library/cpp/monlib/metrics/fake_ut.cpp


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#include "fake.h" 
 
#include <library/cpp/testing/unittest/registar.h> 
 
#include <util/generic/ptr.h> 
 
using namespace NMonitoring; 
 
Y_UNIT_TEST_SUITE(TFakeTest) { 
 
    Y_UNIT_TEST(CreateOnStack) { 
        TFakeMetricRegistry registry; 
    } 
 
    Y_UNIT_TEST(CreateOnHeap) { 
        auto registry = MakeAtomicShared<TFakeMetricRegistry>(); 
        UNIT_ASSERT(registry); 
    } 
 
    Y_UNIT_TEST(Gauge) { 
        TFakeMetricRegistry registry(TLabels{{"common", "label"}}); 
 
        IGauge* g = registry.Gauge(MakeLabels({{"my", "gauge"}})); 
        UNIT_ASSERT(g); 
 
        UNIT_ASSERT_DOUBLES_EQUAL(g->Get(), 0.0, 1E-6); 
        g->Set(12.34); 
        UNIT_ASSERT_DOUBLES_EQUAL(g->Get(), 0.0, 1E-6); // no changes 
 
        double val = g->Add(1.2); 
        UNIT_ASSERT_DOUBLES_EQUAL(g->Get(), 0.0, 1E-6); 
        UNIT_ASSERT_DOUBLES_EQUAL(val, 0.0, 1E-6); 
    } 
}