From 83273e84d9646bb902e1debfdcb68c8afd38614f Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Thu, 23 Aug 2018 18:40:21 +0200 Subject: [PATCH] tests/drive_del-test: Fix harmless JSON interpolation bug test_after_failed_device_add() does this: response = qmp("{'execute': 'device_add'," " 'arguments': {" " 'driver': 'virtio-blk-%s'," " 'drive': 'drive0'" "}}", qvirtio_get_dev_type()); Wrong. An interpolation specification must be a JSON token, it doesn't work within JSON string tokens. The code above doesn't use the value of qvirtio_get_dev_type(), and sends arguments {"driver": "virtio-blk-%s", "drive": "drive0"}} The command fails because there is no driver named "virtio-blk-%". Harmless, since the test wants the command to fail. Screwed up in commit 2f84a92ec63. Fix the obvious way. The command now fails because the drive is empty, like it did before commit 2f84a92ec63. Signed-off-by: Markus Armbruster Reviewed-by: Eric Blake Message-Id: <20180823164025.12553-55-armbru@redhat.com> --- tests/drive_del-test.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/tests/drive_del-test.c b/tests/drive_del-test.c index 2d0b176b36..673c10140f 100644 --- a/tests/drive_del-test.c +++ b/tests/drive_del-test.c @@ -65,9 +65,13 @@ static void test_drive_without_dev(void) static void test_after_failed_device_add(void) { + char driver[32]; QDict *response; QDict *error; + snprintf(driver, sizeof(driver), "virtio-blk-%s", + qvirtio_get_dev_type()); + qtest_start("-drive if=none,id=drive0"); /* Make device_add fail. If this leaks the virtio-blk device then a @@ -75,9 +79,9 @@ static void test_after_failed_device_add(void) */ response = qmp("{'execute': 'device_add'," " 'arguments': {" - " 'driver': 'virtio-blk-%s'," + " 'driver': %s," " 'drive': 'drive0'" - "}}", qvirtio_get_dev_type()); + "}}", driver); g_assert(response); error = qdict_get_qdict(response, "error"); g_assert_cmpstr(qdict_get_try_str(error, "class"), ==, "GenericError");