tests: add a test case for gpiod_simple_event_loop()

Test a very simple use case: wait for a single event of any type.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>

diff --git a/tests/unit/tests-simple-api.c b/tests/unit/tests-simple-api.c
index 9efca8f7a0a479008e32cb6a61a99e02eaf4ae3d..e8d8727c397aaddfc688ea73b973e016c9647524 100644 (file)
--- a/tests/unit/tests-simple-api.c
+++ b/tests/unit/tests-simple-api.c
@@ -114,3 +114,36 @@ static void simple_set_value_multiple_max_lines(void)
 GU_DEFINE_TEST(simple_set_value_multiple_max_lines,
               "gpiod_simple_set_value_multiple() exceed max lines",
               GU_LINES_UNNAMED, { 128 });
+
+struct simple_event_data {
+       bool got_event;
+};
+
+static int simple_event_cb(int evtype GU_UNUSED,
+                          const struct timespec *ts GU_UNUSED,
+                          void *data)
+{
+       struct simple_event_data *evdata = data;
+
+       evdata->got_event = true;
+
+       return GPIOD_EVENT_CB_STOP;
+}
+
+static void simple_event_loop(void)
+{
+       struct simple_event_data evdata = { false };
+       struct timespec ts = { 1, 0 };
+       int status;
+
+       gu_set_event(0, 3, GU_EVENT_ALTERNATING, 100);
+
+       status = gpiod_simple_event_loop("gpiod-unit", gu_chip_name(0), 3,
+                                        false, &ts, simple_event_cb, &evdata);
+
+       GU_ASSERT_RET_OK(status);
+       GU_ASSERT(evdata.got_event);
+}
+GU_DEFINE_TEST(simple_event_loop,
+              "gpiod_simple_event_loop() - single event",
+              GU_LINES_UNNAMED, { 8 });