code: /*
   * Copyright (c) 2022 Airbyte, Inc., all rights reserved.
   */
  
  package io.airbyte.metrics.lib;
  
  import java.util.Collections;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.DisplayName;
  import org.junit.jupiter.api.Test;
  
  class DogStatsDMetricSingletonTest {
  
    @AfterEach
    void tearDown() {
      DogStatsDMetricSingleton.flush();
    }
  
    @Test
    @DisplayName("there should be no exception if we attempt to emit metrics while publish is false")
    void testPublishTrueNoEmitError() {
      Assertions.assertDoesNotThrow(() -> {
        DogStatsDMetricSingleton.initialize(MetricEmittingApps.WORKER,
            new DatadogClientConfiguration("localhost", "1000", false, Collections.emptyList()));
        DogStatsDMetricSingleton.gauge(OssMetricsRegistry.KUBE_POD_PROCESS_CREATE_TIME_MILLISECS, 1);
      });
    }
  
    @Test
    @DisplayName("there should be no exception if we attempt to emit metrics while publish is true")
    void testPublishFalseNoEmitError() {
      Assertions.assertDoesNotThrow(() -> {
        DogStatsDMetricSingleton.initialize(MetricEmittingApps.WORKER,
            new DatadogClientConfiguration("localhost", "1000", true, Collections.emptyList()));
        DogStatsDMetricSingleton.gauge(OssMetricsRegistry.KUBE_POD_PROCESS_CREATE_TIME_MILLISECS, 1);
      });
    }
  
    @Test
    @DisplayName("there should be no exception if we attempt to emit metrics without initializing")
    void testNoInitializeNoEmitError() {
      Assertions.assertDoesNotThrow(() -> {
        DogStatsDMetricSingleton.gauge(OssMetricsRegistry.KUBE_POD_PROCESS_CREATE_TIME_MILLISECS, 1);
      });
    }
  
  }
  