In Ubuntu tests, skip RPM related content

Ideally, we should make the failing tests distribution-agnostic.
For this moment we can simply skip these tests on systems where RPM isn't installed.

Signed-off-by: Craig Andrews <[email protected]>

Author: candrews

tests/DS/test_ds_misc.sh

@@ -77,6 +77,7 @@ sds_add_multiple_twice(){
 
 function test_eval {
     probecheck "rpminfo" || return 255
+    [ -e "/var/lib/rpm" ] || return 255
     local stderr=$(mktemp -t ${name}.out.XXXXXX)
     $OSCAP xccdf eval "${srcdir}/$1" 2> $stderr
     diff /dev/null $stderr; rm $stderr

tests/DS/test_sds_eval.sh

@@ -12,6 +12,7 @@ set -e -o pipefail
 
 function test_eval {
     probecheck "rpminfo" || return 255
+    [ -e "/var/lib/rpm" ] || return 255
     local stderr=$(mktemp -t ${name}.out.XXXXXX)
     $OSCAP xccdf eval "${srcdir}/$1" 2> $stderr
     diff /dev/null $stderr; rm $stderr