tests: add init_shutdown test for realtek_mst_i2c_spi

This can catch regressions like the earlier one in this programmer that
caused initialization to always fail. Requires support for mocking POSIX
file I/O functions because the programmer does ioctls on the opened
file.

TEST=ninja test

Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Change-Id: I5a5c617d1ec35d2a3bbe622e5add82a65eb396f0
Reviewed-on: https://review.coreboot.org/c/flashrom/+/56911
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/tests.c b/tests/tests.c
index ece3e8a5..13686326 100644
--- a/tests/tests.c
+++ b/tests/tests.c
@@ -83,21 +83,49 @@ uint8_t __wrap_sio_read(uint16_t port, uint8_t reg)
 int __wrap_open(const char *pathname, int flags)
 {
 	LOG_ME;
+	if (current_io && current_io->open)
+		return current_io->open(current_io->state, pathname, flags);
 	return MOCK_HANDLE;
 }
 
 int __wrap_open64(const char *pathname, int flags)
 {
 	LOG_ME;
+	if (current_io && current_io->open)
+		return current_io->open(current_io->state, pathname, flags);
 	return MOCK_HANDLE;
 }
 
 int __wrap_ioctl(int fd, unsigned long int request, ...)
 {
 	LOG_ME;
+	if (current_io && current_io->ioctl) {
+		va_list args;
+		int out;
+		va_start(args, request);
+		out = current_io->ioctl(current_io->state, fd, request, args);
+		va_end(args);
+		return out;
+	}
 	return MOCK_HANDLE;
 }
 
+int __wrap_write(int fd, const void *buf, size_t sz)
+{
+	LOG_ME;
+	if (current_io && current_io->write)
+		return current_io->write(current_io->state, fd, buf, sz);
+	return sz;
+}
+
+int __wrap_read(int fd, void *buf, size_t sz)
+{
+	LOG_ME;
+	if (current_io && current_io->read)
+		return current_io->read(current_io->state, fd, buf, sz);
+	return sz;
+}
+
 FILE *__wrap_fopen(const char *pathname, const char *mode)
 {
 	LOG_ME;
@@ -250,6 +278,7 @@ int main(void)
 		cmocka_unit_test(dediprog_init_and_shutdown_test_success),
 		cmocka_unit_test(ene_lpc_init_and_shutdown_test_success),
 		cmocka_unit_test(linux_spi_init_and_shutdown_test_success),
+		cmocka_unit_test(realtek_mst_init_and_shutdown_test_success),
 	};
 	ret |= cmocka_run_group_tests_name("init_shutdown.c tests", init_shutdown_tests, NULL, NULL);