tests: event: new test case

Add a test case which verifies that we can't request line events for
a set of lines if one of them has already been requested for values.

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

diff --git a/tests/tests-event.c b/tests/tests-event.c
index b4e3419ed645ea160fcedf0be54768221219878c..a5bb28b2387e2521e689b14c9055319c28b1b00b 100644 (file)
--- a/tests/tests-event.c
+++ b/tests/tests-event.c
@@ -228,3 +228,33 @@ static void event_get_fd_when_values_requested(void)
 TEST_DEFINE(event_get_fd_when_values_requested,
            "events - gpiod_line_event_get_fd(): line requested for values",
            0, { 8 });
+
+static void event_request_bulk_fail(void)
+{
+       TEST_CLEANUP(test_close_chip) struct gpiod_chip *chip = NULL;
+       struct gpiod_line_bulk bulk = GPIOD_LINE_BULK_INITIALIZER;
+       struct gpiod_line *line;
+       int rv, i;
+
+       chip = gpiod_chip_open(test_chip_path(0));
+       TEST_ASSERT_NOT_NULL(chip);
+
+       line = gpiod_chip_get_line(chip, 5);
+       TEST_ASSERT_NOT_NULL(line);
+
+       rv = gpiod_line_request_input(line, TEST_CONSUMER);
+       TEST_ASSERT_RET_OK(rv);
+
+       for (i = 0; i < 8; i++) {
+               line = gpiod_chip_get_line(chip, i);
+               TEST_ASSERT_NOT_NULL(line);
+               gpiod_line_bulk_add(&bulk, line);
+       }
+
+       rv = gpiod_line_request_bulk_both_edges_events(&bulk, TEST_CONSUMER);
+       TEST_ASSERT_EQ(rv, -1);
+       TEST_ASSERT_ERRNO_IS(EBUSY);
+}
+TEST_DEFINE(event_request_bulk_fail,
+           "events - failed bulk request (test reversed release)",
+           0, { 8 });