tracing: Add new testcases for hist trigger parsing errors
Add a testcase ensuring that the tracing error_log correctly displays
hist trigger parsing errors.
Signed-off-by: Tom Zanussi <zanussi@kernel.org>
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc
new file mode 100644
index 0000000..d44087a
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc
@@ -0,0 +1,32 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test histogram parser errors
+
+if [ ! -f set_event -o ! -d events/kmem ]; then
+ echo "event tracing is not supported"
+ exit_unsupported
+fi
+
+if [ ! -f events/kmem/kmalloc/trigger ]; then
+ echo "event trigger is not supported"
+ exit_unsupported
+fi
+
+if [ ! -f events/kmem/kmalloc/hist ]; then
+ echo "hist trigger is not supported"
+ exit_unsupported
+fi
+
+[ -f error_log ] || exit_unsupported
+
+check_error() { # command-with-error-pos-by-^
+ ftrace_errlog_check 'hist:kmem:kmalloc' "$1" 'events/kmem/kmalloc/trigger'
+}
+
+check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid,^junk' # INVALID_SORT_FIELD
+check_error 'hist:keys=common_pid:vals=bytes_req:^sort=' # EMPTY_ASSIGNMENT
+check_error 'hist:keys=common_pid:vals=bytes_req:^sort=common_pid,' # EMPTY_SORT_FIELD
+check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid.^junk' # INVALID_SORT_MODIFIER
+check_error 'hist:keys=common_pid:vals=bytes_req,bytes_alloc:^sort=common_pid,bytes_req,bytes_alloc' # TOO_MANY_SORT_FIELDS
+
+exit 0
