intermediate changes

ref:2c3e46cc24129798623a4e38cf6e79cae4c95dac

1 files changed, 17 insertions, 0 deletions

diff --git a/library/cpp/monlib/metrics/metric_registry_ut.cpp b/library/cpp/monlib/metrics/metric_registry_ut.cpp
index afcbcd6801..86d9a52ec0 100644
--- a/library/cpp/monlib/metrics/metric_registry_ut.cpp
+++ b/library/cpp/monlib/metrics/metric_registry_ut.cpp
@@ -299,4 +299,21 @@ Y_UNIT_TEST_SUITE(TMetricRegistryTest) {
                     "\"sensors\":[{\"kind\":\"GAUGE\",\"labels\":{\"my\":\"gauge\"},\"value\":12.34}]}");
         }
     }
+
+    Y_UNIT_TEST(MetricsRegistryClear) {
+        TMetricRegistry registry;
+        registry.Gauge({{"some", "label"}})->Add(1);
+
+        NProto::TSingleSamplesList samples;
+        auto encoder = EncoderProtobuf(&samples);
+        registry.Accept(TInstant::Now(), encoder.Get());
+
+        UNIT_ASSERT(samples.SamplesSize() == 1);
+
+        samples = {};
+        registry.Clear();
+        registry.Accept(TInstant::Now(), encoder.Get());
+
+        UNIT_ASSERT(samples.SamplesSize() == 0);
+    }
 }