[grilo] tests: Fix common test failures in GrlNet tests

[Bastien Nocera <hadess src gnome org>]

commit a176b9a03d04d3f1657ffeaff51bd72a2e6ae21e
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Nov 18 14:12:12 2016 +0100

    tests: Fix common test failures in GrlNet tests
    
    The small-delay test fails fairly often, about 20% of the time for a 100
    runs on a non-loaded machine.
    
    We're lucky it doesn't happen more often, as g_timeout_add_seconds() as
    used by grl-net-wc.c will ultimately use g_timeout_set_expiration()
    which might round up timeouts to the above second:
    "
    /* We want the microseconds part of the timeout to land on the
     * 'timer_perturb' mark, but we need to make sure we don't try to
     * set the timeout in the past.  We do this by ensuring that we
     * always only *increase* the expiration time by adding a full
     * second in the case that the microsecond portion decreases.
     */
    "
    
    Bump the threshold to a full second, and verify by raising the delay
    in the grl_net_wc_set_throttling() call.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=774578

 tests/lib-net.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/lib-net.c b/tests/lib-net.c
index 5830729..4fa16b7 100644
--- a/tests/lib-net.c
+++ b/tests/lib-net.c
@@ -44,7 +44,7 @@ typedef struct {
 #define DELAY        2
 #define BIG_DELAY    15     /* Big enough for a timeout */
 
-#define THRESHOLD    (G_USEC_PER_SEC / 10)    /* 0.1 second */
+#define THRESHOLD    1      /* 1 second, see https://bugzilla.gnome.org/show_bug.cgi?id=774578 */
 
 #define NUM_STRESS_TEST 100