content: /*
   * Copyright The OpenTelemetry Authors
   * SPDX-License-Identifier: Apache-2.0
   */
  
  package io.opentelemetry.instrumentation.micrometer.v1_5;
  
  import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.assertThat;
  import static io.opentelemetry.sdk.testing.assertj.OpenTelemetryAssertions.attributeEntry;
  
  import io.micrometer.core.instrument.Counter;
  import io.micrometer.core.instrument.Metrics;
  import io.opentelemetry.instrumentation.testing.junit.InstrumentationExtension;
  import org.assertj.core.api.AbstractIterableAssert;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  public abstract class AbstractCounterTest {
  
    static final String INSTRUMENTATION_NAME = "io.opentelemetry.micrometer-1.5";
  
    protected abstract InstrumentationExtension testing();
  
    @BeforeEach
    void cleanupMeters() {
      Metrics.globalRegistry.forEachMeter(Metrics.globalRegistry::remove);
    }
  
    @Test
    void testCounter() {
      // given
      Counter counter =
          Counter.builder("testCounter")
              .description("This is a test counter")
              .tags("tag", "value")
              .baseUnit("items")
              .register(Metrics.globalRegistry);
  
      // when
      counter.increment();
      counter.increment(2);
  
      // then
      testing()
          .waitAndAssertMetrics(
              INSTRUMENTATION_NAME,
              "testCounter",
              metrics ->
                  metrics.anySatisfy(
                      metric ->
                          assertThat(metric)
                              .hasDescription("This is a test counter")
                              .hasUnit("items")
                              .hasDoubleSumSatisfying(
                                  sum ->
                                      sum.isMonotonic()
                                          .hasPointsSatisfying(
                                              point ->
                                                  point
                                                      .hasValue(3)
                                                      .hasAttributes(
                                                          attributeEntry("tag", "value"))))));
  
      // when
      Metrics.globalRegistry.remove(counter);
      testing().clearData();
      counter.increment();
  
      // then
      testing()
          .waitAndAssertMetrics(INSTRUMENTATION_NAME, "testCounter", AbstractIterableAssert::isEmpty);
    }
  }
  