TESTS: move the default url, lun and iscsi context into a structure

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>

test-tool/test_writesame10_unmap_unaligned.c

@@ -41,7 +41,7 @@ test_writesame10_unmap_unaligned(void)
 	logging(LOG_VERBOSE, "Test that unaligned WRITESAME10 Unmap succeeds. LBPPB==%d", lbppb);
 	for (i = 1; i < lbppb; i++) {
 		logging(LOG_VERBOSE, "Unmap %d blocks using WRITESAME10 at LBA:%d", lbppb - i, i);
-		ret = writesame10(iscsic, tgt_lun, i,
+		ret = writesame10(sd->iscsi_ctx, sd->iscsi_lun, i,
 				  block_size, lbppb - i, 0, 1, 0, 0, buf,
 				  EXPECT_STATUS_GOOD);
 		CU_ASSERT_EQUAL(ret, 0);