diff --git a/test/unit/lib/bdev/vbdev_lvol.c/vbdev_lvol_ut.c b/test/unit/lib/bdev/vbdev_lvol.c/vbdev_lvol_ut.c
index 2343db214..d0ec4921c 100644
--- a/test/unit/lib/bdev/vbdev_lvol.c/vbdev_lvol_ut.c
+++ b/test/unit/lib/bdev/vbdev_lvol.c/vbdev_lvol_ut.c
@@ -486,6 +486,11 @@ spdk_blob_io_read(struct spdk_blob *blob, struct spdk_io_channel *channel,
 		  void *payload, uint64_t offset, uint64_t length,
 		  spdk_blob_op_complete cb_fn, void *cb_arg)
 {
+	CU_ASSERT(blob == NULL);
+	CU_ASSERT(channel == g_ch);
+	CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
+	CU_ASSERT(length == g_io->u.bdev.num_blocks);
+	cb_fn(cb_arg, 0);
 }
 
 void
@@ -493,6 +498,11 @@ spdk_blob_io_write(struct spdk_blob *blob, struct spdk_io_channel *channel,
 		   void *payload, uint64_t offset, uint64_t length,
 		   spdk_blob_op_complete cb_fn, void *cb_arg)
 {
+	CU_ASSERT(blob == NULL);
+	CU_ASSERT(channel == g_ch);
+	CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
+	CU_ASSERT(length == g_io->u.bdev.num_blocks);
+	cb_fn(cb_arg, 0);
 }
 
 void
@@ -503,6 +513,7 @@ spdk_blob_io_unmap(struct spdk_blob *blob, struct spdk_io_channel *channel,
 	CU_ASSERT(channel == g_ch);
 	CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
 	CU_ASSERT(length == g_io->u.bdev.num_blocks);
+	cb_fn(cb_arg, 0);
 }
 
 void
@@ -513,6 +524,7 @@ spdk_blob_io_write_zeroes(struct spdk_blob *blob, struct spdk_io_channel *channe
 	CU_ASSERT(channel == g_ch);
 	CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
 	CU_ASSERT(length == g_io->u.bdev.num_blocks);
+	cb_fn(cb_arg, 0);
 }
 
 void
@@ -524,6 +536,7 @@ spdk_blob_io_writev(struct spdk_blob *blob, struct spdk_io_channel *channel,
 	CU_ASSERT(channel == g_ch);
 	CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
 	CU_ASSERT(length == g_io->u.bdev.num_blocks);
+	cb_fn(cb_arg, 0);
 }
 
 void
@@ -535,6 +548,7 @@ spdk_blob_io_readv(struct spdk_blob *blob, struct spdk_io_channel *channel,
 	CU_ASSERT(channel == g_ch);
 	CU_ASSERT(offset == g_io->u.bdev.offset_blocks);
 	CU_ASSERT(length == g_io->u.bdev.num_blocks);
+	cb_fn(cb_arg, 0);
 }
 
 void