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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#ifndef ENABLE_METRICS_PREVIEW
# include <gtest/gtest.h>
# include "opentelemetry/sdk/metrics/aggregation/histogram_aggregation.h"
# include "opentelemetry/sdk/metrics/aggregation/lastvalue_aggregation.h"
# include "opentelemetry/sdk/metrics/aggregation/sum_aggregation.h"
# include "opentelemetry/nostd/variant.h"
using namespace opentelemetry::sdk::metrics;
namespace nostd = opentelemetry::nostd;
TEST(Aggregation, LongSumAggregation)
{
LongSumAggregation aggr;
auto data = aggr.ToPoint();
ASSERT_TRUE(nostd::holds_alternative<SumPointData>(data));
auto sum_data = nostd::get<SumPointData>(data);
ASSERT_TRUE(nostd::holds_alternative<long>(sum_data.value_));
EXPECT_EQ(nostd::get<long>(sum_data.value_), 0l);
EXPECT_NO_THROW(aggr.Aggregate(12l, {}));
EXPECT_NO_THROW(aggr.Aggregate(0l, {}));
sum_data = nostd::get<SumPointData>(aggr.ToPoint());
EXPECT_EQ(nostd::get<long>(sum_data.value_), 12l);
}
TEST(Aggregation, DoubleSumAggregation)
{
DoubleSumAggregation aggr;
auto data = aggr.ToPoint();
ASSERT_TRUE(nostd::holds_alternative<SumPointData>(data));
auto sum_data = nostd::get<SumPointData>(data);
ASSERT_TRUE(nostd::holds_alternative<double>(sum_data.value_));
EXPECT_EQ(nostd::get<double>(sum_data.value_), 0);
EXPECT_NO_THROW(aggr.Aggregate(12.0, {}));
EXPECT_NO_THROW(aggr.Aggregate(1.0, {}));
sum_data = nostd::get<SumPointData>(aggr.ToPoint());
EXPECT_EQ(nostd::get<double>(sum_data.value_), 13.0);
}
TEST(Aggregation, LongLastValueAggregation)
{
LongLastValueAggregation aggr;
auto data = aggr.ToPoint();
ASSERT_TRUE(nostd::holds_alternative<LastValuePointData>(data));
auto lastvalue_data = nostd::get<LastValuePointData>(data);
ASSERT_TRUE(nostd::holds_alternative<long>(lastvalue_data.value_));
EXPECT_EQ(lastvalue_data.is_lastvalue_valid_, false);
EXPECT_NO_THROW(aggr.Aggregate(12l, {}));
EXPECT_NO_THROW(aggr.Aggregate(1l, {}));
lastvalue_data = nostd::get<LastValuePointData>(aggr.ToPoint());
EXPECT_EQ(nostd::get<long>(lastvalue_data.value_), 1.0);
}
TEST(Aggregation, DoubleLastValueAggregation)
{
DoubleLastValueAggregation aggr;
auto data = aggr.ToPoint();
ASSERT_TRUE(nostd::holds_alternative<LastValuePointData>(data));
auto lastvalue_data = nostd::get<LastValuePointData>(data);
ASSERT_TRUE(nostd::holds_alternative<double>(lastvalue_data.value_));
EXPECT_EQ(lastvalue_data.is_lastvalue_valid_, false);
EXPECT_NO_THROW(aggr.Aggregate(12.0, {}));
EXPECT_NO_THROW(aggr.Aggregate(1.0, {}));
lastvalue_data = nostd::get<LastValuePointData>(aggr.ToPoint());
EXPECT_EQ(nostd::get<double>(lastvalue_data.value_), 1.0);
}
TEST(Aggregation, LongHistogramAggregation)
{
LongHistogramAggregation aggr;
auto data = aggr.ToPoint();
ASSERT_TRUE(nostd::holds_alternative<HistogramPointData>(data));
auto histogram_data = nostd::get<HistogramPointData>(data);
ASSERT_TRUE(nostd::holds_alternative<long>(histogram_data.sum_));
ASSERT_TRUE(nostd::holds_alternative<std::list<long>>(histogram_data.boundaries_));
EXPECT_EQ(nostd::get<long>(histogram_data.sum_), 0);
EXPECT_EQ(histogram_data.count_, 0);
EXPECT_NO_THROW(aggr.Aggregate(12l, {})); // lies in fourth bucket
EXPECT_NO_THROW(aggr.Aggregate(100l, {})); // lies in eight bucket
histogram_data = nostd::get<HistogramPointData>(aggr.ToPoint());
EXPECT_EQ(nostd::get<long>(histogram_data.sum_), 112);
EXPECT_EQ(histogram_data.count_, 2);
EXPECT_EQ(histogram_data.counts_[3], 1);
EXPECT_EQ(histogram_data.counts_[7], 1);
EXPECT_NO_THROW(aggr.Aggregate(13l, {})); // lies in fourth bucket
EXPECT_NO_THROW(aggr.Aggregate(252l, {})); // lies in ninth bucket
