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.calcite.avatica.metrics.dropwizard;
  
  import org.apache.calcite.avatica.metrics.noop.NoopMetricsSystemConfiguration;
  
  import com.codahale.metrics.MetricRegistry;
  
  import org.junit.Before;
  import org.junit.Test;
  
  import static org.junit.Assert.assertNotNull;
  
  /**
   * Test class for {@link DropwizardMetricsSystemFactory}.
   */
  public class DropwizardMetricsSystemFactoryTest {
  
    private DropwizardMetricsSystemFactory factory;
  
    @Before public void setup() {
      factory = new DropwizardMetricsSystemFactory();
    }
  
    @Test(expected = IllegalStateException.class) public void testNullConfigurationFails() {
      factory.create(null);
    }
  
    @Test(expected = IllegalStateException.class) public void testUnhandledConfigurationType() {
      factory.create(NoopMetricsSystemConfiguration.getInstance());
    }
  
    @Test public void testHandledConfigurationType() {
      DropwizardMetricsSystem metrics =
          factory.create(new DropwizardMetricsSystemConfiguration(new MetricRegistry()));
      assertNotNull("Expected DropwizardMetricsSystem to be non-null", metrics);
    }
  }
  
  // End DropwizardMetricsSystemFactoryTest.java
  