[PATCH 06/12] tests/qtest/qos-test: add environment variable QTEST_DEBUG

[Christian Schoenebeck]

For now this new environment variable QTEST_DEBUG will cause the
assembled qemu command line to be printed before running each test.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
---
 tests/qtest/qos-test.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tests/qtest/qos-test.c b/tests/qtest/qos-test.c
index 4b1a1922fc..571d1e140a 100644
--- a/tests/qtest/qos-test.c
+++ b/tests/qtest/qos-test.c
@@ -89,6 +89,9 @@ static void qos_set_machines_devices_available(void)
 
 static void restart_qemu_or_continue(char *path)
 {
+    if (getenv("QTEST_DEBUG") != NULL) {
+        printf("run QEMU with: '%s'\n", path);
+    }
     /* compares the current command line with the
      * one previously executed: if they are the same,
      * don't restart QEMU, if they differ, stop previous
-- 
2.20.1