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Will Thompson authored
Previously, calling: g_dbus_is_supported_address ("some-imaginary-transport:", NULL) correctly returned FALSE; but calling: g_dbus_is_supported_address ("some-imaginary-transport:", &error) crashed with: GLib-GIO:ERROR:../gio/gdbusaddress.c:434:g_dbus_is_supported_address: assertion failed: (ret || (!ret && (error == NULL || *error != NULL))) This was because, if the address component did not start with a known transport, no error was set. Fix this, reusing an error string used by the corresponding else branch in g_dbus_address_connect(), and adjust the test to pass both NULL and non-NULL GError **s to this function in every test case. This case: g_assert (!g_dbus_is_supported_address ("some-imaginary-transport:foo=bar;unix:path=/this/is/valid", NULL)); would have caught this bug with a non-NULL GError **.