content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License. You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.kafka.common.metrics.internals;
  
  import org.apache.kafka.common.MetricName;
  import org.apache.kafka.common.metrics.MetricConfig;
  import org.apache.kafka.common.metrics.Metrics;
  
  import org.junit.jupiter.api.Test;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import java.util.Collections;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  
  public class IntGaugeSuiteTest {
      private static final Logger log = LoggerFactory.getLogger(IntGaugeSuiteTest.class);
  
      private static IntGaugeSuite<String> createIntGaugeSuite() {
          MetricConfig config = new MetricConfig();
          Metrics metrics = new Metrics(config);
          return new IntGaugeSuite<>(log,
              "mySuite",
              metrics,
              name -> new MetricName(name, "group", "myMetric", Collections.emptyMap()),
              3);
      }
  
      @Test
      public void testCreateAndClose() {
          IntGaugeSuite<String> suite = createIntGaugeSuite();
          assertEquals(3, suite.maxEntries());
          suite.close();
          suite.close();
          suite.metrics().close();
      }
  
      @Test
      public void testCreateMetrics() {
          IntGaugeSuite<String> suite = createIntGaugeSuite();
          suite.increment("foo");
          Map<String, Integer> values = suite.values();
          assertEquals(Integer.valueOf(1), values.get("foo"));
          assertEquals(1, values.size());
          suite.increment("foo");
          suite.increment("bar");
          suite.increment("baz");
          suite.increment("quux");
          values = suite.values();
          assertEquals(Integer.valueOf(2), values.get("foo"));
          assertEquals(Integer.valueOf(1), values.get("bar"));
          assertEquals(Integer.valueOf(1), values.get("baz"));
          assertEquals(3, values.size());
          assertFalse(values.containsKey("quux"));
          suite.close();
          suite.metrics().close();
      }
  
      @Test
      public void testCreateAndRemoveMetrics() {
          IntGaugeSuite<String> suite = createIntGaugeSuite();
          suite.increment("foo");
          suite.decrement("foo");
          suite.increment("foo");
          suite.increment("foo");
          suite.increment("bar");
          suite.decrement("bar");
          suite.increment("baz");
          suite.increment("quux");
          Map<String, Integer> values = suite.values();
          assertEquals(Integer.valueOf(2), values.get("foo"));
          assertFalse(values.containsKey("bar"));
          assertEquals(Integer.valueOf(1), values.get("baz"));
          assertEquals(Integer.valueOf(1), values.get("quux"));
          assertEquals(3, values.size());
          suite.close();
          suite.metrics().close();
      }
  }
  