mirror of
https://github.com/jupp0r/prometheus-cpp.git
synced 2026-07-22 14:43:33 +00:00
Gregor Jasny
107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
#include <gmock/gmock.h>
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#include <gtest/gtest.h>
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#include <algorithm>
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#include <iterator>
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#include <map>
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#include <memory>
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#include <string>
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#include <utility>
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#include <vector>
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#include "prometheus/client_metric.h"
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#include "prometheus/counter.h"
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#include "prometheus/family.h"
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#include "prometheus/gauge.h"
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#include "prometheus/histogram.h"
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#include "prometheus/registry.h"
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#include "prometheus/summary.h"
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namespace prometheus {
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namespace {
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class BuilderTest : public testing::Test {
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protected:
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std::vector<ClientMetric::Label> getExpectedLabels() {
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std::vector<ClientMetric::Label> labels;
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auto gen = [](std::pair<const std::string, std::string> p) {
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return ClientMetric::Label{p.first, p.second};
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};
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std::transform(std::begin(const_labels), std::end(const_labels),
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std::back_inserter(labels), gen);
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std::transform(std::begin(more_labels), std::end(more_labels),
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std::back_inserter(labels), gen);
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return labels;
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}
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void verifyCollectedLabels() {
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const auto collected = registry.Collect();
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ASSERT_EQ(1U, collected.size());
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EXPECT_EQ(name, collected.at(0).name);
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EXPECT_EQ(help, collected.at(0).help);
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ASSERT_EQ(1U, collected.at(0).metric.size());
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EXPECT_THAT(collected.at(0).metric.at(0).label,
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testing::UnorderedElementsAreArray(expected_labels));
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}
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Registry registry;
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const std::string name = "some_name";
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const std::string help = "Additional description.";
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const std::map<std::string, std::string> const_labels = {{"key", "value"}};
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const std::map<std::string, std::string> more_labels = {{"name", "test"}};
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const std::vector<ClientMetric::Label> expected_labels = getExpectedLabels();
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};
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TEST_F(BuilderTest, build_counter) {
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auto& family = BuildCounter()
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.Name(name)
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.Help(help)
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.Labels(const_labels)
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.Register(registry);
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family.Add(more_labels);
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verifyCollectedLabels();
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}
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TEST_F(BuilderTest, build_gauge) {
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auto& family = BuildGauge()
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.Name(name)
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.Help(help)
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.Labels(const_labels)
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.Register(registry);
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family.Add(more_labels);
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verifyCollectedLabels();
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}
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TEST_F(BuilderTest, build_histogram) {
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auto& family = BuildHistogram()
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.Name(name)
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.Help(help)
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.Labels(const_labels)
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.Register(registry);
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family.Add(more_labels, Histogram::BucketBoundaries{1, 2});
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verifyCollectedLabels();
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}
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TEST_F(BuilderTest, build_summary) {
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auto& family = BuildSummary()
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.Name(name)
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.Help(help)
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.Labels(const_labels)
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.Register(registry);
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family.Add(more_labels, Summary::Quantiles{});
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verifyCollectedLabels();
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}
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} // namespace
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} // namespace prometheus
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