[PATCH 3/4] test: Do not return 1 for err.*.x checks

[eugene.loh@oracle.com]

From: Eugene Loh <eugene.loh@oracle.com>

We can mark tests as expected to fail.  In fact, with .x files,
we can mark XFAIL based on a runtime check.

For err.* tests, however, we are expected to fail anyhow.  So,
having an err.*.x return 1 is at least confusing... certainly
for the runtest.sh script.

In practice, err.*.x files usually return only 0 or 2 -- that is,
we might elect to skip the test.

The sole exception is err.unloaded_var.x, which checks for
/lib/modules/$(uname -r)/kernel/fs/gfs2/gfs2.ko*.  If this module
is missing, the test is supposed to fail, but as it is err.* it is
expected to fail anyhow.  So the counterintuitive result is that
if the module is missing, the test produces XPASS.

Change this err.*.x file to skip the test if the module is missing.

Signed-off-by: Eugene Loh <eugene.loh@oracle.com>
---
 test/unittest/types/err.unloaded_var.x | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/unittest/types/err.unloaded_var.x b/test/unittest/types/err.unloaded_var.x
index 54c61d57d..cc63265a4 100755
--- a/test/unittest/types/err.unloaded_var.x
+++ b/test/unittest/types/err.unloaded_var.x
@@ -2,7 +2,7 @@
 # Licensed under the Universal Permissive License v 1.0 as shown at
 # http://oss.oracle.com/licenses/upl.
 #
-# XFAIL if gfs2.ko not found (exit 1)
+# SKIP if gfs2.ko not found (exit 2)
 [[ ! -e /lib/modules/$(uname -r)/kernel/fs/gfs2/gfs2.ko ]] &&
-[[ ! -e /lib/modules/$(uname -r)/kernel/fs/gfs2/gfs2.ko.xz ]] && exit 1;
+[[ ! -e /lib/modules/$(uname -r)/kernel/fs/gfs2/gfs2.ko.xz ]] && exit 2;
 exit 0
-- 
2.43.5