content: package com.xxl.job.admin.core.util;
  
  import org.hamcrest.core.Is;
  import org.junit.Test;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import static com.xxl.job.admin.core.util.JacksonUtil.writeValueAsString;
  import static org.hamcrest.core.Is.is;
  import static org.junit.Assert.assertThat;
  
  public class JacksonUtilTest {
  
      @Test
      public void shouldWriteValueAsString() {
          //given
          Map<String, String> map = new HashMap<>();
          map.put("aaa", "111");
          map.put("bbb", "222");
  
          //when
          String json = writeValueAsString(map);
  
          //then
          assertThat(json, is("{\"aaa\":\"111\",\"bbb\":\"222\"}"));
      }
  
      @Test
      public void shouldReadValueAsObject() {
          //given
          String jsonString = "{\"aaa\":\"111\",\"bbb\":\"222\"}";
  
          //when
          Map result = JacksonUtil.readValue(jsonString, Map.class);
  
          //then
          assertThat(result.get("aaa"), Is.<Object>is("111"));
          assertThat(result.get("bbb"), Is.<Object>is("222"));
  
      }
  }
  