[libgudev] tests: Fix test assertion with umockdev

[Bastien Nocera <hadess src gnome org>]

commit bf8664a028d8cbc55f9dbc65fef926e2119b9579
Author: James Clarke <jrtc27 jrtc27 com>
Date:   Tue Jan 23 21:03:51 2018 +0000

    tests: Fix test assertion with umockdev
    
    Since 0.9.4, rather than checking for libumockdev-preload being in
    LD_PRELOAD, umockdev_in_mock_environment now checks whether /sys is
    being redirected. This only occurs when $UMOCKDEV_DIR is set, which
    happens inside umockdev_testbed_new, so the assertion must come after
    this call.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=792845

 tests/test-enumerator-filter.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/tests/test-enumerator-filter.c b/tests/test-enumerator-filter.c
index 9c97903..dfcdba2 100644
--- a/tests/test-enumerator-filter.c
+++ b/tests/test-enumerator-filter.c
@@ -37,6 +37,9 @@ test_enumerator_filter (void)
        /* create test bed */
        UMockdevTestbed *testbed = umockdev_testbed_new ();
 
+       /* Relies on a test bed having been set up */
+       g_assert (umockdev_in_mock_environment ());
+
        /* Add 2 devices in the USB subsystem, and one in the DRM subsystem */
        umockdev_testbed_add_device (testbed, "usb", "dev1", NULL,
                                     "idVendor", "0815", "idProduct", "AFFE", NULL,
@@ -74,8 +77,6 @@ int main(int argc, char **argv)
        setlocale (LC_ALL, NULL);
        g_test_init (&argc, &argv, NULL);
 
-       g_assert (umockdev_in_mock_environment ());
-
        g_test_add_func ("/gudev/enumerator_filter", test_enumerator_filter);
 
        return g_test_run ();