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tests/drive_del-test: Fix harmless JSON interpolation bug

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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 2f84a92ec6.

Fix the obvious way.  The command now fails because the drive is
empty, like it did before commit 2f84a92ec6.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180823164025.12553-55-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2018-08-23 18:40:21 +02:00
parent 86cdf9ec8d
commit 83273e84d9
1 changed files with 6 additions and 2 deletions
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8
tests/drive_del-test.c
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@ -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");