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JUnit test case执行顺序

发表于:2017-01-09 作者:raindream   来源:
  
       很多情况下,写了一堆的test case,希望某一些test case必须在某个test case之后执行。比如,测试某一个Dao代码,希望添加的case在最前面,然后是修改或者查询,最后才是删除,以前的做法把所有的方法都集中到某一个方法去执行,一个个罗列好,比较麻烦。比较幸福的事情就是JUnit4.11之后提供了MethodSorters,可以有三种方式对test执行顺序进行指定,如下:
/** * Sorts the test methods by the method name, in lexicographic order, with {@link Method#toString()} used as a tiebreaker */ NAME_ASCENDING(MethodSorter.NAME_ASCENDING), /** * Leaves the test methods in the order returned by the JVM. Note that the order from the JVM may vary from run to run */ JVM(null), /** * Sorts the test methods in a deterministic, but not predictable, order */ DEFAULT(MethodSorter.DEFAULT);
  可以小试牛刀一下:   使用DEFAULT方式:
package com.netease.test.junit; import org.apache.log4j.Logger; import org.junit.FixMethodOrder; import org.junit.Test; import org.junit.runners.MethodSorters; /** * User: hzwangxx * Date: 14-3-31 * Time: 15:35 */ @FixMethodOrder(MethodSorters.DEFAULT) public class TestOrder { private static final Logger LOG = Logger.getLogger(TestOrder.class); @Test public void testFirst() throws Exception { LOG.info("------1--------"); } @Test public void testSecond() throws Exception { LOG.info("------2--------"); } @Test public void testThird() throws Exception { LOG.info("------3--------"); } } /* output: 2014-03-31 16:04:15,984 0    [main] INFO  - ------1-------- 2014-03-31 16:04:15,986 2    [main] INFO  - ------3-------- 2014-03-31 16:04:15,987 3    [main] INFO  - ------2-------- */
  换成按字母排序
package com.netease.test.junit; import org.apache.log4j.Logger; import org.junit.FixMethodOrder; import org.junit.Test; import org.junit.runners.MethodSorters; /** * User: hzwangxx * Date: 14-3-31 * Time: 15:35 */ @FixMethodOrder(MethodSorters.NAME_ASCENDING) public class TestOrder { private static final Logger LOG = Logger.getLogger(TestOrder.class); @Test public void testFirst() throws Exception { LOG.info("------1--------"); } @Test public void testSecond() throws Exception { LOG.info("------2--------"); } @Test public void testThird() throws Exception { LOG.info("------3--------"); } } /* 2014-03-31 16:10:25,360 0    [main] INFO  - ------1-------- 2014-03-31 16:10:25,361 1    [main] INFO  - ------2-------- 2014-03-31 16:10:25,362 2    [main] INFO  - ------3-------- */