tests/libqtest: Print error instead of aborting when env variable is missing

When you currently try to run a test directly from the command line
without setting the QTEST_QEMU_BINARY environment variable first,
you are presented with an unhelpful assertion message like this:

 ERROR:tests/libqtest.c:163:qtest_init_without_qmp_handshake:
 assertion failed: (qemu_binary != NULL)
 Aborted (core dumped)

Let's replace the assert() with a more user friendly error message
instead.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Thomas Huth 2017-05-22 17:40:54 +02:00 committed by Michael Tokarev
parent 7a0bbd55e5
commit 7c933ad61b

View File

@ -160,7 +160,10 @@ QTestState *qtest_init_without_qmp_handshake(const char *extra_args)
const char *qemu_binary;
qemu_binary = getenv("QTEST_QEMU_BINARY");
g_assert(qemu_binary != NULL);
if (!qemu_binary) {
fprintf(stderr, "Environment variable QTEST_QEMU_BINARY required\n");
exit(1);
}
s = g_malloc(sizeof(*s));