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 com.alibaba.metrics;
  
  
  import org.junit.Assert;
  import org.junit.Test;
  
  import java.util.HashMap;
  import java.util.Map;
  
  public class DynamicMetricSetTest {
  
      MetricRegistry registry = new MetricRegistryImpl();
  
      private class TestDynamicMetricSet implements DynamicMetricSet {
  
          private Map<MetricName, Metric> metrics = new HashMap<MetricName, Metric>();
  
          public TestDynamicMetricSet() {
              MetricName name = MetricName.build("test.counter");
              metrics.put(name, new CounterImpl());
          }
  
          @Override
          public Map<MetricName, Metric> getDynamicMetrics() {
              return metrics;
          }
  
          @Override
          public long lastUpdateTime() {
              return 0;
          }
      }
  
      @Test
      public void testDynamicMetricSet() {
          registry.counter("test.counter2");
          registry.register("dynamic", new TestDynamicMetricSet());
          Assert.assertEquals(2, registry.getCounters().size());
      }
  }
  