static void test_fmt_s32_dec(void)
{
char out[8] = "--------";
int32_t val = 9876;
uint8_t chars = 0;
chars = fmt_s32_dec(out, val);
TEST_ASSERT_EQUAL_INT(4, chars);
out[chars] = '\0';
TEST_ASSERT_EQUAL_STRING("9876", (char *) out);
val = -9876;
chars = fmt_s32_dec(out, val);
TEST_ASSERT_EQUAL_INT(5, chars);
out[chars] = '\0';
TEST_ASSERT_EQUAL_STRING("-9876", (char *) out);
}
static void print_statistics(const matstat_state_t *state, const stat_limits_t *limits)
{
if (state->count == 0) {
print_str("no samples\n");
return;
}
if (state->count == 1) {
print_str("single sample: ");
print_s32_dec((int32_t)state->sum);
print("\n", 1);
return;
}
int32_t mean = matstat_mean(state);
uint64_t variance = matstat_variance(state);
char buf[20];
print(buf, fmt_lpad(buf, fmt_u32_dec(buf, state->count), 8, ' '));
print(" ", 1);
print(buf, fmt_lpad(buf, fmt_s64_dec(buf, state->sum), 9, ' '));
print(" ", 1);
print(buf, fmt_lpad(buf, fmt_u64_dec(buf, state->sum_sq), 12, ' '));
print(" ", 1);
print(buf, fmt_lpad(buf, fmt_s32_dec(buf, state->min), 6, ' '));
print(" ", 1);
print(buf, fmt_lpad(buf, fmt_s32_dec(buf, state->max), 5, ' '));
print(" ", 1);
print(buf, fmt_lpad(buf, fmt_s32_dec(buf, mean), 5, ' '));
print(" ", 1);
print(buf, fmt_lpad(buf, fmt_u64_dec(buf, variance), 6, ' '));
if (limits) {
if ((mean < limits->mean_low) || (limits->mean_high < mean) ||
(variance < limits->variance_low) || (limits->variance_high < variance) ) {
/* mean or variance is outside the expected range, alert the user */
print_str(" <=== SIC!");
}
}
print("\n", 1);
}
