Make the test suite runners exit 77 when requiring root and running as
regular user, exit 99 for internal errors (unrelated to test cases) and
exit 1 (or any free non-zero value) to indicate test failures.

Signed-off-by: Phil Sutter <phil@nwl.cc>
---
 tests/monitor/run-tests.sh | 11 ++++-------
 tests/py/nft-test.py       | 12 +++++++-----
 tests/shell/run-tests.sh   |  2 +-
 3 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/tests/monitor/run-tests.sh b/tests/monitor/run-tests.sh
index 67d3e618cee07..969afe249201b 100755
--- a/tests/monitor/run-tests.sh
+++ b/tests/monitor/run-tests.sh
@@ -12,18 +12,15 @@ err() {
 	echo "$*" >&2
 }
 
-die() {
-	err "$*"
-	exit 1
-}
-
 if [ "$(id -u)" != "0" ] ; then
-	die "this requires root!"
+	err "this requires root!"
+	exit 77
 fi
 
 testdir=$(mktemp -d)
 if [ ! -d $testdir ]; then
-	die "Failed to create test directory"
+	err "Failed to create test directory"
+	exit 99
 fi
 trap 'rm -rf $testdir; $nft flush ruleset' EXIT
 
diff --git a/tests/py/nft-test.py b/tests/py/nft-test.py
index 984f2b937a077..78f3fa9b27df7 100755
--- a/tests/py/nft-test.py
+++ b/tests/py/nft-test.py
@@ -1519,7 +1519,7 @@ def set_delete_elements(set_element, set_name, table, filename=None,
 
     if os.getuid() != 0:
         print("You need to be root to run this, sorry")
-        return
+        return 77
 
     if not args.no_netns and not spawn_netns():
         print_warning("cannot run in own namespace, connectivity might break")
@@ -1538,11 +1538,11 @@ def set_delete_elements(set_element, set_name, table, filename=None,
     if check_lib_path and not os.path.exists(args.library):
         print("The nftables library at '%s' does not exist. "
               "You need to build the project." % args.library)
-        return
+        return 99
 
     if args.enable_schema and not args.enable_json:
         print_error("Option --schema requires option --json")
-        return
+        return 99
 
     global nftables
     nftables = Nftables(sofile = args.library)
@@ -1555,7 +1555,7 @@ def set_delete_elements(set_element, set_name, table, filename=None,
         print_info("Log will be available at %s" % LOGFILE)
     except IOError:
         print_error("Cannot open log file %s" % LOGFILE)
-        return
+        return 99
 
     file_list = []
     if args.filenames:
@@ -1601,5 +1601,7 @@ def set_delete_elements(set_element, set_name, table, filename=None,
                 print("%d test files, %d files passed, %d unit tests, " % (test_files, files_ok, tests))
                 print("%d error, %d warning" % (errors, warnings))
 
+    return errors != 0
+
 if __name__ == '__main__':
-    main()
+    sys.exit(main())
diff --git a/tests/shell/run-tests.sh b/tests/shell/run-tests.sh
index 2d2e0ad146c80..46f523b962b13 100755
--- a/tests/shell/run-tests.sh
+++ b/tests/shell/run-tests.sh
@@ -96,7 +96,7 @@ _msg() {
 		printf '%s\n' "$level: $*"
 	fi
 	if [ "$level" = E ] ; then
-		exit 1
+		exit 99
 	fi
 }
 
-- 
2.49.0