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AP_HAL: add simple tests for null-termination

This commit is contained in:
Peter Barker 2018-09-06 13:31:49 +10:00 committed by Andrew Tridgell
parent 9923bd1fd2
commit f90dd0c156
1 changed files with 37 additions and 1 deletions
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38
libraries/AP_HAL/examples/Printf/Printf.cpp
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@ -47,8 +47,10 @@ static const struct {
{ "%.1f", 10.6f, "10.6" },
};
static void test_printf(void)
static void test_printf_floats(void)
{
hal.console->printf("Starting Printf floats test\n");
uint8_t i;
char buf[30];
uint8_t failures = 0;
@ -75,6 +77,40 @@ static void test_printf(void)
hal.console->printf("%u failures\n", (unsigned)failures);
}
static void test_printf_null_termination(void)
{
hal.console->printf("Starting Printf null-termination tests\n");
{
char buf[10];
int ret = hal.util->snprintf(buf,sizeof(buf), "%s", "ABCDEABCDE");
const int want = 9;
if (ret != want) {
hal.console->printf("snprintf returned %d expected %d\n", ret, want);
}
if (!strncmp(buf, "ABCDEABCD", sizeof(buf))) {
hal.console->printf("Bad snprintf string (%s)\n", buf);
}
}
{
char buf[10];
int ret = hal.util->snprintf(buf,sizeof(buf), "ABCDEABCDE");
const int want = 9;
if (ret != want) {
hal.console->printf("snprintf returned %d expected %d\n", ret, want);
}
if (!strncmp(buf, "ABCDEABCD", sizeof(buf))) {
hal.console->printf("Bad snprintf string (%s)\n", buf);
}
}
}
static void test_printf(void)
{
test_printf_floats();
test_printf_null_termination();
}
void loop(void)
{
test_printf();