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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
#include <gtest/gtest.h>
#include <utility>
#include "common.h"
#include "opentelemetry/common/macros.h"
#include "opentelemetry/metrics/meter.h"
#include "opentelemetry/nostd/shared_ptr.h"
#include "opentelemetry/nostd/string_view.h"
#include "opentelemetry/sdk/metrics/instruments.h"
#include "opentelemetry/sdk/metrics/meter.h"
#include "opentelemetry/sdk/metrics/meter_provider.h"
#include "opentelemetry/sdk/metrics/meter_provider_factory.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"
using namespace opentelemetry::sdk::metrics;
TEST(MeterProvider, GetMeter)
{
MeterProvider mp1;
// std::unique_ptr<View> view{std::unique_ptr<View>()};
// MeterProvider mp1(std::move(exporters), std::move(readers), std::move(views);
auto m1 = mp1.GetMeter("test");
auto m2 = mp1.GetMeter("test");
auto m3 = mp1.GetMeter("different", "1.0.0");
auto m4 = mp1.GetMeter("");
auto m5 = mp1.GetMeter(opentelemetry::nostd::string_view{});
auto m6 = mp1.GetMeter("different", "1.0.0", "https://opentelemetry.io/schemas/1.2.0");
ASSERT_NE(nullptr, m1);
ASSERT_NE(nullptr, m2);
ASSERT_NE(nullptr, m3);
ASSERT_NE(nullptr, m6);
// Should return the same instance each time.
ASSERT_EQ(m1, m2);
ASSERT_NE(m1, m3);
ASSERT_EQ(m4, m5);
ASSERT_NE(m3, m6);
// Should be an sdk::metrics::Meter
#ifdef OPENTELEMETRY_RTTI_ENABLED
auto sdkMeter1 = dynamic_cast<Meter *>(m1.get());
#else
auto sdkMeter1 = static_cast<Meter *>(m1.get());
#endif
ASSERT_NE(nullptr, sdkMeter1);
std::unique_ptr<MockMetricExporter> exporter(new MockMetricExporter());
std::unique_ptr<MetricReader> reader{new MockMetricReader(std::move(exporter))};
mp1.AddMetricReader(std::move(reader));
std::unique_ptr<View> view{std::unique_ptr<View>()};
std::unique_ptr<InstrumentSelector> instrument_selector{
new InstrumentSelector(InstrumentType::kCounter, "instru1", "unit1")};
std::unique_ptr<MeterSelector> meter_selector{new MeterSelector("name1", "version1", "schema1")};
mp1.AddView(std::move(instrument_selector), std::move(meter_selector), std::move(view));
// cleanup properly without crash
mp1.ForceFlush();
mp1.Shutdown();
}
#if OPENTELEMETRY_ABI_VERSION_NO >= 2
TEST(MeterProvider, GetMeterAbiv2)
{
MeterProvider mp;
auto m1 = mp.GetMeter("name1", "version1", "url1");
ASSERT_NE(nullptr, m1);
auto m2 = mp.GetMeter("name2", "version2", "url2", nullptr);
ASSERT_NE(nullptr, m2);
auto m3 = mp.GetMeter("name3", "version3", "url3", {{"accept_single_attr", true}});
ASSERT_NE(nullptr, m3);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m3.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 1);
auto attr = attrs.find("accept_single_attr");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<bool>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<bool>(attr->second), true);
}
std::pair<opentelemetry::nostd::string_view, opentelemetry::common::AttributeValue> attr4 = {
"accept_single_attr", true};
auto m4 = mp.GetMeter("name4", "version4", "url4", {attr4});
ASSERT_NE(nullptr, m4);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m4.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 1);
auto attr = attrs.find("accept_single_attr");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<bool>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<bool>(attr->second), true);
}
auto m5 = mp.GetMeter("name5", "version5", "url5", {{"foo", "1"}, {"bar", "2"}});
ASSERT_NE(nullptr, m5);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m5.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 2);
auto attr = attrs.find("bar");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<std::string>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<std::string>(attr->second), "2");
}
std::initializer_list<
std::pair<opentelemetry::nostd::string_view, opentelemetry::common::AttributeValue>>
attrs6 = {{"foo", "1"}, {"bar", 42}};
auto m6 = mp.GetMeter("name6", "version6", "url6", attrs6);
ASSERT_NE(nullptr, m6);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m6.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 2);
auto attr = attrs.find("bar");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<int>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<int>(attr->second), 42);
}
typedef std::pair<opentelemetry::nostd::string_view, opentelemetry::common::AttributeValue> KV;
std::initializer_list<KV> attrs7 = {{"foo", 3.14}, {"bar", "2"}};
auto m7 = mp.GetMeter("name7", "version7", "url7", attrs7);
ASSERT_NE(nullptr, m7);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m7.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 2);
auto attr = attrs.find("foo");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<double>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<double>(attr->second), 3.14);
}
auto m8 = mp.GetMeter("name8", "version8", "url8",
{{"a", "string"},
{"b", false},
{"c", 314159},
{"d", static_cast<unsigned int>(314159)},
