opentelemetry-cpp/sdk/test/metrics/histogram_aggregation_test.cc

132 lines
4.2 KiB
C++

// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <gtest/gtest.h>
#include <initializer_list>
#include <string>
#include <utility>
#include <vector>
#include "common.h"
#include "opentelemetry/common/macros.h"
#include "opentelemetry/context/context.h"
#include "opentelemetry/metrics/meter.h"
#include "opentelemetry/metrics/sync_instruments.h"
#include "opentelemetry/nostd/function_ref.h"
#include "opentelemetry/nostd/shared_ptr.h"
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/nostd/variant.h"
#include "opentelemetry/sdk/instrumentationscope/instrumentation_scope.h"
#include "opentelemetry/sdk/metrics/data/metric_data.h"
#include "opentelemetry/sdk/metrics/data/point_data.h"
#include "opentelemetry/sdk/metrics/export/metric_producer.h"
#include "opentelemetry/sdk/metrics/instruments.h"
#include "opentelemetry/sdk/metrics/meter_provider.h"
#include "opentelemetry/sdk/metrics/metric_reader.h"
#include "opentelemetry/sdk/metrics/push_metric_exporter.h"
#include "opentelemetry/sdk/metrics/view/instrument_selector.h"
#include "opentelemetry/sdk/metrics/view/meter_selector.h"
#include "opentelemetry/sdk/metrics/view/view.h"
#if OPENTELEMETRY_HAVE_WORKING_REGEX
using namespace opentelemetry;
using namespace opentelemetry::sdk::instrumentationscope;
using namespace opentelemetry::sdk::metrics;
TEST(HistogramInstrumentToHistogramAggregation, Double)
{
MeterProvider mp;
auto m = mp.GetMeter("meter1", "version1", "schema1");
std::unique_ptr<MockMetricExporter> exporter(new MockMetricExporter());
std::shared_ptr<MetricReader> reader{new MockMetricReader(std::move(exporter))};
mp.AddMetricReader(reader);
auto h = m->CreateDoubleHistogram("histogram1", "histogram1_description", "histogram1_unit");
h->Record(5, {});
h->Record(10, {});
h->Record(15, {});
h->Record(20, {});
h->Record(25, {});
h->Record(30, {});
h->Record(35, {});
h->Record(40, {});
h->Record(45, {});
h->Record(50, {});
h->Record(1e6, {});
std::vector<HistogramPointData> actuals;
reader->Collect([&](ResourceMetrics &rm) {
for (const ScopeMetrics &smd : rm.scope_metric_data_)
{
for (const MetricData &md : smd.metric_data_)
{
for (const PointDataAttributes &dp : md.point_data_attr_)
{
actuals.push_back(opentelemetry::nostd::get<HistogramPointData>(dp.point_data));
}
}
}
return true;
});
ASSERT_EQ(1, actuals.size());
const auto &actual = actuals.at(0);
ASSERT_EQ(1000275.0, opentelemetry::nostd::get<double>(actual.sum_));
ASSERT_EQ(11, actual.count_);
}
TEST(CounterToHistogram, Double)
{
MeterProvider mp;
auto m = mp.GetMeter("meter1", "version1", "schema1");
std::unique_ptr<MockMetricExporter> exporter(new MockMetricExporter());
std::shared_ptr<MetricReader> reader{new MockMetricReader(std::move(exporter))};
mp.AddMetricReader(reader);
std::unique_ptr<View> view{
new View("view1", "view1_description", "unit", AggregationType::kHistogram)};
std::unique_ptr<InstrumentSelector> instrument_selector{
new InstrumentSelector(InstrumentType::kCounter, "counter1", "unit")};
std::unique_ptr<MeterSelector> meter_selector{new MeterSelector("meter1", "version1", "schema1")};
mp.AddView(std::move(instrument_selector), std::move(meter_selector), std::move(view));
auto h = m->CreateDoubleCounter("counter1", "counter1_description", "unit");
h->Add(5, {});
h->Add(10, {});
h->Add(15, {});
h->Add(20, {});
h->Add(25, {});
h->Add(30, {});
h->Add(35, {});
h->Add(40, {});
h->Add(45, {});
h->Add(50, {});
h->Add(1e6, {});
std::vector<HistogramPointData> actuals;
reader->Collect([&](ResourceMetrics &rm) {
for (const ScopeMetrics &smd : rm.scope_metric_data_)
{
for (const MetricData &md : smd.metric_data_)
{
for (const PointDataAttributes &dp : md.point_data_attr_)
{
actuals.push_back(opentelemetry::nostd::get<HistogramPointData>(dp.point_data));
}
}
}
return true;
});
ASSERT_EQ(1, actuals.size());
const auto &actual = actuals.at(0);
ASSERT_EQ(1000275.0, opentelemetry::nostd::get<double>(actual.sum_));
ASSERT_EQ(11, actual.count_);
}
#endif