base/profiler/sample_metadata_unittest.cc

// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/profiler/sample_metadata.h"

#include "base/metrics/metrics_hashes.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace base {

TEST(SampleMetadataTest, ScopedSampleMetadata) {
  MetadataRecorder::ItemArray items;

  ASSERT_EQ(0u, GetSampleMetadataRecorder()->GetItems(&items));

  {
    ScopedSampleMetadata m("myname", 100);

    ASSERT_EQ(1u, GetSampleMetadataRecorder()->GetItems(&items));
    EXPECT_EQ(base::HashMetricName("myname"), items[0].name_hash);
    EXPECT_EQ(100, items[0].value);
  }

  ASSERT_EQ(0u, GetSampleMetadataRecorder()->GetItems(&items));
}

}  // namespace base