Files
celrs/tests/test_serial.c
T
portersky 2761bcb16c refactor: mock serial platform backend in test_serial
test_serial mocked log_write.h, which serial.c never calls.
Split celrs_serial into celrs_serial (platform-agnostic logic)
and celrs_serial_platform (real Win/POSIX backend), matching
the celrs_logger/celrs_log_write split.

test_serial now mocks celrs/platform/serial_internal.h and
links only celrs_serial, so the list-ports tests verify the
max_ports clamping and pass-through logic without hitting the
real registry or /dev.
2026-06-14 20:18:17 +02:00

107 lines
3.1 KiB
C

#include <stdlib.h>
#include "unity.h"
#include "celrs/serial.h"
#include "Mockserial_internal.h"
void setUp(void) { Mockserial_internal_Init(); }
void tearDown(void) { Mockserial_internal_Verify(); Mockserial_internal_Destroy(); }
void test_open_valid_path(void) {
cel_serial_port* port = cel_serial_open("COM3", 400000);
TEST_ASSERT_NOT_NULL(port);
cel_serial_close(port);
}
void test_open_null_path(void) {
TEST_ASSERT_NULL(cel_serial_open(NULL, 400000));
}
void test_open_preserves_path(void) {
cel_serial_port* port = cel_serial_open("/dev/ttyUSB0", 400000);
TEST_ASSERT_NOT_NULL(port);
/* path is stored internally; verify by roundtrip behavior */
cel_serial_close(port);
}
void test_close_null(void) {
/* Should not crash */
cel_serial_close(NULL);
}
void test_read_returns_zero_stub(void) {
cel_serial_port* port = cel_serial_open("COM3", 400000);
TEST_ASSERT_NOT_NULL(port);
uint8_t buf[16];
/* Stub implementation returns 0 */
size_t n = cel_serial_read(port, buf, sizeof(buf), 100);
TEST_ASSERT_EQUAL_UINT(0, n);
cel_serial_close(port);
}
void test_write_returns_zero_stub(void) {
cel_serial_port* port = cel_serial_open("COM3", 400000);
TEST_ASSERT_NOT_NULL(port);
uint8_t buf[4] = {0xC8, 0x10, 0x80, 0x03};
/* Stub implementation returns 0 */
size_t n = cel_serial_write(port, buf, sizeof(buf));
TEST_ASSERT_EQUAL_UINT(0, n);
cel_serial_close(port);
}
void test_flush_no_crash(void) {
cel_serial_port* port = cel_serial_open("COM3", 400000);
TEST_ASSERT_NOT_NULL(port);
cel_serial_flush(port); /* should not crash */
cel_serial_close(port);
}
void test_flush_null(void) {
cel_serial_flush(NULL); /* should not crash */
}
void test_list_ports_null_out(void) {
TEST_ASSERT_EQUAL_INT(-1, cel_serial_list_ports(NULL, 16));
}
void test_list_ports_passes_max_ports_through(void) {
char** ports = NULL;
cel_serial_platform_list_ports_ExpectAndReturn(&ports, 16, 2);
int count = cel_serial_list_ports(&ports, 16);
TEST_ASSERT_EQUAL_INT(2, count);
}
void test_list_ports_zero_max_uses_default(void) {
char** ports = NULL;
cel_serial_platform_list_ports_ExpectAndReturn(&ports, 64, 0);
int count = cel_serial_list_ports(&ports, 0);
TEST_ASSERT_EQUAL_INT(0, count);
}
void test_free_ports_null(void) {
cel_serial_free_ports(NULL, 0); /* should not crash */
}
void test_free_ports_zero_count(void) {
char** empty = (char**)calloc(1, sizeof(char*));
cel_serial_free_ports(empty, 0); /* should not crash */
}
int main(void) {
UNITY_BEGIN();
RUN_TEST(test_open_valid_path);
RUN_TEST(test_open_null_path);
RUN_TEST(test_open_preserves_path);
RUN_TEST(test_close_null);
RUN_TEST(test_read_returns_zero_stub);
RUN_TEST(test_write_returns_zero_stub);
RUN_TEST(test_flush_no_crash);
RUN_TEST(test_flush_null);
RUN_TEST(test_list_ports_null_out);
RUN_TEST(test_list_ports_passes_max_ports_through);
RUN_TEST(test_list_ports_zero_max_uses_default);
RUN_TEST(test_free_ports_null);
RUN_TEST(test_free_ports_zero_count);
return UNITY_END();
}