tests: Fix race condition in Drive tests

In load_image(), process all pending main loop events to get an up to date
volume monitor. Not doing that can cause tests to still see the temporarily
added and removed device that was created for loading the image.

1 files changed, 3 insertions, 0 deletions

diff --git a/test/gvfs-test b/test/gvfs-test
index 97172151..5950088c 100755
--- a/test/gvfs-test
+++ b/test/gvfs-test
@@ -930,6 +930,9 @@ class Drive(GvfsTestCase):
             time.sleep(0.2)
 
         # flush volume monitor output
+        ctx = GLib.MainContext().default()
+        while ctx.iteration(False):
+            pass
         self.monitor.stdout.readall()
 
     def setUp(self):