_frand(-7.0);
                        ensure("drand <= 0", (number <= 0.0));
                        ensure("drand > -7", (number > -7.0));
                }
        }

        template<> template<>
        void random_object_t::test<5>()
        {
                F64 number = 0.0f;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_drand(-2.0);
                        ensure("drand <= 0", (number <= 0.0));
                        ensure("drand > -2", (number > -2.0));
                }
        }

        template<> template<>
        void random_object_t::test<6>()
        {
                S32 number = 0;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_rand(100);
                        ensure("rand >= 0", (number >= 0));
                        ensure("rand < 100", (number < 100));
                }
        }

        template<> template<>
        void random_object_t::test<7>()
        {
                S32 number = 0;
                for(S32 ii = 0; ii < 100000; ++ii)
                {
                        number = ll_rand(-127);
                        ensure("rand <= 0", (number <= 0));
                        ensure("rand > -127", (number > -127));
                }
        }
}

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