Function testFloatPrintingRandomSamples

test/tests/test_unity_floats.c:1371–1395

#endif

void testFloatPrintingRandomSamples(void)
{
#if !defined(UNITY_TEST_ALL_FLOATS_PRINT_OK) || !defined(USING_OUTPUT_SPY)
    TEST_IGNORE();
#else
    union { float f_value; uint32_t int_value; } u;

    /* These values are not covered by the MINSTD generator */
    u.int_value = 0x00000000; printFloatValue(u.f_value);
    u.int_value = 0x80000000; printFloatValue(u.f_value);
    u.int_value = 0x7fffffff; printFloatValue(u.f_value);
    u.int_value = 0xffffffff; printFloatValue(u.f_value);

    uint32_t a = 1;
    for(int num_tested = 0; num_tested < 1000000; num_tested++)
    {
        /* MINSTD pseudo-random number generator */
        a = (uint32_t)(((uint64_t)a * 48271u) % 2147483647u);

        /* MINSTD does not set the highest bit; test both possibilities */
        u.int_value = a;              printFloatValue(u.f_value);
        u.int_value = a | 0x80000000; printFloatValue(u.f_value);
    }
#endif
}