[igt-dev] [PATCH i-g-t 3/3] lib/tests/igt_edid: check number of extensions

[Simon Ser]

Make sure we don't miss an extension by verifying the EDID field.

Signed-off-by: Simon Ser <simon.ser at intel.com>
---
 lib/tests/igt_edid.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/tests/igt_edid.c b/lib/tests/igt_edid.c
index e15748286ac0..fc98f1bb71ce 100644
--- a/lib/tests/igt_edid.c
+++ b/lib/tests/igt_edid.c
@@ -92,6 +92,9 @@ igt_simple_main
 		igt_assert_f(edid_block_checksum(edid),
 			     "checksum failed on %s EDID", f->desc);
 		/* check extension blocks, if any */
+		igt_assert_f(edid[126] == f->exts,
+			     "unexpected number of extensions on %s EDID",
+			     f->desc);
 		for (i = 0; i < f->exts; i++)
 			igt_assert_f(edid_block_checksum(edid + (i + 1) * EDID_LENGTH),
 				     "CEA block checksum failed on %s EDID", f->desc);
-- 
2.22.0