[PATCH 7/8] pert tests: Support metricgroup perf stat JSON output

[kan.liang@linux.intel.com]

From: Kan Liang <kan.liang@linux.intel.com>

A new field metricgroup has been added in the perf stat JSON output.
Support it in the test case.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
 tools/perf/tests/shell/lib/perf_json_output_lint.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/tests/shell/lib/perf_json_output_lint.py b/tools/perf/tests/shell/lib/perf_json_output_lint.py
index b81582a89d36..5e9bd68c83fe 100644
--- a/tools/perf/tests/shell/lib/perf_json_output_lint.py
+++ b/tools/perf/tests/shell/lib/perf_json_output_lint.py
@@ -55,6 +55,7 @@ def check_json_output(expected_items):
       'interval': lambda x: isfloat(x),
       'metric-unit': lambda x: True,
       'metric-value': lambda x: isfloat(x),
+      'metricgroup': lambda x: True,
       'node': lambda x: True,
       'pcnt-running': lambda x: isfloat(x),
       'socket': lambda x: True,
@@ -70,6 +71,8 @@ def check_json_output(expected_items):
         # values and possibly other prefixes like interval, core and
         # aggregate-number.
         pass
+      elif count != expected_items and count >= 1 and count <= 5 and 'metricgroup' in item:
+        pass
       elif count != expected_items:
         raise RuntimeError(f'wrong number of fields. counted {count} expected {expected_items}'
                            f' in \'{item}\'')
-- 
2.35.1