From 5031b5cf997db16c9e3d95eaba8587a3beed892a Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Wed, 11 Jul 2018 09:11:15 -0600
Subject: [PATCH] t/axmap: add zero return overlap cases

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 t/axmap.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/t/axmap.c b/t/axmap.c
index 7a0f3080..ed078853 100644
--- a/t/axmap.c
+++ b/t/axmap.c
@@ -116,11 +116,21 @@ struct overlap_test {
 static int test_overlap(void)
 {
 	struct overlap_test tests[] = {
+		{
+			.start	= 0,
+			.nr	= 0,
+			.ret	= 0,
+		},
 		{
 			.start	= 16,
 			.nr	= 16,
 			.ret	= 16,
 		},
+		{
+			.start	= 16,
+			.nr	= 0,
+			.ret	= 0,
+		},
 		{
 			.start	= 0,
 			.nr	= 32,
-- 
2.25.1