JUnit常用实例

1.常用@标签

 

 

import org.junit.After; import org.junit.AfterClass; import org.junit.Before; import org.junit.BeforeClass; import org.junit.Test; public class NormalTest { @BeforeClass public static void setUpBeforeClass() throws Exception { System.out.println("只执行一次"); } @AfterClass public static void tearDownAfterClass() throws Exception { System.out.println("只执行一次"); } @Before public void setUp() throws Exception { System.out.println("每次调用test方法都执行一次"); } @After public void tearDown() throws Exception { System.out.println("每次调用test方法都执行一次"); } @Test(timeout=1000) public void testTimeout(){ try { Thread.sleep(1200); } catch (InterruptedException e) { e.printStackTrace(); } System.out.println("NormalTest.normalTest()"); } @Test(expected=Exception.class) public void testExpectedException() throws Exception{ System.out.println("NormalTest.expectedExceptionTest()"); throw new Exception(); } }  

 

2.参数化测试

 

import static org.junit.Assert.assertEquals; import java.util.Arrays; import java.util.Collection; import org.junit.Test; import org.junit.runner.RunWith; import org.junit.runners.Parameterized; import org.junit.runners.Parameterized.Parameters; @RunWith(Parameterized.class) public class ParametersTest { private String expected; private String target; @Parameters public static Collection words() { return Arrays.asList(new Object[][] { { "employee_info", "employeeInfo" }, // 测试一般的处理情况 { null, null }, // 测试 null 时的处理情况 { "", "" }, // 测试空字符串时的处理情况 { "employee_info", "EmployeeInfo" }, // 测试当首字母大写时的情况 { "employee_info_a", "employeeInfoA" }, // 测试当尾字母为大写时的情况 { "employee_a_info", "employeeAInfo" } // 测试多个相连字母大写时的情况 }); } /** * 参数化测试必须的构造函数 * * @param expected * 期望的测试结果，对应参数集中的第一个参数 * @param target * 测试数据，对应参数集中的第二个参数 */ public ParametersTest(String expected, String target) { this.expected = expected; this.target = target; } /** * 测试将 Java 对象名称到数据库名称的转换 */ @Test public void wordFormat4DB() { assertEquals(expected, target); } }  

3.测试套件TestSuite

 

 

import junit.framework.Test; import junit.framework.TestSuite; import org.junit.runner.RunWith; import org.junit.runners.Suite; @RunWith(Suite.class) @Suite.SuiteClasses({ NormalTest.class }) public class AllTests { /*public static Test suite() { TestSuite suite = new TestSuite(AllTests.class.getName()); // $JUnit-BEGIN$ suite.addTestSuite(NormalTest.class);//添加测试的类 ,必须是TestCase的子类 // $JUnit-END$ return suite; }*/ }