histogram_data = nostd::get<HistogramPointData>(aggr.ToPoint());
EXPECT_EQ(histogram_data.count_, 4);
EXPECT_EQ(histogram_data.counts_[3], 2);
EXPECT_EQ(histogram_data.counts_[8], 1);
// Merge
LongHistogramAggregation aggr1;
aggr1.Aggregate(1l, {});
aggr1.Aggregate(11l, {});
aggr1.Aggregate(26l, {});
LongHistogramAggregation aggr2;
aggr2.Aggregate(2l, {});
aggr2.Aggregate(3l, {});
aggr2.Aggregate(13l, {});
aggr2.Aggregate(28l, {});
aggr2.Aggregate(105l, {});
auto aggr3 = aggr1.Merge(aggr2);
histogram_data = nostd::get<HistogramPointData>(aggr3->ToPoint());
EXPECT_EQ(histogram_data.count_, 8); // 3 each from aggr1 and aggr2
EXPECT_EQ(histogram_data.counts_[1], 3); // 1, 2, 3
EXPECT_EQ(histogram_data.counts_[3], 2); // 11, 13
EXPECT_EQ(histogram_data.counts_[4], 2); // 25, 28
EXPECT_EQ(histogram_data.counts_[7], 1); // 105
// Diff
auto aggr4 = aggr1.Diff(aggr2);
histogram_data = nostd::get<HistogramPointData>(aggr4->ToPoint());
EXPECT_EQ(histogram_data.count_, 2); // aggr2:5 - aggr1:3
EXPECT_EQ(histogram_data.counts_[1], 1); // aggr2(2, 3) - aggr1(1)
EXPECT_EQ(histogram_data.counts_[3], 0); // aggr2(13) - aggr1(11)
EXPECT_EQ(histogram_data.counts_[4], 0); // aggr2(28) - aggr1(25)
EXPECT_EQ(histogram_data.counts_[7], 1); // aggr2(105) - aggr1(0)
}
TEST(Aggregation, DoubleHistogramAggregation)
{
DoubleHistogramAggregation aggr;
auto data = aggr.ToPoint();
ASSERT_TRUE(nostd::holds_alternative<HistogramPointData>(data));
auto histogram_data = nostd::get<HistogramPointData>(data);
ASSERT_TRUE(nostd::holds_alternative<double>(histogram_data.sum_));
ASSERT_TRUE(nostd::holds_alternative<std::list<double>>(histogram_data.boundaries_));
EXPECT_EQ(nostd::get<double>(histogram_data.sum_), 0);
EXPECT_EQ(histogram_data.count_, 0);
EXPECT_NO_THROW(aggr.Aggregate(12.0, {})); // lies in fourth bucket
EXPECT_NO_THROW(aggr.Aggregate(100.0, {})); // lies in eight bucket
histogram_data = nostd::get<HistogramPointData>(aggr.ToPoint());
EXPECT_EQ(nostd::get<double>(histogram_data.sum_), 112);
EXPECT_EQ(histogram_data.count_, 2);
EXPECT_EQ(histogram_data.counts_[3], 1);
EXPECT_EQ(histogram_data.counts_[7], 1);
EXPECT_NO_THROW(aggr.Aggregate(13.0, {})); // lies in fourth bucket
EXPECT_NO_THROW(aggr.Aggregate(252.0, {})); // lies in ninth bucket
histogram_data = nostd::get<HistogramPointData>(aggr.ToPoint());
EXPECT_EQ(histogram_data.count_, 4);
EXPECT_EQ(histogram_data.counts_[3], 2);
EXPECT_EQ(histogram_data.counts_[8], 1);
EXPECT_EQ(nostd::get<double>(histogram_data.sum_), 377);
// Merge
DoubleHistogramAggregation aggr1;
aggr1.Aggregate(1.0, {});
aggr1.Aggregate(11.0, {});
aggr1.Aggregate(25.1, {});
DoubleHistogramAggregation aggr2;
aggr2.Aggregate(2.0, {});
aggr2.Aggregate(3.0, {});
aggr2.Aggregate(13.0, {});
aggr2.Aggregate(28.1, {});
aggr2.Aggregate(105.0, {});
auto aggr3 = aggr1.Merge(aggr2);
histogram_data = nostd::get<HistogramPointData>(aggr3->ToPoint());
EXPECT_EQ(histogram_data.count_, 8); // 3 each from aggr1 and aggr2
EXPECT_EQ(histogram_data.counts_[1], 3); // 1.0, 2.0, 3.0
EXPECT_EQ(histogram_data.counts_[3], 2); // 11.0, 13.0
EXPECT_EQ(histogram_data.counts_[4], 2); // 25.1, 28.1
EXPECT_EQ(histogram_data.counts_[7], 1); // 105.0
// Diff
auto aggr4 = aggr1.Diff(aggr2);
histogram_data = nostd::get<HistogramPointData>(aggr4->ToPoint());
EXPECT_EQ(histogram_data.count_, 2); // aggr2:5 - aggr1:3
EXPECT_EQ(histogram_data.counts_[1], 1); // aggr2(2.0, 3.0) - aggr1(1.0)
EXPECT_EQ(histogram_data.counts_[3], 0); // aggr2(13.0) - aggr1(11.0)
EXPECT_EQ(histogram_data.counts_[4], 0); // aggr2(28.1) - aggr1(25.1)
EXPECT_EQ(histogram_data.counts_[7], 1); // aggr2(105.0) - aggr1(0)
}
#endif
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