content: /*
   * Copyright 1999-2019 Alibaba Group Holding Ltd.
   *
   * Licensed 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
   *
   *      https://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.csp.sentinel.slots.block.flow.param;
  
  import com.alibaba.csp.sentinel.EntryType;
  import com.alibaba.csp.sentinel.slotchain.ResourceWrapper;
  import com.alibaba.csp.sentinel.slotchain.StringResourceWrapper;
  
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  
  import static org.junit.Assert.*;
  
  /**
   * @author Eric Zhao
   */
  public class ParameterMetricStorageTest {
  
      @Test
      public void testGetNullParamMetric() {
          assertNull(ParameterMetricStorage.getParamMetric(null));
      }
  
      @Test
      public void testInitParamMetrics() {
          ParamFlowRule rule = new ParamFlowRule();
          rule.setParamIdx(1);
          int index = 1;
          String resourceName = "res-" + System.currentTimeMillis();
          ResourceWrapper resourceWrapper = new StringResourceWrapper(resourceName, EntryType.IN);
  
          assertNull(ParameterMetricStorage.getParamMetric(resourceWrapper));
  
          ParameterMetricStorage.initParamMetricsFor(resourceWrapper, rule);
          ParameterMetric metric = ParameterMetricStorage.getParamMetric(resourceWrapper);
          assertNotNull(metric);
          assertNotNull(metric.getRuleTimeCounterMap().get(rule));
          assertNotNull(metric.getThreadCountMap().get(index));
  
          // Duplicate init.
          ParameterMetricStorage.initParamMetricsFor(resourceWrapper, rule);
          assertSame(metric, ParameterMetricStorage.getParamMetric(resourceWrapper));
  
          ParamFlowRule rule2 = new ParamFlowRule();
          rule2.setParamIdx(1);
          assertSame(metric, ParameterMetricStorage.getParamMetric(resourceWrapper));
      }
  
      @Before
      public void setUp() {
          ParameterMetricStorage.getMetricsMap().clear();
      }
  
      @After
      public void tearDown() {
          ParameterMetricStorage.getMetricsMap().clear();
      }
  }
  