[PATCH v2 2/3] unit/test-gatt: Add test for unknown request

[Luiz Augusto von Dentz <luiz.dentz@gmail.com>]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

This send an unknown request (0xbf) to test if a response is sent since
the spec mandates the server to always respond to all requests it
receives:

BLUETOOTH SPECIFICATION Version 5.0 | Vol 3, Part F page 2173

  'A client may send attribute protocol requests to a server, and the
  server shall respond to all requests that it receives.'
---
 unit/test-gatt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/unit/test-gatt.c b/unit/test-gatt.c
index c7a8fa5..371cb46 100644
--- a/unit/test-gatt.c
+++ b/unit/test-gatt.c
@@ -4461,5 +4461,11 @@ int main(int argc, char *argv[])
 			raw_pdu(0x18, 0x01),
 			raw_pdu(0x01, 0x18, 0x25, 0x00, 0x06));
 
+	define_test_server("/robustness/unkown-request",
+			test_server, service_db_1, NULL,
+			raw_pdu(0x03, 0x00, 0x02),
+			raw_pdu(0xbf, 0x00),
+			raw_pdu(0x01, 0xbf, 0x00, 0x00, 0x06));
+
 	return tester_run();
 }
-- 
2.9.3