{"e", static_cast<int32_t>(-20)},
{"f", static_cast<uint32_t>(20)},
{"g", static_cast<int64_t>(-20)},
{"h", static_cast<uint64_t>(20)},
{"i", 3.1},
{"j", "string"}});
ASSERT_NE(nullptr, m8);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m8.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 10);
auto attr = attrs.find("e");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<int32_t>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<int32_t>(attr->second), -20);
}
std::map<std::string, opentelemetry::common::AttributeValue> attr9{
{"a", "string"},
{"b", false},
{"c", 314159},
{"d", static_cast<unsigned int>(314159)},
{"e", static_cast<int32_t>(-20)},
{"f", static_cast<uint32_t>(20)},
{"g", static_cast<int64_t>(-20)},
{"h", static_cast<uint64_t>(20)},
{"i", 3.1},
{"j", "string"}};
auto m9 = mp.GetMeter("name9", "version9", "url9", attr9);
ASSERT_NE(nullptr, m9);
{
auto meter = static_cast<opentelemetry::sdk::metrics::Meter *>(m9.get());
auto scope = meter->GetInstrumentationScope();
auto attrs = scope->GetAttributes();
ASSERT_EQ(attrs.size(), 10);
auto attr = attrs.find("h");
ASSERT_FALSE(attr == attrs.end());
ASSERT_TRUE(opentelemetry::nostd::holds_alternative<uint64_t>(attr->second));
EXPECT_EQ(opentelemetry::nostd::get<uint64_t>(attr->second), 20);
}
// cleanup properly without crash
mp.ForceFlush();
mp.Shutdown();
}
#endif /* OPENTELEMETRY_ABI_VERSION_NO >= 2 */
#if OPENTELEMETRY_ABI_VERSION_NO >= 2
TEST(MeterProvider, RemoveMeter)
{
MeterProvider mp;
auto m1 = mp.GetMeter("test", "1", "URL");
ASSERT_NE(nullptr, m1);
// Will return the same meter
auto m2 = mp.GetMeter("test", "1", "URL");
ASSERT_NE(nullptr, m2);
ASSERT_EQ(m1, m2);
mp.RemoveMeter("unknown", "0", "");
// Will decrease use_count() on m1 and m2
mp.RemoveMeter("test", "1", "URL");
// Will create a different meter
auto m3 = mp.GetMeter("test", "1", "URL");
ASSERT_NE(nullptr, m3);
ASSERT_NE(m1, m3);
ASSERT_NE(m2, m3);
// Will decrease use_count() on m3
mp.RemoveMeter("test", "1", "URL");
// Will do nothing
mp.RemoveMeter("test", "1", "URL");
// cleanup properly without crash
mp.ForceFlush();
mp.Shutdown();
}
#endif /* OPENTELEMETRY_ABI_VERSION_NO >= 2 */
TEST(MeterProvider, GetMeterEqualityCheck)
{
auto provider = MeterProviderFactory::Create();
// providing the same scope names should return the same Meter
auto meter_library_1a = provider->GetMeter("library_name");
auto meter_library_1b = provider->GetMeter("library_name");
EXPECT_EQ(meter_library_1a, meter_library_1b);
// providing the same scope name and version should return the same meter
auto meter_version_1a = provider->GetMeter("library_name", "v1.0");
auto meter_version_1b = provider->GetMeter("library_name", "v1.0");
EXPECT_EQ(meter_version_1a, meter_version_1b);
// providing the same name, version, and schema urls should return the same meter
auto meter_urla = provider->GetMeter("library_name", "v1.0", "url");
auto meter_urlb = provider->GetMeter("library_name", "v1.0", "url");
EXPECT_EQ(meter_urla, meter_urlb);
}
TEST(MeterProvider, GetMeterInequalityCheck)
{
auto provider = MeterProviderFactory::Create();
auto meter_library_1 = provider->GetMeter("library_1");
auto meter_library_2 = provider->GetMeter("library_2");
auto meter_version_1 = provider->GetMeter("library_1", "v1.0");
auto meter_version_2 = provider->GetMeter("library_1", "v2.0");
auto meter_url_1 = provider->GetMeter("library_1", "v1.0", "url_1");
auto meter_url_2 = provider->GetMeter("library_1", "v1.0", "url_2");
// different scope names should return distinct meters
EXPECT_NE(meter_library_1, meter_library_2);
// different scope versions should return distinct meters
EXPECT_NE(meter_version_1, meter_library_1);
EXPECT_NE(meter_version_1, meter_version_2);
// different scope schema urls should return distinct meters
EXPECT_NE(meter_url_1, meter_library_1);
EXPECT_NE(meter_url_1, meter_version_1);
EXPECT_NE(meter_url_1, meter_url_2);
}
#if OPENTELEMETRY_ABI_VERSION_NO >= 2
TEST(MeterProvider, GetMeterEqualityCheckAbiv2)
{
auto provider = MeterProviderFactory::Create();
// providing the same name, version, schema url and attributes should return the same meter
auto meter_attribute1a = provider->GetMeter("library_name", "v1.0", "url", {{"key", "one"}});
auto meter_attribute1b = provider->GetMeter("library_name", "v1.0", "url", {{"key", "one"}});
EXPECT_EQ(meter_attribute1a, meter_attribute1b);
}
TEST(MeterProvider, GetMeterInequalityCheckAbiv2)
{
auto provider = MeterProviderFactory::Create();
auto meter_1 = provider->GetMeter("library_name", "v1.0", "url");
auto meter_attribute_1 = provider->GetMeter("library_name", "v1.0", "url", {{"key", "one"}});
auto meter_attribute_2 = provider->GetMeter("library_name", "v1.0", "url", {{"key", "two"}});
// different scope attributes should return distinct meters
EXPECT_NE(meter_attribute_1, meter_1);
EXPECT_NE(meter_attribute_1, meter_attribute_2);
}
#endif /* OPENTELEMETRY_ABI_VERSION_NO >= 2 */
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