| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you under the Apache License, Version 2.0 (the |
| // "License"); you may not use this file except in compliance |
| // with the License. You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, |
| // software distributed under the License is distributed on an |
| // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| // KIND, either express or implied. See the License for the |
| // specific language governing permissions and limitations |
| // under the License. |
| #include "util/hdr-histogram.h" |
| #include "testutil/gtest-util.h" |
| |
| namespace impala { |
| |
| class HdrHistogramTest : public testing::Test {}; |
| |
| TEST_F(HdrHistogramTest, HistogramTotalSum) { |
| constexpr uint64_t MAX_VALUE = 10000; |
| HdrHistogram* histogram = new HdrHistogram(MAX_VALUE, 3); |
| |
| histogram->Increment(100); |
| histogram->IncrementBy(10, 50); |
| EXPECT_EQ(histogram->TotalSum(), 600); |
| |
| histogram->Increment(24000); |
| EXPECT_EQ(histogram->TotalSum(), 24600); |
| } |
| |
| TEST_F(HdrHistogramTest, HistogramTotalSumIsMovedToNewHdrHistogram) { |
| constexpr uint64_t MAX_VALUE = 10000; |
| HdrHistogram* histogram = new HdrHistogram(MAX_VALUE, 3); |
| |
| histogram->Increment(100); |
| EXPECT_EQ(histogram->TotalSum(), 100); |
| |
| HdrHistogram* new_histogram = new HdrHistogram(*histogram); |
| EXPECT_EQ(new_histogram->TotalSum(), 100); |
| |
| new_histogram->Increment(200); |
| EXPECT_EQ(new_histogram->TotalSum(), 300); |
| } |
| } // namespace impala |