core/display: cover more wl_display api

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>

diff --git a/src/core/display.cpp b/src/core/display.cpp
index 8b453b7..db78b4f 100644 (file)
--- a/src/core/display.cpp
+++ b/src/core/display.cpp
@@ -53,4 +53,6 @@ TEST(Display, "Core/Wrapper")
 
        FAIL_IF((wl_display*)display == NULL);
        FAIL_UNLESS_EQUAL(wl_display_get_user_data(display), &display);
+
+       ASSERT(not wl_display_get_error(display));
 }