[PATCH i-g-t v5 2/5] lib/igt_core: Add igt_require_fd()

[Lyude <lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>]

From: Lyude Paul <lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>

Like igt_assert_fd(), but using igt_require() instead

Changes since v1:
* Fix documentation error in igt_require_fd() - Petri Latvala

Signed-off-by: Lyude Paul <lyude-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
 lib/igt_core.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/lib/igt_core.h b/lib/igt_core.h
index e74ede8b..5d835260 100644
--- a/lib/igt_core.h
+++ b/lib/igt_core.h
@@ -1021,6 +1021,18 @@ void igt_describe_f(const char *fmt, ...);
 	else igt_debug("Test requirement passed: %s\n", #expr); \
 } while (0)
 
+/**
+ * igt_require_fd:
+ * @fd: file descriptor
+ *
+ * Skips (sub-) test if the given file descriptor is invalid.
+ *
+ * Like igt_require(), but displays the stringified identifier that was supposed
+ * to contain a valid fd on failure.
+ */
+#define igt_require_fd(fd) \
+	igt_require_f(fd >= 0, "file descriptor " #fd " failed\n");
+
 /**
  * igt_skip_on_f:
  * @expr: condition to test
-- 
2.26.2