Index: base/metrics/sparse_histogram_unittest.cc |
=================================================================== |
--- base/metrics/sparse_histogram_unittest.cc (revision 0) |
+++ base/metrics/sparse_histogram_unittest.cc (revision 0) |
@@ -0,0 +1,40 @@ |
+// Copyright (c) 2012 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 <string> |
+ |
+#include "base/memory/scoped_ptr.h" |
+#include "base/metrics/sparse_histogram.h" |
+#include "testing/gtest/include/gtest/gtest.h" |
+ |
+namespace base { |
+ |
+class SparseHistogramTest : public testing::Test { |
+ protected: |
+ scoped_ptr<SparseHistogram> NewSparseHistogram(const std::string& name) { |
+ return scoped_ptr<SparseHistogram>(new SparseHistogram(name)); |
+ } |
+}; |
+ |
+TEST_F(SparseHistogramTest, BasicTest) { |
+ scoped_ptr<SparseHistogram> histogram(NewSparseHistogram("Sparse1")); |
+ std::map<HistogramBase::Sample, HistogramBase::Count> sample; |
+ histogram->SnapshotSample(&sample); |
+ |
+ ASSERT_EQ(0u, sample.size()); |
+ |
+ histogram->Add(100); |
+ histogram->SnapshotSample(&sample); |
+ ASSERT_EQ(1u, sample.size()); |
+ EXPECT_EQ(1, sample[100]); |
+ |
+ histogram->Add(100); |
+ histogram->Add(101); |
+ histogram->SnapshotSample(&sample); |
+ ASSERT_EQ(2u, sample.size()); |
+ EXPECT_EQ(2, sample[100]); |
+ EXPECT_EQ(1, sample[101]); |
+} |
+ |
+} // namespace base |
Property changes on: base/metrics/sparse_histogram_unittest.cc |
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Added: svn:eol-style |
+ LF |