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#include "../../src/random.h"
#include "../lib/runner.h"
SUITE(RandomWithinRange)
/* First generated number with the default seed. */
TEST(RandomWithinRange, first, NULL, NULL, 0, NULL)
{
unsigned random = 42;
unsigned n = RandomWithinRange(&random, 1000, 2000);
munit_assert_int(n, ==, 1650);
return MUNIT_OK;
}
/* Sequence of 10 numbers with the default seed. */
TEST(RandomWithinRange, sequence, NULL, NULL, 0, NULL)
{
unsigned random = 42;
unsigned n[10];
int i;
int j;
for (i = 0; i < 10; i++) {
n[i] = RandomWithinRange(&random, 1000, 2000);
}
for (i = 0; i < 9; i++) {
munit_assert_int(n[i], >=, 1000);
munit_assert_int(n[i], <=, 2000);
for (j = i + 1; j < 10; j++) {
munit_assert_int(n[i], !=, n[j]);
}
}
return MUNIT_OK;
}
/* Change the seed */
TEST(RandomWithinRange, seed, NULL, NULL, 0, NULL)
{
unsigned random = 0;
unsigned n;
int i;
int expected[20] = {1571, 1410, 1735, 1743, 1995, 1353, 1589,
1478, 1753, 1367, 1112, 1216, 1727, 1057,
1061, 1669, 1773, 1425, 1864, 1035};
for (i = 0; i < 20; i++) {
n = RandomWithinRange(&random, 1000, 2000);
munit_assert_int(n, ==, expected[i]);
}
return MUNIT_OK;
}
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