content: /*
   * Copyright 1999-2018 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
   *
   *      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.csp.sentinel.dashboard.config;
  
  import static org.junit.Assert.assertEquals;
  
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.contrib.java.lang.system.EnvironmentVariables;
  
  public class DashboardConfigTest {
      @Rule
      public final EnvironmentVariables environmentVariables = new EnvironmentVariables();
  
      @Test
      public void testGetConfigStr() {
          // clear cache
          DashboardConfig.clearCache();
  
          // if not set, return null
          assertEquals(null, DashboardConfig.getConfigStr("a"));
  
          // test property
          System.setProperty("a", "111");
          assertEquals("111", DashboardConfig.getConfigStr("a"));
  
          // test env
          environmentVariables.set("a", "222");
          // return value in cache
          assertEquals("111", DashboardConfig.getConfigStr("a"));
  
          // clear cache and then test
          DashboardConfig.clearCache();
          assertEquals("222", DashboardConfig.getConfigStr("a"));
      }
  
      @Test
      public void testGetConfigInt() {
          // clear cache
          DashboardConfig.clearCache();
  
          // default value
          assertEquals(0, DashboardConfig.getConfigInt("t", 0, 10));
          DashboardConfig.clearCache();
          assertEquals(1, DashboardConfig.getConfigInt("t", 1, 10));
          
          // property, wrong format
          System.setProperty("t", "asdf");
          DashboardConfig.clearCache();
          assertEquals(0, DashboardConfig.getConfigInt("t", 0, 10));
          System.setProperty("t", "");
          DashboardConfig.clearCache();
          assertEquals(0, DashboardConfig.getConfigInt("t", 0, 10));
          
          // min value
          System.setProperty("t", "2");
          DashboardConfig.clearCache();
          assertEquals(2, DashboardConfig.getConfigInt("t", 0, 1));
          DashboardConfig.clearCache();
          assertEquals(10, DashboardConfig.getConfigInt("t", 0, 10));
          DashboardConfig.clearCache();
          assertEquals(2, DashboardConfig.getConfigInt("t", 0, -1));
          
          // env
          environmentVariables.set("t", "20");
          DashboardConfig.clearCache();
          assertEquals(20, DashboardConfig.getConfigInt("t", 0, 10));
          
          // wrong format env var, but it will override property
          environmentVariables.set("t", "20dddd");
          DashboardConfig.clearCache();
          assertEquals(0, DashboardConfig.getConfigInt("t", 0, 10));
          
          // clear env, it will take property
          environmentVariables.set("t", "");
          DashboardConfig.clearCache();
          assertEquals(10, DashboardConfig.getConfigInt("t", 0, 10));
          DashboardConfig.clearCache();
          assertEquals(2, DashboardConfig.getConfigInt("t", 0, 1));
          
          // enable cache
          System.setProperty("t", "666");
          DashboardConfig.clearCache();
          assertEquals(666, DashboardConfig.getConfigInt("t", 0, 1));
          System.setProperty("t", "777");
          assertEquals(666, DashboardConfig.getConfigInt("t", 0, 1));
          System.setProperty("t", "555");
          assertEquals(666, DashboardConfig.getConfigInt("t", 0, 1));
      }
  }
  