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tests/serial: add vmin and vtime test cases to loopback test

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This commit is contained in:
Vanya A. Sergeev
2020-05-28 00:04:13 -05:00
parent e0d8632896
commit 0ca76260f8
1 changed files with 34 additions and 2 deletions
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tests/test_serial.c
+34 -2
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@@ -14,6 +14,8 @@
#include "../src/serial.h"
#define ABS(x) ((x < 0) ? -x : x)
const char *device;
void test_arguments(void) {
@@ -48,6 +50,8 @@ void test_open_config_close(void) {
unsigned int stopbits;
bool xonxoff;
bool rtscts;
unsigned int vmin;
float vtime;
ptest();
@@ -70,6 +74,10 @@ void test_open_config_close(void) {
passert(xonxoff == false);
passert(serial_get_rtscts(serial, &rtscts) == 0);
passert(rtscts == false);
passert(serial_get_vmin(serial, &vmin) == 0);
passert(vmin == 0);
passert(serial_get_vtime(serial, &vtime) == 0);
passert(vtime == 0);
/* Change some stuff around */
passert(serial_set_baudrate(serial, 4800) == 0);
@@ -90,12 +98,17 @@ void test_open_config_close(void) {
passert(serial_set_xonxoff(serial, true) == 0);
passert(serial_get_xonxoff(serial, &xonxoff) == 0);
passert(xonxoff == true);
#if 0
#if 0 /* Test serial port may not support rtscts */
passert(serial_set_rtscts(serial, true) == 0);
passert(serial_get_rtscts(serial, &rtscts) == 0);
passert(rtscts == true);
#endif
/* Test serial port may not support rtscts */
passert(serial_set_vmin(serial, 50) == 0);
passert(serial_get_vmin(serial, &vmin) == 0);
passert(vmin == 50);
passert(serial_set_vtime(serial, 15.3) == 0);
passert(serial_get_vtime(serial, &vtime) == 0);
passert(ABS(vtime - 15.3) < 0.1);
passert(serial_close(serial) == 0);
@@ -160,6 +173,25 @@ void test_loopback(void) {
* thin time boundary ;) */
passert((stop - start) == 0);
/* Test blocking read with vmin=5 termios timeout */
passert(serial_set_vmin(serial, 5) == 0);
/* Write 5, read back 5 (== vmin) */
passert(serial_write(serial, lorem_ipsum, 5) == 5);
passert(serial_flush(serial) == 0);
passert(serial_read(serial, buf, sizeof(buf), -1) == 5);
passert(memcmp(lorem_ipsum, buf, 5) == 0);
/* Test blocking read with vmin=5, vtime=2 termios timeout */
passert(serial_set_vtime(serial, 2) == 0);
/* Write 3, read back 3 (< vmin, but > vtime interbyte timeout) */
passert(serial_write(serial, lorem_ipsum, 3) == 3);
passert(serial_flush(serial) == 0);
start = time(NULL);
passert(serial_read(serial, buf, sizeof(buf), -1) == 3);
stop = time(NULL);
passert(memcmp(lorem_ipsum, buf, 3) == 0);
passert((stop - start) > 1);
passert(serial_close(serial) == 0);
/* Free serial */